Lab.gruppen FP+ FP 10000Q, FP+ FP 6000Q, FP+ FP 13000, FP+ FP 7000, FP 13000 Operation Manual

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FP+ Series:

Dedicated Touring Ampliﬁers

Rev. 1.0.4

Item no. OM-FP+

Operation Manual

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2 FP+ Series Operation Manual

1 CONTENTS .................................................................................................................................................2

APPROVALS ................................................................................................................................................4

3 WARNINGS .................................................................................................................................................4

3.1 Explanation of graphical symbols ........................................................................................................4

3.1.1 WARNING ................................................................................................................................4

3.1. 2 CAUTION..................................................................................................................................4

3.2 Important Safety Instructions ..............................................................................................................4

3.3 User responsibility ...............................................................................................................................5

3.3.1 Mains connection grounding ....................................................................................................5

3.3.2 Speaker output hazard ..............................................................................................................5

3.3.3 Radio interference ....................................................................................................................5

3.3.4 Speaker damage .......................................................................................................................5

3.3.5 Maintenance .............................................................................................................................5

WELCOME ...................................................................................................................................................6

4.1 Introduction ..........................................................................................................................................6

4.2 Main Features ......................................................................................................................................6

4.2.1 Patented Class TD ampliﬁer and Regulated Switch Mode Power Supply (R.SMPS) ...............6

4.2.2 Ampliﬁer gain ...........................................................................................................................6

4.2.3 Voltage Peak Limiter (VPL) .......................................................................................................6

4.2.4 Protection and performance optimization .................................................................................6

4.2.5 NomadLink / Ethernet control and monitoring network ...........................................................7

5 INSTALLATION ...........................................................................................................................................8

5.1 Unpacking ............................................................................................................................................8

5.2 Mounting .............................................................................................................................................8

5.2.1 Rear support bracket ................................................................................................................8

5.3 Cooling .................................................................................................................................................9

5.4 Operating voltage ................................................................................................................................9

5.5 Grounding ............................................................................................................................................9

6 QUICK GUIDE OVERVIEW .......................................................................................................................10

6.1 Front Panel overview .........................................................................................................................10

6.1.1 Power on/off and remote switch ............................................................................................10

6.1.2 Front Panel LED’s ...................................................................................................................10

6.2 Rear Panel overview .......................................................................................................................... 11

6.2.1 Network and conﬁguration section ........................................................................................12

6.2.2 The DIP-switch features .........................................................................................................12

6.2.3 Input and Output connectors..................................................................................................13

6.3 Nomadlink / Ethernet network setup .................................................................................................14

7 OPERATION AND PERFORMANCE ........................................................................................................15

7.1 Introduction ........................................................................................................................................15

7.2 Operation precautions .......................................................................................................................15

7.3 Signal ﬂow and headroom .................................................................................................................15

1 CONTENTs

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FP+ Series Operation Manual 3

7.3.1 Signal ﬂow blocks ...................................................................................................................15

7.3.2 Headroom, sensitivity and VPL / Gain settings ......................................................................16

7.4 Audio Input and Output connections ................................................................................................. 17

7.4.1 Balanced Input connections ...................................................................................................17

7.4.2 Unbalanced Input connection .................................................................................................17

7.4.3 Speakon Output connections ................................................................................................. 17

7.4.4 Binding Post ( BP ) Output connectors ...................................................................................18

7.4.5 Output bridge mode ...............................................................................................................19

7.4.6 Ampliﬁer Gain .........................................................................................................................19

7.4.6.1 Channel gain / Level ( Front-panel pots ) .......................................................................19

7.4.6.2 Ampliﬁer sensitivity .......................................................................................................19

7.4.7 Output Voltage Peak Limiter, (VPL) ........................................................................................20

7.4.8 Output Current Peak Limiter (CPL) .........................................................................................20

7.5 Protection, faults and warnings .........................................................................................................21

7.5.1 Introduction ............................................................................................................................21

7.5.2 Safe Operating Area Detector (SOAD) ...................................................................................21

7.5.3 Very High Frequency (VHF) protection ...................................................................................21

7.5.4 DC protection .........................................................................................................................21

7.5.5 High-impedance warning (open load) .....................................................................................22

7.5.6 Low-impedance protection (short circuit) ...............................................................................22

7.5.7 Temperature protection ..........................................................................................................22

7.5.8 Power Average Limiter (PAL) .................................................................................................22

7.5.9 Soft-Start ................................................................................................................................22

7.6 Front Panel monitoring and adjustments ...........................................................................................23

7.6.1 Level indicators .......................................................................................................................23

7.6.2 Level adjust ............................................................................................................................23

7.6.3 Mute indication .......................................................................................................................23

7.6.4 Performance, Warning and Fault indicators ............................................................................24

7.7 NomadLink network and DeviceControl software .............................................................................24

7.7.1 NomadLink network in the ampliﬁers ....................................................................................24

7.7. 2 Connection and setup .............................................................................................................25

7.7.3 NomadLink network cable lengths .........................................................................................25

7.7.4 Ethernet network cable lengths .............................................................................................26

7.7.5 DeviceControl software ..........................................................................................................26

8 APPENDIX .................................................................................................................................................27

8.1 M a intenan c e ......................................................................................................................................27

8.2 FAQ ....................................................................................................................................................27

8.3 Additional documentation ..................................................................................................................27

8.4 Current Draw and Thermal Dissipation speciﬁcations .......................................................................28

9 TECHNICAL SPECIFICATIONS ................................................................................................................30

10 WARRANTY ..............................................................................................................................................31

CONTENTs 1

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4 FP+ Series Operation Manual

This equipment conforms to the requirements of the EMC directive 8 9/336/EEC, amended by 92 /31/EEC and 9 3/68/EEC and the requirements of the Low Voltage Directive 73 /23/EEC, amended by 93/6 8/ EEC.

Standards applied: EMC Emission EN55103-1, E3 EMC Immunity EN55103-2, E3, with S/ N below 1% at normal operation level. Electrical Safet y EN6 0065 , Class I

This equipment is tested and approved according to the U.S. safety standard ANS I/ UL 6 00 65 and Canadian safety standard CSA C22.2 NO. 60 065. E TL made the tests and they are a Nationally Recognized Testing Lab orator y (NRTL).

3.1 Explanation of graphical symbols

The lightning symbol within a triangle is intended to alert the user to the presence of un -insulated “dangerous voltage” within the ampliﬁer’s enclosure that may be of sufﬁcient magnitude to constitute a risk of electric shock to humans.

The exclamation point within a triangle is intended to alert the user to presence of impor tant operating and service instructions in the literature accompanying the product.

3.1.1 WARNING 3.1.2 CAUTION

3.2 Important Safety Instructions

Before using your ampliﬁer, be sure to carefully read the applicable items of these operating instructions and the safety suggestions

Keep this manual for future reference. 1. Heed all warnings. 2. Follow all instructions. 3. Do not use this unit near water. 4. Do not spill water or other liquids into or on the unit. Do not operate the ampliﬁer while wet or standing in liquid. 5. Clean only with dry cloth.6. Do not block the air intake or exhaust ports. Install the unit in accordance with the instructions. 7. Do not operate the ampliﬁer near heat producing devices such as radiators, heat registers, stoves or other apparatus that produce heat. Always 8.

operate the unit with the chassis ground wire connected to the electrical safety ear th. Do not defeat the safet y purpose of a grounding-type plug. A grounding type plug has two pins and a third grounding prong. The third prong is provided for your safety. If the provided plug does not ﬁt into your outlet, consult an electrician for replacement of the obsolete outlet.

Connect only to AC power outlets rated 10 0-120 V or 200 -24 0 V, 50-6 0 Hz.9.

Do not use this ampliﬁer if the power cord is broken or frayed. Protect the power cord from being walked upon or pinched particularly at the plugs 10. and the point where it exits from the apparatus. Only use accessories speciﬁed by the manufac turer. 11. The unit is intended to use in a 19” rack. Follow the mounting instructions. When a rack on wheels is used, use c aution when moving the loaded 12. rack to avoid injury from tipping over. Unplug this apparatus during lightning storms or when unused for long periods of time. 13. Do not connect an ampliﬁer output in parallel or series with any other ampliﬁer’s output. Do not connect the ampliﬁer output to any other voltage 14. source, such as battery, mains source, or power supply, regardless of whether the ampliﬁer is turned on or off. Do not run the output of any ampliﬁer back into another channel’s input.15. Refer all ser vicing to qualiﬁed service personnel. Servicing is required when the apparatus has been damaged in any way such as:16.

Power-supply cord or plug is damaged. • Liquid has been spilled into the unit• An object has fallen into the unit• The unit has been exposed to rain or moisture• The unit does not operate normally•

The unit was dropped or the enclosure is damaged•

17. Do not remove top or bottom covers. Removal of the covers will expose hazardous voltages. There are no user ser viceable par ts inside and removal may void the warranty.

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

19. The mains plug is used as the disconnect device and shall remain readily operable. If mounted in a 19" rack c ausing the mains plug not being readily operable, the mains plug for the entire rack must be readily operable.

20. The US National Differencescl.16.3 requires that NomadLink network cables must be ﬂ ame rated V W -1.

2 APPROVALs

To reduce risk of ﬁre or electric shock, do not expose this apparatus to rain or moisture.

To reduce the risk of ﬁre or electric shock , do not remove screws. No user-serviceable parts inside. Refer servicing to qualiﬁed service personnel

3 WARNINGs

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FP+ Series Operation Manual 5

WARNINGs 3

3.3 User responsibility

3.3.1 Mains connection grounding

Your amplifier must be connected to a

grounded socket outlet.

3.3.2 Speaker output hazard

Power ampliﬁers are capable of producing

hazardous output voltages. To avoid electrical shock, do not touch any exposed speaker wiring while the ampliﬁer is operating. The external wiring connected to the speaker terminals shall be installed by a qualiﬁed instructed person or ready-made leads or cords of appropriate capacity shall be used.

3.3.3 Radio interference

As the ampliﬁer outputs produce high voltage,do

not connect or disconnect speaker cables when the mains power is on. Also, attach the safety cover on the speaker terminals for safe operation and to comply with electrical product approvals.

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 B 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. 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 receiver. 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 ﬁelds, high voltage ﬂashes, and radio interference. Consult the dealer or an experienced Radio/TV • technician for help.

3.3.4 Speaker damage

Your ampliﬁer is very powerful and can be

potentially dangerous to both loudspeakers and humans alike. Many loudspeakers can be easily damaged or destroyed by overpowering, especially with the high power available from a bridged ampliﬁer. Always check the speaker’s continuous and peak power capabilities. Even if though the ampliﬁer’s front-panel attenuators can be used to reduce the gain, it is still possible to reach full output power if the input signal level is high enough.

3.3.5 Maintenance

For safe operation and long-term reliability, the front panel dust ﬁlters as well as the inside of the ampliﬁer should be cleaned at regular intervals. If the dust ﬁlters and inside are not maintained there will be safety risks. For example the ampliﬁer can ignite the dust and a ﬁre will occur due to high internal temperatures. There is also a risk that the ampliﬁer will malfunction since the ampliﬁer is dependent of constant airﬂow from front to rear. If the dust ﬁlters are not clean and the ampliﬁer malfunctions, any resultant problems will not be covered by the warranty.

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6 FP+ Series Operation Manual

4 WELCOME

4.1 Introduction

Thank you for choosing Lab.gruppen FP+ Series power ampliﬁers for your sound reinforcement system. We are conﬁdent that you will be pleased with the performance, conﬁguration ﬂexibility, reliability, and long-term durability offered by the FP+ Series products.

This manual provides a comprehensive guide to the features and functionality of FP+ Series ampliﬁers. Please read through it to become fully acquainted with the many conﬁguration options and multiple layers of protection circuitry. To facilitate timely installation and use of this FP+ Series product, we have included a Quick Guide Overview (section 6). This brief summary, in conjunction with Installation (section 5), contains the basic information needed to safely install the ampliﬁer and place it in service. However, we highly recommend reading through this manual in its entirety, beginning with Main Features and Technologies and continuing through Operation and Performance. As you become thoroughly familiar with all aspects of operation, you may learn of features or options that will affect your choices on ampliﬁer modes or loudspeaker system conﬁguration.

The Lab.gruppen FP+ Series builds on the foundation of the road-tested fP Series, with the same sonic signature – powerful, tight bass and transparent high frequency response. In addition, the FP+ Series ampliﬁers establish new benchmarks for extremely high power and channel density, and also offer the beneﬁts of remote computer monitoring and control via the NomadLink network.

Thank you again for placing your conﬁdence in Lab.gruppen power ampliﬁers.

4.2 Main Features

The FP+ Series incorporates a number of sophisticated technologies – many of them proprietary to Lab.gruppen – to ensure the best possible performance and many years of reliable operation. Familiarizing yourself with these technologies will prove invaluable in setting up and optimizing your loudspeaker system.

4.2.1 Patented Class TD ampliﬁer and

Regulated Switch Mode Power Supply (R.SMPS)

Lab.gruppen’s patented Class TD technology combines the exceptional efﬁciency of a Class D ampliﬁer with the high sonic quality associated with Class B designs. Class TD also incorporates the same bas ic concepts behin d Class H designs , but here th ey are reﬁned and pushed to a higher level to achieve greater efﬁciency.

The Class TD output sections work in concert with Lab.gruppen’s unique, Regulated Switch Mode Power Supply (R.SMPS) to create a superior overall power ampliﬁer topology. R.SMPS ensures stable, full output power over an extremely wide range of mains voltage levels. Sagging or ﬂuctuating mains voltage will not affect the power output delivered to the loudspeakers.

4.2.2 Ampliﬁer gain

For greater ﬂexibility in system integration, FP+ Series am p li ﬁ ers allow g a in adjustme nt from +23 dB to + 44 dB in 3 dB steps. This feature accommodates any combination of input device and loudspeaker type. For example, if the input signal is weak, the gain can be boosted to maintain maximum power output while avoiding a poor signal-to-noise ratio. This gain adjustment feature makes it easier to achieve an optimal balance between headroom and noise ﬂoor.

4.2.3 Voltage Peak Limiter (VPL)

The Voltage Peak Limiter (VPL) feature allows user adjustments that determine maximum voltage output, thus matching the ampliﬁer to the connected speaker load. Regardless of load impedance, the VPL feature can be set to ensure that neither temperature nor current limitations are exceeded before reaching the desired voltage threshold.

4.2.4 Protection and performance

optimization

Appropriate and reliable power ampliﬁcation is vital to any audio system. Inadequate or faulty power ampliﬁcation could cause damage to the loudspeakers, or in some cases to the power ampliﬁers themselves. To prevent any damage or costly service interruptions, FP+ Series ampliﬁers offer advanced features to protect both internal circuits and any connected loads. These features even protect the mains fuse that, in extreme cases, could be overloaded.

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FP+ Series Operation Manual 7

Following are short descriptions of standard built-in FP+ Series protection features:

CPL•, (Current Peak Limiter) ensures that the

ampliﬁer’s output does not exceed the safe current handling parameters of ampliﬁer components.

Temperature protection• ensures that the

ampliﬁer will not be damaged by exceeding thermal limits.

PAL•, (Power Average Limiter) limits the maximum

average power consumption according to the power supply and mains-breaker capabilities. VHF• , (Very High Frequency) protection circuits mute the output of the ampliﬁer when nondynamic continuous signals above 10 kHz are detected. DC protection• ensures destructive DC signals will not appear at the ampliﬁer outputs. If such conditions occur an internal fuse opens and fault indication is displayed. Low-impedance• (short circuit) protection pro- vides a fault warning indication and shuts down the output stage when, for example, an input signal is present and a malfunctioning cable or driver is short circuiting the output.

High-impedance• warning reports an alert when,

at the same time, output signal is high and no current draw is measured. This situation might occur when no speakers are connected, or when a driver is blown.

Low inrush current• ensures that the mains

breaker will not trip when several power ampliﬁers are turned on simultaneously.

4.2.5 NomadLink / Ethernet control and monitoring network

The NomadLink network allows easy setup, monitoring, and control of FP+ Series power ampliﬁers and other Lab.gruppen NomadLink-enabled ampliﬁers. The patented network topology provides automatic detection and addressing of multiple ampliﬁers, and is controlled from a PC via the optional NLB 60E NomadLink Bridge & Network Controller using standard TCP/IP communication. Phantom powering through the network cables enables the software to detect devices that are not currently turned on or connected to the mains. This ensures very high reliability and redundancy levels while allowing connected ampliﬁers to remain on standby with no power consumption.

Cable connections can be daisy-chained for easier system setup. This also reduces total component costs, simpliﬁes installation, and makes daily operation more convenient. There is no need to create a star topology using many switches as with, for example, an Ethernet system. Individual ampliﬁer addresses do not need to be manually entered; you will automatically know where an individual ampliﬁer resides in the network.

A daisy chain network loop, in combination with the automatic addressing of devices, enables Lab.gruppen’s proprietary DeviceControl software to automatically create a precise picture of all connected devices and their relative position in the chain. By quickly creating a clear overview of the entire system conﬁguration, DeviceControl provides ﬂexible control of very large ampliﬁer systems. Set-up time is minimized, and critical information is readily available for monitoring performance and solving problems during operation.

Via NomadLink, you can monitor all metering data as well as all faults and warning indications simultaneously. NomadLink also allows you to remotely control power on and power off, as well as engage Mute and Solo functions on individual channels.

WELCOME 4

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8 FP+ Series Operation Manual

Alternative 1: Use washer for ﬁxed installation.

Alternative 2: Use tube for ﬂexible-depth installation.

5 INsTALLATION

5.1 Unpacking

Carefully open the shipping carton and check for any noticeable damage. Every Lab.gruppen ampliﬁer 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 institute a claim with the carrier for damage incurred during shipping. Save the carton and packing materials for the carrier’s inspection. Should you ever need to ship the ampliﬁer, always use the original packaging materials.

5.2 Mounting

Free airﬂow from front-to-rear of the ampliﬁer must be possible. Therefore, no doors or rack-lids should be mounted in front of or behind the ampliﬁers.

Ampliﬁers may be stacked directly on top of each other. There is no need for spacing in between units, though this might enable more convenient installation of cabling on the rear panel.

It is recommended that rear supports be mounted for maximum long-term stability. Rear support brackets are included.

5.2.1 Rear support bracket

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FP+ Series Operation Manual 9

5.3 Cooling

The ampliﬁer uses a forced-air cooling system with air ﬂow from f ront to rear, maint a ining a low op erating temperature within deﬁned limits. Front-to-rear airﬂow is preferred as c o oler air is p resent at the fro nt in nearly all applications. (This allows higher continuous power levels without encountering thermal problems.) Never attempt to reverse the airﬂow. The ampliﬁer modules require a pressure chamber between the fans and heatsink, and this effect functions only in one direction.

Make sure that there is an adequate air supply in f ront of the ampliﬁer, and that the rear of the ampliﬁer has sufﬁcient space to allow the exhaust to escape. If the ampliﬁer is rack-mounted, do not use covers or doors on the front or rear of the rack.

Should a heat sink overheat, the temperature sensing circuits will mute the overheating channel. If the power supply overheats, another sensing circuit will mute all output channels until the power su p ply cools to s a fe operating temper ature. A n early warning before shut down will be indicated on the front panel LEDs, and a warning will be sent through the NomadLink network.

Always make sure that the dust-ﬁlters behind the det a chable front panel are c lean to en sure maximu m possible airﬂow.

If the ampliﬁer malfunctions due to dirty dust ﬁlters, any required repairs are not covered by the warranty.

5.4 Operating voltage

The label placed to the right of the mains

cable o n the rear o f the ampliﬁer i ndicates th e AC mains voltage for which the ampliﬁer is wired and approved: 115 V or 230 V. Connect the power cable only to the AC source type referred to on the label. The warranty will not cover damage caused by connecting to an incorrect type of AC mains.

Lab.gruppen switch mode ampliﬁers use primary switching. Because the mains power is rectiﬁed

directly in front of the transformer, the ampliﬁer is insensitive to mains frequency. It may be connected to 50 or 60 Hz sources, and actually will operate on line frequencies from DC to 400 Hz.

If the power plug mounted at the factory is not appropriate for your country, it can be removed and the proper connector wired in its place as follows:

BLACK or BROWN LIVE WHITE or BLUE NEUTRAL

GREEN or GREEN/ YELLOW EARTH(GROUND)

If you are not 100% conﬁdent of your

compete n c e t o repl a c e t h e m a i n s p l u g , e n g age

qualiﬁed personnel to do the job.

Once a suitable AC supply is connected, the ampliﬁer can be turned on using the front panel power switch. The ampliﬁer then goes through a soft-start sequence as it self-checks its circuits. The fans will blow at high speed before dropping to idle, and the “power” LED will illuminate.

Inrush power is controlled and limited during “softstart”, enabling multiple ampliﬁers to be powered up simultaneously.

5.5 Grounding

There is no ground lift switch or terminal on the FP+ Series ampliﬁers. The signal ground is always ﬂoating, via a resistor, to chassis and therefore the grounding system is automatic.

In the interests of safety, never disconnect the earth (ground) pin on the AC power cord.

Use balanced input connections to avoid hum and interference.

INsTALLATION 5

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10 FP+ Series Operation Manual

6 QUICK GUIDE OVERVIEW

The ampliﬁer’s front panel presents the performance and fault condition indicators, power and remote switches, and a removable dust-ﬁlter cover. Level potentiometers provide individual attenuation for the ampliﬁer channels. Range is 0 dB to - inﬁnity. (The 12 o’clock position indicates -10 dB attenuation.) A convenient label strip with writing surface is provided adjacent to each level potentiometer.

To remove the dust-ﬁlter covers, loosen the thumbscrews located underneath the front handles. This allows removal of the dust-ﬁlters for cleaning. The covers may be mad e “tamper re sistant” b y replacing the thumbscrews with Philips head or safety Torx screw. Thread size is M3.

The ampliﬁer never should be operated without the dust-ﬁlters in place.

6.1.1 Power on/off and remote switch

The Power on/off switch is located on the right side. A second switch, labeled “REMOTE,” is above the Power switch. When the Remote switch is on (with mains connected and power on/off switch on), the yellow LED above it will illuminate indicating that ex ter na l p ow er on /o ff co mm an ds fr om th e N om ad Link network connection will switch the ampliﬁer on or off. When Remote is activated the ampliﬁer will not switch on until a “Power On” command is received from the network. When the remote switch is off, it is not possible to switch ampliﬁer power on or off using NomadLink network control.

6.1.2 Front-panel LED’s

The front-panel LED area includes the following indicators per channel: .

VHF

TEM

NOMAD LINK

BRIDGE C+D

SIG -20 -15 -10 -4

VPL CPL

SIG -20 -15 -10 -4

VPL CPL

BRIDGE A+B

MUTE

SIG -20 -15 -10 -4

VPL CPL

SIG -20 -15 -10 -4

VPL CPL

HI-IMP

CLIP

VHF

TEM

VHF

TEM

VHF

TEM

PWR

PA L

FP10000Q

-10dB

-inf

-10dB

-inf

-10dB

-inf

-10dB

-inf

channel

FP SERIES

PO W

6.1 Front-Panel overview

VHF

•

- Very Hi gh F req uen cy pr ote ction act ive (ou tpu t mu ted )

(Yellow constant)

TEM• - Temperature warning (Yellow ﬂashing) TEM• - Temperature mute ( Yellow constant) MUTE• - Channel muted via NomadLink network or due

to a fault condition (Red)

CPL• - Current Peak Limiter (CPL) active (Orange ﬂashing) CPL• - (Orange constant with output muted): Low impe-

dance / short circuit detection fault

VPL• - Voltage Peak Limiter (VPL) active SIG• - Signal levels - 40 dB (Sig) to –4 dB Hi-Imp• - High- impedance/open load detected (Orange) Bridge• - Bridge mode operation (Yellow)

(PWR) Power on (Green)

(PAL) Power Average Limiter active (Red)

NomadLink network active (Blue)

When no VPL, CPL or PAL indicators are illuminated, and the VPL DIP-switch is set to maximum at the speciﬁed nominal load, the ampliﬁer channel is able to deliver maximum rated output power

When the network is connected, the blue NomadLink LED will illuminate even when mains power is not connected. NomadLink receives phantom power from the network as

supplied by the NLB 60E.

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FP+ Series Operation Manual 11

QUICK GUIDE OVERVIEW 6

6.2 Rear-Panel overview

SPEAKER OUTPUTS

BALANCED INPUTS

CH DCH D CH C+D CH B CH B CH A+BCH C CH A

XLR

PIN 1-SCRN PIN 2-POS PIN 3-NEG

44dB 41dB 38dB 35dB 32dB 29dB 26dB 23dB

150V 121V 101V

83V

70V 56V 47V 38V

BRIDGE 1+:+ 2- : -

1+ CH D+ 1- CH D-

1+ CH C+ 1- CH C-

2+ CH D+ 2- CH D-

1+ CH B+ 1- CH B-

1+ CH A+ 1- CH A-

2+ CH B+ 2- CH B-

Ser. N:o

Removed!

WIRING NORMAL: CLASS 2 BRIDGED: CLASS 3

Must be grounded/earthed

Made in Sweden

200-240V 50-60Hz :2500W

FP 10000Q

DIP-switches

for adjusting key

features

(See below)

XLR connectors for

inputs and loop thru

Mains input 115 V

or 230 V operation

(Not selectable)

NomadLink

network In and Out

on EtherCon-housed

RJ45 connections

4 channel version

shown with Neutrik

Speakon output

connectors

Rear view of two-channel model ﬁtted with Binding Post connectors

Rear view of two-channel model ﬁtted with Speakon connectors

Rear view of four-channel model ﬁtted with Binding Post connectors

SPEAKER OUTPUTS

BALANCED INPUTS

CH DCH D CH C+D CH B CH B CH A+BCH C CH A

XLR

PIN 1-SCRN PIN 2-POS PIN 3-NEG

44dB 41dB 38dB 35dB 32dB 29dB 26dB 23dB

150V 121V 101V

83V

70V 56V 47V 38V

BRIDGE 1+:+ 2- : -

1+ CH D+ 1- CH D-

1+ CH C+ 1- CH C-

2+ CH D+ 2- CH D-

1+ CH B+ 1- CH B-

1+ CH A+ 1- CH A-

2+ CH B+ 2- CH B-

Ser. N:o

Removed!

WIRING NORMAL: CLASS 2 BRIDGED: CLASS 3

Must be grounded/earthed

Made in Sweden

200-240V 50-60Hz :2500W

FP 10000Q

Rear view of four-channel model ﬁtted with Speakon connectors

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12 FP+ Series Operation Manual

6 QUICK GUIDE OVERVIEW

6.2.1 Network and Conﬁguration section

Four-channel model shown. Two-channel versions have VPL and Bridge Mode switches for channels A and B only. All models have different VPL values.

Functions are otherwise identical.

44dB 41dB 38dB 35dB 32dB 29dB 26dB 23dB

150V 121V 101V

83V

70V 56V 47V 38V

6.2.2 The DIP-switch features

The following features may be adjusted using the DIP-switches on the rear panel of the ampliﬁer.

Gain - Globally set for all channels, from +23 dB to +44 dB in 3 dB steps.

Option active - Not currently implemented.

Fan Masked - When on, engages the intelligent

fan feature; fan speed is lowered when no signal is present.

Bridge A+B and C+D- Switches the channel pairs into bridge mode operation An automatic - 6 dB gain compensation is applied.

VPL - The Voltage Peak Limiter provides optimum peak voltage set tings for each c h a nnel. Ei g ht discrete levels are selectable except on the FP 6000Q, which has six levels.

VPL

FP 6000Q FP 7000 FP 10000Q FP 13000

101 V 155 V 150 V 195 V

83 V 121 V 121 V 170 V 70 V 101 V 101 V 140 V 56 V 83 V 83 V 116 V 47 V 70 V 70 V 100 V 38 V 56 V 56 V 80 V

47 V 47 V 66 V 38 V 38 V 54 V

VPL in Bridge Mode

FP 6000Q FP 7000 FP 10000Q FP 13000

202 V 310 V 300 V 390 V 166 V 242 V 242 V 340 V 140 V 202 V 202 V 280 V 112 V 166 V 166 V 232 V

94 V 140 V 140 V 200 V 76 V 112 V 112 V 160 V

94 V 94 V 132 V 76 V 76 V 108 V

Mode - Select VPL mode to either Hard or Soft operation. For channels driving sub-woofers and low-frequency drivers, it is recommended to use the Hard setting for optimal operation. For mid- and high- frequency drivers, always select Soft.

Page 13

FP+ Series Operation Manual 13

6.2.3 Input and Output connectors

All FP+ Series ampliﬁers are equipped with balanced XLR-F input connectors. two-channel models also offer parallel (“loop-thru”) XLR-M output connectors for daisy-chaining multiple ampliﬁers from the same signal source.

All FP+ Series ampliﬁers except the FP 13000 offer a choice of either binding post (BP) or Neutrik© NL4FC Speakon output connectors (SP). The FP 13000 is offered with BP connectors only as the potential maximum output current exceeds the recommended limits for the Speakon connectors.

For speciﬁc conﬁguration and wiring information, see section 7.4.

QUICK GUIDE OVERVIEW 6

Audio inputs - four-channel models Audio inputs and loop-thru connectors -

two-channel models

Speakon outputs - four-channel models

Speakon outputs - two-channel models Binding Posts - two-channel models

Binding Post outputs - four-channel models

Input connectors

Output connectors

Page 14

14 FP+ Series Operation Manual

6.3 NomadLink / Ethernet network setup

The a m p liﬁer includ e s , as a standard feature, internal facilities for the NomadLink monitoring and control network. All features of the NomadLink network are accessible via a PC running Lab.gruppen’s proprietary DeviceControl software. A single rackspace NLB 60E NomadLink Bridge & Network Controller accepts the TCP/IP data stream from the computer and converts it to the NomadLink protocols. E ven when no c omputer is connected, the NLB 60E can initiate stand-alone power on/off and muting functions, as well as report any fault or warning conditions.

The PC is connected to the NLB 60E using a standard Ethernet interface and a crossed Cat-5 cable (peer-to-peer setup). If a HUB or switch is in the network, standard “straight” Cat-5 cables must be used. The front and rear Ethernet connections on the NLB 60E can be used individually, but only one PC at a time running DeviceControl can access the subnet.

Many newer laptop computers will allow peer-to-peer connection with the NLB 60E using a standard “straight” Cat-5 cable instead of a crossed Cat-5 cable.

The default ﬁxed TCP/IP address of the NLB 60E is

192.168.1.166. The subnet mask is 255.255.255.0.

For further details, please refer to instructions supplied with the NLB 60E unit.

The NomadLink connections use standard “straight” Cat-5/RJ45 equipped cables. For a safer mechanical connection it is possible to use Neutrik EtherCon “XLR-type” housings on the cables.

US National Differences cl.16.3 requires that NomadLink network cables must be rated VW-1.

The O UT p o r t from the NLB 6 0 E must be conn e c ted to the IN port of the ﬁrst ampliﬁer. The OUT port from the ﬁrst ampliﬁer in turn connects to the next ampliﬁer’s IN port to form a daisy-chain The OUT port on the last ampliﬁer is connected to the IN port on the NLB 60E to close the loop.

There are electrical limitations to cable lengths on a NomadLink network, both in terms of total cable length in the loop and between any two devices. Read the

Operation and Performance chapter in this manual, or the instructions supplied with the NLB 60E, to ensure the network is conﬁgured within these parameters.

Although the network will function as an open loop under most circumstances, it is strongly recommended that the loop be closed by connecting the last ampliﬁer’s

OUT port to the NLB 60E’s IN port. Doing so will improve redundancy and communication speed.

External contact closures and 24 V low/high triggers can be connected to the GPI connectors on the NLB 60E for control of ﬁre-alarm systems or external power sequencers. For more details read the instructions supplied with the NLB 60E.

6 QUICK GUIDE OVERVIEW

SPEAKER OUTPUTS

BALANCED INPUTS

CH DCH D CH C+D CH B CH B CH A+BCH C CH A

XLR

PIN 1-SCRN PIN 2-POS PIN 3-NEG

44dB 41dB 38dB 35dB 32dB 29dB 26dB 23dB

150V 121V 101V

83V

70V 56V 47V 38V

BRIDGE 1+:+ 2- : -

1+ CH D+ 1- CH D-

1+ CH C+ 1- CH C-

2+ CH D+ 2- CH D-

1+ CH B+ 1- CH B-

1+ CH A+ 1- CH A-

2+ CH B+ 2- CH B-

Ser. N:o

Removed!

WIRING NORMAL: CLASS 2 BRIDGED: CLASS 3

Must be grounded/earthed

Made in Sweden

200-240V 50-60Hz :2500W

FP 10000Q

IN OUT

NOMADLINK

IN OUT

NOMADLINK

IN OUT

ETHERNET

GENERAL

PURPOSE

INPUT, GPI

ETHERNET

"Crossed" RJ45 cable:

Between NLB 60E and PC.

"Straight" RJ45 cable: Between Ethernet switch or hub and NLB 60E.

"Straight" RJ45 cables: Between NLB 60E and ampliﬁers, and from ampliﬁer to ampliﬁer in a subunit.

NOTE: Connection can be made to either the front or rear panel or the NLB 60E. Although two computers may be connected to the NLB 60E simultaneously, only one is allowed access to the subnet at a time.

Page 15

FP+ Series Operation Manual 15

Overall ampliﬁer input gain is adjusted using the input stage DIP-switches. Please note that the gain setting is global, affecting all channels. Following the input stage, the dedicated level control on each channel allows signal attenuation from 0 dB to minus inﬁnity.

The Current Peak Limiter (CPL) section dynamically limits the input signal based on three parameters: sensed current level, feedback from the output stage, and sensed voltage clip from the VPL (and output ampliﬁer voltage clip if “Soft Clip” is activated). This ensures that power output is maintained within the design limits of the ampliﬁer.

The adjustable Voltage Peak Limiter (VPL) sets the maximum output voltage and therefore also the maximum output power. Eight different voltage stages are available using the DIP-switches on the rear panel of all models, except the FP 6000Q which provides six voltage stages.

The sophisticated output section monitors faults and generates appropriate warnings, which are displayed on the ampliﬁer front panel and transmitted through the NomadLink network. These alerts allow the operator to adjust system settings and thereby avoid problems. In the rare event that conditions are extraordinarily severe, the ampliﬁer will shut down until the fault or problem setting has been rectiﬁed or adjusted. These sensing circuits are also employed to feed back voltage and current level information, via a side chain, to the limiters. Sensing circuits also transmit local ampliﬁer module temperature and power supply temperature to the appropriate protection mechanisms. Read the Protection, Faults and Warnings section for further details.

7.1 Introduction

The following sections provide comprehensive information on ampliﬁer connection, setup, operation, and performance. The detailed information included here is essential to realizing the full functionality of the FP+ Series ampliﬁers.

7.2 Operation precautions

Make sure t h at the Pow er switch a n d the Remote

•

switch on the ampliﬁer front panel are set to “off” before making any input, output or network connections, and also before manipulating the DIP-switches on the rear panel. Make sure that the AC mains voltage is correct • an d m atches t h e voltage printed on the rear panel of the ampliﬁer (115 V or 230 V). Make sure that no signal is present at the input • to the ampliﬁer when powering up. An input signal could produce an unintentionally loud initial volume from the speakers.

7.3 Signal ﬂow and headroom

7.3.1 Signal ﬂow blocks

All FP+ ampliﬁers have the same signal ﬂow, and the same feature sets. The only internal differences are in the maximum output current per channel and VPL settings.

The input stage of all FP+ Series ampliﬁers has a high sensitivity to provide ample system headroom. This in effect means that the input stage is almost impossible to clip.

OPERATION AND PERFORMANCE 7

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16 FP+ Series Operation Manual

7.3.2 Headroom, sensitivity and VPL / Gain settings

The input ampliﬁer and limiter system is designed to accommodate extremes of performance. Typically, exceeding maximum input by much as +10 dB will only result in a 1% increase in distortion. The following schematics illustrate how the adjustable VPL and Gain circuitry affect input sensitivity and output power.

The tables to the left of the drawing below show input sensitivity for a FP 13000 with a 2 ohm load and 195 Vpeak (max.) and 54 Vpeak (min.) respectively for the eight different gain stages between +23 dB and +44 dB. The resulting output power is displayed in dBu, Vrms and watts in the tables to the far right. Complete input sensitivity tables for all VPL and Gain settings for all FP+ Series models can be found at www.labgruppen.com.

The headroom available through the input stage to the clip limiter is shown by the dotted lines as +10 dB at 195 V peak and +16.1 dB at 54 V peak. These lines illustrate the additional signal level that can be ac c e p ted at th e input before any signiﬁcant distor t ion will appear at the input stage.

If you use the level potentiometer in the signal chain to reduce the level by an amount greater than the headroom relative to input

sensitivity, AND you drive the ampliﬁer to clip level, you are in danger of clipping the input stage before the current or voltage peak limiters are activated.

When bridging two channels, you must ad d + 6 dB to the i nput sensi t ivit y to achieve maximum output voltage due to the automatic -6 dB gain compensation

inserted by the ampliﬁer.

7 OPERATION AND PERFORMANCE

FP 13000 VPL and GAIN settings

Gain set to:

(DIP-switches)

+ 44 dB + 41 dB + 38 dB + 35 dB + 32 dB + 29 dB + 26 dB + 23 dB

Voltage Peak Limiter set to:

(DIP-switches)

195 V

peak

170 V

peak

140 V

peak

116 V

peak

100 V

peak

80 V

peak

66 V

peak

54 V

peak

Input sensitivity dBu / V

rms

1,0 / 0,87 4,0 / 1,23

7,0 / 1,7 10,0 / 2,5 13,0 / 3,5 16,0 / 4,9 19,0 / 6,9 22,0 / 9,8

Hard/Soft switch

Gain select switches

Front panel

potentiometer

Dynamic

Gain reduction

VPL select switches

Class TD

Voltage Clip sensing

Current clip sensing

Monitoring Level

Temperature

Fault/Warning

Control Mute

+ 10 dB headroom to clip

relative to input sensitivity *)

Output

power

dBu / V

rms

45,0 / 138

43,8 / 120 42,1 / 99 40,5 / 82 39,2 / 71 37,3 / 57 35,6 / 47

33,9 / 38

Gain set to:

(DIP-switches)

+ 44 dB + 41 dB + 38 dB + 35 dB + 32 dB + 29 dB + 26 dB + 23 dB

Input sensitivity dBu / V

rms

-10,1 / 0,24

-7,1 / 0,34

-4,1 / 0,5

-1,1 / 0,7 1,9 / 1,0 4,9 / 1,4 7,9 / 1,9

10,9, / 2,7

+ 16,1 dB headroom to clip

relative to input sensitivity*)

VPL set to 54 V

PEAK

VPL set to 195 V

PEAK

Input Amplifier

Level Control Clip Limiter Voltage Peak Limiter

Output Power Amplifier

*) Headrom limited to +5dB at Gain set to +23 dB at Max. VPL

Complete tables for all VPL settings can be found at: www.labgruppen.com

Output Power

@ 2 Ohm

Watt

6.500 W

4.970 W

3.540 W

2.550 W

1.850 W

1.330 W

960 W

Page 17

FP+ Series Operation Manual 17

7.4 Audio Input and Output connections

7.4.1 Balanced Input connections

Audio inputs - four-channel models

Audio inputs and loop-thru connectors -

two-channel models

The XLR input connectors are electronically bala n c e d , and wire d a c c o rding to the IEC 268 standard (pin 2 = hot). XLR input connectors should be wired as follows:

Pin 1 Ground/shield Pin 2 Hot (+) Pin 3 Cold (-)

When linking the same source signal to several input channels, be aware that there is a limit to the number of channels an output source can “drive”. A typical output

source (e.g. a DSP crossover unit) can drive up to four ampliﬁer channels before external line-drivers might be required to buffer the signal.

7.4.2 Unbalanced Input connections

To connect an input to an unbalanced source, it is possible to connect pins 1 and 3 in the XLR plug at the ampliﬁer end of the cable. However, a better method is to connect pin 3 to the shield at the source end of the cable, as this usually results in better hum and noise rejection. Balanced input connections are recommended whenever possible.

7.4.3 Speakon Output connections

Refer to the instructions in this section if your ampliﬁer is equipped with the Speakon output connectors.

Speakon outputs - two-channel models

Speakon outputs - four-channel models

OPERATION AND PERFORMANCE 7

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18 FP+ Series Operation Manual

Two-channel ampliﬁers – Two-channel ampliﬁers

are wired in the following manner. The right Speakon connector, Channel A+B, provides outputs for both Ch a nnel A and Chan nel B. This output i s useful w h e n wiring the ampliﬁer for bridged mono operation. See section 7.4.6. The left Speakon connector provides an output for Channel B only.

Connect the + and – loudspeaker cables as shown in the illustrations below.

Channel A and B into two separate Speakons

Channel A and B into one Speakon (Stereo and Bi-amp)

Bridge mono

Four-channel ampliﬁers – Additional connectors are provided for Channel C and Channel D. Channel C functions as Channel A above, and Channel D as Channel B above.

7.4.4 Binding Post (BP) Output connectors

Refer to the instructions in this section if your ampliﬁer is equipped with Binding Post output connectors.

Binding Post outputs - two-channel models

Binding Post outputs - four-channel models

Connect the positive (+) loudspeaker cable to the positive (+) red terminals. Connect the negative (-) loudspeaker cable to the negative (-) black terminals. For bridge mode, connect the positive (+) terminal on Channel A to the positive (+) loudspeaker cable and the negative (-) terminal on Channel B to the negative (-) loudspeaker cable.

Channels C and D on four-channel versions are connected in the same manner. For bridge mode, connect the positive (+) terminal on Channel C to the positive (+) loudspeaker cable and the negative (-) terminal on Channel D to the negative (-) loudspeaker cable.

The outputs on all FP+ Series ampliﬁers

produce high voltage. Do not connect or disconnect the loudspeaker cables while the mains power is on. Never operate the ampliﬁer with any portion of bare loudspeaker wire exposed. Also, attach the safety cover (4-channel Speakon versions only) on the speaker terminals for safe operation and to comply with electrical product approvals.

7 OPERATION AND PERFORMANCE

Page 19

FP+ Series Operation Manual 19

Never connect an o u t put termin a l to grou n d ,

or to any other input or output. Observe relative loudspeaker polarity: loudspeakers

connected in reverse polarity will exhibit degraded performance, particularly in bass frequencies, and may be damaged as a consequence.

Use a high-quality stranded loudspeaker

cable, and keep cable runs as short as

possible.

7.4.5 Output bridge mode

It is possible to bridge channels in two-channel versions, or in pairs of two (A+B and C+D) in four-channel versions. When bridged, the input source must be connected to input A (A+B) or C (C+D) respectively. Output speaker cables must be connected to the plus pole on channel A or C and the minus pole on B or D.

The main beneﬁt of bridging the output is a doubling of output voltage. Bridging can be used to turn a four-channel FP 10000Q ampliﬁer, for example into a three-channel ampliﬁer with 2 x 1300 W and 1 x 4200 W at 8 ohms or 2 x 2100 W and 1 x 5000 W at 4 ohms

Most power ampliﬁer designs, when bridged, automatically introduce a +6 dB input gain boost which can lead the user to conclude that said ampliﬁer delivers “more than double the power” when in bridge mode. This is clearly not the case, as the gain boost artiﬁcially enhances perceived power at the cost of headroom. The FP+ Series ampliﬁers work on globally set constant gain, and automatically compensate the input gain by -6 dB. For example, if the ampliﬁer is conﬁgured in a three-channel mode, then the selected gain is maintained from input to output on all channels.

7.4.6 Ampliﬁer Gain

All FP+ Series ampliﬁers feature adjustable input gain. This versatil i t y enables the a m p liﬁer to accomm o d a te a multitude of system conﬁgurations with various input sources and speaker layouts. Ampliﬁer gain is set globally for all channels. The range is +23 dB to +44 dB in 3 dB steps. Individual channel ﬁne level adjustment is available using the potentiometers on the front panel.

The unique adjustable input gain feature of the FP+ Series makes it easier to attain the optimum balance between headroom and signal-to-noise ratio in the signal path. A weak signal at the input might require t he gain to b e r aised in or der to achieve maximum output power with the lowest signal-to-noise ratio. A “hot” input signal, however, would require a lowering of the gain to avoid sending the ampliﬁer into Voltage or Current clipping. See Appendix to review the table containing Gain versus VPL setting implications for input sensitivity and output power. Bridge mode operation automatically compensates by -6 dB, keeping all channels at the same gain.

7.4.6.1 Channel gain/level (front-panel pots)

Individual channel gain (level) may be adjusted using the potentiometers located on the front panel. Range is from 0 dB to -inﬁnity in 21 steps. The attenuation is logarithmic, with the 12 o’clock position indicating

-10 dB.

If the level control is used to attenuate to a lower level than the headroom relative to input sensitivity AND the ampliﬁer input is

dr i ven into clip, t here is a d a n g er of clip p i ng the input stage before the current or voltage peak limiters are activated.

7.4.6.2 Ampliﬁer sensitivity

Sensitivity is deﬁned as how many Volts (rms) or dBu (referred to 0.775 Vrms) are required to achieve full (maximum) output power. As the output power varies with the load impedance, 4 ohms is usually the common reference. Since FP+ Series ampliﬁers are capable of providing multiple maximum output power levels through use of the VPL feature, many sensitivity calculations may be required for a single ampliﬁer. We recommend use of the DeviceControl software to simplify this process. DeviceControl’s Device View page, used in combination with the DIPswitch settings display, will automatically produce a sensitivity calculation from the given data (VPL, Gain and load).

OPERATION AND PERFORMANCE 7

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20 FP+ Series Operation Manual

7.4.7 Output Voltage Peak Limiter (VPL)

Voltage Peak Limiter (VPL) is a unique feature in FP+ Series ampliﬁers. It is used to select the maximum power available on each output channel. VPL levels are set using the rear-panel DIP-switches; eight level positions are offered on all models except the FP 6000Q, which offers six).

FP 13000

peak

rms

195 138 170 121 140 99 116 82 100 71

80 57 66 47 54 38

FP 7000

peak

rms

155 110 121 86 101 72

83 59 70 50 56 40 47 33 38 27

FP 10000Q

peak

rms

150 106 121 86 101 72

83 59 70 50 56 40 47 33 38 27

FP 6000Q

peak

rms

101 72

83 59 70 50 56 40 47 33 38 27

The values for VPL are displayed as maximum Voltage Peak. To translate Voltage Peak into Vrms, you must divide the Voltage Peak values by 1.41 (see table). The VPL allows you to set the correct maximum output peak power for optimum performance with th e c onnected sp eaker s . T h e c o r rect setting d e p e n d s on the system type and the speciﬁc load connected to the channel. Since each channel can be conﬁgured to deliver either very high voltage peak power OR high current draw at low-impedances, it is important to set the VPL correctly.

If you choose a lower VPL setting, you only reduce the maximum output voltage. At the same time, this allows more current headroom for low-impedance loads. The ampliﬁer thus runs at higher efﬁciency, with a signiﬁcantly reduced risk of going into thermal protection.

7.4.8 Output Current Peak Limiter (CPL)

The Current Peak Limiter (CPL) ensures that the ampliﬁer will not be damaged by forcing the ampliﬁer to deliver current levels to the outputs that exceed the physical limits of the transistors. The CPL keeps the ampliﬁer within the Safe Operating Area (SOA).

The CPL is non-adjustable and has different limit values depending on model type.

CPL activity is indicated by illumination of an orange LED for each channel on the front panel. Warnings also are shown in the DeviceControl software’s GUI.

A steadily illuminated orange CPL LED (with MUTE illuminated) indicates a short circuit situation (or very low-impedance). The output will mute for 6 seconds before measuring the output impedance again. This will continue until the short circuit is ﬁxed, at which time the output will automatically un-mute. An input signal must be present to allow detection of short circuit or low-impedance conditions.

The problem can be solved by checking

input and output cables and examining the

state of the loudspeaker load. If there is no

short circuit present, then the condition may be rectiﬁed by lowering the VPL or input levels.

7 OPERATION AND PERFORMANCE

Page 21

FP+ Series Operation Manual 21

7.5 Protection, faults and warnings

7.5.1 Introduction

The FP+ Series ampliﬁers incorporate a sophisticated and comprehensive set of protection features. Faults and warnings are indicated on the front panel and reported via the NomadLink network for indication on the DeviceControl GUI.

7.5.2 Safe Operating Area Detector (SOAD)

The Safe Operating Area Detector (SOAD) compares output voltage against output current to ensure that the output transistors are working inside their safe operating area.

The SOAD provides fault monitoring and input to the Current Peak Limiter (CPL). The SOAD has no dedicated indicator, and its operation is revealed only in conjunction with features such as the CPL.

7.5.3 Very High Frequency (VHF) protection

All FP+ Series ampliﬁers include protection circuits that detect continuous Very High Frequency content in the input signal. The detection begins at approximately 10 kHz and moves upwards to include ultrasonic signals If VHF signals are detected, the output will mute for 6 seconds before re-measuring. Once no continuing VHF signal is detected, the output un-mutes and returns to normal operation.

This feature recognizes that continuous full-scale VHF signals do not appear in “natural” sources such as music. Any su c h signals can th erefore be cons i d ered as a fault when present. VHF protection is essential in avoiding damage to high frequency drivers.

The VHF protection operational area is dependent on output power level and frequency. The illustration below shows a decreasing threshold on the output power level, starting at approximately 10 kHz and ri sing with a - 6 dB slope. This deﬁ n e s the VH F prote c tion area. When continuous output power above the threshold line is detected the VHF protection becomes active.

20 Hz 10 kHz 20 kHz

30 kHz

- 6 dB slope

VHF protection

operation area

Max. Peak output power

Max. Continous output power

power

Attack time

VHF protection

Slow

Fast

20 Hz 10 kHz 20 kHz

30 kHz

The Attack time for the VHF protection is increasingly shorter at higher frequencies. For example, an ultrasonic continuous signal will cause the outputs to mute rapidly, where it will take several milliseconds for a 10 kHz continuous signal to trigger the output mute. This is shown in the illustration above.

The VHF protection is NOT a limiter and does not alter the ampliﬁer’s frequency response. It is implemented solely to detect continuous VHF content. The ampliﬁer will always pass VHF peaks at full power, with no effect on musical “transients”.

The VHF protection is indicated by a yellow LED on the ampliﬁer front panel, with output muting for 6 seconds when in action. It is reported as a fault via the NomadLink network on the DeviceControl GUI.

If you bench test the ampliﬁer using a continuous, full scale sine-wave input above 10 kHz, the VHF protection will activate and prevent measurement of full peak output

power. (Output will be muted long before maximum output power is attained.) To measure the true peak output power, use a burst signal.

7.5.4 DC protection

DC protection is implemented on each output to prevent damage to connected loudspeakers. DC present at the output will trigger muting and illuminate the fault LED indicator. Any DC present at the output indicates a hardware malfunction that requires servicing of the ampliﬁer.

OPERATION AND PERFORMANCE 7

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22 FP+ Series Operation Manual

7.5.5 High-impedance warning (open load)

A high-impedance (open load) condition is indicated when an input signal above approximately -29 dB is detected and no functioning loudspeakers are connected to the ampliﬁer. The fault in indicated by a orange Sig/Hi-imp LED. The indicator is green when a valid load is present under the same input signal conditions

Since the Hi-impedance detection initially triggers only when the input signal rises above -29 dB, it might cause the indicator to ﬁrst turn green, and then red,

even in situations where no speaker is connected.

7.5.6 Low-impedance protection warning

A low impedance or short circuit fault is detected when current draw is high (Current Peak Limiter active) and when, simultaneously, output signal is low (-4 dB LED does not illuminate). When this occurs, the ampliﬁer protects the output stage from damage by muting the output signal and bypassing the circuits. Indication of this fault is a constant orange illumination of the Current Peak Limiter (CPL) LED on the front panel. The protection will sequence at 6 second intervals to re-measure conditions. If the low-impedance fault is no longer detected, the ampliﬁer will un-mute.

If the CPL turns constant orange, the output

is muted, and the -4 dB signal LED is ON, then the ampliﬁer has gone into maximum current protection. This situation is caused

by an excessive input signal and is not due to a short circuit. Turn down the input signal to avoid or remedy this situation.

7.5.7 Temperature protection

Thermal measurement points are provided on each output channel as well as on the power supply. These indicators will, if the pre-speciﬁed temperature level is exceeded, give a high temperature warning. This warning condition is indicated by a ﬂashing TEM LED on the front panel, and it is reported on the Device Control GUI via the NomadLink network.

As the ampliﬁer approaches a thermal protection threshold, the warning LED sequence will start with short “on-time” bursts. If the ampliﬁer continues to overheat and approaches the temperature limit, the ﬂashing sequence will be deﬁned by longer and

longer on-time bursts until the protection mode is activated.

If the temperature becomes too high to continue safe operation, the overheated output channel(s) will be muted until the temperature returns to an acceptable level.

Fully active temperature protection (with muting) is indicated by a constantly illuminated TEM LED. It will also be indicated as a fault via the NomadLink network on the DeviceControl GUI.

Temperature measurements will continue at 6 second intervals. The output will un-mute when the channel or power supply returns to a safe operating temperature.

7.5.8 Power Average Limiter (PAL)

The Power Average Limiter (PAL) controls the current-drawing relationship between the power supply and the mains inlet. PAL limits the maximum average power consumption according to the power supply capabilities, ensuring that the PSU will not overload. In addition, in the larger models that potentially could pull more current from the mains than the mains fuses are speciﬁed to handle (more than 16 A), PAL limits the ampliﬁer’s maximum current draw to prevent blowing the mains fuse.

7.5.9 Soft-Start

High powered ampliﬁers with inadequate inrush limiting can pull considerable current from the mains at turn-on. This can result in tripping of fastacting mains breakers. Such is not the case with FP+ Series ampliﬁers. The FP+ Series ampliﬁers have very low inrush power as the capacitors are charged slowly and in a controlled manner ensuring that breakers will not trip.

Several ampliﬁers will, under normal conditions, be able to be powered up simultaneously. If you do experience problems powering up multiple ampliﬁers simultaneously, use the NomadLink network and/or the NLB 60E to establish a power sequence with a preset delay between the start-up of each subsequent ampliﬁer.

7 OPERATION AND PERFORMANCE

Page 23

FP+ Series Operation Manual 23

7.6 Front-panel monitoring and adjustments

7.6.1 Level indicators

The front-panel displays an array of ten LED indicators for level and status monitoring of each ampliﬁer channel. Indications related to signal levels are as follows:

Orange CPL (Current Peak Limiter)• ﬂashing

Indicates that output signal has reached the limit of the output devices and limiting is in effect.

Red VPL/CLIP• Indicates that signal has reached

maximum output voltage. (Maximum voltage is determined by rear-panel VPL settings.) Green SIG to -4• Indicates output signal levels in normal operating range SIG + HI-IMP (green/orange)• Indicates input signal above – 44 dB. Should the SIG indicator turn red, this indicates a “high-impedance” or open connection has been detected at the output. Possible faults include a disconnected cable or malfunctioning loudspeaker. (In some cases a normal condition, such as a sub-bass enclosure with high-impedance at a certain frequency, can trigger this indication.) If the -10 dB LED illuminates AND the HI-IMP LED turns orange, then the ampliﬁer has detected an open load (no loudspeaker connected).

More detailed signal indications are available using the DeviceControl software application.

7.6.2 Level adjust

Level adjust potentiometers (one per channel) are lo c ated on the front panel a d j a cent to t he LED display. The potentiometer’s operational range is 0 dB to minus inﬁnity in 21 steps. Attenuation is logarithmic, with -10 dB at the 12 o’clock position. See table for levels at other increments.

OPERATION AND PERFORMANCE 7

Step Attenuation

1 (Min) -Inf. dB

2 -Inf. dB 3 - 50 dB 4 - 40 dB 5 - 35 dB 6 -21.5 dB 7 -21.5 dB 8 -14.7 dB 9 -12.9 dB

10 -11.4 dB

11 -10.0 dB

12 -8.7 dB 13 -7.4 dB 14 -6.0 dB 15 -4.5 dB 16 -2.7 dB

17 -0.6 dB 18 -0.3 dB 19 - 0.1 dB 20 0 dB

21 (Max) 0 dB

Note that it is not possible to adjust individual channel attenuation from the NomadLink network or elsewhere on the ampliﬁer.

7.6.3 Mute indication

Individual channel Mute is indicated by illumination of the red MUTE LED provided for each channel. If only the red MUTE LED is illuminated and all other indications are normal, then the channel has been muted by a command from the NLB 60E front panel or the DeviceControl application. Otherwise, an illuminated MUTE LED could indicate a fault condition (see below).

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24 FP+ Series Operation Manual

7 OPERATION AND PERFORMANCE

7.6.4 Performance, Warning and Fault indicators

Common Indicators:

Power on/off• (green) indi c ates th a t mains powe r

is switched on.

NomadLink •(blue) indicates that the network

is connected. The NomadLink LED will light up even before the mains power is connected and sw i tched on as i t t akes p h a ntom power from t he network cable.

PAL•, Power Average Limiter (red), indicates

that the ampliﬁer is limiting because the power supply and/or the mains-inlet fuse has reached maximum capability.

Channel Indicators:

Bridge mode • (yellow) indicates if two channels

are bridged using the DIP-switch on the rear panel.

CPL, •Current Peak Limiter (orange), when

ﬂashing indicates the maximum possible current draw has been reached. CPL, • Current Peak Limiter (orange), when con- stant indicates excessive current draw caused by a short circuit on the output or very low oper a tional impedance. M UT E LED w i ll illumi n ate and the output will mute for 6 seconds before re-measuring the output impedance. This will continue until the short circuit is removed. CPL remains constant orange in a fault condition only when an input signal is present.

Temperature •(yellow) warning is indicated

by a ﬂashing LED. If the ampliﬁer goes into thermal protect (output muted), the TEM LED

illuminates constant yellow and the red MUTE LED illuminates.

VH F, •Very High Frequency protection (yellow)

indicates that potentially harmful continuous high frequencies have been detected on the input signal. The output is muted (MUTE LED on).

Hardware fault •is indicated whe n b oth the CPL

and TEM, VHF and MUTE indicators light up simultaneously. The ampliﬁer requires servicing before placing back in operation.

7.7 NomadLink network and DeviceControl software

7.7.1 NomadLink network in the ampliﬁers

All FP+ Series ampliﬁers are equipped with the proprietary NomadLink network interface. This includes two EtherCon housed RJ45 connections: one IN and one OUT.

Use standard straight Cat-5 Ethernet cables with RJ4 5 connector s to connect t he ampliﬁer to the NLB 60E or to daisy-chain multiple ampliﬁers.

It is very import ant that t wo IN or two OUT ports are NEVER connected to each other. This will cause the NomadLink communi-

cation and DeviceControl to exhibit erratic behavior and display inaccurate data. However, this situation will not damage the ampliﬁer circuitry.

Page 25

FP+ Series Operation Manual 25

Up to 60 ampliﬁers can be connected to one NLB 60E in a daisy-chain or closed loop.

When the NLB 60E is powered up, the NomadLink network receives phantom power. This causes the blue NomadLink LED on the ampliﬁer front panel and the NomadLink LED on the rear panel to light up . N o m adL ink is active even w h e n the ampliﬁer h a s mains power disconnected or is not yet powered up.

The ampliﬁer does not have a stand-by power supply for the network. The network is solely powered from the NLB 60E. Should an ampliﬁer fail or be inadvertently disconnected from the mains, network integrity is fully maintained and all ampliﬁers remain visible on the system.

7.7.2 Connection and setup

The NomadLink network requires use of an NLB 60E NomadLink Bridge & Network Controller. The NomadLink network is established by connecting the NLB 60E OUT port to the ﬁrst ampliﬁer’s IN port. Then a daisy-chain is established by connecting the ﬁrst ampliﬁer’s OUT port to the next ampliﬁer’s IN port, and so on. If a closed loop network is desired for improved redundancy (highly recommended), the last ampliﬁer’s OUT port must be connected to the NLB 60E’s IN port.

For all connections, straight Cat-5 RJ45 -equipped Ethernet cables should be used.

OPERATION AND PERFORMANCE 7

Optimal NomadLink performance can only

be assured when using Cat-5 cables.

However, as NomadLink is only using two

wires + ground for communication and phantom power it is possible to create converters from RJ45 to, for example, XLR connectors using 2-wire shielded cable. The NomadLink network can then be operated using a standard tie-line in a multicore signal distribution system. See the drawing below for an example of how to create a converter.

If any cable fo r m a t or connectio n other than

Cat-5 (or better) and RJ45 is utilized,

network performance may be compro-

mised. In this event Lab.gruppen cannot guarantee that the NomadLink network will be fully operational.

7.7.3 NomadLink network cable lengths

In situations where the ampliﬁers and the NLB 60E will be positioned in different locations at some distance from each other, or where groups of ampliﬁers within a single subnet with up to 60 units will be installed with a distance in between, these general rules may be considered:

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26 FP+ Series Operation Manual

Below are typical examples of NomadLink network setups:

Rule 1:• The maximum cable length in between any two devices may not exceed 300 meters / 980 feet. Rule 2:• In a non-closed-loop daisy-chained subnet the total maximum cable length is 400 meters / 1300

feet.

Rule 3:• In a closed-loop subnet the total maximum cable length is 700 meters / 2300 feet.

7.7.4 Ethernet network cable lengths

The connection between the NLB 60E and your PC is a standard Ethernet network running the TCP/IP protocol. Cable distances between NLB 60E and your PC follow standard rules for Ethernet systems.

Contact your IT expert for more details.

7.7.5 DeviceControl software

DeviceControl is Lab.gruppen’s proprietary software application for monitoring and controlling networked FP+ Series and other Lab.gruppen NomadLink-ready power ampliﬁer. DeviceControl runs on a Windows PC, which connects via Ethernet to the NLB 60E NomadLink Bridge & Network Controller. DeviceControl provides comprehensive monitoring of ampliﬁer status as well as control of ampliﬁer power on/off and individual channel mute and solo functions.

Please review the DeviceControl Operation Manual for more detailed information.

7 OPERATION AND PERFORMANCE

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FP+ Series Operation Manual 27

8.1 Maintenance

During normal operation your FP+ Series ampliﬁer will provide trouble-free service. The only user maintenance required is to periodically vacuum clean the foam dust-ﬁlters behind the front grille.

In some extreme cases it may be necessary for authorized service personnel to clean the inside of the ampliﬁer. These conditions usually occur after prolonged use in extreme environments such as those using “cracked oil” smoke machines. If you are using your ampliﬁer in a heavy duty application, it is recommended to have your ampliﬁer serviced every 3 years purely as a preventative action.

8.2 FAQ

Following are common questions asked about Lab.gruppen FP+ Series power ampliﬁers together with helpful answers.

Q: What is the input sensitivity of the ampliﬁers? A: Input sensitivity is calculated from the ampliﬁer

gain, maximum output voltage and load. As gain and output voltage is adjustable in FP+ Series ampliﬁers, you need to look this information up in a table found in th e A pp endix section of this manu a l. Input sen sitivity also is automatically calculated in the DeviceControl software application.

Q: What are the maximum cable lengths allowed when using the NomadLink network? A: NomadLink uses a daisy-chain topology to connect ampliﬁers and an NLB 60E in a network. Standard RJ45 -equipped Cat-5 cables are used throughout. The daisy chain may be made into a closed-loop by connecting a return cable to the NLB 60E from the last ampliﬁer.

General rules of cable lengths:

The maximum cable length in between any

•

two devices may not exceed 300 meters / 980 feet. In a non-closed-loop daisy-chained subnet the • maximum cable length is 400 meters / 1300 feet. In a closed-loop subnet the maximum cable

•

length is 700 meters / 2300 feet. Exceeding these limits may result in lost contact with the devices, or loss of phantom powering due to cable resistance.

Q: How long can cable-runs be on the Ethernet network connecting the NLB 60E to the PC? A: On the Ethernet side, normal Ethernet cable limits ap p l y. This is t ypic ally a maximum of 8 0 m eters / 3 00 feet between each device. Follow standard installation procedures for Ethernet. Distances beyond 100 meters may require use of a repeater, a format converter, or optical cables.

Q: Why is the NomadLink network a closed-loop to p o lo g y? A: Technically speaking, the closed loop is optional. The purpose of closing the loop is primarily to provide a secondary path to the ampliﬁers. If cables are broken or disconnected in either direction, all ampliﬁers still may be addressed by the network.

Q: How can I be sure that no protection circuits or safety functions interfere with the output signal? A: If no Clip or Warning LEDs on the front panel light up, you can be fully conﬁdent that the rated maximum output power in the full frequency range is available for your speakers. No limiting or gain-reduction takes place without a warning or fault indication.

8.3 Additional documentation

In case you didn’t ﬁnd what you were looking for in this Operation Manual, check out the website at www.labgruppen.com, where you can ﬁnd a multitude of additional documentation for FP+ Series.

APPENDIX 8

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28 FP+ Series Operation Manual

8 APPENDIX

8.4 Current Draw and Thermal Dissipation speciﬁcations

The following tables contain information on measured current consumption as well as calculated heat dissipation during normal operation(1/8 rated power); and during extreme heavy duty operation (1/4 rated power).

FP 13000

Level Load Rated Po wer Line Cur rent *2) Watt *1) Thermal Dissipation

115 VAC 23 0 VAC In Out Dissipated BTU/hr kC al/hr

Standby, with re mote power off via Nom adLink 0 0 0 0 0

Powered on, id ling 129 0 129 440 111

Amp (I) Watt

Pink noi se (1/8 rated po wer)

16 Ω / Ch. 120 0 x 2

10.6 5.3 678 300 378 128 9 325

32 Ω / Bridge d 2400 x 1

8 Ω / Ch. 2350 x 2

16.2 8 .1 1083 588 495 169 0 426

16 Ω / Bridged 4700 x 1

4 Ω / Ch. 4400 x 2

26.5 13.2 1856 11 00 756 2578 650

8 Ω / Bridged 8800 x 1

2 Ω / Ch. 6500 x 2

37. 8 18 .9 253 6 1625 9 11 310 9 783

4 Ω / Bridged 13000 x 1

Pink noi se (1/4 rated po wer) *3)

16 Ω / Ch. 120 0 x 2

16.0 8.0 1037 800 237 807 203

32 Ω / Bridge d 2400 x 1

8 Ω / Ch. 2350 x 2

27. 2 13.6 184 0 156 7 273 933 235

16 Ω / Bridged 4700 x 1

4 Ω / Ch. 4400 x 2

48.3 24.1 3419 2933 486 1659 418

8 Ω / Bridged 8800 x 1

2 Ω / Ch. 6500 x 2

58.0 29.0 4243 3250 993 3390 854

4 Ω / Bridged 13000 x 1

Mains conne ctor, 230 V CE version 16 A, CEE7

Mains conne ctor, 115 V ETL version 30 A, N ema L5-3 0P Twist lock

*1) The ampliﬁ er’s PSU operates as a non -resistive loa d, so the calculatio n “Volts x Amps = Watts” wo uld not be correct. Ins tead, measured and speciﬁ ed here is what is known as the “Act ive Power” of the ampliﬁ er providing useful, rea l-world values o f power consumption an d heat dissipation.

*2) Current dr aw ﬁ gures measured at 23 0 V. 115 V ﬁ gures are 230 V ﬁ gu res multiplied by two.

*3) Figures m easured at maximum po wer before ampliﬁ er protectio n and limiter features are en gaged. Typically th is is between 1/4 and 1/3 of r ated power. Note that th e max. power conditi on is very extreme and w ill not occur during no rmal operation. A lso note that the mains bre aker will not be tripped eve n if operation is in exces s of max. ratings.

FP 7000

Level Load Rated Po wer Line Cur rent *2) Watt *1) Thermal Dissipation

115 VAC 2 30 VAC In Out Dissipated BTU/ hr kCal/hr

Standby, with re mote power off via Nom adLink 0 0 0 0 0

Powered on, id ling 92 0 92 316 80

Amp (I) Watt

Pink noi se (1/8 rated po wer)

16 Ω / Ch. 730 x 2

6.8 3.4 4 11 18 3 229 781 197

32 Ω / Bridge d 14 60 x 1

8 Ω / Ch. 14 50 x 2

10.8 5.4 692 363 329 112 3 283

16 Ω / Bridged 2900 x 1

4 Ω / Ch. 2800 x 2

17. 4 8.7 117 6 700 476 1625 409

8 Ω / Bridged 5600 x 1

2 Ω / Ch. 3500 x 2

22.0 11. 0 1 518 875 643 2195 553

4 Ω / Bridged 7000 x 1

Pink noi se (1/4 rated po wer) *3)

16 Ω / Ch. 730 x 2

19.6 9.8 800 487 313 1070 270

32 Ω / Bridge d 14 60 x 1

8 Ω / Ch. 14 50 x 2

33.3 16.6 1455 967 489 16 67 420

16 Ω / Bridged 2900 x 1

4 Ω / Ch. 2800 x 2

39.4 19.7 2705 1867 838 2860 721

8 Ω / Bridged 5600 x 1

2 Ω / Ch. 3500 x 2

39.4 19.7 3088 2333 754 2 574 649

4 Ω / Bridged 7000 x 1

Mains conne ctor, 230 V CE version 16 A, CEE7

Mains conne ctor, 115 V ETL version 30 A, N ema L5-3 0P Twist lock

*2) Current dr aw ﬁ gures measured at 23 0 V. 115 V ﬁ gures are 230 V ﬁ gu res multiplied by two.

Page 29

FP+ Series Operation Manual 29

APPENDIX 8

FP 10000Q

Level Load Ra ted Power Lin e Current *2) Watt *1) Thermal Dissipation

115 VAC 2 30 VAC In Out Dissipated BTU/ hr kCal/hr

Standby, with re mote power off via Nom adLink 0 0 0 0 0

Powered on, id ling 139 0 13 9 47 5 120

Amp (I) Watt

Pink noi se (1/8 rated po wer)

16 Ω / Ch. 660 x 4

10.7 5.6 732 330 402 1371 345

32 Ω / Bridge d 1 320 x 2

8 Ω / Ch. 130 0 x 4

16.9 8.8 122 4 650 574 195 8 493

16 Ω / Bridged 2600 x 2

4 Ω / Ch. 210 0 x 4

25.9 13.5 1914 10 50 864 2949 74 3

8 Ω / Bridged 4200 x 2

2 Ω / Ch. 2500 x 4

32.2 16.8 24 14 1250 11 64 3973 10 01

4 Ω / Bridged 5000 x 2

Pink noi se (1/4 rated po wer) *3)

16 Ω / Ch. 660 x 4

13.6 7.1 114 3 880 263 8 97 226

32 Ω / Bridge d 1 320 x 2

8 Ω / Ch. 130 0 x 4

22.4 11 .7 2096 1733 363 1 238 312

16 Ω / Bridged 2600 x 2

4 Ω / Ch. 210 0 x 4

39.4 20.6 3589 2800 789 2691 678

8 Ω / Bridged 4200 x 2

2 Ω / Ch. 2500 x 4

52.9 2 7.6 415 9 3333 8 25 2 817 7 10

4 Ω / Bridged 5000 x 2

Mains conne ctor, 230 V CE version 16 A, CEE7

Mains conne ctor, 115 V ETL version 30 A, N ema L5-3 0P Twist lock

*2) Current dr aw ﬁ gures measured at 23 0 V. 115 V ﬁ gures are 230 V ﬁ gu res multiplied by two.

FP 6000Q

Level Load Rated Po wer Line Cur rent *2) Watt *1) Thermal Dissipation

115 VAC 2 30 VAC In Out Dissipated BTU/ hr kCal/hr

Standby, with re mote power off via Nom adLink 0 0 0 0 0

Powered on, id ling 134 0 13 4 456 115

Amp (I) Watt

Pink noi se (1/8 rated po wer)

16 Ω / Ch. 320 x4

6.9 3.5 423 160 263 898 226

32 Ω / Bridge d 640 x2

8 Ω / Ch. 625 x4

10.9 5.4 70 0 313 388 132 3 333

16 Ω / Bridged 125 0 x2

4 Ω / Ch. 12 50 x4

18.0 9.0 12 15 625 590 2 015 508

8 Ω / Bridged 2500 x2

2 Ω / Ch. 15 00 x4

22.8 11. 4 15 75 750 825 2817 710

4 Ω / Bridged 3000 x2

Pink noi se (1/4 rated po wer) *3)

16 Ω / Ch. 320 x4

11. 8 5.9 7 71 427 344 11 75 296

32 Ω / Bridge d 640 x2

8 Ω / Ch. 625 x4

20.0 10.0 1402 833 569 19 42 489

16 Ω / Bridged 125 0 x2

4 Ω / Ch. 12 50 x4

37. 3 1 8.6 2748 166 7 10 81 3690 930

8 Ω / Bridged 2500 x2

2 Ω / Ch. 15 00 x4

38.9 19.4 2872 2000 872 2977 750

4 Ω / Bridged 3000 x2

Mains conne ctor, 230 V CE version 16 A, CEE7

Mains conne ctor, 115 V ETL version 30 A, N ema L5-3 0P Twist lock

*2) Current dr aw ﬁ gures measured at 23 0 V. 115 V ﬁ gures are 230 V ﬁ gur es multiplied by two.

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30 FP+ Series Operation Manual

9 TEChNICAL sPECIFICATIONs

Following are the FP+ Series technical speciﬁcations. These ﬁgures are accurate at the time of printing but please note that all ﬁgures are subject to change without notice. For the most accurate and current information available, please visit www.labgruppen.com.

Model

Number of c hannels

Peak total output all channels driven

Peak output vo ltage p er channe l

Max. output cu rrent per c hannel

Max. Outp ut Powe r

16 ohms per ch . (all ch.’s driv en)

8 ohms per ch . (all ch.’s dri ven)

4 ohms per ch . (all ch.’s dri ven)

2 ohms per ch . (all ch.’s dri ven)

16 ohms Brid ged per ch .

8 ohms Brid ged per c h.

4 ohms Brid ged per c h.

2 ohms Brid ged per c h.

Perf orma nce wi th Gai n

THD 20 Hz - 2 0 kHz for 1 W

THD at 1 kH z and 1 dB bel ow clipp ing

Signal To Noi se Ratio

Channel s eparati on (Cros stalk) a t 1 kHz

Frequenc y respon se (1 W into 8 ohms) + 0/- 3 dB

Input Impedance

Input Co mmon Mo de Rejec tion, CM R

Output i mpedan ce @ 100 Hz

Output s lew rate into 8 oh ms

Voltag e Peak Li mite r (VPL), m ax. pe ak out put

VPL, s electa ble per c h. (V )

VPL, s electa ble whe n bridge d (V )

Voltage Pe ak Limite r mode (p er ch.) Hard / Sof t

Gain an d Leve l

Ampli ﬁ er gain se lectab le (all ch annels)

– rear-p anel swit ches

23, 26, 29, 32, 35, 38, 41, 44 dB

Default g ain 38 dB 38 d B 35 dB 35 dB

Level adju stment (p er ch.)

Front- panel pote ntiomete r, detented from - inf to 0 dB

Conn ecto rs and s witc hes

Input co nnector s (per ch. ) 3- pin XLR , elect ronical ly balan ced

Output c onnecto rs (per c h.) Neutrik Speakon or Binding Posts (must be specified upon order). BP only on FP 13000

Output b ridge mo de per t wo ch.’s A+B - Ch. A is signal input source. A+B, C+D - Ch.’s A and C are input source

NomadLink

network 2 x RJ4 5 Etherco n connec tors, IN an d OUT

Intellige nt fans (on /off ) Yes, depend ing on prese nce of out put sign al

Power on/ off and Re mote enab le on/of f Indivi dual swit ches on fro nt-pa nel

Cooling Two fans, front- to- rear air ﬂ ow, tempera ture contr olled sp eed

Front-panel indicators

Common NomadLink

Network; Power Average Limiter (PAL) 2); Power on

Per chann el Signal present / High-impedance; -20 dB, -15 dB, -10 dB and -4 dB output

signal; Voltage Peak Limiter (VPL); Current Peak Limiter (CPL):

Very High Frequency (VHF); High temperature; Fault; Mute

Power

Operat ing volta ge, 23 0 V / 115 V nominal

130- 265 V / 6 5-135 V

Minimum p ower-u p voltage , 230 V / 115 V 171 V / 85 V

Power Avera ge Limite r (PAL)

Yes

Soft st art / Inr ush Curren t Draw Yes / max. 5 A

Mains co nnector 230 V CE: 16 A, CEE7; 115 V ETL: 30 A Twist lock

Dimensions (W/H/D)

W: 483 mm (19”), H: 88 mm (2 U), Overall D: 396 mm (15.6”), Mounting D: 358 mm (14.1”)

Weight

12 kg (26.4 lb s.)

Finish

Black painted steel chassis with black painted steel / aluminum front

Approvals

CE, ANSI/UL 60065 (ETL), CSA C22.2 NO. 60065, FCC

Note 1): Automatic -6 dB gain compensation when bridging channels. Note 2): PAL can reduce the maximum output power to keep the power supply operating safely, and/or to prevent excessive current draw tripping the mains breaker.

Refer to Operation Manual. Note 3): The amplifier will be fully operational at bridge-mode 2 ohm loads, but due to physical constraints in the construction, the max. output power will not be significantly higher than running individual channels and therefore not stated here.

Note 4): Separate 230 V or 115 V versions available. Not selectable on the amplifier.

All specifications are subject to change without notice.

FP 1300 0 F P 7000 FP 10000Q FP 600 0Q

2 2 4 4

1300 0 W 70 00 W 10000 W 6000 W

195 V 15 5 V 15 0 V 101 V

58 Arm s 42 Arms 38 Ar ms 27 Arms

1200 W 73 0 W 660 W 320 W

235 0 W 145 0 W 1300 W 6 25 W

440 0 W 28 00 W 2100 W 1250 W

650 0 W 35 00 W 250 0 W 150 0 W

4700 W 29 00 W 260 0 W 1250 W

880 0 W 5 600 W 420 0 W 2 500 W

1300 0 W 70 00 W 500 0 W 3 000 W

3) 3) 3) 3)

35 dB and V PL: 19 5 V 35 dB and VP L: 155 V 35 dB an d VPL: 15 0 V 35 dB and VP L: 101 V

<0 .1% <0 .1% < 0.1% < 0.1%

<0.0 5% <0. 05% <0 .05% < 0.0 5%

>112 dBA >112 dBA >112 dBA >112 dBA

>70 dB >70 d B >7 0 dB >70 dB

6.8 Hz - 3 4 kHz 6.8 H z - 34 kHz 6 .8 Hz - 34 k Hz 6.8 Hz - 3 4 kHz

20 kOhm 2 0 kOhm 2 0 kOhm 2 0 kOhm

54 dB 50 d B 45 dB 50 dB

19 mOhm 19 mOhm 56 mOhm 56 mOhm

20 V/micr osecon d 2 0 V/micro second 20 V/ microse cond 20 V/m icrosec ond

19 5, 1 70, 140 , 116 , 10 0, 80, 6 6, 54 V

155, 121, 101, 83, 70, 56, 47, 38 V

150, 121, 101, 83, 70, 56, 47, 38 V

101, 83, 70, 56, 47, 38 V

390 , 340, 28 0, 232, 200, 16 0, 132, 108 V

310, 242, 20 2, 166 , 140, 112, 94, 76 V

300 , 242, 202, 166 , 140, 112, 94, 76 V

202, 16 6, 140 , 112, 94, 76 V

Page 31

FP+ Series Operation Manual 31

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 speciﬁed 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 or 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 proﬁt, 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.

Technical assistance and service

International

If your Lab.gruppen product requires repair, contact your Lab.gruppen dealer or distributor, or contact Lab.gruppen by fax or email to obtain the location of the nearest authorized service centre.

Factory service

In the event 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:

Use the original packing.1.

Include a copy of the sales receipt, your name, 2.

return address, phone and fax number, email

address and description of the defect.

Mark the Return Authorization number on the 3.

outside of the packing.

Ship the product prepaid to:4.

Lab.gruppen AB Faktorvägen 1 SE-434 37 Kungsbacka SWEDEN Phone: +46 300 56 28 00 Fax: +46 300 56 28 99

support@labgruppen.com info@labgruppen.com www.labgruppen.com

WARRANTY 10

Lab.gruppen FP+ FP 10000Q, FP+ FP 6000Q, FP+ FP 13000, FP+ FP 7000, FP 13000 Operation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual