Lab.gruppen FP+ Series FP 10000Q, FP+ Series FP 6000Q, FP+ Series FP 13000, FP+ Series FP 7000, FP 13000 Operation Manual
...
FP+ Series:
Dedicated Touring Amplifiers
Rev. 1.0.4
Item no. OM-FP+
Operation Manual
2 FP+ Series Operation Manual
1 CONTENTS .................................................................................................................................................2
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
4
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
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
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
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.
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.
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
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
2x
2x
2x
2x
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
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
MUTE
SIG -20 -15 -10 -4
VPL CPL
SIG -20 -15 -10 -4
VPL CPL
HI-IMP
HI-IMP
HI-IMP
HI-IMP
CLIP
CLIP
CLIP
CLIP
VHF
TEM
VHF
TEM
VHF
TEM
PWR
PA L
FP10000Q
-10dB
-inf
0
-10dB
-inf
0
-10dB
-inf
0
-10dB
-inf
0
channel
A
B
channel
C
channel
D
channel
FP SERIES
R
PO W
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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