Page 1
Rev. 1.0.0
Item no. OM–DSERIES–TESIRA
D SERIES
High–Power installation platform
Tesira Variants:
D 200:4T/Ta
D 120:4T/Ta
D 80:4T/Ta
Incorporating technologies from
Operation Manual
Page 2
1. Important safety instructions
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 ampliers)
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 specied by the
manufacturer.
12. Use only with a cart, stand, tripod, bracket, or table specied
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 qualied 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 2004/108/EC and the
requirements of the Low Voltage Directive
2006/95/EC.
Standards applied: EMC Emission
EN55103–1, E3
EMC Immunity EN55103–2, E3, with S/N
below 1% at normal operation level.
Electrical Safety EN60065, Class I
This equipment is tested and listed according 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 sufcient 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
qualied 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 qualié seulment.
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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 qualied
service personnel.
Français: Pour réduire le risque d’incendie ou de choc
électrique, ne pas retirer les vis. Aucune pièce réparable par
l’utilisateur. Coner l’entretien àpersonnel qualié.
3.4. User responsibility
3.4.1. Mains connection t
Your amplier must be connected to a grounded socket outlet.
3.4.2. Speaker output hazard on amplifiers
Ampliers are capable of producing hazardous output
voltages. To avoid electrical shock, do not touch any exposed
speaker wiring while the amplier is operating. The external
wiring connected to the speaker terminals shall be installed
by a qualied person, or ready–made leads or cords of
appropriate capacity shall be used.
As the power output channels on ampliers 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 ceive r.
• 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
Amplier 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 ampliers
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 airow 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 airow
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.
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4. Table of Contents
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 14
8. Signal ow and processing 15
8.1. Signal ow 15
9. Front panel interface 16
9.1. Frame status and control 16
9.2. Channel status and control 16
9.3. Frame select and ID 17
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4. Table of Contents
10. Rear panel interface 18
10.1. Amplier Outputs 18
10.2. RJ-45 Ethernet Connector 18
10.3. RS-232 and GPIO ports 18
10.4. Analog inputs (Tesira analog version only) 21
10.5. Mains connector 21
11. Operation and performance 22
11.1. Operation precautions 22
11.2. Power output performance 22
11.3. Amplier and Load Protection Systems 24
11.4. Power Supply 30
11.5. LoadPilot Load Monitoring 31
12. Tesira processing environment 33
12.1. Introduction 33
13. Tutorial: Basic system conguration 33
13.1. Software installation and rmware update 33
13.2. Network setup 35
13.3. System setup 35
14. Appendix 38
14.1. Faults and warnings 38
14.2. Current draw and thermal dissipation 40
14.3. Maintenance 43
15. Technical Specications 44
16. Warranty and support 46
16.1. General 46
16.2. Technical assistance and service 46
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5. Introduction
5. Introduction
5.1. Welcome
Thank you for choosing the Lab.gruppen D Series for your sound reinforcement needs. We are condent that you
will be pleased with the performance, unique features, conguration 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 conguration and control options available. It is
recommended that you also review all other product documentation to ensure familiarity with the various
conguration and control options.
Thank you again for placing your condence in Lab.gruppen products.
5.2. D Series: Two versions available
D Series is an advanced, high–power installation amplier 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.
Both D Series Versions are available in three output power levels and offer unique power management features.
This operation manual is for use with Tesira versions only, and applies to models at all three output power levels.
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5. Introduction
5.3. Feature summary
5.3.1. Features common to both D Series variants
• Four channels with three levels of total available frame power output: 20000 W, 12000 W and 8000 W
• Rational Power Management (RPM)
• True exibility in allocating power output across each channel to match requirements, for more efcient
use of amplier inventory
• Any channel is capable of delivering up to 5000 W power output from total available power in each frame
• 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 (Conguring Ampliers For the Environment) software incorporates ESP™ (Equipment Specication
Predictor) to assist in design, equipment specication and commissioning
• Features controlled by on–board DSP
• Amplier Gain – Amplier gain is set in the digital domain and controlled via CAFÉ software
• ISVPL™ – The Inter–Sample Voltage Peak Limiter (ISVPL) tailors each channel’s power output to the
characteristics of the connected load
• Load Verication & Performance Monitoring – A comprehensive set of proprietary DSP–based tools
enables load verication and real–time performance monitoring
5.3.2. Features unique to Tesira® DSP and Networking Environment
• Developed and supported by Biamp Systems
• D Series Tesira models fully integrated as high-power output devices
• Channel processing control of Mute, Level and Signal Invert
• Four input channels via Ethernet-based Audio Video Bridging (AVB) network
• Optional four channels of analog input for local input into system or failover
• Power state management with congurable Auto Power Down for ultra-low power draw in sleep state
• GPIO port for further system integration
• Creation of customized control programs in Biamp Canvas software
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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 Tesira hardware platform. Comprehensive information is given regarding installation, connection and
operation of the front panel interface.
D Series Tesira ampliers are designed for conguration and operation using the Tesira software and CAFÉ
software programs. This manual includes a brief tutorial on how to put an amplier into service using Tesira
Software, and it also includes an overview of some features that are implemented via CAFÉ.
For complete information on DSP conguration and operation using the Tesira platform, please refer to the Tesira
documentation available from Biamp Systems at www.biamp.com/products/tesira.
For detailed information on conguration 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 Tesira Quick Start Guide
• AC mains lead (power cable) with Neutrik® powerCON® connector and AC socket plug according to
ordering selection
• Rear brackets for additional 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.
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6. Installation
6.2. Mounting
D Series is made for mounting in 19 inch racks. Four screw holes are available for attachment of the amplier to
the rack’s front rack rail. This device has no top or bottom vents; therefore, units may be stacked directly on top of
one another. Sufcient 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 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
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6. Installation
6.2.2. Mounting front grille
The front grille is shipped on top of the amplier inside the box to protect it during shipping. The front grille adheres
to the amplier 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 airow 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 airow. Make sure an adequate air
supply is provided in front of the D Series device, and that the rear of the device has sufcient 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 signicant 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 airow. 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 amplier 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, conrm that all other
equipment also uses front-to-rear airow for cooling. If this precaution is not observed, there is a risk of
overheating, as units with the reverse airow 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 specied in the Technical
Specications. 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% condent of your competence to replace the mains plug (AC plug), the task should be carried
out by qualied 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.
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6. Installation
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 specied nominal voltage range but has slightly better
efciency at higher voltages. For regions with nominal voltage below 140 V, one could consider connecting the
amplier in a three–phase delta or two phase split–phase conguration.
NOTE: Following connections applicable only for resulting voltage inside the ampliers nominal voltage
range.
Connecting the amplier in three phase delta conguration
In three–phase conguration where the phases are 120 degrees apart, one can connect three balanced loads in a
delta conguration. The connection is made between the phases instead of between the neutral and a phase.
208V
120V
L1
Amp
L2
Amp
L1 L2
N N
Amp
120V
L3
120V
208V
Amp
Amp
Amp
208V
L3
3 phase Y 120V
3 phase delta 208V
Figure 6.4: Three phase delta conguration
Connecting the amplier in a split phase conguration
In two phase split–phase conguration there are two phases separated by 180 degrees. Connecting between the
phases gives double the line voltage.
100V 100V 200V
Amp
L1
Split phase 100V
Amp
L2N
L1 L2
Amp
N
Split phase 200V
Figure 6.5: Two phase split–phase conguration
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.
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7. Product overview
7. Product overview
7.1. Front panel
1
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.
1
Rack ears for 19 inch rack mount
2
Exterior front grille (also air intake and dust lter holder)
3 4 7 8
65
9
11
USER INTERFACE
Unit Status and Control
3
ALARM LED for frame related status indication
4
ACTIVITY LED for amplier’s system activity status
5
STATUS LED for the amplier’s conguration status
6
POWER LED and TOUCH BUTTON for power state indication and control. A single touch of the button
toggles the amplier between ON and SLEEP state
Channel Status and Control
7
LOAD LED for load related status indication
8
AMP LED for amplier related status indication
9
SIGNAL LED for signal related status indication
10
MUTE LED and TOUCH BUTTON for for mute status indication and control
11
SELECT LED and TOUCH BUTTON for selection and indication control between computer software and unit
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7. Product overview
OFF Green Amber Red
Alarm
Device OK N/A
Frame warning/Minor
Tesira fault active
Frame fault/Major
Tesira fault active
Activity
N/A
Device active in an active
system
N/A
Device is part of an inactive
system (audio stopped)
Status
N/A
Device congured and ready
to participate in a system
Device is ready and waiting to
receive a conguration
Device is not ready to receive
a conguration
Power
Mains power not available Device is ON Device in STAND BY Device in SLEEP
Load
Frame/Amp fault active Load OK Load warning active Load fault active
Amp
Frame fault active Amplier channel OK
Amplier channel
warning active
Amplier channel
fault active
Signal
Input signal below present
threshold or Frame/Amp
fault active
Signal above signal
present threshold
N/A Signal clip or limit/fault active
Mute
N/A Not muted N/A Muted
Select
Device not selected Device selected N/A N/A
Table 1 LED/category chart
NOTE: See Faults and warnings for a detailed description of status, faults and warnings associated with each LED.
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7. Product overview
7.2. Rear panel
1 2 3 4
6
5
ANALOG OPTION
1
Amplier Outputs – Terminal block connectors. See Section 10 for connector rating.
2
RJ-45 Ethernet connector for control and Ethernet AVB digital audio network
3
Serial control port on a DB-9 for integration control
4
Terminal block connector for Logic I/O (4 pins of GPIO and a ground)
5
Analog inputs (optional, Tesira analog version only)
6
Mains connector – Detachable Neutrik powerCON. See Section 10 for connector rating.
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8. Signal flow and processing
8.1. Signal flow
The table below depicts the audio signal ow for a D Series Tesira device.
D Series Tesira Amplifier
3 4 5 6 7 8
1
Tesira
free-wire DSP
processing
hosted by
Tesira
servers
2
AVB
Network
Mute Level Invert AmpGain RPM/ISVPL
Mute Level Invert AmpGain RPM/ISVPL
Mute Level Invert AmpGain RPM/ISVPL
Load
Monitoring
Load
Monitoring
Load
Monitoring
8. Signal flow and processing
Mute Invert
Tesira
Environment
Level AmpGain RPM/ISVPL
Amplifier
Platform
Load
Monitoring
Figure 8.1: D Series Tesira Signal Flow Diagram
1
The Tesira system is a free-wire DSP environment where processing features can be designed and distributed
among servers. System IO is designed and managed, and all signal processing is dened, at the server level.
D Series Tesira ampliers are added as high power outputs to the system with audio transported to them via
the AVB network, through an analog connection, or both.
2
AVB is a distributed network of one or more Ethernet AVB-enabled switches that carry both networked audio
and control.
3
Mute block in the Tesira output section
4
Level block in the Tesira output section
5
Invert block in the Tesira output section
6
Amplier gain - Digitally implemented for exact control and management of gain structure
7
ISVPL/RPM - Inter-sample Voltage Peak Limiter is a digitally implemented voltage peak limiter with assignable
proles. Rational Power Management conguration enables exible power sharing of the total available power
across the amplier channels.
8
Load monitoring - Impedance sweeps and LoadPilot monitoring
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9. Front panel interface
9. Front panel interface
9.1. Frame status and control
1 2 5 6
43
7
8
9
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.
1
ALARM LED – for frame related status indication
2
ACTIVITY LED – for amplier’s system activity status
3
STATUS LED – for the amplier’s conguration status
4
POWER LED and TOUCH BUTTON – Provides power state indication and control. Press and hold button to
toggle the amplier between ON and STANDBY state. LED indication given in Table 9.1.
9.2. Channel status and control
5
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.
6
AMP LED – Provides amplier related status indication, including faults and warnings related to temperature,
over-current, clipping and very high frequency.
7
SIGNAL LED – Provides signal related status indication, including no signal and input signal clipping
8
MUTE LED and TOUCH BUTTON – Provides mute status indication and control. A single touch on the mute
button toggles the power channel mute between mute and unmuted states. Mute point is rst in the Tesira
output section for each channel.
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9. Front panel interface
OFF Green Amber Red
Alarm
Device OK N/A
Frame warning/Minor
Tesira fault active
Frame fault/Major
Tesira fault active
Activity
N/A
Device active in an active
system
N/A
Device is part of an inactive
system (audio stopped)
Status
N/A
Device congured and ready
to participate in a system
Device is ready and waiting to
receive a conguration
Device is not ready to receive
a conguration
Power
Mains power not available Device is ON Device in STAND BY Device in SLEEP
Load
Frame/Amp fault active Load OK Load warning active Load fault active
Amp
Frame fault active Amplier channel OK
Amplier channel
warning active
Amplier channel
fault active
Signal
Input signal below present
threshold or Frame/Amp
fault active
Signal above signal
present threshold
N/A Signal clip or limit/fault active
Mute
N/A Not muted N/A Muted
Select
Device not selected Device selected N/A N/A
9.3. Frame select and ID
9
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. In the other direction,
when selecting the unit in a supported computer software view, the LED will indicate the unit is selected by
illuminating.
NOTE: The touch buttons use capacitive touch technology and might be sensitive to large temperature
and humidity variations.
Table 9.1: LED/category chart
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10. Rear panel interface
10. Rear panel interface
1 2 3 4
6
5
ANALOG OPTION
10.1. Amplifier Outputs
The amplier outputs utilize mating Phoenix-type connectors. Connect loudspeaker cables to the mating plug-in
connectors observing polarity (including bridge mode option) as marked on the rear panel connectors. See
Section 15 for connector rating.
10.2. RJ-45 Ethernet Connector
Connects to the network switch and carries AVB audio as well as control and status data to and from the host
computer running Tesira software and/or CAFÉ. The product requires connection to an Ethernet AVB enabled
switch. Cable must be Cat-5e or better, and cable length from amplier to switch (or repeater) must be no more
than 100 meters.
1
2
10.3. RS-232 and GPIO ports
10.3.1. Introduction
Several D Series Tesira control and fault monitoring features can be accessed via the RS232 or GPIO (logic) ports
on the rear panel. These features may be implemented through connection to a Tesira server, or to a compatible
third-party AV control system. The ports are active when the D Series Tesira unit is powered up (ON or STANDBY)
or in sleep mode; the ports are inactive when AC line power is removed manually or by external power sequencers.
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10. Rear panel interface
Pin Function Direction
1
DCD Output
2
RXD Output
3
TXD Input
4
DTR Input
5
GND Ground
6
DSR Output
7
RTS Input
8
CTS Output
9
RI Not used
Shell
GND Ground
Text Command Text Response Description
wake
OK
When in the SLEEP state, transitions to the ON state.
Because this wakes up the Tesira host card from SLEEP, the
Tesira host card will respond with the text response once it
is powered up and ready to receive new commands. This
does nothing if already in the ON or STANDBY states but
still provides a response.
status
See power states below Returns the status of the power state of the Tesira host card.
set power <value>
OK
Transitions to the power state specied by the value. This
text command to turn on the amplier and then use this
command to change the power state.
version
<text>
The version of the power microcontroller rmware, not Tesira
rmware. This is for internal use as it does not provide any
useful information to the user.
10.3.2. Serial Port
3
The RS-232 interface may be used for external control of the power state. The port utilizes a DE-9 jack and
operates at 9600 baud with 8 data bits, 1 stop bit, and no parity bits. These settings cannot be modied.
Pin 5 Pin 1
Pin 6
NOTE: The port is DCE type.
The following table gives the text commands. Each command and response ends with a carriage return <CR>
which is hexadecimal 0x0D. Each command and response is case sensitive.
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10. Rear panel interface
Power State Text Value
SLEEP
0
ON
1
STANDBY
2
Pin Function Description
1
Ground
2
Input
A transition from logic 0 to logic 1 transitions
the power state to ON. A transition from logic
1 to logic 0 transitions the power state to
SLEEP. This is edge triggered.
3
Input Not used
4
Output
A logic 0 when the amplier is in the ON
state and logic 1 otherwise
(STANDBY and SL EEP).
5
Output
A logic 0 when either the amplier or an
audio channel has at least one fault. A logic
1 when there are no faults. Faults detected
by the Tesira application that runs on the
Tesira host card do not apply to this output.
While in SLEEP state, only wake and status commands are available. The Set Power command is available only in
the ON or STANDBY state. In order to set the power state from the SLEEP state, it is necessary to rst wake the
device by using the Wake command.
While in the ON or STANDBY state, an error will be returned as a text response of ERR<CR> if an unrecognized
command or an invalid power value is received. While in the SLEEP state no error is returned.
Following is a list of power states used by Status and Set Power text commands. The text values are ASCII.
10.3.3. GPIO port
4
The rear panel logic connector has four GPIO pins plus one ground pin. It is used for power control and status
monitoring.
Pin 5
I/O 4
Pin 3
I/O 3
Pin 3
I/O 2
Pin 2
I/O 1
Pin 1
GND
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NOTE: A logic 1 is dened as TTL high level and a logic 0 is dened as TTL low level.
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10. Rear panel interface
10.4. Analog inputs (Tesira analog version only)
5
Four analog inputs are available on terminal block connections with clearly marked hot (+), cold (-) and ground
terminals. All inputs are balanced mic or line level input with selectable +48 V phantom power and digitally
controlled input gain. Maximum input and digital reference is +24 dBu and input impedance is 8 k ohm. Sampling
rate is 48 kHz with 24 bit resolution.
The analog inputs can either be used as local inputs to a Tesira AVB system, or as analog failover in case of AVB
network failure.
10.4.1. Analog Failover
Programming of analog failover is set in Tesira software during system conguration. In the Initialization dialog
box, check the Analog Failover box in the Lab.gruppen Amplier Initialization dialog. See Section 13 (System
Setup tutorial) step 4. Also double-check routing of failover channel to output channel in the amplier block DSP
properties, Failover input channel. In the event of the amplier detecting loss of the AVB stream, the amplier
output will failover and take its signal from the local analog inputs according to the Failover input channel routing.
NOTE: In the event of a network failure with amp failover to analog inputs, followed by a power outage,
the amplier will not be able to start up using the analog inputs. The amp requires network connection
to the server to restore settings and continue operation.
10.4.2. Local Analog Inputs
To utilize the analog inputs as local inputs to the AVB network (for connection to blocks in Tesira system), add a
Four Channel Analog Input block to the work area and set the equipment type to Lab.gruppen Amplier. This will
allow the analog audio from the amplier to be streamed to a Tesira SERVER, Server IO or Tesira FORTÉ device for
further processing.
Amplifier
analog inputs
02
Input
4 Channel
10.5. Mains connector
6
Detachable Neutrik powerCON. Connector is rated for 250V/32A. For more information on AC mains connection
please refer to Section 6.4.
01 02
Standard Mixer
8x4
PWR
Lab.gruppen Amplifier
LGAmp1
AMP
OUT 1
OUT 2
OUT 3
OUT 4
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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 200:4T/Ta 4400 W 500 0 W 440 0 W 230 0 W 1150 W 3300 W 4700 W
D 120:4T/Ta 3000 W 3000 W 3000 W 1900 W 950 W 300 0 W 3000 W
D 80:4T/Ta 200 0 W 200 0 W 200 0 W 1500 W 750 W 2000 W 2000 W
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 D Series uses Lab.gruppen’s patented Class TD technology (Tracking Class D) in the output stages, which
couples the efciency of Class D topologies to the sonic purity of Class A/B designs. The primary benet is that
Lab.gruppen’s Class TD works perfectly under all load conditions. The output maintains its at frequency response
even into complex loads with very low nominal impedances. Reliability is very high, and there is no interference with
nearby RF equipment. Superior efciency allows greater power density while minimizing cooling requirements, yet
sound quality matches that of the best Class A/B designs.
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 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 range is also that the smaller models in the range have amplier
channels that can produce the maximum channel power of the largest model. Hence, by using RPM, it is possible
to signicantly scale up a channel from its average, which is 25% of the total available power in the frame. RPM
allocates power up to the total limits of the specic amplier model.
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11. Operation and performance
Desired power can be specied in several domains: burst and peak power; peak and 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 taken together allow total
output higher than the capabilities of the amplier, RPM will reduce actual RPM conguration evenly based on a
proportional reduction in dB. Once applied, the RPM functionality will ensure that the channel is not delivering more
power than specied. The ISVPL limiter algorithm performs the actual limitation. As default, the smaller models in
the range have an RPM conguration detailing an equal shared power allocation cross the channels at a voltage
(default voltage limitation) given in the specication sheet. To prevent the risk of over-allocating the power supply
for varying or incorrect load impedances, RPM has a limitation for the smaller models in the range of the number of
channels that can be lifted above the default voltage limitation.
2000 W
LOW
MIDSUB
HIGH
Figure 11.2: Amp channels power adjusted to match the loudspeaker requirements
RPM can be congured in two modes:
RPM Off: In this mode RPM is disabled and power is shared equally among the channels. The default voltage
limitation is in place for all channels.
RPM ON: The CAFÉ software allows users to create an advanced custom power allocation scheme. Additional
information is available in documentation supplied with the CAFÉ software download.
CAFÉ with ESP: CAFÉ (Conguring Ampliers For the Environment) is a dedicated software application for
Windows and OSX that provides tools for system planning, specication and commissioning. CAFÉ incorporates
the Equipment Specication Predictor (ESP), a software module that examines SPL and speaker requirements
for a project and generates requirements for output power on an amplier and system level. ESP will generate a
custom RPM conguration for optimizing the power allocation within the frame. For more information on CAFÉ and
ESP, please consult the documentation supplied with the CAFÉ software download.
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11. Operation and performance
11.3. Amplifier and Load Protection Systems
The D Series is equipped with a comprehensive set of protection circuits. If operating conditions become
sufciently extreme that any of these circuits become active, indication is provided by amber or red LEDs on the
front panel, and by text notications in the Tesira software and CAFÉ software. Refer to Section 14.1 for more
information on warnings and faults.
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 dened 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 proles for limiting optimization for a specic frequency band and personal preference. The
proles 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 proles optimized for the different
frequency bands.
11.3.1.1. Low Distortion Profiles
• Universal – The universal prole 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 prole 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 proles do not use the adaptive release time feature. High SPL proles optimized for high frequencies
use less of the look–ahead delay peak–rounding feature; this feature is used most in the Sub prole and least the
HF prole.
• Sub – The Sub prole is optimized for frequencies between 20 – 200 Hz
• LF – The LF prole is optimized for frequencies between 20 – 1200 Hz
• MF – The MF prole is optimized for frequencies between 300 – 6000 Hz
• HF – The HF prole is optimized for frequencies above 1 kHz
Table 11.3 shows the theoretical maximum output power for a given load impedance and ISVPL setting.
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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 2742 183 0 915 458
101 2550 1910 12 75 638 319
83 172 2 1290 861 431 215
70 1225 918 613 306 153
56 784 587 392 196 98
47 552 414 276 138 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
The ISVPL threshold may be set at any level between 17.8 V and 600 V in the CAFÉ software.
D Series ampliers 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 Channel for the speaker’s maximum capability, and the setting remains cross-compatible with all D Series
Tesira ampliers.
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 prole.
CPL activity is shown by amber or red indication on Amp LED of the affected output channel and a corresponding
text description in Tesira 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.
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11. Operation and performance
11.3.3. Power Average Limiter (PAL)
The Power Average Limiter Active warning (PAL Active) will be displayed when the power supply’s maximum rated
design parameters are reached. When this warning is displayed, gain limiting is being applied to the signal and the
ISVPL threshold is lowered accordingly.
PAL activity is shown by PSU amber LED indication and a corresponding text description in Tesira and CAFÉ
software programs. Refer to Section 14.1 for more information on warnings and faults.
11.3.4. Breaker Emulation Limiter (BEL™)
D Series ampliers are powerful devices that can draw a considerable amount of current from the mains supply.
The BEL models the temperature in the external breaker and limits the mains current to prevent the breaker
from tripping. The BEL can be congured with both a breaker prole and a nominal current value. The nominal
current value can be set from 5 to 32 Arms. The different models have different maximum current capabilities as
specied in the specication sheet. Also, the smaller models can be congured all the way up to maximum user
range. When the nominal current is set above the model’s capabilities, the actual current is set to the maximum
capabilities of the unit. Therefore, the nominal current can be set for the application and the conguration remains
cross-compatible with all the models. There are three different proles available for selection:
• Conservative – The conservative prole allows no momentary current above the congured threshold.
• Fast – The fast prole models the time constant of the trip–curve corresponding to a fast breaker. It momentarily
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 be reduced below the threshold to enable the breaker to cool down.
• Universal – The universal prole models the time constant of the trip–curve corresponding to a slow breaker. It
momentarily allows current above the threshold for a longer time, leading to an increased modeled temperature.
For the limiter to disengage, the current has to be reduced below the congured current for the breaker to
cool down.
The BEL is congured manually with the Tesira and CAFÉ software. CAFÉs ESP design aid can also predict the
current consumption, with the exact speaker requirements, and propose a safeguarding BEL conguration.
11.3.5. Under Voltage Limiter (UVL™)
D Series devices 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 shut down. The mains supply is continually monitored and
when sufcient voltage returns the power supply 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
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11. Operation and performance
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 LED of the affected output channel and a corresponding text description in Tesira and CAFÉ
software programs. Refer to Section 14.1 for more information on warnings and faults
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 limiter in conjunction with the selected ISVPL prole.
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
11.3.8.1. Overview
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 the
power supply and DSP areas. The temperature protection scheme is designed to let the amplier to 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 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.
11.3.8.2. Power Output Channels
A power output channel temperature warning or fault is indicated by the Amp LED for that channel.
• A warning is indicated by a static amber LED
• Amplier Temperature Limit (ATL) is indicated by an amber LED
• A fault is indicated with a static red LED
An event report is sent to the Tesira 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.
When an amplier output channel reaches the temperature warning threshold, the Amp channel Temperature
Limiter (ATL) is engaged, reducing power output to avoid amp channel protection (muting). Limiting is removed
when temperature falls below the warning threshold.
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11. Operation and performance
11.3.8.3. Power Supply / DSP
A power supply (PSU) or DSP temperature warning or fault is indicated by the Alarm 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
When the power supply reaches the temperature warning threshold, the Power supply Temperature Limiter (PTL)
is engaged. Total amplier output power is reduced to avoid power supply fault protection (muting of all channels).
Limiting is removed when the temperature falls below the warning threshold.
11.3.9. DC Protection
DC protection is implemented 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. In this
instance the channel’s Amp LED will illuminate red and a service channel fault will be registered in the Tesira and
CAFÉ status views.
NOTE: The power output channel modules are independent of the input voltage. This 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 will mute for approximately
six seconds before being re-tested. When continuous VHF signal stops, the output unmutes and the amplier
returns to 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.
100
90
80
70
60
50
40
30
Voltage [Vrms]
20
10
0
0 5
Trigger voltage
10 15 20 25 30
Frequency [kHz]
Fig 11.4: VHF Protection Frequency Sensitivity
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11. Operation and performance
The attack time of the VHF protection circuitry also changes with frequency, becoming shorter at higher
frequencies. This is shown in Figure 11.5.
1400
1200
1000
800
600
Time [ms]
400
20
200
0
0 5
Full output voltage
10 15 20 25 30
Frequency [kHz]
Fig 11.5: VHF Protection Attack Time Variations
The VHF protection circuit is NOT a limiter and does not alter the amplier’s frequency response. It is implemented
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 one (or more) of the output channels’
showing steady red. The adjacent fault message will show VHF FAULT. It is also reported as a fault via the control
network. Refer to Section 14.1 for more information on warnings and faults.
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 Tesira and CAFÉ software programs. Refer to Section 14.1 for more
information on warnings and faults.
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 Tesira and CAFÉ software programs.
In the extreme event of simultaneous low mains voltage supply and high power demand, the amount of incoming
energy may not be sufcient for continued operation. The power supply will then be forced to shut down. This
condition is a power protect fault, indicated with a red LED and associated error messages registered in Tesira and
CAFÉ software programs.
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11. Operation and performance
11.3.13. Mains anomaly protection
D Series ampliers incorporate several features to ensure continuous operation in case of irregularities in the AC
mains service.
Over–voltage – If the power supply detects mains voltage above 400 V peak or 270 V RMS, it will enter protective
shut down mode. The amplier will auto–restart if the condition clears. Fault will be indicated by a red LED and
associated error messages will register in Tesira and CAFÉ software programs.
Under–voltage – If the power supply detects mains voltage of less than 65 V, it will enter protective shut down
mode. The amplier will auto–restart if the condition clears. Fault will be indicated by a red LED and associated
error messages will register in Tesira and CAFÉ software programs.
Mains instability – If the power supply detects protracted instability in the AC mains, it will enter protective
shut down mode. The amplier will auto–restart if the condition clears. Fault will be indicated by a red LED and
associated error messages will register in Tesira 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 Tesira and CAFÉ software
programs. The power supply and other product functions will 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 stage at all times, allowing the amplier to exhibit
consistent transient response and a clean LF response.
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 congurations. 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 ampliers 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. Alternatively, the capacity of the mains supply should be increased.
NOTE: If insufcient power is available to allow simultaneous power–up, then there is probably
insufcient capacity for full power output during operation. It is recommended that additional capacity is
added to the mains power distribution system.
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11. Operation and performance
11.5. LoadPilot Load Monitoring
11.5.1. Introduction
LoadPilot is a feature in D Series ampliers 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 ampliers can be certied 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
amplier. 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
amplier’s output channels with a maximum total cycle time of around 20 seconds.
LoadPilot is implemented and congured in the CAFÉ software. Monitoring status and fault indication are displayed
on the front panel and in CAFÉ software.
LoadPilot may be congured with the automatic calibration or through a manual advanced mode, depending on
monitoring requirements and characteristics of the connected loudspeaker loads.
11.5.2. Automatic calibration
11.5.2.1 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 amplier is On. It does not function while the amplier is in
Standby.
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11. Operation and performance
11.5.3. Manual configuration
11.5.3.1. Functional description
Manual conguration 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 conguration 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 unstable at a certain frequency. Stability needs to be veried 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 sufciently
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 insufcient. 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 cable impedance is less than 33% of total impedance presented by the
load and 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
conguration of LoadPilot, additional steps 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 conguration of LoadPilot is implemented in CAFÉ versions 1.1.0. and later. For detailed
information on manual conguration 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.
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12. Tesira processing environment
11.5.4. Indication
The LoadPilot feature constantly monitors the impedances at the two given pilot tone frequencies and compares
these 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 indicating 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 signicantly above upper threshold. Most likely
corresponding to loss of the load.
• Short circuit fault – LoadPilot analysis below short circuit threshold.
12. Tesira processing environment
12.1. Introduction
D Series Tesira variants integrate seamlessly into the Biamp Tesira network and processing environment,
functioning as high power amplication devices. For detailed information on the Tesira processing environment,
please refer to the relevant information available from Biamp Systems at www.biamp.com
13. Tutorial: Basic system configuration
This section will describe how to get started with associated software and set up a basic system for operation.
13.1. Software installation and firmware update
13.1.1. Tesira Software
1. Download Tesira Software from biamp.com: www.biamp.com/products/tesira/downloads.aspx. Locate the
Software and Firmware section and download the latest version of Tesira software.
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.
3. When executing the application you will be prompted to obtain a license. Biamp license their software at no
charge. Follow instructions to install. You can continue working for a limited period while waiting for the
license code.
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13. Tutorial: Basic system configuration
13.1.2. Firmware update
The rmware for the D Series amplier is contained within the Tesira server. Potential rmware updates of the
D Series ampliers are managed by the Tesira servers.
Update Tesira server rmware
1. Download Tesira Firmware from biamp.com: www.biamp.com/products/tesira/downloads.aspx. Locate the
Software and Firmware section and download the latest version of Tesira rmware.
2. In Tesira software, click the Device Maintenance button or go to System > Network > Perform Device >
Maintenance.
3. Click the Update Firmware button.
4. Browse to the rmware update le, which should be a .tfa le. You may need to unzip the downloaded le to
obtain the .tfa le.
5. Select all of the devices that you’d like to update, or click Select All to update all devices. Click OK to begin
the update.
6. Allow up to 20 minutes for the rmware update to complete. You may notice the server(s) rebooting multiple
times throughout the update.
NOTE: Do not remove power or interrupt network connectivity during the update. Updating rmware over a WiFi
connection or via a remote internet connection is not recommended.
Update D Series amplier rmware
The rst time a D Series amplier is connected to an active Tesira system following a server rmware update, the
server will automatically update the rmware of the amplier when needed.
NOTE: Do not remove power or interrupt network connectivity during the update.
CAFÉ software
1. Download the latest CAFÉ software 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.
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13. Tutorial: Basic system configuration
13.2. Network setup
Network connections/topology
The following diagram shows a typical setup with Tesira software running on a PC. A Tesira server has separate
network ports for control and AVB but D Series has these combined into one port.
BIAMP SYSTEMS
assembled in the USA
www.biamp.com
SERVER-IO
100 - 240V~
50/60Hz 5.5 - 2.3A
S/N
Serial 1
Serial 2
SNC-1
Logic I/O
+5V
4
3
2
1
Primary
Primary
Secondary
Secondary
US: 6RMBR00BSTC-2, Complies with FCC Part 68
10
IC: 3184A-STC2
N24138
N24138
4HW3
1234567891011121314
GREEN connectors = INPUTSORANGE connectors = AEC INPUTSBLUE connectors = ANC INPUTSBLACK connectors = OUTPUTS
Control
AVB
Control/AVB
Network conguration
Tesira devices are congured by default to obtain IP addresses automatically. The Tesira device will receive an
IP address automatically from a DHCP server (if present) or assign itself an IP address in the Link local range
(169.254.1.0 through 169.254.254.255). If a computer is congured the same way (which should be default on
modern operating systems), it will reside in the same subnet as the devices and communication can be established.
13.3. System setup
The setup guide describes how to get a simple system up and running, connect audio through to the amplier,
and make basic congurations of the amplier. This guide assumes you have a Tesira FORTÉ or Tesira Server
IO with an analog input card, a D Series amplier and an AVB switch. To pass audio through the system you
will also need a signal source and a speaker. The server, AVB switch and amplier must be connected to the
network and AC power.
Create Tesira system conguration
1. Open Tesira software
2. Select Labgruppen amplier from the Object bar > I/O Blocks
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13. Tutorial: Basic system configuration
3. Click somewhere in the layout window to place an amplier in the system
4. Select the correct model of amplier on the initialization dialog and click OK
5. Select Input from the Object bar > I/O Blocks
6. Click somewhere in the layout window to place an input block in the system. Select 4 channels from the
dropdown in the initialization dialog and click OK. Leave Equipment Type as Autocongure (default) for
this example
7. Connect the inputs with the amplier by drawing lines between the I/O terminals of the two blocks according
to the gure
Compile the system
1. Compile your system by hitting the compile button in the standard Bar or select System > Compilation >
Compile active partition
NOTE: With some system congurations using TesiraFORTÉ, you may see an Output Window with a
notice in red that “…there are no TesiraFORTÉ blocks in the layout.” This requires changing the server
mode. From the top menu, navigate through Tools > Options > Document Setting. Click on Server
Mode and select “Both Tesira Servers and TesiraFORTÉ.”
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13. Tutorial: Basic system configuration
Assign physical units to the imaginary units in the system design
IMPORTANT NOTE: If the server is already running a previous conguration, or if you are unsure of its state,
you should check to see if it needs to reset it to become available for the current conguration. Click the Device
Maintenance button or go to System > Network > Perform Device Maintenance. If the server is already assigned,
a System ID and System Description (if entered) will show for the server. To reset, select the server and click the
Reset Device button to the left. If the cells are blank, as shown below, proceed with step 1.
1. Enter the Equipment Table via System > Equipment Table
2. For both the server and the amplier, click the cell in the serial number or host name column and select your
unit from the dropdown menu. Click OK
NOTE: If your online devices are not available in the equipment table please recheck “IMPORTANT
NOTE” above.
Send the conguration to the system
1. Click the Send conguration button on the network bar or select System > Network > Send conguration
2. Enter a system description or leave to default and click OK
3. Click Yes to start system audio
4. Click Start All in the Manage partition audio popup. Click close
Your system is now up and running and passing audio. If you do not hear audio, the amplier may be on standby.
Double click on the amplier icon and click on the power button at top right.
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14. Appendix
Category/Type Name On screen text Description Action
ALARM
Warning
Minor Tesira fault active in the
device
Warning
Under Voltage Limit UVL ACTIVE
The Under Volt age limiter is active as the
mains supply is approaching the lower
end of the device´s operational voltage.
Output power is decreased to ensure
mains distribution does not c ollapse
Increase mains distribution
stiffness or reduce output
power to avoid limiting
Warning
Power Average Limit PAL ACTIVE
Amplier 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 congured
nominal current and prole
Improve mains distribution
and update BEL
conguration or reduce
output power to avoid
limiting
Warning
Power supply
Temperature Limit
PTL ACTIVE
Amplier 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 ACT IV E
Amplier channel is reducing output
power to avoid amplier channel
temp fault protection
Improve cooling 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
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
Upgrade power
supply rmware
UPGRADE PSU
Power supply rmware version not
compatible with amplier
Upgrade amplier rmware
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
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 servicing
Fault
Major Tesira fault active
in the device
Fault
Audio Fault AUDIO FAULT Internal audio inter face not functioning
Restart device; if not
cleared it needs servicing
Fault
Need service NEED SERVICE: 1-8 Power supply internal error
Restart device; if not
cleared it needs servicing
Fault
Temperature fault power supply TEMP FLT: PSU
Power supply temperature reached
internal protection limit
Automatically restarts when
cooled down
14. Appendix
14.1. Faults and warnings
The “On Screen Text” given below is displayed by hovering over the corresponding status LEDs (when amber or
red) shown in CAFÉ online views.
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Category/Type Name On screen text Description Action
Fault
Temperature fault DSP area T EMP FLT: DSP D SP area reached critical temperature
Improve cooling or
reduce power
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 FA ULT Internal power supply fault
Check mains distribution/
connection.Restart device;
if not cleared it needs
servicing
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 PR OT
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
Under speaker count UNDER SPKR CNT Both LoadPilot tones above thresholds Check load or calibration
Warning
Speaker short SPKR SHORT Both LoadPilot tones below thresholds Check load or calibration
Warning
Speaker damaged SPKR DAMAGED
One LoadPilot tone is above or
below threshold
Check load or calibration
Fault
No load NO LOAD
At least one LoadPilot tone above
measurable area or signicantly
above thresholds
Check load or calibration
Fault
Short circuit SHORT CIRCUIT
LoadPilot or full frequency analysis
below shor t threshold or
hardware shor t protection
Check load or calibration
AMP
Warning
Temp warning ampli er channel TEMP WARN
Amplier channel is
approaching critical
Improve cooling or reduce
output power to avoid
temperature becoming
critical
Fault
Temp Fault amplier channel T EM P FA ULT
Amplier channel has reached critical
temperature and has shut off for
protective reasons
Automatically unmutes
when cooled down
Fault
Service channel SERVICE CH. Ampli er channel is da maged
Restart device; if not
cleared needs servicing
SIGNAL
Fault
Current average limiter CAL ACT IVE
Average current on amplier above
safe operating level
Reduce output current
to avoid limiting
Fault
Very high frequency fault VH F FAULT Amplier channel protection Check input signal
Clip
Current clip CURRENT CLIP
Amplier channel reached
current limit
Reduce output power
to avoid limiting
Clip
Voltage clip VOLTAGE CLIP Amplier reached voltage limit
Reduce output power
to avoid limiting
14. Appendix
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14. Appendix
D SERIES 80:4
Level Load
Rated power
per channel
Line Cu rrent
Power
Factor
Meas ured Powe r (W) Thermal Dissipation
(A) (%) In Out Dissipated BTU/hr kCal/ hr
Main s Voltage 10 0 VAC, 30 A
Sleep (Tesira) 0.2 31 6 0 6 20 5
Stan dby (Lake) 0.3 43 11 0 11 36 9
Standby (Tesira) 0.4 47 16 0 16 56 14
Power on , Idling 2.1 99 204 0 204 696 17 5
Pink Ps eudo
Noise
16 Ω / Ch. 750 10 .1 99 981 375 607 2 070 522
8 Ω / Ch. 150 0 15.3 99 14 92 749 74 3 2534 639
4 Ω / Ch. 2000 14.9 99 150 2 652 850 2900 731
2.67 Ω / Ch. 2000 15.3 99 15 39 625 914 3120 787
2 Ω / Ch. 2000 15.2 99 153 8 560 978 3337 841
LoadPilot
Sine 20 kHz
8 Ω / Ch. 2.2 98 2 11 0 211 720 181
Main s Voltage 120 VAC, 3 0 A
Sleep (Tesira) 0.2 25 6 0 6 21 5
Stan dby (Lake) 0.3 35 11 0 11 37 9
Standby (Tesira) 0.3 42 17 0 17 57 14
Power on , Idling 1.8 98 202 0 202 689 174
Pink Ps eudo
Noise
16 Ω / Ch. 750 8.0 99 954 375 579 197 7 499
8 Ω / Ch. 150 0 12. 6 99 14 76 749 727 24 80 625
4 Ω / Ch. 2000 14.4 99 173 9 8 17 923 3148 794
2.67 Ω / Ch. 2000 14.7 99 17 80 766 1014 34 61 873
2 Ω / Ch. 2000 15.2 99 183 9 739 110 1 3755 947
LoadPilot
Sine 20 kHz
8 Ω / Ch. 1.8 98 211 0 211 719 181
Main s Voltage 20 8 VAC, 17.3 A
Sleep (Tesira) 0.3 10 7 0 7 23 6
Stan dby (Lake) 0.3 17 11 0 11 39 10
Standby (Tesira) 0.4 23 17 0 17 59 15
Power on , Idling 1.1 91 197 0 197 673 17 0
Pink Ps eudo
Noise
16 Ω / Ch. 750 4.6 99 9 27 375 552 18 84 475
8 Ω / Ch. 150 0 7.1 99 14 36 749 687 2345 5 91
4 Ω / Ch. 2000 9. 3 100 195 5 1000 955 3260 822
2.67 Ω / Ch. 2000 9.8 100 2087 10 03 1084 3698 933
2 Ω / Ch. 2000 10.3 100 218 2 1001 118 1 4030 1016
LoadPilot
Sine 20 kHz
8 Ω / Ch. 1.1 92 204 0 20 4 695 175
Main s Voltage 23 0 VAC, 16 A
Sleep (Tesira) 0.3 11 7 0 7 24 6
Stan dby (Lake) 0.3 17 12 0 12 39 10
Standby (Tesira) 0.3 23 17 0 17 59 15
Power on , Idling 1.0 89 19 3 0 19 3 660 16 6
Pink Ps eudo
Noise
16 Ω / Ch. 750 4.2 99 948 375 573 195 7 493
8 Ω / Ch. 150 0 6.4 99 14 43 74 9 694 2369 597
4 Ω / Ch. 2000 8.1 99 1907 1000 906 3092 780
2.67 Ω / Ch. 2000 8.7 10 0 2052 1003 104 9 3580 903
2 Ω / Ch. 2000 9. 4 100 2200 1000 12 01 4096 1033
LoadPilot
Sine 20 kHz
8 Ω / Ch. 1.0 89 20 4 0 20 4 695 175
14.2. Current draw and thermal dissipation
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D SERIES 120:4
Level Load
Rated power
per channel
Line Cu rrent
Power
Factor
Meas ured Powe r (W) Thermal Dissipation
(A) (%) In Out Dissipated BTU/hr kCal/ hr
Main s Voltage 10 0 VAC, 30 A
Sleep (Tesira) 0.2 34 7 0 7 24 6
Stan dby (Lake) 0.3 43 12 0 12 40 10
Standby (Tesira) 0.3 45 13 0 13 45 11
Power on , Idling 2.3 98 219 0 219 74 9 18 9
Pink Ps eudo
Noise
16 Ω / Ch. 950 10 .8 99 10 59 475 584 19 94 503
8 Ω / Ch. 1900 19.2 99 186 8 949 919 313 6 7 91
4 Ω / Ch. 3000 24.6 99 2389 12 00 118 9 4057 10 23
2.67 Ω / Ch. 3000 25.7 99 2551 115 1 140 0 4776 120 4
2 Ω / Ch. 3000 25 .8 99 2576 1113 14 63 4992 125 9
LoadPilot
Sine 20 kHz
8 Ω / Ch. 2.4 98 231 0 2 31 789 19 9
Main s Voltage 120 VAC, 3 0 A
Sleep (Tesira) 0.2 28 7 0 7 25 6
Stan dby (Lake) 0.3 36 11 0 11 39 10
Standby (Tesira) 0.3 39 13 0 13 46 12
Power on , Idling 1.9 98 215 0 215 734 18 5
Pink Ps eudo
Noise
16 Ω / Ch. 950 8.8 99 1035 475 560 1910 482
8 Ω / Ch. 1900 15 .1 99 176 5 949 8 15 278 3 702
4 Ω / Ch. 3000 24.0 99 2 817 150 2 1315 4487 1131
2.67 Ω / Ch. 3000 24.5 99 2894 1437 1456 4969 125 3
2 Ω / Ch. 3000 25 .1 99 2980 13 61 1619 5524 1393
LoadPilot
Sine 20 kHz
8 Ω / Ch. 2.0 97 226 0 226 7 73 195
Main s Voltage 20 8 VAC, 17.3 A
Sleep (Tesira) 0.3 12 8 0 8 28 7
Stan dby (Lake) 0.3 18 12 0 12 42 11
Standby (Tesira) 0.4 20 14 0 14 48 12
Power on , Idling 1.1 91 211 0 211 720 182
Pink Ps eudo
Noise
16 Ω / Ch. 950 4.9 99 1001 475 526 17 95 453
8 Ω / Ch. 1900 8.7 99 176 6 949 816 2786 702
4 Ω / Ch. 3000 13.3 99 2687 15 01 1186 4046 1020
2.67 Ω / Ch. 3000 14.0 99 28 47 15 00 1346 4594 11 58
2 Ω / Ch. 3000 14.8 99 3046 150 0 154 6 5276 1330
LoadPilot
Sine 20 kHz
8 Ω / Ch. 1.2 93 221 0 2 21 754 19 0
Main s Voltage 23 0 VAC, 16 A
Sleep (Tesira) 0.3 13 12 0 12 40 10
Stan dby (Lake) 0.3 18 13 0 13 43 11
Standby (Tesira) 0.3 20 14 0 14 49 12
Power on , Idling 1.0 90 205 0 205 698 176
Pink Ps eudo
Noise
16 Ω / Ch. 950 4.7 99 10 03 475 529 180 3 455
8 Ω / Ch. 1900 7.7 99 173 4 949 784 2676 675
4 Ω / Ch. 3000 11. 4 99 2562 1501 10 61 3 620 913
2.67 Ω / Ch. 3000 12. 8 99 2873 1499 13 74 4688 118 2
2 Ω / Ch. 3000 13 .1 99 2993 150 0 149 3 5095 128 5
LoadPilot
Sine 20 kHz
8 Ω / Ch. 1.0 90 214 0 2 14 730 18 4
14. Appendix
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14. Appendix
D SERIES 200:4
Level Load
Rated power
per channel
Line Cu rrent
Power
Factor
Meas ured Powe r (W) Thermal Dissipation
(A) (%) In Out Dissipated BTU/hr kCal/ hr
Main s Voltage 10 0 VAC, 30 A
Sleep (Tesira) 0.2 34 8 0 8 27 7
Stan dby (Lake) 0.3 52 17 0 17 58 15
Standby (Tesira) 0.4 48 19 0 19 63 16
Power on , Idling 2.4 97 235 0 235 802 202
Pink Ps eudo
Noise
16 Ω / Ch. 115 0 12.1 99 119 2 588 604 2061 5 20
8 Ω / Ch. 2300 22.3 99 2198 1174 102 4 3493 881
4 Ω / Ch. 4400 29.2 99 2853 14 78 1375 46 91 11 83
2.67 Ω / Ch. 5000 29.2 99 2862 13 99 1463 49 91 125 9
2 Ω / Ch. 4400 29 .1 99 2826 1355 1472 5022 1266
LoadPilot
Sine 20 kHz
8 Ω / Ch. 2.5 97 236 0 236 807 203
Main s Voltage 120 VAC, 3 0 A
Sleep (Tesira) 0.2 30 8 0 8 28 7
Stan dby (Lake) 0.3 48 17 0 17 58 15
Standby (Tesira) 0.4 43 19 0 19 65 16
Power on , Idling 2.0 97 227 0 227 775 195
Pink Ps eudo
Noise
16 Ω / Ch. 115 0 12.0 99 11 80 588 593 2023 510
8 Ω / Ch. 2300 18. 4 99 2 144 11 74 970 3 310 835
4 Ω / Ch. 4400 30.0 99 3457 18 96 1561 5326 1343
2.67 Ω / Ch. 5000 29.5 99 3439 175 2 168 7 5756 1451
2 Ω / Ch. 4400 29.9 99 3495 166 5 18 30 6245 1575
LoadPilot
Sine 20 kHz
8 Ω / Ch. 2.0 97 232 0 232 790 199
Main s Voltage 20 8 VAC, 17.3 A
Sleep (Tesira) 0.3 30 9 0 9 30 8
Stan dby (Lake) 0.3 27 18 0 18 60 15
Standby (Tesira) 0.4 25 19 0 19 65 16
Power on , Idling 1.2 92 222 0 222 757 191
Pink Ps eudo
Noise
16 Ω / Ch. 115 0 5.7 99 115 1 588 564 19 23 4 85
8 Ω / Ch. 2300 10. 2 99 2055 11 74 8 81 3005 758
4 Ω / Ch. 4400 16.2 99 3286 1948 133 8 4565 11 51
2.67 Ω / Ch. 5000 15.6 99 3 171 175 2 1419 4843 1221
2 Ω / Ch. 4400 16.0 99 3253 1665 158 9 542 0 136 7
LoadPilot
Sine 20 kHz
8 Ω / Ch. 1.2 92 229 0 229 780 19 7
Main s Voltage 23 0 VAC, 16 A
Sleep (Tesira) 0.3 14 9 0 9 31 8
Stan dby (Lake) 0.3 23 18 0 18 61 15
Standby (Tesira) 0.4 24 19 0 19 66 17
Power on , Idling 1.2 92 222 0 222 757 191
Pink Ps eudo
Noise
16 Ω / Ch. 115 0 5 .1 98 113 4 588 546 18 63 470
8 Ω / Ch. 2300 9.2 99 2053 1174 879 2999 756
4 Ω / Ch. 4400 15.9 99 3529 2109 1420 4845 1222
2.67 Ω / Ch. 5000 16.0 99 3564 193 5 1630 5561 140 2
2 Ω / Ch. 4400 16.0 99 3577 1856 17 22 5 875 14 81
LoadPilot
Sine 20 kHz
8 Ω / Ch. 1.1 90 228 0 228 777 19 6
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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 airow 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 qualied 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.
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15. Technical Specifications
15. Technical Specifications
General
Processing / Network Tes ira
Number of amplier 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 1900 W 1500 W
16 ohms 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 output power single channel (al l models)
2 ohms 4400 W
2.67 ohms 5900 W
4 ohms 4600 W
8 ohms 2300 W
16 ohms 1150 W
Hi-Z 70 V 3300 W
Hi-Z 100 V 4700 W
Amplier output mo dules (all models, all channels)
Peak output voltage 194 V
Max output current 67 A
Rational Power Management (RPM) Regardless of model, any channel has potential to deliver the max single channel output power
Default voltage limitation (can be lifted with RPM conguration) 194 V 175 V 155 V
Protection features Current Average Limiter (CAL), Very High Frequency Protection (VHF), Direct Current Protection (DC),
Amplier platform
Inter Sample Voltage Peak Limiter (ISVPL) Congurable Peak voltage threshold and prole
Amplier gain Digital congurable amplier 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 (Amplier platfo rm 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 (Cros stalk) 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 (straight path analog server input -> amp) 3.857 ms / 185 samples @ 48 kHz
®
Tes ir a
D Series Tesira® system integration Tes ira® expander class device with full integration of amplier conguration and amplier surveillance
Device swap Host name hot swap with full conguration transfer
Auto power down Congurable auto power down to ultra low consumption SLEEP state
Channel processing Mute, Level, Signal invert
AVB Audi o Netwo rk
AVB I/O 4 x 4
Sample rates / transport 48 kHz / Unicast
Network latency Congurable 1 or 2 milliseconds
Optional 4 channels analog input s (included in the Ta versions)
Usage Congurable as Tesira
Balanced mic or line level input + 48 V phantom power and digitally controlled input gain
Maximum input and digital reference + 24 dBu
Sampling rate / resolution 48 kHz / 24 bit
Input impedance 8 kOhm
Frequency response (20 Hz - 20 kHz @ 4 dBu) +/- 0.25 dB
THD + N (20 Hz - 20 kHz @ 0 dB gain + 4 dBu in) 0.006 %
Dynamic range (20 Hz - 20 kHz, 0 dB) > 108 dB
Cross talk (20 Hz - 20 kHz @ 0 dB gain + 4 dBu in) > 85 dB
1)
1)
D 200:4T/Ta D 120:4T/Ta D 80:4T/Ta
®
by Biamp / AVB Tesi ra® by Biamp / AVB Tes ira® by Biamp / AVB
(1 channel on D 80:4, 2 channels on D 120:4)
Short Circuit Protection, Current-Clip Limiter, Voltage Clip Limiter, Temperature protection
Yes
®
system inputs or analog failover
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15. Technical Specifications
Back panel user interface
Optional analog inputs 4 x Terminal block connectors mic/line level analog input with +,- and ground
Output connectors
Ethernet ports 1 x RJ45 Tesira
General purpose I/O Local GPIO for power state management and amplier surveillance
Detachable mains cord Neutrik PowerCon rated at 250 V / 32 A
Front panel user interface
System status indication 3 x tri-color LED. ALARM, ACTIVITY, STATUS for Tesira
Channel status indication 3 x tr-color LED per channel. Status indication separated for channel LOAD, AMP, SIGNAL status
Mute Per channel touch button for MUTE control and bi-color LED for indication
Power Touch but ton for ON/SLEEP 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 su pply 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) Congurable cur rent threshold and breaker prole
BEL max current threshold 32 A 25 A 15 A
Power Average Limiter (PAL) Yes
Under Voltage Limiter (UVL) Yes
Mains undervoltage and overvoltage prote ction and
mains glitch tolerance
D 200:4T/Ta D 120:4T/Ta D 80:4T/Ta
4 x 2 pole Terminal block connectors rated at 100 0 V / 76 A (exceeding amplier capacity)
Can take up to 16 mm
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
2
(6 AWG) cables
®
Control, AVB networked Audio
®
system status and Device STATUS indication
Dimensions
Rack rail to rear panel W: 483 mm (19”), H: 88 mm (2 U), D: 424 mm (16”)
Overall all depth front-rear suppor t D: 463 mm
Weight
Finish
Approvals
Note 1): Lab.gruppe n burst power (1 kHz, 25 ms burst power @ 150 BPM, 12 dB Crest factor)
All specifications are subject to change without notice.
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 (ANSI/UL, CSA), PSE, RCM
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16. Warranty and support
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 six (6) years from date of
purchase from an authorized Lab.gruppen dealer. If the product fails to perform as specied 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 prot, 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.
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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:
Lab.gruppen AB Faktorvägen 1
SE-434 37 Kungsbacka
Sweden
Phone: +46 300 56 28 00
Fax: +46 300 56 28 99
service@labgruppen.com www.labgruppen.com
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labgruppen.com
Lab.gruppen adopts a policy of continuous improvement and product specication 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.
Copyright © 2015 MUSIC Group Innovation Sweden AB. All rights reserved.
Item no. OM–DSERIES–TESIRA
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