Lab Gruppen D 20:4L Operation Manual

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Rev. 3.0.1

Item no. OM–DSERIES–LAKE

D SERIES

High–Power installation platform

Lake Variants:

D 200:4L D 120:4L

D 80:4L D 40:4L D 20:4L

D 10:4L

Incorporating technologies from

Operation Manual

1. Important safety instructions

Before using the device, be sure to carefully read the Safety Instructions. Keep this document with the device at all times.

1. Read these instructions.

2. Keep these instructions

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with a dry cloth.

7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.

8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including ampliers) that produce heat.

9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding-type plug has two blades and a third grounding prong. The wide blade or the third prong is provided for your safety. If the provided

plug does not t into your outlet, consult an electrician for

replacement of the obsolete outlet.

10. Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.

11. Only use attachments/accessories specied by the manufacturer.

12. Use only with a cart, stand, tripod, bracket, or table specied by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.

13. Unplug this apparatus during lightning storms or when unused for long periods of time.

14. Refer all servicing to qualied service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.

15. Use the mains plug to disconnect the appartus from the mains.

16. WARNING: To reduce the risk of re or electric shock, do not expose this apparatus to rain or moisture.

17. Do not expose this equipment to dripping or splashing and

ensure that no objects lled with liquids, such as vases, are

placed on the equipment.

18. The mains plug of the power supply cord shall remain readily operable.

19. Do not connect the unit’s output to any other voltage source such as battery, mains source, or power supply, regardless of whether the unit is turned on or off.

20. Do not remove the top (or bottom) cover. Removal of the cover will expose hazardous voltages. There are no user serviceable parts inside and removal may void the warranty.

21. An experienced user shall always supervise this professional audio equipment, especially if inexperienced adults or minors are using the equipment.

22. The US National Differences clause 16.3 requires that

network cables must be ame rated VW-1.

2. Approvals

This equipment conforms to the requirements of the EMC Directive 2014/30/EU and the requirements of the Low Voltage Directive 2014/3 5/EU.

Standards applied: EMC Emission EN55103-1, E4 EMC Immunity EN55103-2, E5, with S/N below 1% at normal operation level. Electrical Safety EN60065, Class I

This equipment is tested and listed accordin g to the U.S. safety standard ANSI/ UL 60065 and Canadian safety standard CSA C22.2 NO. 60065. Intertek made the tests and they are a Nationally Recognized Testing Laboratory

(NRTL).

3. Warnings

3.1. Explanation of warning symbols

The lightning bolt triangle is used to alert the user to the presence of un-insulated “dangerous voltages” within the unit’s chassis that may be

of sufcient magnitude to constitute a

risk of electric shock to humans.

The exclamation point triangle is used to alert the user to presence of important operating and service instructions in the literature accompanying the product.

3.2. Warnings

To prevent electric shock do not remove top or bottom covers. No user serviceable parts inside, refer servicing to

qualied service personnel.

Français: À prévenir le choc électrique n’enlevez pas les couvercles. Il n’y a pas des parties serviceable à l’intérieur, tous

reparations doit etre faire par personnel qualié seulment.

D SERIES Lake Operation Manual rev 3.0.1

3. Warnings

To completely disconnect this equipment from the AC mains, disconnect the power supply cord plug from the AC receptacle. The mains plug of the power supply cord shall remain readily operable. Français: Pour démonter complètement l’équipement de l’alimentation générale, démonter le câble d’alimentation de son réceptacle. La prise d’alimentation restera aisément fonctionnelle.

To reduce risk of re or electric shock, do not expose this

apparatus to rain or moisture. Français: Pour réduire les risques d’incendie ou de choc électrique, n’exposez pas l’appareil à la pluie ou à l’humidité.

Do not expose this system/apparatus to dripping or splashing

and ensure that no objects lled with liquids, such as vases,

are placed on the apparatus. Français: N’exposez pas ce système/appareil au ruissellement ni aux éclaboussures et assurez-vous qu’aucun objet contenant du liquide tel qu’un vase n’est placé sur l’appareil.

This apparatus must be connected to a mains socket outlet with a protective earthing connection. Français: Cet appareil doit être raccordé à une prise secteur avec terre de protection.

The mains plug is used as a disconnect device and shall remain readily operable. Français: Lorsque la prise du réseau d’alimentation est utilisés comme dispositif de déconnexion, ce dispositif doit demeuré aisément accessible.

3.3. Caution

To reduce the risk of re or electric shock, do not remove screws. No user-serviceable parts inside. Refer servicing to qualied

service personnel. Français: Pour réduire le risque d’incendie ou de choc électrique, ne pas retirer les vis. Aucune pièce réparable par

l’utilisateur. Coner l’entretien àpersonnel qualié.

3.4. User responsibility

3.4.1. Mains connection grounding

Your amplier must be connected to a grounded socket outlet.

3.4.2. Speaker output hazard on ampliﬁers

Ampliers are capable of producing hazardous output

voltages. To avoid electrical shock, do not touch any exposed

speaker wiring while the amplier is operating. The external

wiring connected to the speaker terminals shall be installed

by a qualied person, or ready-made leads or cords of

appropriate capacity shall be used.

As the power output channels on ampliers produce high

voltage, do not connect or disconnect speaker cables when the mains power is on.

3.4.3. Radio interference

A sample of this product has been tested and complies with the limits for the European Electro Magnetic Compatibility

(EMC) directive. This equipment has also been tested and

found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference from electrical equipment. This product uses radio frequency energy and if not used or installed in accordance with these operating instructions, may cause interference to other equipment, such as radio receivers.

This Class A digital apparatus complies with Canadian ICES-003. Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada.

However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment on and off, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the antenna.

• Increase the separation between the equipment and

re cei ver.

• Connect the equipment to an outlet on a circuit different from that to which the receiver is connected.

• Check if the affected unit complies with the EMC limits for immunity, (CE-labeled). If not, address the problem with

the manufacturer or supplier. All electrical products sold in the EC must be approved for immunity against electromagnetic elds, high voltage ashes, and radio interference.

• Consult the dealer or an experienced radio/TV technician for help.

3.4.4. Speaker damage

Amplier apparatus is very powerful and can be potentially

dangerous to both loudspeakers and humans alike. Many loudspeakers can be easily damaged or destroyed by overpowering them. Always check the speaker’s continuous

and peak power capabilities. Although the ampliers

attenuators can be used to reduce the overall gain, an increase of the input signal can result in full output power, which may cause damage to connected speakers.

3.4.5. Maintenance

For safe and reliable operation, the dust lters on both sides

of the front panel, behind the grilles, should be removed and

cleaned regularly to ensure maximum airow through the

device.

If the dust lters are not maintained there will be safety

risks; for example, high internal temperatures could ignite

the dust and start a re. There is also a risk that the unit will malfunction since it is dependent on constant airow from front to rear. If the dust lters are not clean and the unit

malfunctions, any resulting problems will not be covered by the warranty.

D SERIES Lake Operation Manual rev 3.0.1

4. Table of Contents

1. Important safety instructions 2

2. Approvals 2

3. Warnings 2

3.1. Explanation of warning symbols 2

3.2. Warnings 2

3.3. Caution 3

3.4. User responsibility 3

5. Introduction 6

5.1. Welcome 6

5.2. D Series: Two versions available 6

5.3. Feature summary 7

6. Installation 8

6.1. Unpacking 8

6.2. Mounting 9

6.3. Cooling and fan operation 10

6.4. Operating voltage 10

6.5. Grounding 11

7. Product overview 12

7.1. Front panel 12

7.2. Rear panel 13

8.2. Level Adjustments & Mute Points 14

9. Front panel interface 15

9.1. Frame status and control 15

9.2. Channel status and control 15

9.3. Frame select and ID 16

9.4. Additional front panel operations and indications 17

D SERIES Lake Operation Manual rev 3.0.1

4. Table of Contents

10. Rear panel interface 18

11. Operation and performance 19

11.1. Operation precautions 19

11.2. Power output performance 19

11.4. Power Supply 28

11.5. Auto power down 29

11.6. LoadPilot Load Monitoring 30

12. Lake Processing and Lake Controller 32

12.1. Introduction 32

12.2. Modules and Frames 32

12.3. Lake LoadLibrary™ and Fingerprints 33

12.4. Loudspeaker Processor Overview 33

12.6. Frame and System Presets 33

13.1. Network setup 34

13.3. System setup 36

13.4. Additional Software Reference Material 39

14. Appendix 40

14.1. Faults and warnings 40

14.2. Current draw and thermal dissipation 42

14.3. Maintenance 48

16. Warranty and support 53

16.1. General 53

16.2. Technical assistance and service 53

D SERIES Lake Operation Manual rev 3.0.1

5. Introduction

5.1. Welcome

Thank you for choosing the Lab.gruppen D Series for your sound reinforcement needs. We are condent that you will be pleased with the performance, unique features, conguration exibility, reliability, and long–term durability

offered by this product.

For fast installation and use of this product, your welcome package includes a printed copy of the D Series

Quick Start Guide (QSG). It provides a brief introduction to the features and functionality of the D Series and it

also contains the information required to safely install the product and place it in service. Please read through

the QSG thoroughly to become acquainted with the basic conguration and control options available. It is

recommended that you also review all other product documentation to ensure familiarity with the various

conguration and control options.

Thank you again for placing your condence in Lab.gruppen products.

5.2. D Series: Two versions available

D Series is an advanced, high–power installation amplier platform designed for demanding applications, primarily in performance venues. For the utmost exibility in processing and networking, the D Series is available in two

versions: the Lake version, with a full slate of Lake processing algorithms and Dante networking; and the Tesira by

Biamp version for full integration in a Tesira system and with Ethernet AVB audio transport. D-series Tesira versions

are available in three output power levels, whereas the D-series lake versions are available in six output models. The six Lake power output models come in two form factors. Three high power models in a standard form factor and three lower powered models in a slimline, single rack unit, form factor.

This operation manual is for use with Lake processing versions only, and applies to models at all six output power levels. The models D 200:4L, D 120:4L, D 80:4L, D 40:4L, D 20:4L and D 10:4L will further on only

be referred to as D200, D120, D80, D40, D20 and D10.

D SERIES Lake Operation Manual rev 3.0.1

5. Introduction

5.3. Feature summary

5.3.1. Features common to both D Series variants

• Four channels with six levels of total available frame power output: 20000 W, 12000 W, 8000 W, 4000 W,

2000 W and 1000 W

• Rational Power Management (RPM)

• True exibility in allocating power output across each channel to match requirements, for more efcient

use of amplier inventory

• Any channel is capable of being signicantly scaled up to match power requirements.

• Dedicated on–board surveillance and load monitoring for voice alarm applications

• Advanced universal power supply

• Regulated Switch–Mode Power Supply (R.SMPS™) maintains stability through uctuations in mains voltage

• Best–in–class Power Factor Correction (PFC)

• Current Draw Modeling (CDM™) reduces peak mains draw

• Breaker Emulation Limiter (BEL™) responds to available mains distribution

• Under–Voltage Limiting (UVL™) allows continued operation through mains voltage drop

• CAFÉ (Conguring Ampliers For the Environment) software incorporates ESP™ (Equipment Specication

Predictor) to assist in design, equipment specication and commissioning

• Features controlled by on–board DSP

• Amplier gain is set in the digital domain and controlled via the Lake Controller software.

• ISVPL™ – The Inter–Sample Voltage Peak Limiter (ISVPL) tailors each channel’s power output to the

characteristics of the connected load

• Load Verication & Performance Monitoring – A comprehensive set of proprietary DSP–based tools

enables load verication and real–time performance monitoring

NOTE: The D200, D120 and D80 models have the possibility to bridge two power outputs to further increase scalability. This feature is not available on the D40, D20 and D10 models.

5.3.2. Features unique to Lake variant

• Lake’s exclusive classic/linear–phase/FIR speaker processing platform with four throughputs

• Group control with Raised Cosine™ MESA EQ™ asymmetric lters

• LimiterMax™ peak and RMS limiters

• Extensive loudspeaker preset database (Lake LoadLibrary™)

• Comprehensive clocking management system with low latency sample rate conversion

• Full support for Dante Controller

• Multiple and redundant inputs with programmable failover

• Four “Lake Class” analog inputs with Iso–Float™ ground isolation

• Two AES3 digital inputs (4 audio channels)

• Eight dual–redundant Dante network audio inputs

• Comprehensive 3rd party protocol for integration potential with third party matrix systems via purpose–

developed middleware

D SERIES Lake Operation Manual rev 3.0.1

6. Installation

5.3.3. Other Documentation

This Operation Manual is intended to serve as a guide and reference to the operation and maintenance of the D Series Lake hardware platform. Comprehensive information is given regarding installation, connection and operation of the front panel interface.

D Series Lake ampliers are designed for conguration and operation using the Lake Controller and CAFÉ software programs. This manual includes a brief tutorial on how to put an amplier into service using Lake Controller, and it

also includes an overview of some features that are implemented via CAFÉ.

For complete information on DSP conguration and operation using Lake Controller, please refer to the Lake

Controller Manual, available online at www.labgruppen.com/support.

For detailed information on conguration and operation of the power platform using CAFÉ, please refer to the guide

embedded in the software or to the CAFÉ Coach video series available on the Lab.gruppen YouTube channel or via a link on the Lab.gruppen web site.

6. Installation

6.1. Unpacking

Carefully open the shipping carton and check for any damage to the device or the supplied accessories. Every Lab.gruppen product is tested and inspected before leaving the factory and should arrive in perfect condition. If any damage is discovered, please notify the shipping company immediately. Only the consignee may initiate a claim with the carrier or their insurers for damage incurred during shipping. Save the carton and packing materials for the carrier’s inspection.

6.1.1. Included in the box

In addition to the D Series device, the shipping carton includes the following items:

• D Series Lake Quick Start Guide

• AC mains lead (power cable) with Neutrik powerCON connector (D200, D120 and D80) or IEC connector

(D40, D20 and D10) and AC socket plug according to ordering selection

• Rear brackets for additional rear rack support (pair) along with associated mounting hardware

• Connector kit including all needed connectors

• Front grille and dust lter assembly

NOTE: Depending on the model, the connector kit might include more connectors than applicable for the product you have. Select those connectors required for your unit and application.

Please keep the original carton and associated packaging to facilitate shipping of the device should the need arise.

D SERIES Lake Operation Manual rev 3.0.1

6. Installation

6.2. Mounting

D Series is made for mounting in 19 inch racks. Four screw holes are available for attachment of the amplier to

the racks front rack rail. This device has no top or bottom vents; therefore, units may be stacked directly on top of

one another. Sufcient space should be available at the rear to accommodate connectors and cables. In addition,

allowance must be made for cable or loom bends within a rack.

6.2.1. Rear Mounting

Two rear support brackets, along with associated mounting hardware, are included with the D Series device. It is strongly recommended that these are used wherever possible. Fit the brackets to the vertical rails at the rear of the

rack. The following diagrams show the tting options for xed and removable installation. The support brackets are reversible and may be tted to point either to the front or rear of the rack; the proper orientation depends on the

rack depth and position of the rear rack rails.

Figure 6.1: Rear support bracket with mounting hardware

Figure 6.2: Rear support bracket mounted for Figure 6.3: Rear support bracket mounted for

xed installation and bracket removable installation and bracket

pointing forward pointing towards rear

D SERIES Lake Operation Manual rev 3.0.1

6. Installation

6.2.2. Mounting front grille

The front grille is shipped on top of the amplier inside the box to protect it during shipping. The front grille adheres to the amplier with magnets. Hold the front grille with your ngers in each of the side cutouts and slide it gently into

place straight from the front.

6.3. Cooling and fan operation

D Series devices use a forced–air cooling system with airow from front to rear, allowing high continuous power levels without thermal problems. To facilitate maximum air ow, ensure that no objects such as rack doors or lids are placed at the front or rear of the rack. Never attempt to reverse the airow. Make sure an adequate air supply is provided in front of the D Series device, and that the rear of the device has sufcient space to allow

air to escape. It is recommended to keep the ambient temperature around the device as cool as possible. An

increased temperature can have a signicant negative impact on the expected lifetime on the components

inside the D Series device.

NOTE: Always ensure the dust lters behind the detachable front panel are clean to ensure maximum possible airow. The exterior front panel is held in place by powerful magnets but is easy to detach by using your ngers in the openings at the each side. To clean the foam lter, detach it from the exterior

front and gently use a vacuum cleaner or gently shake it. Remount with the opposite procedure. Never

operate the amplier without the dust lter installed.

NOTE: Fit solid blanks (not ventilation blanks) to unused rack spaces to ensure effective air circulation. Leaving

gaps in between items of equipment degrades the effectiveness of forced–air cooling.

If installing one or more D Series devices in a rack with other fan–cooled equipment, conrm that all other equipment also uses front–to–rear airow for cooling. If this precaution is not observed, there is a risk of overheating, as units with the reverse airow will be drawing in air which has already been heated by the

D Series devices.

The D Series device is equipped with a sophisticated temperature sensing system which protects it from any overheating which may occur as a result of inadequate ventilation.

6.4. Operating voltage

D Series has a universal power supply and its mains nominal and operating voltages are specied in the Technical Specications. D Series can be ordered with a variety of mains plugs. If the mains plug (AC plug) tted to the mains cable (AC cord) is not appropriate for your country it can be removed and a locally–sourced one tted instead. If you are not 100% condent of your competence to replace the mains plug (AC plug), the task should be carried out by qualied personnel.

NOTE: In–rush current is controlled and limited during the soft–start sequence. This enables multiple D Series Devices on the same AC mains circuit to be turned on simultaneously.

D SERIES Lake Operation Manual rev 3.0.1

6. Installation

3 phase Y 120V

6.4.1. Low voltage country considerations

Although the D Series has a wide range of operating mains voltage, some considerations can be applicable for

low voltage regions. D Series performs well throughout the specied nominal voltage range but has slightly better efciency at higher voltages. For regions with nominal voltage below 140 V, one could consider connecting the amplier in a three phase delta or two phase split-phase conguration, especially applicable for the bigger models, (D200, D120 and D80).

NOTE: Following connections applicable only for resulting voltage inside the ampliers nominal voltage

range.

Connecting the amplier in three phase delta conguration

In three–phase conguration where the phases are 120 degrees apart, one can connect three balanced loads in a delta conguration. The connection is made between the phases instead of between the neutral and a phase.

208V

120V

Amp

L1 L2

N N

Amp

120V

208V

Amp

208V

3 phase delta 208V

Figure 6:4: Three phase delta conguration

Connecting the amplier in a split phase conguration

In two phase split–phase conguration there are two phases separated by 180 degrees. Connecting between the

phases gives double the line voltage.

100V 100V 200V

Amp

Split phase 100V

Amp

L2N

L1 L2

Amp

Split phase 200V

Figure 6.5: Two phase split–phase conguration

6.5. Grounding

D Series must be grounded (earthed) with the safety ground pin to the mains distribution system. NEVER disconnect the earth (ground) pin on the mains cable (AC power cord). Use correctly-shielded balanced audio

input connections to minimize hum and interference.

D SERIES Lake Operation Manual rev 3.0.1

7. Product overview

7.1. Front panel

The front panel consists of an outer front with air intake and a centered user interface. The user interface has LEDs for monitoring and six recessed touch buttons for control.

Rack ears for 19 inch rack mount

Exterior front grille (also air intake and dust lter holder)

Touch and LED panel – See section 9.1 for further information.

D SERIES Lake Operation Manual rev 3.0.1

7.2. Rear panel

7. Product overview

1 2

3 4

marked hot (+) and cold (-) terminal

Analog Inputs - Analog inputs are available on terminal block connectors with clearly marked hot (+), cold (-)

and ground terminals

AES3 Inputs - AES3 inputs are available on terminal block connectors with clearly marked hot (+), cold (-)

and ground terminals

RJ-45 Ethernet connectors for control and Dante digital audio network

Mains connector - Detachable Neutrik powerCON (for D 200, D 120 and D 80) or locking IEC connector

D SERIES Lake Operation Manual rev 3.0.1

7. Product overview

8. Signal ﬂow, routing and mute points

8.1. Signal ﬂow

device provides seven points in the signal chain where the signal level can be adjusted, muted or disconnected.

Module Data stored in Module FIles (Speaker Presets)

Frame Data stored in System Files and Frame Presets

Dante Receivers 1-8

AES/Analog

pass through

to Dante

INPUTS

AES 1-4

Analog 1-4

OUTPUTS

Dante 1-8

(no mutes)

Input

Routers

1-4

WITH

INPUT

MUTES

Input

Mixer A

Input

Mixer B

Input

Mixer C

Input

Mixer D

Lake Contour

Module A

Lake Contour

Module B

Lake Contour

Module C*

Lake Contour

Module D*

Attenuator

Phase Rev

Custom RPM

Attenuator

Phase Rev

Custom RPM

Attenuator

Output Routing

Phase Rev

Custom RPM

Attenuator

Phase Rev

Custom RPM

Mute

ISVPL

Auto RPM

ISVPL

Auto RPM

ISVPL

Auto RPM

ISVPL

Auto RPM

Amp Gain LoadSmart LoadPilot AMP

1 2 43 5

Figure 8.1: D Series Lake Signal Flow Diagram

The input section (inputs, input router and input mixer) allows for mixing capabilities as well as redundant and

prioritized inputs with automatic switch-over in case of signal failure

Up to four Lake Processing modules provide user EQ and loudspeaker processing, including LimiterMax limiting

The Output router allows free routing between module outputs and power output channels

Each power output channel provides individual channel processing, including ISVPL limiter, RPM and

load monitoring

8.2. Level Adjustments & Mute Points

the signal:

1 Input Router Stage Input selection and MUTE 2 Input Mixer Stage Router on /off connection to mixer and gain settings 3 Module Input Stage Mute and gain settings 4 Module Output Stage Mute and gain settings 5 Output Router Stage Output on /off routing connections 6 Attenuation Stage Power output channel mute and attenuation settings 7 Amp Gain Stage

NOTE: If the required audio signal is not passing correctly, verify the connection, mute and gain settings at all seven stages.

D SERIES Lake Operation Manual rev 3.0.1

9. Front panel interface

9.1. Frame status and control

1 2 5 6

9. Front panel interface

NOTE: General status indication shown in Table 9.1. For detailed information on warning and fault indication, please refer to the Faults and Warnings table in Section 14.1.

FRAME LED – Provides status indication for a number functions affecting the amplier frame

TEMP LED – Provides status indication for internal temperatures sensed at multiple points, including power

supply, DSP and output channels

PSU LED – Provides status indication on functionality of Power Supply Unit and mains supply, including under–

and over–voltage, power supply faults, and unstable mains supply

POWER LED and TOUCH BUTTON – Provides power state indication and control. Press and hold button to

toggle the amplier between ON and STANDBY state. LED indication given in Table 9.1.

9.2. Channel status and control

LOAD LED – Provides load related status indication for monitoring functionality of LoadSmart and LoadPilot.

Warnings and faults indicate problems or anomalies detected in the connected loudspeakers and/or cabling

AMP LED – Provides amplier related status indication, including faults and warnings related to temperature,

over–current, clipping and very high frequency

SIGNAL LED – Provides signal related status indication, including no signal and input signal clipping

MUTE LED and TOUCH BUTTON – Provides mute status indication and control. The LED is indicating

both Lake mutes and power channel mute. A single touch on the mute button toggles the power channel mute between mute and unmuted states

SELECT LED and TOUCH BUTTON – for selection and indication control between computer software and unit

D SERIES Lake Operation Manual rev 3.0.1

9. Front panel interface

OFF Green Amber Red

Frame

N/A Frame OK Frame warning Frame fault

Temp

N/A Temp OK Temp warning Temp fault

PSU

N/A PSU O K

Power supply/ Mains warning

Power supply/

Mains fault

Power

No mains power

Fixed:ON

Blinking: Turning ON

Button pressed.

Hold for transition

Fixed: STANDBY

Blinking: Turning to

STANDBY

Load

No LoadPilot active

LoadPilot active

and LoadOK

Load warning Load fault

Amp

N/A Power channel OK Power channel warning Power channel fault

Signal

Output below signal

present threshold (– 60 dB)

Output above signal

present threshold (–60 dB) input clip (–2 dB) or limit/ fault active

Mute

Inactive channel in

bridge operation

Unmuted

Lake module is muting the signal chain at either input

router, module input or

module output

Power channel muted

Select

Frame not selected Frame selected Waiting for more touches N/A

Input signal approaching Input signal clip

Table 9.1: LED/category chart

9.3. Frame select and ID

SELECT LED and TOUCH BUTTON – Selects mode and indicates control between computer software and

unit. A single touch on the button will select the unit in supported computer software views. Multiple consecutive touches will select the corresponding Lake module (one touch for module A, 2 for module B etc.). In the other direction, when selecting the unit in a supported computer software view, the LED will indicate the unit is selected with steady green illumination.

NOTE: The touch buttons use capacitive touch technology and might be sensitive to large temperature and humidity variations.

D SERIES Lake Operation Manual rev 3.0.1

9. Front panel interface

9.4. Additional front panel operations and indications

9.4.1. Frame reset

A factory reset and soft reset can be performed from the front panel. A factory reset will restore all settings to original defaults, including network settings, frame presets and current settings. A soft reset reverts only the current settings to default. Network settings and frame presets are not changed with a soft reset.

6. Place the frame in standby mode.

7. Press and hold Select and channel 3 mute button. Then press the power button.

8. User interface will illuminate available options. Choose from the options below a. Press channel 1 mute button (red LED) to initiate the factory reset sequence. b. Press channel 2 mute button (amber LED) to initiate the soft reset sequence. c. To cancel, press channel 4 mute button (green LED).

9. Wait state indication is present while either reset is performed.

10. To complete the factory reset process, cycle the mains power by completely removing the power plug and reinserting it.

9.4.2. Wait indication

Wait indication is displayed when the frame is performing an operation. All LEDs except power are unlit and a circling amber light is displayed on channels 1 and 2.

9.4.3. Power cycle required indication

After an operation that requires a subsequent power cycle to complete, the power LED blinks alternately red and green. A Power cycle requires that the mains is completely removed from the device and not connected again

until the device has powered off.

9.4.4. Front panel lock

The front panel can be disabled from the Lake Controller. When the front panel is disabled, LEDs 4, 8 and 9 (all buttons on the lowest row) flash in amber when hitting any touch button.

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10. Rear panel interface

1 2

3 4

For electrical specications on inputs and outputs, please refer to Technical Specications in Section 15.

Amplier Outputs – The amplier outputs utilize mating Phoenix–type connectors. Connect loudspeaker

cables to the mating plug–in connectors observing polarity (including bridge mode option for D200, D120

and D80) as marked on the rear panel

Analog Inputs – Analog inputs are available on terminal block connectors with clearly marked hot (+), cold (–)

and ground terminals. The inputs are electronically balanced and feature Lake Iso–Float circuitry

AES3 Inputs – AES3 inputs are available on terminal block connectors with clearly marked hot (+), cold (–) and

ground terminals

RJ–45 Ethernet connectors for control and Dante digital audio network. Neutrik etherCON connectors

accept either mating etherCON connector or a standard RJ–45 connector.

Primary Network Connector – The primary connection provides integration into an Ethernet control network which may include other Lake Processors and the Lake Controller software. Network connection permits full control of all functions along with real–time metering from a remote position.

This device supports the Dante audio networking protocol, which allows transmission of multichannel, high–

denition digital audio over the same Ethernet connection.

Use the primary connector when using a star network topology, consisting of individual Cat–5e connections between the devices and an Ethernet switch. Alternatively this connection can be used to daisy chain directly to another Lake Processor. The daisy chain topology should not be used with Dante.

Additional information is also available in the Lake Network Conguration Guide.

NOTE: The Ethernet ports operate at the Ethernet data rate of up to 1 Gbps and allow straight or

crossed network cables. LEDs above each port indicate network activity (ACT) and Gigabit network connections (Gbps). If Gbps LED is unlit, speed is 100 Mbps.

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11. Operation and performance

Secondary Connector – The secondary network connector can be used to create a Dante dual–network topology by connecting all secondary network connectors to a separate Ethernet switch, ensuring full redundancy in the event of a network component failure. Alternatively, the secondary network connector can be used to daisy–chain multiple Lake devices (LM, PLM, PLM+ or D Series), if Dual Redundancy is Disabled from

the Lake Controller. When the device is in Dual Redundancy , it is possible to connect a Lake Controller to the Secondary Connector as long as the IP address on the computer is on the 172.31.x.x subnet.

ed via Lake Controller. See the Lake Controller Operation Manual for further details.

NOTE: When connecting multiple devices to an Ethernet network, care must be taken NOT to create a closed loop which causes network malfunction.

Mains connector – Detachable Neutrik powerCON (for D 200/120/80) or locking IEC connector (D 40/20/10).

For more information, please refer to Section 6.4.

11. Operation and performance

11.1. Operation precautions

Make sure that the Standby button on the unit’s front panel is either unlit (OFF), or red (STANDBY), before making any input or output connections. Ensure the AC voltage is within the range printed on the label adjacent to the AC mains connector. Ensure no input signal is present when powering on the unit to reduce the risk of any inadvertent bursts of high level audio.

11.2. Power output performance

The standard form factor D Series units (D200, D120 and D80) uses Lab.gruppen’s patented Class TD

purity of Class A/B designs. The slimline D Series units (D40, D20 and D10) uses a newly developed Class D:

perfectly under all load conditions and the output maintains it with very low nominal impedances. Reliability is very high, and there is no interference with nearby RF equipment.

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11. Operation and performance

Load Impedance (ohms)

2 ohms

(per channel)

2.67 ohms

(per channel)

4 ohms

(per channel)

8 ohms

(per channel)

16 ohms

(per channel)

Hi-Z 70 V

(per channel)

Hi-Z 100 V

(per channel)

D 200:4L 4400 W 5000 W 4400 W 23 00 W 1150 W 3300 W 4700 W

D 120:4L 3000 W 3000 W 3000 W 1900 W 950 W 3000 W 3000 W

D 80:4L 2000 W 2000 W 2000 W 1500 W 750 W 2000 W 2000 W

D 40:4L 800 W 1000 W 1000 W 1000 W 700 W 1000 W 1000 W

D 20:4L 500 W 500 W 500 W 500 W 425 W 500 W 250 W

D 10:4L 250 W 250 W 250 W 250 W 250 W 250 W 175 W

11.2.1. Symmetrical power

D Series models can deliver power as shown in Table 11.1 when all channels are driven equally.

Table 11.1: Symmetrical Load Power Ratings

11.2.2. Rational Power Management™

Rational Power Management™ (RPM) is a unique Lab.gruppen feature that allows for exible allocation of power

across channels of a D Series unit. Power that is not used by one output channel is free for use by another output

channel with greater demands. Unique to this series is that all models in the range have amplier channels that can produce higher outputs than the average 25% of the total power, see the Technical Specications for the maximum single channel power capacity. RPM automatically allocates power up to the total limits of the specic amplier

model and helps minimize unused power in the installation.

RMS voltage; and also the speaker’s AES power rating. By specifying the nominal impedance of the load, the RPM algorithms have all input data required to calculate resulting RPM settings. If the desired RPM settings results in a total power output higher

of delivering the

is performed with the ISVPL limiter algorithm. As default the R

the channels at a voltage (default voltage limitation) given in

in two modes.

er; peak and Via the CAFÉ Software, desired

reduction in dB. Once applied, the RPM functionality will ensure that all channels are capable

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2000 W

11. Operation and performance

LOW

Figure 11.2: Amp channels power adjusted to match the loudspeaker requirements on a D 80:4

Auto RPM: The frame will automatically allocate power per output channel according to the ISVPL settings in the

speaker preset (per module output) in Lake Controller. Auto RPM assumes a nominal impedance of the Load and

applies an approximate power allocation. Auto RPM is default for D Series Lake.

MIDSUB

HIGH

Custom RPM: The CAFÉ software allows users to create an advanced custom power allocation scheme. Switching to Custom mode disables the Automatic mode. Additional information is available in documentation supplied with the CAFÉ software download.

Custom RPM using CAFÈ with ESP: CAFÉ (Conguring Ampliers For the Environment) is a dedicated software application for Windows and OSX that provides tools for system planning, specication and commissioning. CAFÉ incorporates the Equipment Specication Predictor (ESP), a software module that examines SPL and speaker requirements for a project and generates requirements for output power on an amplier and system level. ESP will generate a custom RPM conguration optimizing the power allocation within the frame. For more information on

CAFÉ and ESP, please consult the documentation supplied with the CAFÉ software download.

11.3. Ampliﬁer and Load Protection Systems

The D Series is equipped with a comprehensive set of protection circuits. If operating conditions become

sufciently extreme that any of these circuits become active, indication is provided by amber or red LEDs on the front panel, and by text notications in the Lake Controller and CAFÉ software. Refer to Section 14.1 for more

information on warnings and faults.

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11. Operation and performance

11.3.1. Inter–Sample Voltage Peak Limiter (ISVPL)

The ISVPL is a high quality voltage limiter that can deliver seamless limitation to any desired level. It ensures that the voltage at the output terminals never exceeds the dened threshold. It operates on these principles:

• The signal is delayed slightly to allow the ISVPL to look–ahead and reduce the gain before voltage in excess

of the threshold can appear at the output. This results in zero voltage overshoot at the output with a rounded limitation up to the threshold.

• The amplitude of the output signal between digital samples is predicted which permits the ISVPL to respond to

analog peaks that may occur at the digital to analog converter.

• The release time of gain reduction is adaptive depending on the dynamics of the signal. It is possible to select

different ISVPL proles for limiting optimization for a specic frequency band and personal preference. The proles are divided into two categories, with one category optimized for low distortion and the other focusing on producing high sound pressure level (SPL). Within each category there are proles optimized for the different

frequency bands.

11.3.1.1. Low Distortion Proﬁles

• Universal – The universal prole is a soft limiter that can be used for all frequencies and is conservative in its

action upon VCL and CPL.

• Sub/LF – The Sub/LF prole is tuned for frequency bands below 600 Hz. It has longer attack and release times

and is less conservative when it comes to acting upon VCL and CPL.

11.3.1.2. High SPL Proﬁles

High SPL proles do not use the adaptive release time feature. High SPL proles optimized for high frequencies use less of the look–ahead delay peak–rounding feature; this feature is used most in the Sub prole and least the HF prole.

• Sub – The Sub prole is optimized for frequencies between 20 – 200 Hz

• LF – The LF prole is optimized for frequencies between 20 – 1200 Hz

• MF – The MF prole is optimized for frequencies between 300 – 6000 Hz

• HF – The HF prole is optimized for frequencies above 1 kHz

11.3.1.3. ISVPL Voltage Settings

The ISVPL threshold may be set at any level between 17.8 V and 600 V in the Lake Controller software. For further

details, please refer to the Lake Controller User Manual.

Lake–enabled amplier devices (D Series Lake, PLM+, PLM) that have a smaller peak output voltage capability still allow ISVPL speaker threshold settings up to 600 V. When a threshold is set above the current maximum capability of a power output channel, the actual ISVPL will automatically be set to the maximum ISVPL for that channel. Therefore, the ISVPL threshold can be set at the Module for the speaker’s maximum capability, and the Module le remains cross–compatible with all Lake–enabled amplier devices.

Table 11.3 shows the theoretical maximum output power based on only the load impedance and

the ISVPL setting. See the Technical Specications, or use CAFÉ, to nd the available power for a specic amplier and load.

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Max. Sinewave Burst Power (Watts)

LLoad Impedance (ohms)

2 2.67 4 8 16

LISVPL SETTING (V peak)

194 4489 5993 470 5 2352 1176

193 4489 5993 4656 2328 116 4

181 4489 5993 4095 2048 10 24

167 4489 5223 3486 1743 872

153 4489 4384 2926 1463 732

121 3660 2 742 1830 915 458

101 2550 1910 12 75 638 319

83 172 2 12 90 861 431 215

70 122 5 918 613 306 153

56 784 587 392 196 98

47 552 414 276 13 8 69

38 361 270 181 90 45

17.8 79 59 40 20 10

Table 11.3: ISVPL–to–output examples

11. Operation and performance

11.3.2. Current Peak Limiter (CPL)

The output Current Peak Limiter (CPL) ensures that the power output section will not be damaged by forcing it to

deliver current levels at the outputs that exceed the maximum current ratings of the output transistors. The CPL

keeps the output transistors within their Safe Operating Area (SOA). The CPL is non–adjustable.

This condition indicates an attempt to draw excessive current at the output. The output is attenuated until the

output current falls below the maximum current rating. Limiting is performed by the ISVPL limiter in conjunction with the selected ISVPL prole.

CPL activity is shown by amber or red indication on Amp LED of the affected output channel and a corresponding text description in Lake Controller and CAFÉ software programs. Refer to Section 14.1 for more information on warnings and faults.

NOTE: If excessive current is indicated, check the output cables and examine the loudspeaker. If

impedance appears normal, you may rectify the condition by altering the ISVPL settings or lowering

input levels. CPL indication can be triggered by excessively low load impedance, possibly the result of too many loudspeaker cabinets connected in parallel.

11.3.3. Power Average Limiter (PAL)

The Power Average Limiter Active warning (PAL Active) will be displayed when the power supply is operating at the

maximum average input power allowed for the PSU design. When this warning is displayed, gain limiting is being

applied to the signal by a lowering of the ISVPL threshold.

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11. Operation and performance

PAL activity is shown by PSU amber LED indication and a corresponding text description in Lake Controller and CAFÉ software programs. Refer to Section 14.1 for more information on warnings and faults.

11.3.4. Breaker Emulation Limiter (BEL™)

The BEL models the temperature in the external breaker and limits the mains current to prevent the breaker

be selected for Frame Replace support). The desired nominal current value can be set from 1 to 32 Arms. The resulting models the

•

allows current above the threshold to pass for a short time, leading to an increased modeled temperature. For the limiter to disengage, the current must reduce below the threshold to enable the breaker to cool down.

•

momentarily allows current above the threshold for a longer time, leading to an increased modeled temperature. ed current for the breaker to cool down.

is set above, or bellow, the model’s capabilities, the actual current is automatically adjusted into

predict the current consumption, with the exact speaker requirements, and propose a safeguarding

11.3.5. Under Voltage Limiter (UVL™)

The larger D Series devices (not D 20:4L and D 10:4L) are equipped with an under voltage limiter. With multiple, powerful devices on a mains distribution line, heavy current loads risk the reduction of voltage below that required for devices to function. The UVL reduces the mains current draw when voltage drops below 80 V. The amount of reduction applied increases as mains voltage drops towards 65 V; at 65 V the power supply is

automatically restarts.

11.3.6. Current Average Limiter (CAL™)

The Current Average Limiter (CAL) monitors the RMS current drawn from each power output channel to ensure that the power output stages are not overloaded. When activated, it regulates the current to a safe level to protect the channel. The CAL should not be activated in normal usage. If activated, this is shown by amber or red indication on the Amp LE and CAFÉ software programs. Refer to Section 14.1 for more information on warnings and faults

D of the affected output channel and a corresponding text description in Lake Controller

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11. Operation and performance

NOTE: For Slimeline models, to optimize the CAL’s behavior when playing into a low impedance load, manually set the desired ISVPL to reflect the real peak voltage output to allow for a higher average current.

11.3.7. Voltage Clip Limiter (VCL)

If current draw from the unit’s power supply is too high, the PSU’s regulation capability may be exceeded and the internal voltage rails may drop and cause clipping. If this occurs, the VCL acts rapidly to prevent clipping on the subsequent peaks. Limiting is performed by the ISVPL limite Indication of this condition is shown on the output LEDs. Refer to Section 14.1 for more information on warnings and faults.

11.3.8. Temperature Protection

D Series devices are equipped with a sophisticated temperature sensing system that provides protection from overheating which may occur as a result of inadequate ventilation or excessive power output. Thermal measurements are made at several points within each power output channel along with measurements in

operate continuously, with the highest possible output, and prevent shutting down. If temperature in any area reaches a critical level, a warning is displayed. The warning is issued at approximately 80% of the maximum allowable temperature. If the temperature continues to increase, a limiter (ATL or PTL) is engaged that limits signal peaks to reduce further heat accumulation. Limiting is accomplished by gradual reduction of the ISVPL thresholds. In the extreme case where the limiter cannot reduce heat accumulation and temperature reaches a dangerous level, a fault is displayed and audio is muted.

Each power output channel, the power supply, and DSP area have separate indications. For all temperature faults, temperature monitoring will continue at 0.5 second intervals, with the output remaining muted. When the area has cooled below the dangerous threshold, the fault condition is cleared and audio is restored.

11.3.8.1. Power Output Channels

A power output channel temperature warning or fault is indicated by the Amp LED for that channel and the Temp LED for the frame.

• A warning is indicated by a static amber LED

•

• A fault is indicated with a static red LED

An event report is sent to the Lake Controller software for both the warning and the fault. If a temperature fault condition arises on a power channel, the output of that channel will be muted.

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11. Operation and performance

If the amplier output channel temperature keeps rising after reaching the temperature warning threshold, the Amp channel Temperature Limiter (ATL) will engage at approximately 95% of the maximum allowable temperature.

When ATL is engaged, it will try to reduce the power output to avoid that the amp channel goes into temp fault, i.e. muting. Limiting is removed when temperature falls below the ATL threshold.

11.3.8.2. Power Supply / DSP

A power supply (PSU) or DSP temperature warning or fault is indicated by the Temp LED.

• A warning is indicated by static amber LEDs

• Power supply Temperature Limit (PTL) is indicated by an amber LED

• A fault is indicated with static red LEDs

If the power supply temperature keeps rising after reaching the temperature warning threshold, the Power supply

Temperature Limiter (PTL) will engage at approximately 95% of the maximum allowable temperature. When PTL is engaged, it will try to reduce the total amplier output power to avoid that the power supply goes into temp fault,

i.e. muting of all channels. Limiting is removed when the temperature falls below the PTL threshold.

11.3.9. DC Protection

The DC protection is implemented, individually, on each power output to prevent damage to connected loudspeakers or any D Series components. DC present at the output will cause the unit’s power output module breaker to blow, causing a permanent hardware fault that prevents signal throughput. In this instance the channel’s Amp LED will illuminate red and a service channel fault will be registered in the Lake Controller and CAFÉ status views (D200, D120, D80 only). For the D40, D20 and D10, no audio will be heard from the outputs.

NOTE: A blown breaker in the power output module is not a user serviceable fault condition and the unit should be returned for repair.

11.3.10. VHF Protection

The D Series includes protection circuits that detect Very High Frequency (VHF) content in the input signal. The detection is amplitude–, frequency– and time–dependent. It is initiated from 10 kHz upwards and, if continuous VHF signals are detected above the threshold for more than the attack time, the output for a D200, D120 and

D80 will attenuate the gain until the signal is below the VHF threshold. When this is done, VHF Warning is displayed. If the signal is above the VHF threshold and the maximum of -12 dB of gain reduction is not enough to take the signal below the VHF threshold, the signal will mute after 15 seconds, and retest the signal after 6 seconds. Note that the D40, D20 and D10 will go directly to mute upon VHF detection.

normal operation.

This protection system recognizes only continuous VHF signals at high levels that will not appear in speech or music. Any such content can therefore be considered as a fault condition. VHF protection is essential to avoid damage to HF drivers. VHF protection is dependent on a combination of output power level and frequency.

Figure 11.4 shows a decreasing power threshold, from approximately 10 kHz upwards, which illustrates increasing sensitivity of the protection system with frequency. When continuous output power above the threshold line is

detected, VHF protection becomes active.

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11. Operation and performance

Trigger voltage

100

Voltage [Vrms]

0 5

Fig 11.4: VHF Protection Frequency Sensitivity

The attack time of the VHF protection circuitry also changes with frequency, becoming shorter at higher

frequencies. This is shown in Figure 11.5.

10 15 20 25 30

Frequency [kHz]

Full output voltage

1400

1200

1000

800

600

Time [ms]

400

200

0 5

10 15 20 25 30

Frequency [kHz]

Fig 11.5: VHF Protection Attack Time Variations

The VHF pr

solely to detect

continuous VHF content. HF content of normal music or speech signals at peak levels will be passed in full. Operation of the VHF protection circuits is indicated by the channel’s AMP LED that will illuminate yellow and display VHF Warning when the max of -12 dB of gain reduction is applied (only applicable for D200, D120 and D80) and light red for a VHF FAULT. Both of these will be registered in the Lake Controller and CAFÉ status views.

11.3.11. Short Circuit Protection

A low impedance or short circuit at the power output terminals is detected when the output current is high (Current

Peak Limiter is active) and, simultaneously, the peak output voltage is below a predetermined threshold. When this

situation occurs, the output stage is muted to protect it from damage.

Operation of the short circuit protection system is indicated by Amp channel LED showing steady red and a corresponding text description will register in Lake Controller and CAFÉ software programs. Refer to Section 14.1 for more information on warnings and faults.

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11. Operation and performance

The presence of a short circuit (or low impedance) is re–tested every six seconds, and the output remains muted until the fault clears.

11.3.12. Power supply protection

The power supply is very advanced and has several internal control and monitoring functions. Should any of these fail, the power supply will shut down to prevent damage or limit severity of the failure. If the power supply shuts down audio will be muted. Power supply faults, or power supply needs service faults, are indicated by a red LED and associated error messages registered in Lake Controller and CAFÉ software programs.

In the extreme event of simultaneous low mains voltage supply and high power demand, the amount of incoming

condition is a power protect fault, indicated with a red LED and associated error messages registered in Lake Controller and CAFÉ software programs.

11.3.12.1. Mains anomaly protection

supply will then be forced to shut down. This

mains service.

Over–voltage – If the power supply detects mains voltage above 400 V peak or 270 V RMS, it will enter protective

associated error messages will register in Lake Controller and CAFÉ software programs.

Under–voltage – If the power supply detects mains voltage of less than 65 V (not available on D10 and D20), it will enter protective shut down mode. The amplifier will auto–restart if the condition clears. Will be indicated by a red LED and associated error messages will register in Lake Controller and CAFÉ software programs.

Mains instability – If the power supply detects protracted instability in the AC mains, it will enter protective shut down mode (D 200:4L, D 120:4L and D 80:4L only). The ampli Will be indicated by a red LED and associated error messages will register in Lake Controller and CAFÉ software programs.

Mains glitch – If the power supply detects a momentary mains glitch (missing cycles) at the AC inlet, a warning indication will be reported with a yellow LED and associated error messages will register in Lake Controller and CAFÉ software programs (D 200:4L, D 120:4L and D 80:4L only). The powers supply and product continue operation throughout a mains glitch.

11.4. Power Supply

The R.SMPS (Regulated Switch Mode Power Supply) is designed to keep supply voltage rails at optimum levels. Thus the R.SMPS can deliver full rail voltage to the output sta consistent transient response and a clean LF response.

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11. Operation and performance

D Series features a universal power supply with power factor correction (PFC). The device can accept any mains voltage, from 65 V to 265 V, allowing it to function worldwide in many different congurations. The PFC reduces

current peaks on the lines and reduces the requirements placed on the mains distribution system. D Series units offer an unparalleled power factor extremely close to one.

11.4.1. Low Inrush Current

High power ampliers with inadequate inrush current limiting can draw considerable current from the mains at

turn–on, sometimes tripping a fast–acting mains breaker. The D Series, however, has very low inrush current to prevent tripping of breakers. Several units can, under normal conditions, be powered up simultaneously. If you do experience problems powering up multiple units simultaneously, they must either be turned on manually in an ordered manner, or sequenced remotely using the Lake Controller software’s Global Control feature. Alternatively, the capacity of the mains supply should be increased.

NOTE: If insufcient power is available to allow simultaneous power–up, then there is probably insufcient capacity for full power output during operation. It is recommended that additional capacity is

added to the mains power distribution system.

11.4.2. Adaptive rail control

The D Series slimline models have Adaptive rail control available in Performance (default) and Green mode. In Green mode, this feature further increase the slimline models green credentials by lowering the idle

consumption. This is achieved by lowering power supply’s supply voltage, to the

raised, to allow for full power outtake, as soon as the signal returns. This feature is user controlled via the Lake Controller, where it can be turned on or off.

11.5. Auto power down

The D Series models have been equipped with a Auto Power Down function. If Auto Power Down is enabled,

user-defined

audio passing and there is no user interaction via the Lake Controller, CAFÉ or 3rd party controllers.

When the

the frame will turn on again.

NOTE: There is no Auto Power On feature on the return of signal, the device will need to be actively turned on after entering the standby mode via the Auto Power Down feature. This can be done from the network via the Lake Controller or the 3rd party protocol or via the front panel button.

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11. Operation and performance

11.6. LoadPilot Load Monitoring

11.6.1. Introduction

LoadPilot is a feature in D Series ampliers that can continually monitor the integrity of loudspeakers and cables

connected to the outputs to ensure that they are functioning properly and free from major anomalies or faults.

By implementing LoadPilot, systems incorporating D Series ampliers can be certied in compliance with voice

evacuation standards such as EN54–16 and NFPA72.

LoadPilot functions by automatically superimposing low–level pilot tones on the input signal (if any present) to the amplier. One tone is below the range of human hearing (approximately 10–20 Hz) and the other above (24 kHz),

so the activity of LoadPilot is inaudible regardless of whether the system is currently reproducing program content. High–resolution current sensing on the outputs can calculate the impedance of the load at the frequency of the tones. Hence a stable measurement of the impedance of the load can be obtained and potential anomalies or faults can be detected that would indicate impaired loudspeaker function or total inoperability due to failure of the loudspeaker or faults in connected wiring. The superimposition of pilot tones and analysis is interleaved across the

amplier’s output channels with a maximum total cycle time of around 20 seconds.

LoadPilot is implemented and congured in the CAFÉ software. Monitoring status and fault indication are displayed

on the front panel and both in CAFÉ and Lake Controller.

LoadPilot may be congured with the automatic calibration or through a manual advanced mode, depending on

monitoring requirements and characteristics of the connected loudspeaker loads.

11.6.2. Automatic calibration

11.6.2.1. Functional description

Automatic calibration is suitable for the following applications and requirements for error detection:

• If one or two low–impedance loudspeakers are connected; if two in parallel is default, it will warn if one is missing.

• If there are one or two “spurs” with 70V loudspeakers connected; if two in parallel is default, it will warn if one is missing.

• If there is a short circuit in the load.

• If there is an open circuit (all loudspeakers missing).

• For passive 2– and 3–way loudspeakers, if one or two LF drivers are connected and working; if two in parallel

is default, it will warn if one is missing.

• For some passive 2–way designs, if one HF driver is disconnected. (However, with some loudspeakers the HF impedance is dominated by a passive component i.e. crossover lter and the anomaly will not be detected.)

NOTE: LoadPilot is enabled only when the amplier is On. It does not function while the amplier is in

Standby.

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11. Operation and performance

11.6.3. Manual conﬁguration

11.6.3.1. Functional description

Manual conguration can be used in special cases where proper functioning requires setting of custom

measurement frequencies, custom measurement levels, custom warning thresholds, or combinations of the three.

Manual conguration addresses the following issues:

Speakers with non stable impedance – For the LoadPilot feature to function the load itself needs to have a stable impedance at the frequency of the tone. Resonances in the speaker or other non linear phenomenons can

make the impedance at a certain frequency unstable. Stability needs to be veried by examining the impedance response to make sure it is relatively at at the tone frequencies and by verifying LoadPilot readings when playing

signal through the speaker at the most extreme expected level. The frequency of the pilot tones can be changed within certain ranges and a tone can be disabled. If a frequency where the speaker is stable can not be found one tone can be disabled and LoadPilot relies solely on the remaining tone.

High noise levels – To obtain accurate impedance measurements, it is necessary to drive a current sufciently above the noise oor. However, it is important to keep the level low in order to prevent audible artifacts from cone travel. At very high impedances, the drive current may be insufcient. In the automatic mode, level is set around 60 mV which produces usable results for impedance up to 660 ohms.

Inductance in loudspeaker cables – Loudspeaker cable inductance at higher frequencies is very high relative to passive resistance, and the inductance increases linearly with length. Consequently, monitoring at the 24 kHz pilot tone frequency can be problematic with very long cables. The automatic mode will estimate cable impedance for 24 kHz and allow it to be used as long as it is less than 33% of total impedance presented by the load and as long as the total impedance is below about 440 ohms.

DC blocking capacitors in loudspeakers – Some loudspeakers incorporate a capacitor designed to block damaging voltages at very low frequencies. This may inhibit accurate measurements when using the 10 Hz pilot tone. In automatic mode, LoadPilot will disable the 10 Hz tone if total impedance is above about 440 ohms.

Constant voltage loudspeakers – Loudspeakers driven via transformers in 70V/100V solutions are more likely

to exhibit wide variations in measured impedance as music and/or pilot tones are reproduced by the system. Also, most constant voltage systems operate more than two loudspeakers in parallel. Therefore, in addition to manual

conguration of LoadPilot, additional step may be required. These include:

• Insertion of a series capacitor in each loudspeaker to block the 10 Hz LF tone – This will defeat measuring the

loudspeakers with the LF tone, but will allow the LF tone to propagate through the entire cable run.

• Insertion of EOL (end–of–line) resistors – This enables LoadPilot to detect cable faults in a spur of the system.

• Insertion of EOL (end–of–line) inductor – This is not mandatory, but it will avoid the loss of level at mid and high

frequencies due to the EOL resistor.

NOTE: Manual conguration of LoadPilot is implemented in CAFÉ versions 1.1.0. and later. For detailed information on manual conguration of LoadPilot, please refer to the integrated guide in the software

program and to the CAFÉ Coach videos posted on the Lab.gruppen web site and on the Lab.gruppen channel on YouTube.

D SERIES Lake Operation Manual rev 3.0.1

12. Lake Processing and Lake Controller

11.6.4. Indication

The LoadPilot feature constantly monitors the impedances at the two given pilot tone frequencies and compares to the measured thresholds. The following faults and warnings can be triggered.

• Speaker shorted warning – Both tones below lower threshold. Corresponds to a distant short circuit that can either be in the cabling or in the speaker.

• Speaker damaged warning – One of the tones is below or above thresholds. Corresponds to an unexpected impedance deviation of one of the tones, most likely a damage to the speaker.

• Under speaker count warning – Both tones above upper threshold. Corresponds to an impedance increase across the impedance response and most likely a loss of speaker(s) in a parallel speaker connection.

• No load fault – At least one tone above measurable area or signicantly above upper threshold. Most likely

corresponding to loss of the load.

• Short circuit fault – LoadPilot analysis below short circuit threshold.

12. Lake Processing and Lake Controller

12.1. Introduction

D Series Lake integrates seamlessly into the Lake Processing environment, providing all features, functionality and connectivity associated with all Lake Processors. The internal Lake Processing, which includes programmable crossovers, EQ, dynamics and other functions, is fully controllable via Lake Controller software with a version number of v6.3 for D 200:4L, D 120:4L and D 80:4L, v6.5.0 for D 20:4L and D 10:4L and v6.5.1 for D 40:4L. All models are compatible with newer versions of the Lake Controller.

Additional information is available in the Lake Controller Operation Manual and Lake Network Conguration Guide,

both available on www.labgruppen.com. Also, additional documentation is available from the Start Menu after software installation.

Visit http://labgruppen.com to download the latest software, rmware and documentation for your devices.

12.2. Modules and Frames

A Frame represents one physical Lake Processor device (e.g. a D 200:4L). A maximum of four Modules are

contained within each Frame; these are referred to as Module A, B, C and D. The number of Modules shown in a

given Frame is dependent upon the signal processing conguration of that Frame.

ed as a Classic Crossover (Bessel, Butterworth, Linkwitz–Riley), as a Linear Phase

Contour Classic 1 Way (CL1–Way) Output Modules, providing a total of four Module outputs that can be routed to any of the four power outputs, but default is one to one (input 1 -> output 1 etc.). Please refer to the Lake

Controller Operation Manual for further information.

D SERIES Lake Operation Manual rev 3.0.1

12. Lake Processing and Lake Controller

12.3. Lake LoadLibrary™ and Fingerprints

as SpeakerPresets

are available in the Lake LoadLibrary,

Additionally, Lake LoadLibrary loudspeaker types may also include data relating to the electrical characteristics of a

on the device. This data set is termed a Fingerprint. When a sp

12.4. Loudspeaker Processor Overview

The Lake Processing system within D Series Lake devices may be congured with up to four processing Modules

containing a total of up to twelve processing Module outputs that can be routed to any of the four power output

channels. Each set of processing elements is referred to as a Module and can be congured as crossovers, full bandwidth auxiliary outputs, or a combination of the two. The relationship between inputs and outputs is dened

via the Lake Controller.

The Lake Processing system provides two distinct categories of crossovers:

• Innite Impulse Response lters (IIR) such as the classic Bessel, Butterworth or Linkwitz–Riley types; these are available with slopes ranging from 6 dB/octave to 48 dB/octave.

• Finite Impulse Response lters (FIR) providing zero phase shift with steep transition slopes at the crossover frequencies. These are also referred to as Linear Phase Crossovers.

12.5. Module, System and Sub–System Conﬁguration Files

See Figure 8.1 where Module data is highlighted

in Red and Frame data in Blue.

•

possible to store a Module File directly on the hardware device.

•

12.6. Frame and System Presets

The entire processor conguration can be stored as a Frame Preset on this hardware device. Presets can be recalled) via the Lake Controller software or Preset Manager utility; presets can be stored using the Lake Controller

software or Preset Manager utility. A maximum of 100 Frame Presets can be stored on this device. The data within

a Frame Preset encompasses the congurations of all Modules in the Frame, including levels, crossover, EQ, input

mixer, routing, and all other parameters. As Frame Presets are stored in the hardware device, recall is available without using a PC.

D SERIES Lake Operation Manual rev 3.0.1

13. System conﬁguration tutorial

Using the System Presets function in the Lake Controller, entire system congurations can be stored and

recalled across a network of Lake devices, including D Series Lake, LM, PLM and PLM+ Series devices. This

enables fast retrieval and switching of entire system congurations as minimal data is being sent between the

Controller and Processors.

13. System conﬁguration tutorial

This section will describe how to get started with associated software and set up a basic system for operation.

13.1. Network setup

13.1.1. Network connections/topology

Each frame has two network ports; a primary and a secondary. See the below diagram for a typical network topology using the primary ports.

By default, the secondary ports are congured in dual redundancy mode to support a second redundant network. The alternate conguration for the two ports is a switch mode which allows daisy–chaining devices in a single

network. Daisy chain mode is not recommended for more than a few devices, and for not more than two if running Dante audio along with control data.

Computer

Switch

D Series Lake

Wireless

Access Point

Switch

D Series Lake

NOTE: If using Dante audio in the network, the audio trafc needs to be ltered from reaching the wireless links.

13.1.2. Network conﬁguration

Frames are congured by default to obtain IP addresses automatically. The frame will assign itself an IP address in the link local range (169.254.1.0 through 169.254.254.255). If a computer is congured the same way

D SERIES Lake Operation Manual rev 3.0.1

13. System conﬁguration tutorial

(which should be default on modern operating systems), it will reside in the same subnet as the devices and communication can be established. Alternate congurations would be DHCP for a managed network or xed IP. To connect to the secondary network in dual redundancy mode the computer shall be congured with an IP

address in the 172.31.0.0 – 172.31.255.255.

13.2. Software installation and ﬁrmware update

13.2.1. Lake Controller software suite

1. The Lake controller software suite includes the Lake controller and accompanying utilities: Lake LoadLibrary, Dante discovery services and documentation. Download the Lake Controller installation from www.labgruppen.com.

2. Execute the installer and follow the on–screen instructions. This is a typical software installation where the default settings are acceptable for the vast majority of users.

13.2.2. CAFÉ software

1. The CAFÉ software is available as a separate installer on www.labgruppen.com.

2. Execute the installer and follow the on–screen instructions. This is a typical software installation where the default settings are acceptable for the vast majority of users.

13.2.3. Firmware update

The latest rmware for the product is included in the Lake controller installation. It is likely that rmware installed on

the new product is older and requires updating.

1. Make sure all frames are powered on and connected through a wired network.

2. Launch the Lake rmware update utility LakeUpdate.exe.

3. Select the appropriate product range.

4. If more than one network adapter is enabled, a prompt will appear requiring selection of the adapter connected to the frames.

5. If prompted, allow the application access through the Firewall.

6. Latest rmware is preselected.

7. Discovered frames are listed. Tap Select Old and Update to initiate rmware update of all outdated frames. Frames already up to date will not be selected.

8. Read warning message and tap OK.

9. Wait for all updates to be completed. A wait indication will display on the unit(s) during updating.

10. Follow the on screen instructions. Ampliers with rmware associated with Lake Controller 6.5.0 or later will automatically power cycle the mains power, whereas ampliers with older rmware will display a message that a manual power cycle is required. (Note: A manual power cycle requires the mains plug to be completely

removed, the standby button does not complete the rmware update.)

11. If internal updates are needed, these will be performed by the frame after the power cycle. A wait indication is displayed.

12. Tap Exit to close the update utility.

D SERIES Lake Operation Manual rev 3.0.1

13. System conﬁguration tutorial

13.3. System setup

This tutorial provides a step–by–step guide for conguration of a typical professional loudspeaker system and provides an overview of the basic features and operation of the frame. This tutorial describes how to congure 4–channel frame for use with a generic 3–way loudspeaker system (with separate HF, MF and LF drivers), plus

a separate subwoofer. It assumes that the system is fed with analog outputs from a mixing console with one fullrange main output and a separate sub feed.

1. Connect the loudspeakers to the four power output channels: a. Channel 1 – Low Frequency Driver b. Channel 2 – Mid Range Driver c. Channel 3 – High Frequency Driver d. Channel 4 – Subwoofer

2. Connect the main output of the mixing console to analog input 1 of the frame and the sub feed to input 2.

While conguring, it is a good practice to make sure the volume is turned down on the console.

3. Ensure the frame is powered on and is in its default state, and that the computer has established an active Ethernet connection.

4. On the Tablet PC, launch the Lake Controller software application. Select the appropriate network adapter if

more than one is enabled, and tap NO to the dialog asking whether to load the previous conguration.

5. Tap MODULES button on the menu bar at the bottom of the screen to access the Module Menu and scroll bar.

6. On the Module scroll bar, the frame is represented with a frame containing four discs. These are labeled A, B, C and D, each representing one of the four Lake processing modules.

7. Tap the frame to select it, then tap again in the MAIN area of the screen to place all modules of the frame in

the current system conguration. The Lake Controller uploads settings from the frame.

8. Tap the icon for Module A; its border will turn yellow to conrm selection and an LED on the front panel of the associated device will illuminate.

9. Tap the Module Store/Recall button on the Modules Menu; the menu will change to show additional options.

10. Double–tap the Default Modules folder, then double–tap the Contour Classic Crossovers folder. A set of loudspeaker symbols will be displayed.

11. Tap CL3way, and then tap the RECALL button. This congures the DSP for the Module A as a 3–way crossover for the 3 way speaker.

12. Tap Yes when asked to conrm that all data will be overwritten.

13. An Output conguration dialog will pop up to allow for routing of module outputs to power channels. Tap the orange number buttons in the matrix to un–route, freeing up a power channel. Tap a blue number button at the intersection of the appropriate module output and power channel, routing the module output to the power channel. Proceed until you have routing according to the picture below and tap the bottom right return button to exit the dialog.

D SERIES Lake Operation Manual rev 3.0.1

13. System conﬁguration tutorial

Bridge Bridge

14. The B module is already a CL1way as default and can be used to drive the sub.

15. Tap Store/Recall EXIT to return to the Modules Menu.

16. Ensuring Module A (or any other module that you want to control) is selected (yellow border), tap I/O Cong.

17. The right side of the I/O CONFIG screen displays a block diagram for the Modules. Tapping the different blue

blocks will access the conguration screens for Input mixer, Levels, Input EQ, Delay and Output EQ/Crossover respectively. The magnifying glass at the far right end accesses the output conguration. (NOTE: Tapping the blue return button (left arrow), or the EQ/Levels EXIT button in the menu bar returns to the I/O Cong screen from the various conguration screens.)

Input Mixer Conguration – Drag sliders and tap ON/OFF buttons to control input mixer settings.

D SERIES Lake Operation Manual rev 3.0.1

13. System conﬁguration tutorial

Levels Control – Drag sliders and tap mute buttons for module input and output channels.

Delay Control – Drag sliders to control input and output delay Crossover control – Select lters and drag on the bottom

Parametric EQ control – Select lter on the top squares

and adjust lter properties by dragging the controls. Sliders at the bottom control center frequency and Q (bandwidth). Gain is controlled in the main window area. Additional lters can be added by tapping the top lter objects and placing new lters on the main area.

frequency bar to adjust crossover frequency. Crossover types may be changed by selecting the Crossover Functions button.

18. Tap the Input Gain button in the block diagram and unmute the Module Input Mute. Tap EQ/Levels Exit to return to

IO Cong.

19. The left side of the IO cong screen holds frame conguration and summary for Clock conguration, Input conguration, Dante conguration, Breaker Emulation Limiter conguration and Analog Iso–Float & AES Termination conguration. All these congurations should be correct by default for this example.

20. From I/O cong, tap Amplier Events & Control and navigate to the Status tab. Unmute the power channels and slowly increase the volume on the appropriate feed from the mixing console. Audio should now be active at the

outputs and heard through the loudspeakers. Close the Amplier Events & Control dialog with the return button and return to the main area by tapping the I/O Cong EXIT button.

Amplier Events & Control, Status tab – Drag sliders to adjust power channel attenuation and tap mute buttons to control power channel mute. Metering and Status monitoring is available for each power channel.

D SERIES Lake Operation Manual rev 3.0.1

13. System conﬁguration tutorial

21. Repeat step 16 and 20 for the B module. On the Output EQ/Crossover, tap the Aux Output Functions button on the menu bar and then tap LPF Enable button. Drag the Low pass lter control object on the frequency slider just above the menu bar to an appropriate crossover frequency for the sub, e.g. 100 Hz.

22. Use the control options mentioned in 17 to tune your loudspeakers. For larger systems, modules can be

placed in groups (Groups menu from the MAIN page) for control of multiple units.

23. Some features like RPM can only be congured from within CAFÉ software. Return to AMPLIFIER EVENTS & CONTROL; from the main area hit MODULES button, select a module (e.g. Module A), tap I/O Cong, tap AMPLIFIER EVENTS & CONTROL, and navigate to the Control tab. The CAFÉ button (next to bottom) opens the CAFÉ application and imports and highlights the current amplier and its RPM view.

CAFÉ, RPM view – Enter power requirements and impedances for the channels to congure RPM.

13.4. Additional Software Reference Material

Additional information regarding conguration of Lake Controller for specic loudspeaker systems is available in the

Lake Controller Operation Manual, available for download in PDF format at www.labgruppen.com/support.

Additional information on conguration of CAFÉ software is available in an integrated guide in the software program

and in the CAFÉ Coach videos posted on the Lab.gruppen web site and on the Lab.gruppen channel on YouTube.

D SERIES Lake Operation Manual rev 3.0.1

14. Appendix

Category/Type Name On screen text Description Action

FRAME

Warning

Lake Controller ofine CTRL OFFLINE

Frame unable to nd Lake controller

on the network

Check network cabling/

network if controller

expected on the network

Warning

AES / Dante clock slipping CLOCK SLIPPING

Frame not able to lock to incoming

AES stream or Dante clock slipping.

Check AES sender and

clock conguration or

Dante clock settings

Warning

Dante device na me conict NAME CONFLICT

Two or more devices on the network

with the same Dante name

Review Dante

conguration

Warning

Dante module not detected

DANTE NEEDS

SERVICE

Lake cannot detect a functioning

Dante module

Restart device; if not

cleared it needs service

to operate Dante

Warning

Dante module with

incompatible rmware

DANTE FW INVALID

Dante module not loaded

with correct FW

Retry updating the rmware

with LakeUpdate

Warning

Dante module disabled DANTE DISABLED

Dante module not communicated

correctly or other internal

conguration fault

Restart device; if not

cleared it needs service

Warning

Sense fault D SP SENS FLT:DSP

Voltage and current sensing on amplier

output fault y. Audio continues but

protection might be compromised.

No load monitoring

Restart device; if not

cleared it needs service

Warning

A/D converter power

supply fault

A/D P SU FAULT

Voltage supply to the analog input

converters faulty

Restart device; if not

cleared it needs service for

analog input to work

Fault

Audio Fault AUDIO FAULT

Internal audio interface

not functioning

Restart device; if not

cleared it needs service

Fault

DICO communication fault DICO COMM FAULT

Communication fault between host

and amplier platform

Restart device; if not

cleared it needs service

TEMP

Warning

Temperature warning

power supply

TEMP WARN:PSU

Power supply temperature approaching critical levels

Improve cooling or reduce

output power to avoid

temperature becoming

critical

Warning

Temperature warning

DSP area

TEMP WARN:DSP

DSP area temperature approaching

critical levels

Improve cooling or reduce

output power to avoid

temperature becoming

critical

Warning

Power supply

Temperature Limit

PTL ACTIVE

Amplier is reducing output power

to avoid power supply temp

fault protection

Improve cooling or reduce

output power to avoid

limiting

Warning

Amp channel

Temperature Limit

ATL ACTIVE

Amplier channel is reducing output

power to avoid amplier channel

temp fault protection

Improve cooling or reduce

output power to avoid

limiting

Category/Type Name On screen text Description Action

Fault

Temperature fault

power supply

TE MP F LT:PS U

Power supply temperature reached

internal protection limit

Automatically restarts

when cooled down

Fault

Temperature fault

DSP area

TE MP F LT:D SP

DSP area re ached

critical temperature

Improve cooling or

reduce power

PSU

Warning

Under Voltage Limit UVL ACTIVE

The Under Volt age limiter is active a

the mains supply is approaching

the lower end of the device’s

operational voltage. Output power

is decreased to ensure mains distribution does not collapse

Increase mains distribution

stiffness or reduce output

power to avoid limiting

Warning

Power Average Limit PA L ACT IVE

Amplier is reducing output power due

to average power or mains current

draw is above safe operating levels

Reduce output power

to avoid limiting

Warning

Breaker Emulation Limit BEL ACTIVE

Power supply is reducing mains current

draw to stay within B EL congured

nominal current and prole

Improve mains distribution

and update BEL

conguration or reduce

output power to avoid

limiting

Warning

Mains supply glitch MAINS GLITCH

Mains glitch (missing cycles) was

detected on the mains inlet

Check mains distribution/

connection

Fault

Need service NEED SERVICE:1–8 Power supply internal error

Restart device; if not

cleared it needs service

Fault

Mains voltage above

400 volt peak

MAINS>400 VPK

Power supply detects mains voltage above 40 0 volt peak. Protective shut

down, auto restart attempt

Check mains distribution/

connection

Fault

Mains voltage above

270 V

MAINS>270 V

Power supply detects mains voltage

above operation voltage. Protective

shut down, auto restart attempt

Check mains distribution/

connection

Fault

Mains voltage below

65 V

Mains<65 V

Power supply detects mains voltage

below operation voltage. Protective

shut down, auto restart attempt

Check mains distribution/

connection

Fault

Power supply fault PS U FAULT Internal power supply fault

Check mains distribution/

connection. Restart

device; if not cleared

it needs service

Fault

Check mains CHECK MAINS

Power supply detects unstable

mains supply. Protective shut down,

auto restart attempt

Check mains distribution/

connection

Fault

Power supply power protect PSU POWER PROT

Too high output power for too low

mains supply voltage. Protective

shut down, auto restart attempt

Improve mains supply

voltage or reduce

output power

LOAD

Warning

Speaker short SPKR SHORT Both LoadPilot tones below thresholds Check load or calibration

Warning

Speaker damaged SPK R DAMAGED

One LoadPilot tone is above

or below threshold

Check load or calibration

14. Appendix

14.1. Faults and warnings

D SERIES Lake Operation Manual rev 3.0.1

14. Appendix

Category/Type Name On screen text Description Action

Warni ng

Under speaker count UNDER S PKR CNT

Both LoadPilot tones above

thresholds or LoadSmart detected

fewer speakers than expected

Check load, cabling and

calibration

Warni ng

More speakers OVR SPKR COUNT

LoadSmart detected more speakers

than expected

Check load and

Warni ng

Uncertain about load UNCERTAIN LOAD LoadSmart uncer tain about load

Check load and

Fault

No load NO LOAD

At least one LoadPilot tone above

above thresholds

Check load or calibration

Fault

Wrong load WRONG LOAD

LoadSmart detected impedance

response output model

Check load and

Fault

Short circuit SHORT CIR CUIT

LoadPilot or full frequency analysis

below short threshold or hardware

short protection

Check load and cabling

AMP

Warni ng

channel

TEMP WARN

critical temperature

Improve cooling or reduce

output power to avoid

temperature becoming

critical

Fault

TEMP FAULT

internal protection limit

Automatically unmutes

when cooled down

Warning

(D200, D120, D80 only)

VHF WARNINGVery high frequency warning

Amplifier channel gain

reduction due to VHF content

Check input signal

Fault

Service channel SERVICE C H.

Restart device; if not

cleared it needs service

Fault

Very high frequency fault VHF FAULT

Check input signal

Fault

Current average limiter CAL ACTIVE

above safe operating level

Reduce output power

to avoid limiting

Clip

Current clip CURRENT CLIP

current limit

Reduce output power

to avoid limiting

Clip

Voltage clip VOLTAGE CLIP

Reduce output power

to avoid limiting

Clip

Module clip MOD. CLIP Module output signal clipped

Review gain structure.

Module gain vs A mpGain

SIGNAL

Fault

No input source NO INPUT

Input router has no valid

input source

Review input router

settings/connections

Clip

Analog/AES input clip INPUT CLIP

The signal on the analog/AES input

is above inputs capability

Lower the signal on the

D SERIES Lake Operation Manual rev 3.0.1

14.2. Current draw and thermal dissipation

D SERIES 10:4

Level Load

Rated power

per channel

Line Cu rrent Measured Power (W) Thermal Dissipation

(A) In Out Dissipated BTU/hr kCal/hr

Mains Voltage 100 VAC

Standby

0.1 7 0 7 24 6

Power On , Idling, Green Mod e

0.5 45 0 45 153 38

Power On , Idling, Perform ance Mode

0.7 71 0 71 241 61

Pink Pseudo Noise

16 Ω / Ch. 250 x 4 2.3 229 125 104 355 89 8 Ω / Ch. 250 x 4 2.4 240 125 115 391 98 4 Ω / Ch. 250 x 4 2.6 254 125 12 9 439 111 2 Ω / Ch. 250 x 4 2.8 279 125 15 4 527 133 100 V / Ch. 175 x 4 1.8 17 9 88 92 313 79 70 V / Ch. 250 x 4 2.3 230 125 105 358 90

Mains Voltage 120 VAC

Standby

0.1 7 0 7 24 6

Power On , Idling, Green Mod e

0.4 44 0 44 152 38

Power On , Idling, Perform ance Mode

0.6 70 0 70 238 60

Pink Pseudo Noise

16 Ω / Ch. 250 x 4 1.9 228 125 103 350 88 8 Ω / Ch. 250 x 4 2.0 238 125 113 386 97 4 Ω / Ch. 250 x 4 2.1 252 125 127 433 109 2 Ω / Ch. 250 x 4 2.3 277 125 152 519 131 100 V / Ch. 175 x 4 1.5 17 9 88 91 311 78 70 V / Ch. 250 x 4 1.9 229 125 103 353 89

Mains Voltage 208 VAC

Standby

0.1 7 0 7 24 6

Power On , Idling, Green Mod e

0.3 42 0 42 142 36

Power On , Idling, Perform ance Mode

0.4 66 0 66 225 57

Pink Pseudo Noise

16 Ω / Ch. 250 x 4 1.1 221 125 96 328 83 8 Ω / Ch. 250 x 4 1.1 228 125 103 353 89 4 Ω / Ch. 250 x 4 1.2 245 125 120 408 103 2 Ω / Ch. 250 x 4 1.3 269 125 14 4 493 124 100 V / Ch. 175 x 4 0.9 174 88 86 294 74 70 V / Ch. 250 x 4 1.1 222 125 97 332 84

Mains Voltage 230 VAC

Standby

0.1 7 0 7 25 6

Power On , Idling, Green Mod e

0.3 41 0 41 141 36

Power On , Idling, Perform ance Mode

0.3 65 0 65 222 56

Pink Pseudo Noise

16 Ω / Ch. 250 x 4 1.0 218 12 5 93 317 80 8 Ω / Ch. 250 x 4 1.0 225 125 100 342 86 4 Ω / Ch. 250 x 4 1.1 238 125 113 387 97 2 Ω / Ch. 250 x 4 1.2 263 125 13 8 472 119 100 V / Ch. 175 x 4 0.8 168 88 81 275 69 70 V / Ch.

250 x 4 1.0 216 12 5 91 311 78

14. Appendix

D SERIES Lake Operation Manual rev 3.0.1

14. Appendix

D SERIES 20:4

Level Load

Rated power

per channel

Line Cu rrent Measured Power (W) Thermal Dissipation

(A) In Out Dissipated BTU/hr kCal/hr

Mains Voltage 100 VAC

Standby

0.2 7 0 7 24 6

Power On , Idling, Green Mod e

0.5 46 0 46 157 39

Power On , Idling, Perform ance Mode

0.7 71 0 71 243 61

Pink Pseudo Noise

16 Ω / Ch. 425 x 4 2.9 348 213 136 463 117 8 Ω / Ch. 50 0 x 4 3.5 418 250 168 573 144 4 Ω / Ch. 50 0 x 4 3.7 444 250 194 662 16 7 2 Ω / Ch. 50 0 x 4 4.1 492 250 242 825 208 100 V / Ch. 250 x 4 1.9 230 125 105 360 91 70 V / Ch. 500 x 4 3.5 410 250 16 0 546 138

Mains Voltage 120 VAC

Standby

0.1 7 0 7 23 6

Power On , Idling, Green Mod e

0.4 45 0 45 155 39

Power On , Idling, Perform ance Mode

0.6 71 0 71 241 61

Pink Pseudo Noise

16 Ω / Ch. 425 x 4 2.9 346 213 134 457 115 8 Ω / Ch. 50 0 x 4 3.5 411 250 161 550 139 4 Ω / Ch. 50 0 x 4 3.7 441 250 190 650 16 4 2 Ω / Ch. 50 0 x 4 4.1 487 250 237 810 204 100 V / Ch. 250 x 4 2.0 231 12 5 10 6 361 91 70 V / Ch. 500 x 4 3.4 408 250 158 540 13 6

Mains Voltage 208 VAC

Standby

0.1 7 0 7 24 6

Power On , Idling, Green Mod e

0.3 43 0 43 147 37

Power On , Idling, Perform ance Mode

0.4 67 0 67 229 58

Pink Pseudo Noise

16 Ω / Ch. 425 x 4 1.5 336 213 124 422 106 8 Ω / Ch. 50 0 x 4 1.8 398 250 14 8 506 127 4 Ω / Ch. 50 0 x 4 1.9 426 250 176 600 151 2 Ω / Ch. 50 0 x 4 2.1 471 250 221 753 190 100 V / Ch. 250 x 4 1.0 224 125 99 339 85 70 V / Ch. 500 x 4 1.8 395 250 14 5 496 125

Mains Voltage 230 VAC

Standby

0.2 7 0 7 24 6

Power On , Idling, Green Mod e

0.3 43 0 43 146 37

Power On , Idling, Perform ance Mode

0.4 67 0 67 227 57

Pink Pseudo Noise

16 Ω / Ch. 425 x 4 1.5 333 213 12 0 411 104 8 Ω / Ch. 50 0 x 4 1.8 394 250 14 4 493 124 4 Ω / Ch. 50 0 x 4 1.9 419 250 169 577 145 2 Ω / Ch. 50 0 x 4 2.1 467 250 217 741 187 100 V / Ch. 250 x 4 1.0 222 125 97 331 83 70 V / Ch.

500 x 4 1.8 392 250 142 484 122

D SERIES Lake Operation Manual rev 3.0.1

14. Appendix

D SERIES 40:4

Level Load

Rated power

per channel

Line Cu rrent Measured Power (W) Thermal Dissipation

(A) In Out Dissipated BTU/hr kCal/hr

Mains Voltage 100 VAC

Standby

0.2 7 0 7 24 6

Power On , Idling, Green Mod e

0.6 59 0 59 201 51

Power On , Idling, Perform ance Mode

0.8 78 0 78 267 67

Pink Pseudo Noise

16 Ω / Ch. 700 x 4 5 .1 502 350 152 518 131 8 Ω / Ch. 1000 x 4 7.2 709 500 209 714 180 4 Ω / Ch. 1000 x 4 7.6 754 500 254 868 219 2 Ω / Ch. 80 0 x 4 7.0 689 400 289 986 249 100 V / Ch. 1000 x 4 7.1 701 500 20 0 684 172 70 V / Ch. 1000 x 4 7.5 738 500 238 812 205

Mains Voltage 120 VAC

Standby

0.2 7 0 7 24 6

Power On , Idling, Green Mod e

0.5 59 0 59 200 50

Power On , Idling, Perform ance Mode

0.7 77 0 77 263 66

Pink Pseudo Noise

16 Ω / Ch. 700 x 4 4.2 497 350 147 503 127 8 Ω / Ch. 1000 x 4 5.9 700 500 19 9 681 172 4 Ω / Ch. 1000 x 4 6.3 743 500 243 829 209 2 Ω / Ch. 80 0 x 4 5.7 679 400 279 953 240 100 V / Ch. 1000 x 4 5.8 690 500 190 648 163 70 V / Ch. 1000 x 4 6.1 726 500 226 772 195

Mains Voltage 208 VAC

Standby

0.3 7 0 7 25 6

Power On , Idling, Green Mod e

0.5 58 0 58 198 50

Power On , Idling, Perform ance Mode

0.5 77 0 77 263 66

Pink Pseudo Noise

16 Ω / Ch. 700 x 4 2.2 486 350 136 464 117 8 Ω / Ch. 1000 x 4 3.1 6 81 500 181 617 155 4 Ω / Ch. 1000 x 4 3.3 723 500 223 759 191 2 Ω / Ch. 80 0 x 4 3.0 662 400 261 892 225 100 V / Ch. 1000 x 4 3.0 673 500 17 3 589 14 8 70 V / Ch. 1000 x 4 3.2 707 500 207 707 178

Mains Voltage 230 VAC

Standby

0.3 7 0 7 25 6

Power On , Idling, Green Mod e

0.4 58 0 58 197 50

Power On , Idling, Perform ance Mode

0.5 77 0 77 263 66

Pink Pseudo Noise

16 Ω / Ch. 700 x 4 2.2 474 350 124 423 106 8 Ω / Ch. 1000 x 4 3.0 664 500 16 4 558 141 4 Ω / Ch. 1000 x 4 3.2 705 500 205 701 176 2 Ω / Ch. 80 0 x 4 3.0 649 400 249 850 214 100 V / Ch. 1000 x 4 3.0 659 500 159 544 137 70 V / Ch. 1000 x 4 3.2 694 500 194 661 166

D SERIES Lake Operation Manual rev 3.0.1

14. Appendix

D SERIES 80:4

Level Load

Rate d power

per ch annel

Line Cu rrent

Power Facto r

Meas ured Power ( W) Thermal D issipat ion

(A) (%) In Out Dis sipated BTU /hr kCal/ hr

Mains Vo ltage 100 VAC, 30 A

Standby 0.3 4 3 11 0 11 3 6 9

Power on , Idling 2.1 99 204 0 2 04 696 175

Pink Ps eudo Nois e

16 Ω / Ch. 750 10.1 99 981 37 5 607 20 70 522

8 Ω / Ch. 15 00 15.3 99 14 92 749 743 25 34 639

4 Ω / Ch. 20 00 14.9 99 1502 6 52 850 29 00 731

2.67 Ω / Ch. 2000 15.3 9 9 1539 6 25 914 3120 7 87

2 Ω / Ch. 20 00 15.2 99 15 38 56 0 978 33 37 841

LoadP ilot Sine 20 k Hz

8 Ω / Ch. 2.2 9 8 211 0 211 72 0 181

ains Volta ge 120 VAC, 30 A

Stan dby 0.3 3 5 11 0 11 37 9

Powe

r on, Idl ing 1.8 9 8 202 0 202 689 174

Pink Ps eudo Nois e

16 Ω / Ch. 750 8.0 99 9 54 375 579 1977 499

8 Ω / Ch. 15 00 12.6 99 1476 74 9 727 24 80 625

4 Ω / Ch. 20 00 14.4 99 1739 817 923 3148 794

2.67 Ω / Ch. 2000 14.7 9 9 1780 76 6 1014 3 461 873

2 Ω / Ch. 20 00 15.2 99 18 39 73 9 1101 375 5 947

LoadP ilot Sine 20 k Hz

8 Ω / Ch. 1.8 9 8 211 0 211 719 181

Mains Vo ltage 208 VAC, 17.3 A

Standby 0.3 17 11 0 11 39 10

Power on , Idling 1.1 91 197 0 197 673 170

Pink Ps eudo Nois e

16 Ω / Ch. 750 4.6 99 927 375 55 2 18 84 475

8 Ω / Ch. 15 0

0 7.1 99 1436 749 6 87 2 345 5 91

4 Ω / Ch. 20 0

0 9.3 10 0 1955 10 00 955 3260 822

2.67 Ω / Ch. 2000 9. 8 10 0 2 087 1003 10 84 369 8 93 3

2 Ω / Ch. 20 00 10.3 100 2182 1001 1181 4 030 1016

LoadP ilot Sine 20 k Hz

8 Ω / Ch. 1.1 9 2 20 4 0 204 69 5 175

Mains Vo ltage 230 VAC, 16 A

Standby 0.3 17 12 0 12 39 10

Power on , Idling 1.0 89 193 0 193 6 60 166

Pink Ps eudo Nois e

16 Ω / Ch. 750 4.2 99 9 48 375 573 1957 493

8 Ω / Ch. 15 00 6.4 99 1443 749 6 94 236 9 5 97

4 Ω / Ch. 20 00 8.1 99 1907 10 00 9 06 309 2 78 0

2.67 Ω / Ch. 2000 8.7 100 2 052 1003 10 49 3 580 9 03

2 Ω / Ch. 20 00 9.4 10 0 2 200 1000 1201 409 6 10 33

LoadP ilot Sine 20 k Hz

8 Ω / Ch. 1.0 8 9 2

04 0 20 4 6 95 175

D SERIES Lake Operation Manual rev 3.0.1

D SERIES 120:4

Level Load

Rate d power

per ch annel

Line Curr ent

Power Facto r

Measur ed Power (W) Therma l Dissip ation

(A) (%) In Out Dis sipated BT U/hr kCal/ hr

Main s Voltage 100 VAC, 30 A

Stan dby 0.3 4 3 12 0 12 4 0 10

Power on, I dling 2.3 98 219 0 219 749 18 9

Pink Ps eudo Noise

16 Ω / Ch. 950 10.8 99 10 59 475 5 84 19 94 503

8 Ω / Ch. 19 00 19.2 99 1868 949 919 3136 791

4 Ω / Ch. 3000 24. 6 9 9 2389 120 0 1189 40 57 1023

2.67 Ω / Ch. 3000 25 .7 9 9 2551 1151 140 0 4776 1204

2 Ω / Ch. 3000 25. 8 9 9 2576 1113 146 3 4 992 1259

LoadP ilot Sine 20 kHz

8 Ω / Ch. 2.4 9 8 2 31

0 231 7 89 199

Main s Voltage 120 VAC, 30 A

Stan dby 0.3 3 6 11 0 11 3

9 10

Power on, I dling 1.9 98 215 0 2 15 734 185

Pink Ps eudo Noise

16 Ω / Ch. 950 8.8 99 1035 475 5 60 1910 482

8 Ω / Ch. 19 00 15.1 99 1765 94 9 8 15 2 783 702

4 Ω / Ch. 3000 24. 0 9 9 2817 150 2 1315 44 87 1131

2.67 Ω / Ch. 3000 24. 5 9 9 2894 143 7 1456 4969 125 3

2 Ω / Ch. 3000 2 5.1 9 9 2980 136 1 1619 55 24 1393

LoadP ilot Sine 20 kHz

8 Ω / Ch. 2.0 9 7 22 6 0 226 77 3 195

Main s Voltage 208 VAC, 17.3 A

Stan dby 0.3 18 12 0 12 42 11

Power on, I dling 1.1 91 211 0 211 72 0 182

Pink Ps eudo Noise

16 Ω / Ch. 950 4.9 99 1

001 475 52 6 1795 453

8 Ω / Ch. 19 00 8.7 99 1766 949 816 278 6 702

4 Ω / Ch. 3000 1

3.3 9 9 2 687 1501 1186 40 46 1020

2.67 Ω / Ch. 3000 14. 0 9 9 2847 150 0 1346 45 94 1158

2 Ω / Ch. 3000 14. 8 9 9 3046 150 0 1546 52 76 1330

LoadP ilot Sine 20 kHz

8 Ω / Ch. 1.2 9 3 2 21 0 221 75 4 190

Main s Voltage 230 VAC, 16 A

Stan dby 0.3 18 13 0 13 43 11

Power on, I dling 1.0 90 205 0 20 5 698 176

Pink Ps eudo Noise

16 Ω / Ch. 950 4.7 99 1003 475 5 29 1803 455

8 Ω / Ch. 19 00 7.7 99 1734 949 7 84 2676 675

4 Ω / Ch. 3000 11.4 99 25 62 1501 1061 3 620 913

2.67 Ω / Ch. 3000 12. 8 9 9 2873 1499 1374 4688 1182

2 Ω / Ch.

3000 13.1 9 9 2 993 1500 1493 50 95 1285

LoadP il

Sine 20 kHz

8 Ω / Ch. 1.0 9 0 2 14 0 214 73 0 184

14. Appendix

D SERIES Lake Operation Manual rev 3.0.1

14. Appendix

D SERIES 200:4

Level Load

Rate d power

per ch annel

Line Curr ent

Power Facto r

Measur ed Power (W) Therma l Dissip ation

(A) (%) In Out Dis sipated BT U/hr kCal/ hr

Main s Voltage 100 VAC, 30 A

Stan dby 0.3 5 2 17 0 17 58 15

Power on, I dling 2.4 97 235 0 23 5 802 202

Pink Ps eudo Noise

16 Ω / Ch. 1150 12.1 99 1192 5 88 604 2 061 520

8 Ω / Ch. 23 00 22.3 99 2198 1174 1024 3 493 88 1

4 Ω / Ch. 44 00 29 .2 9 9 28 53 1478 13 75 4691 1183

2.67 Ω / Ch. 5000 29.2 9 9 2 862 1399 1463 4 991 1259

2 Ω / Ch. 44 00 2 9.1 9 9 28 26 1355 1472 5 022 1266

LoadP ilot Sine 20 kHz

8 Ω / Ch. 2

.5 97 236 0 236 807 20 3

Main s Voltage 120 VAC, 30 A

Stan dby 0.3 4 8 17 0 17 5

8 15

Power on, I dling 2.0 97 227 0 22 7 775 195

Pink Ps eudo Noise

16 Ω / Ch. 1150 12.0 99 1180 5 88 593 2 023 510

8 Ω / Ch. 23 00 18.4 99 2144 1174 970 33 10 8 35

4 Ω / Ch. 44 00 30.0 9 9 3457 189 6 1561 53 26 1343

2.67 Ω / Ch. 5000 29.5 9 9 3 439 1752 1687 5 756 1451

2 Ω / Ch. 44 00 29 .9 9 9 34 95 16 65 1830 6 245 1575

LoadP ilot Sine 20 kHz

8 Ω / Ch. 2.0 9 7 23 2 0 232 79 0 199

Main s Voltage 208 VAC, 17.3 A

Stan dby 0.3 2 7 18 0 18 60 15

Power on, I dling 1.2 92 222 0 22 2 757 191

Pink Ps eudo Noise

16 Ω /

Ch. 1150 5.7 9 9 1151 58 8 56 4 1923 48 5

8 Ω / Ch. 23 00 10.2 99 2 055 1174 881 3 005 75 8

4 Ω / Ch

. 44 00 16 .2 99 328 6 1948 133 8 456 5 1151

2.67 Ω / Ch. 5000 15.6 9 9 3171 1752 1419 4 843 1221

2 Ω / Ch. 44 00 16. 0 9 9 32 53 1665 15 89 5420 13 67

LoadP ilot Sine 20 kHz

8 Ω / Ch. 1.2 9 2 22 9 0 229 78 0 197

Main s Voltage 230 VAC, 16 A

Stan dby 0.3 2 3 18 0 18 61 15

Power on, I dling 1.2 92 222 0 22 2 757 191

Pink Ps eudo Noise

16 Ω / Ch. 1150 5.1 98 1134 5 88 546 18 63 470

8 Ω / Ch. 23 00 9.2 99 205 3 1174 87 9 29 99 75 6

4 Ω / Ch. 44 00 15. 9 9 9 35 29 2109 142 0 4845 122 2

2.67 Ω / Ch. 5000 16.0 9 9 3 564 1935 1630 5 561 1402

2 Ω / Ch. 44 00 16. 0 9 9 35 77 1856 172 2 5875 14 8

LoadP ilot Sine 20 kHz

8 Ω / Ch. 1.1 9 0 22 8 0 228 777 19 6

D SERIES Lake Operation Manual rev 3.0.1

14. Appendix

14.3. Maintenance

During normal operation a D Series device provides trouble–free service. If the front panel display requires cleaning, use a soft cloth only; do not use solvent cleaners.

The dust lters on both sides of the front panel, behind the grilles, should occasionally be removed and cleaned to ensure maximum airow through the device. Disconnect the unit from mains power prior to removing dust the lter, and ensure the dust lter is replaced prior to turning the unit back on.

In extreme cases it may be necessary to clean the inside of the device. This procedure should only be carried out

by qualied service personnel. Internal cleaning may be necessary if the device has had prolonged operation in an

extreme environment such as one where cracked oil smoke machines are in use. If the device is used in extreme conditions, it is recommended to have it serviced every three years as a preventative measure.

D SERIES Lake Operation Manual rev 3.0.1

15. Technical Speciﬁcations

General

Processing / Network Lake / Dante Lake / Dante Lake / Dante

Number of amplier channels 4 4 4 Total burst power all channels (share among channels with RPM) 20000 W 12000 W 8000 W

Max. O utput Power (all ch.’s driven)

2 ohms 4400 W 3000 W 2000 W

2.67 ohms 5000 W 3000 W 2000 W 4 ohms 4400 W 3000 W 2000 W 8 ohms 2300 W 190 0 W 1500 W 16 oh ms 1150 W 950 W 750 W

Hi-Z 70 V 3300 W 3000 W 2000 W Hi-Z 100 V 4700 W 3000 W 2000 W

Max. O utput power bridged mode (all ch.’s driven)

4 ohms 8800 W 6000 W 4000 W 8 ohms 8800 W 6000 W 4000 W 16 oh ms 4600 W 3800 W 3000 W

Max output powe r single channel (all model s)

2 ohms 4400 W

2.67 ohms 5900 W 4 ohms 4600 W 8 ohms 2300 W 16 oh ms 1150 W

Hi-Z 70 V 3300 W Hi-Z 100 V 4700 W

Amplier output modules (all models, all channels)

Peak output voltage 194 V Max output current 67 A

Rational Power Management (RPM)

Default voltage limitation (can be lifted with RPM conguration) 194 V 175 V 155 V Protection features Current Average Limiter (CAL), Very High Frequency Protection (VHF), Direct Current Protection (DC),

D 200:4L D 120:4L D 80:4L

Share “ total burst pow er” of the produ ct freely amo ng channel s. Any channe l can scale up to th e “Max. outp ut power single channel”

Short Circuit Protection, Current-Clip Limiter, Voltage Clip Limiter, Temperature protection

Amplier platform

Inter Sample Voltage Peak Limiter (ISVPL) Congurable Peak voltage threshold and prole Amplier gain Digital congurable amplier gain 22 - 44 dB

Pilot tone generation and analysis LoadPilot Load impedance analysis

Temperature control Regulated fans and show must go on limitation (ATL, PTL)

Audio Performance (Amplier platform with digital input)

THD + N 20 Hz - 20 kHz for 1 W < 0.05 % THD + N at 1 kHz and 1 dB below clipping < 0.04 % Dynamic range > 114 dB

Channel separation (Crosstalk) at 1 kHz > 70 dB Frequency response (1 W into 8 ohm, 20 Hz - 20 kHz) +/- 0.05 dB

Internal sample rate / Data path 48 / 96 kHz / 32 bit oating point Product propagation delay AES 96 kHz / analog input 1.61 / 1.68 ms

Lake processing

Loudspeaker processing Up to 4 modules of Classic/linear-phase/FIR crossover, EQ, delay, LimiterMa x™ - peak and RMS limiters System tuning Group control with Raised Cosine™ MESA EQ™ asymmetric lters Input redundancy / Matrix Automatic 4 level input redundancy / 4 input mixers System integration Comprehensive 3rd party protocol over UDP Ethernet

Dante Audio Net work

Dante I/O 8 x 8 Network topology / redundancy Flexible topology / Supports daisy-chained and Dual redundant networks Sample rates / transport 48, 96 kHz / Uni + Multicast Network latency 0.25, 0.5, 1.0, 2.0, 5.0 ms

Analog inputs

Inputs 4 high quality inputs with Iso-Float ground isolation Maximum input / digital reference + 26 dBu / +21 dBu Sampling rate / resolution 9 6 kHz / 24 bit Input impedance balanced / unbalanced 20 / 10 kOhm

THD + N (typical at 1 kHz unweighted) 0.00022 % THD + N (typical at 20 Hz and 20 kHz unweighted) 0.00033 %

Yes

D SERIES Lake Operation Manual rev 3.0.1

15. Technical Speciﬁcations

AES Inputs

Inputs 2 AES inputs (4 audio channels) Supported sample rates / resolution 44.1, 48, 88.2, 96, 176.4, 192 kHz / up to 24 bit Sample rate conversion THD + N 20 Hz - 20 kHz unweighted 0.00003 %

Rear panel inte rface

Analog inputs 4 x Terminal block connectors along input with +, – and ground AES inputs 2 x Terminal block connectors Output connectors

Ethernet ports Detachable mains cord Neutrik PowerCon rated at 250 V / 32 A

Front panel user interface

System status indication 3 x tri-color LED. FRAME, TEMP, PSU for device status indication Channel status indication 3 x tri-color LED per channel. Status indication separate d for channel LOAD, AMP, SIGNAL status Mute Per channel touch button for MUTE control and tri-color LED for indication Power Touch button for ON/STANDBY control and tri-color LED for power state indication Select Touch button and LED for bi-directional device software select functionality

Mains Power

Nominal voltage 100 – 240 V AC 50 – 60 Hz Operating voltage 70 – 265 V AC 45 – 66 Hz Mains wall plug

Power supply features

Soft start / Inrush power Yes / Max 8 A Power factor correction > 0.98 for mains power > 400 W

Regulated switch mode power supply (R.SMPS) Yes Breaker Emulation Limiter (BEL) Congurable current threshold and breaker prole

BEL max current threshold 32 A 25 A 15 A

Power Average Limiter (PAL) Yes Under Voltage Limite r (UVL) Yes

Mains undervoltage and overvoltage protection and mains glitch tolerance

Dimensions

Rack rail to rear panel W: 483 mm (19”), H: 88 mm (2 U), D: 424 mm (16”) Overall all depth front–rear support D: 463 mm

Weight Finish

Approvals

D 200:4L D 120:4L D 80 :4L

4 x 2 pole Terminal block connectors rated at 1000 V / 76 A (exceeding amplier capacity)

Can take up to 16 mm

2 x EtherCon RJ 45 100 /100 0 Ba se –T fo r the Lake Co ntroller, Dan te co ntr oll er an d/o r DLM (3 rd part y pr otocol )

Selectable on order

CEE 7/7 “Schuko” 230 V / 16 A, NEMA L5–30 “Twistlock” 125 V / 30 A, NEMA 5–15P 125 V / 15 A (D 80:4 only), NEMA 5–20P 125 V / 20 A (D120:4 only), NEMA 6–20P 250 V / 20 A, AS/NZS 3112 230 V / 15 A (Aus/Nz), BS 546 230 V / 16 A (India), C–30P 125V / 30A (Japan)

Yes

16.5 kg (36 lbs) 15.8 kg (35 lbs) 14.5 kg (32 lbs)

Black painted steel chassis with grey painted steel front with detachable grille

CE, ETL (A NSI/UL, CSA), PSE, RCM

(6 AWG) cables

Note 1): Lab.gruppen burst power (1 kHz, 25 ms burst power @ 150 BPM, 12 dB Crest factor)

All specifications are subject to change without notice.

D SERIES Lake Operation Manual rev 3.0.1

15. Technical Speciﬁcations

General

Processing / Network Lake / Dante Lake / Dante Lake / Dante

Number of amplier channels 4 4 4 Total burst power all channels (share among channels with RPM) 4000 W 2000 W 1000 W

Max. O utput Power (all ch.’s driven)

2 ohms 800 W 500 W 250 W

2.67 ohms 1000 W 500 W 250 W 4 ohms 1000 W 500 W 250 W 8 ohms 1000 W 500 W 250 W 16 oh ms 700 W 425 W 250 W

Hi-Z 25 V 500 W 500 W 250 W Hi-Z 70 V 1000 W 500 W 250 W Hi-Z 100 V 1000 W 250 W 175 W

Max output powe r single channel

2 ohms 850 W 850 W 850 W

2.67 ohms 1150 W 115 0 W 1000 W 4 ohms 1750 W 1600 W 1000 W 8 ohms 1350 W 1100 W 1000 W 16 oh ms 700 W 600 W 600 W

Hi-Z 25 V 500 W 500 W 500 W Hi-Z 70 V 1450 W 140 0 W 1000 W Hi-Z 100 V 2000 W 1000 W 700 W

Amplier output modules (all channels)

Peak output voltage 150 Vpk 142 Vpk 142 Vpk Max output current 30 Apk 30 Apk 30 Apk

Rational Power Management (RPM)

Default voltage limitation (can be lifted with RPM conguration) 145 Vpk 100 Vpk 65 Vpk

Protection features

Amplier platform

Inter Sample Voltage Peak Limiter (ISVPL) Congurable Peak voltage threshold and prole Amplier gain Digital congurable amplier gain 22 - 44 dB

Pilot tone generation and analysis Yes Load impedance analysis Yes Temperature control Temperature regulated fans (front-to-rear airow) and show must go on limitation (ATL, PTL)

Audio Performance (Amplier platform with digital input)

THD + N 20 Hz - 20 kHz for 1 W < 0.05 % THD + N at 1 kHz and 1 dB below clipping < 0.04 % Dynamic range > 112 dB

Channel separation (Crosstalk) at 1 kHz > 70 dB Frequency response (1 W into 8 ohm, 20 Hz - 20 kHz) +/- 0.05 dB

Internal sample rate / Data path 96 kHz / 32 bit oating point Product propagation delay AES 96 kHz / analog input 1.61 / 1.68 ms

Lake processing

Dante Audio Net work

Dante I/O 8 x 8 Network topology / redundancy Flexible topology / Supports Dual redundant networks Sample rates / transport 48, 96 kHz / Uni + Multicast Network latency 0.25, 0.5, 1.0, 2.0, 5.0 ms

Analog inputs

Inputs 4 high quality inputs with Iso-Float™ ground isolation Maximum input / digital reference + 26 dBu / +21 dBu Sampling rate / resolution 96 kHz / 24 bit Input impedance balanced / unbalanced 20 / 10 kOhm

THD + N (typical at 1 kHz unweighted) 0.00022 % THD + N (typical at 20 Hz and 20 kHz unweighted) 0.00033 %

AES Inputs

Inputs 4 AES inputs Supported sample rates / resolution 44.1, 48, 88.2, 96, 176.4, 192 kHz / up to 24 bit Sample rate conversion THD + N 20 Hz - 20 kHz unweighted 0.00003 %

D 40:4L D 20:4L D 10:4L

Share “Total burst power” of the product freely among channels. Any channel can scale up to the “single channel max power”

Current Average Limiter (CAL), Ver y High Frequency Protection (VHF), Direct Current Protection (DC), Short Circuit Protection, Current-Clip Limiter, Voltage Clip Limiter, Temperature protection

D SERIES Lake Operation Manual rev 3.0.1

15. Technical Speciﬁcations

Back panel interface

Analog inputs 4 x Terminal block conne ctors analog input with +, - and ground AES inputs 4 x Terminal block connectors analog input with +, - and ground

Output connectors Ethernet ports 2 x EtherCon RJ45 Lake Controller, Dante controller and/or DLM (3rd party protocol)

Detachable mains cord Detachable locking 3-pin IEC rated at 250 V / 16 A

Front panel user interface

System status indication Channel status indication 3 x tri-color LED per channel. Status indication separated for channel LOAD, AMP, SIGNAL status Mute Per channel touch button for MUTE control and tri-color LED for indication Power Touch button for ON/STANDBY control and tri-color LED for power state indication Select Touch button and LED for bi-directional device software select functionality

Mains Power

Nominal voltage 100 - 240 V AC 50 - 60 Hz Operating voltage 70 - 265 V AC 45 - 66 Hz Mains wall plug Selectable on order

Power supply features

Soft start / Inrush power Ye s Power factor correction > 0.98 for mains power > 300 W

Regulated switch mode power supply (R.SMPS) Ye s Breaker Emulation Limiter (BEL) Yes

BEL max current threshold 15 A 7 A 7 A

Power Average Limiter (PAL) Yes Under Voltage Limiter (UVL) Yes

Mains undervoltage and overvoltage protection and mains glitch tolerance

Dimensions

Rack rail to rear panel W: 483 mm (19”), H: 44 mm (1 U), D: 425 mm (16.7”) Overall depth front-rear support D: 463 mm

Weight Finish

Approvals

D 40:4L D 20:4L D 10:4L

4 x 2 pole Terminal block connectors rated at 100 0 V / 41 A (exceeding amplier capacity) Can take up to 8 mm2 (8.2 AWG) cables

3 x tri-color LED. FRAME, TEMP, PSU for device status indication

CEE 7/7 “Schuko” 230 V / 16 A, NEMA 5-15 125 V / 15 A, BS1363-A 250 V / 13 A, IA16A3 250 V / 16 A, AU/NZ 250 V / 10 A, JP 125 V / 15 A, CPCS-CCC 250 V / 10 A

Yes

8.3 kg (18.3 lbs) 7.9 kg (17.3 lbs) 7.8 kg (17.1 lbs)

Black painted steel chassis with grey painted steel front with detachable grille

CE, ETL (ANSI/UL, CSA), PSE, RCM, BIS, CCC

Note 1): Lab.gruppen burst power (1 kHz, 25 ms burst power @ 150 BPM, 12 dB Crest factor)

All specifications are subject to change without notice.

D SERIES Lake Operation Manual rev 3.0.1

16. Warranty and support

16.1. General

This product is manufactured by Lab.gruppen, and it is warranted to be free from any defects caused by

components or factory workmanship, under normal use and service, for a period of ten (10) years from date of purchase from an authorized Lab.gruppen dealer. If the product fails to perform as specied during the warranty

period, Lab.gruppen will undertake to repair, or at its option, replace this product at no charge to its owner, provided the unit is returned undamaged, shipping prepaid, to an authorized service facility or to the factory. This warranty shall be null and void if the product is subjected to: repair work or alteration by a person other than those authorized by us; mechanical damage including shipping accidents; war, civil insurrection, misuse, abuse, operation with incorrect AC voltage; incorrect connections or accessories; operation with faulty associated equipment; or exposure to inclement weather conditions. Damage due to normal wear and tear is not covered by the warranty. Units on which the serial number has been removed or defaced will not be eligible for warranty service. Lab.gruppen shall not be responsible for any incidental or consequential damages. Lab.gruppen’s responsibility is limited to the product itself. Lab.gruppen takes no responsibility for any loss due to cancellation

of any events, or rent of replacement equipment or costs due to a third party’s or customer’s loss of prot, or any

other indirect cost or losses however incurred. Lab.gruppen reserves the right to make changes or improvements in design or manufacturing without assuming any obligation to change or improve products previously manufactured. This warranty is exclusive, and no other warranty is expressed or implied. This warranty does not affect the customer’s statutory rights.

International Warranties

Please contact your supplier or distributor for this information, as rights and disclaimers may vary from country to country.

16.2. Technical assistance and service

16.2.1. International service

If your Lab.gruppen product requires repair, contact your Lab.gruppen dealer or distributor, visit http://labgruppen.com/support or contact Lab.gruppen by phone or email to obtain details for the nearest authorized service center.

D SERIES Lake Operation Manual rev 3.0.1

16. Warranty and support

16.2.2. Factory service

In the event a Lab.gruppen product requires factory service, you may contact Lab.gruppen’s service department for return instructions and a Return Authorization number.

Please note for product return:

1. Use the original packing.

2. Include a copy of the sales receipt, your name, return address, phone and fax number, email address and description of the defect.

3. Mark the Return Authorization number on the outside of the packing.

Ship the product prepaid to:

Music Group Innovation Sweden AB Faktorvägen 1 SE-434 37 Kungsbacka Sweden Phone: +46 300 56 28 00

service@labgruppen.com www.labgruppen.com

D SERIES Lake Operation Manual rev 3.0.1

Notes

D SERIES Lake Operation Manual rev 3.0.1

Notes

D SERIES Lake Operation Manual rev 3.0.1

labgruppen.com

Lab.gruppen adopts a policy of continuous improvement and product specication is subject to change.

RPM, R.SMPS, PFC, CDM, BEL, UVL, CAFÉ, ESP, ISVPL, Iso–Float, Raised Cosine, MESA EQ, LimiterMax and

LoadLibrary are trademarks of Lab.gruppen AB. All other trademarks remain the property of their respective owners.

Item no. OM–DSERIES–LAKE

Lab Gruppen D 20:4L Operation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual