Four types of signs can be used in this manual. The type is closely related to the effect that
may be caused if it is not observed. These signs - from least severe effect to most severe
effect - are:
Notice!
Containing additional information. Usually, not observing a ‘notice’ does not result in damage
to the equipment or personal injuries.
Caution!
The equipment or the property can be damaged, or persons can be lightly injured if the alert
is not observed.
Warning!
The equipment or the property can be seriously damaged, or persons can be severely injured
if the alert is not observed.
Danger!
Not observing the alert can lead to severe injuries or death.
1.2
Important safety instructions
Danger!
The lightning symbol inside a triangle notifies the user of high-voltage, uninsulated lines and
contacts inside the devices that could result in fatal electrocution if touched.
Warning!
An exclamation mark inside a triangle refers the user to important operating and service
instructions in the documentation for the equipment.
1.Read these safety notes.
2.Keep these safety notes in a safe place.
Heed all warnings.
5.Do not operate the device in close proximity to water.
6.Use only a dry cloth to clean the unit.
7.
Do not cover any ventilation slots. Always refer to the manufacturer's instructions when
installing the device.
8.Do not install the device close to heaters, ovens, or other heat sources.
9.Note: The device must only be operated via the mains power supply with a safety ground
connector. Do not disable the safety ground connection function of the supplied power
cable. If the plug of the supplied cable does not fit your mains socket, please contact
your electrician.
10. Ensure that it is not possible to stand on the mains cable. Take precautions to ensure the
mains cable cannot become crushed, particularly near the device connector and mains
plug.
11. Only use accessories/extensions for the device that have been approved by the
manufacturer.
12. Unplug the device if there is risk of lightning strike or in the event of long periods of
inactivity. However, this does not apply if the device is to be used as part of an
evacuation system!
13. Have all service work and repairs performed by a trained customer service technician
only. Service work must be carried out immediately following any damage such as
damage to the mains cable or plug, if fluid or any object enters the device, if the device
has been used in rain or become wet, or if the device has been dropped or no longer
works correctly.
14. Please ensure that no dripping water or spray can penetrate the inside of the device. Do
not place any objects filled with fluids, such as vases or drinking vessels, on top of the
device.
15. To ensure the device is completely free of voltage, unplug the device from the power
supply.
16. When installing the device, ensure that the plug is freely accessible.
17. Do not place any sources of open flame, such as lit candles, on top of the device.
18. This PROTECTION CLASS I device must be connected to a MAINS socket with a safety
ground connection.
Caution!
Use only manufacturer-approved carts, stands, brackets, or tables that you acquired together
with the device. When using carts to move the device, make sure the transported equipment
and the cart itself cannot tip over or cause injury or material damage.
IMPORTANT SERVICE INFORMATION
Caution!
This service information is for use by qualified service personnel only. To avoid the risk of
electric shock, do not perform any maintenance work that is not described in the operating
instructions unless you are qualified to do so. Have all service work and repairs performed by
a trained customer service technician.
1.Repair work on the device must comply with the safety standards specified in EN 60065
(VDE 0860).
2.A mains isolating transformer must be used during any work for which the opened device
is connected to and operated with mains voltage.
3.The device must be free of any voltage before performing any alterations with upgrade
sets, switching the mains voltage, or performing any other modifications.
4.The minimum distance between voltage-carrying parts and metal parts that can be
touched (such as the metal housing) or between mains poles is 3 mm, and must be
observed at all times.
5.
The minimum distance between voltage-carrying parts and circuit parts that are not
connected to the mains (secondary) is 6 mm, and must be observed at all times.
6.Special components that are marked with the safety symbol in the circuit diagram (note)
must only be replaced with original parts.
7.Unauthorized changes to the circuitry are prohibited.
8.The protective measures issued by the relevant trade organizations and applicable at the
place of repair must be observed. This includes the properties and configuration of the
workplace.
9.Observe the guidelines with respect to handling MOS components.
Danger!
SAFETY COMPONENT (MUST BE REPLACED BY ORIGINAL PART)
Safety | en7
1.3
Safety precautions
Speaker system damage and protection of human beings
Power amps provide extremely high power output that might be dangerous for human beings
as well as for the connected speaker systems. High output voltages can damage or even
destroy the connected speaker systems, especially, when the amplifier is operated in bridged
mode. Prior to connecting any loudspeakers, make sure to check the speaker system’s
specifications for continuous and peak power handling capacities. Even if amplification has
been reduced through lowering the input level controls on the amplifier’s front panel, it is still
possible to achieve full power output with a sufficiently high input signal.
Danger!
Danger at the loudspeaker/power outputs
Power amplifiers are capable of producing dangerously high voltage output that is present at
the output connectors.
To protect yourself from electric shock, do not touch any blank speaker cables during
operation of the power amp.
Danger!
The terminals marked with a lightning bolt are hazardous live and the external wiring
connected to these terminals requires installation by an instructed person or the use of ready-
made leads of cords.
Danger!
In case of using the amplifier with speakers including a primary tapped transformer, it is
possible that during operation shock hazard voltages may be present at the taps of the
transformer.
Therefore, the taps have to be insulated sufficiently in accordance with applicable safety
IMPORTANT: Do not modify this unit! Changes or modifications not expressly approved by the
manufacturer could void the user’s authority, granted by the FCC, to operate the equipment.
Notice!
This equipment has 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 in a residential installation. This equipment generates,
uses and can radiate radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications. However, there is
no guarantee interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television reception or receive
audible interference from radio, television or communications equipment, which can be
determined by turning the equipment off and on. The user is encouraged to try to correct the
interference by one or more of the following measures:
•Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
•
•Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
•Consult the dealer or an experienced radio/TV/communications equipment technician.
1.5
Notices
Old electrical and electronic appliances
Electrical or electronic devices that are no longer serviceable must be collected separately and
sent for environmentally compatible recycling (in accordance with the European Waste
Electrical and Electronic Equipment Directive).
To dispose of old electrical or electronic devices, you should use the return and collection
systems put in place in the country concerned.
Copyright and disclaimer
All rights reserved. No part of this document may be reproduced or transmitted in any form by
any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior
written permission of the publisher. For information on getting permission for reprints and
excerpts, contact Dynacord.
The content and illustrations are subject to change without prior notice.
The purpose of this manual is to provide information required for installing, configuring,
operating and maintaining the L Series FIR-Drive Power Amplifier and C Series FIR-Drive
Power Amplifier hardware products.
Read through this manual to familiarize yourself with the safety information, features, and
applications before you use these products.
Digital document
This manual is available as a digital document in the Adobe Portable Document Format (PDF).
You can find information about Dynacord products on the product related information at
www.dynacord.com.
Intended audience
This manual is intended for installers, operators, and users of L/C series powered amplifier
systems.
Short Information
The following table lists products in a family, with CTN (Commercial Type Number) and
identifying product name DESCRIPTION.
The L Series and C Series power amplifier are designed to power professional loudspeaker
system in live and fix installed audio applications such as concerts, clubs, sports venues,
HOWs and many other applications.
Features
L Series
•
Live performance DSP amplifier
Fully integrated professional speaker processing with FIR Drive technology
•
•Market leading acoustic performance and rock solid reliability
•True 2 ohm stability
•Intuitive system control software, makes setup and control easy
C Series
•Installation DSP amplifier, Euroblock connectors
•Fully integrated professional speaker processing with FIR Drive technology
•Market leading acoustic performance and rock solid reliability
•Low Z and 70/100V operation and power saving standby mode
•Intuitive system control software, makes setup and control easy
Unpacking and inspection
3.4
Carefully open the packaging and take out the power amplifier. Inspect the power amp’s
enclosure for damages that might have happened during transportation. Each amplifier is
examined and tested in detail before leaving the manufacturing site to ensure that it arrives in
perfect condition at your place. Please inform the transport company immediately, if the
power amplifier shows any damage. Being the addressee, you are the only person who can
claim damages in transit. Keep the cardboard box and all packaging materials for inspection
by the transport company.
Keeping the cardboard box including all packing materials is also recommended, if the power
amplifier shows no external damages.
Caution!
Do not ship the power amp in any other but its original packaging.
When shipping the power amp, make sure to always use its original box and packaging
materials. Packing the power amplifier like it was packed by the manufacturer guarantees
optimum protection from transport damage.
The power amplifier receives its power supply via the MAINS IN connector. Only the provided
power cord may be used. During installation, always separate the power amplifier from the
mains. Connect the power amplifier only to a mains network, which corresponds to the
requirements indicated on the type plate.
Power
The L Series power button is located on the front of the amplifier panel. The C Series power
switch is located on the rear of the amplifier panel.
L Series
The Power button on the front panel separates the power amp from the mains. Pressing the
Power button turns on the power amp. A soft start circuit compensates mains inrush current
peaks and thus prevents triggering AC mains fuse when switching on the amplifier. Speaker
system switch-on is delayed by approximately two seconds via output relays, effectively
suppressing any possible power-on noise, which otherwise might be heard through the
loudspeakers.
5.2.2
Figure 5.1: Power button on the front panel (L Series)
C Series
The Power/Standby switch on the rear panel is used to turn on the power to the amplifier or
put the amplifier into standby mode. To separate the amplifier from the mains it is required to
disconnect the mains power connection. A soft start circuit compensates mains inrush current
peaks and thus prevents the automatic cutout of the mains from reacting when switching on
the power amplifier. Speaker system switch-on is delayed by approximately two seconds via
output relays, effectively suppressing any possible power-on noise, which otherwise might be
heard through the loudspeakers. PROTECT-LED lights up and fans are at high speed during
this delay. This indicates all protections are working fine.
Figure 5.2: Mains switch on the rear panel (C Series)
L Series and C Series amplifiers have been designed for installation in a conventional 19-inch
rack case. Attach the power amp with its frontal rack mount ears using four screws and
washers as shown in the illustration.
Additionally securing the amplifier at the rear becomes necessary, if the rack case in which the
power amplifier has been installed will be transported. Failure to do so may result in damage
to the power amplifier as well as to the rack case. Attach the power amp as shown in the
illustration using four case nuts and screws. Brackets for securing the power amplifier are
available as accessories.
Figure 5.3: Mounting powered an amplifier in a rack, front (left) and rear (right) showing optional RMK-15
Ventilation
As with all Dynacord
obviously because there is more cold air outside of the rack case than inside. The power
amplifier remains cooler and dissipating the developing waste heat in a specific direction gets
easier. In general, setting up or mounting the power amplifier has to be done in a way that
fresh air can enter unhindered at the front and exhausted air can exit at the rear. When
installing the power amp in a case or rack system, attention should be paid to these details to
provide sufficient ventilation. Allow for an air duct of at least 60 mm x 330 mm between the
rear panel of the power amplifier and the inner wall of the cabinet/rack case. Make sure that
the duct reaches up to the cabinets or the rack case’s top ventilation louvers. Leave room of at
least 100 mm above the cabinet/rack case for ventilation. Since temperatures inside of the
cabinet/rack case can easily rise up to 40 °C during operation of the power amp, it is
mandatory to bear in mind the maximum allowable ambient temperature for all other
appliances installed in the same cabinet/rack case.
Figure 5.4: Power amplifier ventilation
power amps with fan cooling, the airflow direction is front-to-rear,
Blocking/closing the power amp's ventilation louvers is not permissible. Without sufficient
cooling/ventilation, the power amplifier may automatically enter protect mode.
Keep ventilation louvers free from dust to ensure unhindered airflow.
Notice!
Do not use the power amplifier near heat sources, like heater blowers, stoves, or any other
heat radiating devices.
Notice!
Do not use
or exceed +40°C.
Dynacord power amplifiers in an environment where temperatures are below 0°C
Amplifiers
For fixed amplifier installations in a device control room that incorporate a central air-cooling
system or air conditioners, calculating the maximum heat emission may be necessary.
5.POWER ON DELAY - power on delay selection switch.
6.USB type B connector.
7.GPI/GPO
8.POWER OUTPUTS
9.POWER/STANDBY switch
10. INPUT - audio inputs for channels A or B (CH A, CH B).
Fan cooling
The power amplifier has two fans. The fans are switched in three performance-optimized
levels, for example they are not running permanently but the speed of the fans is controlled
The temperatures of the power amp's channels are supervised and monitored individually.
depending on the temperature. That in return ensures very silent operation during idle state.
The ground lift switch allows eliminating hum noise loops. When operating the power amplifier
together with other equipment in a rack case, setting the switch to the GROUNDED position is
recommended. Set the switch to UNGROUNDED, when the power amplifier is operated
together with appliances with differing ground potentials.
USB B connector
The USB B connector is used for remote control configuration and firmware updates. With the
included USB AB cable you can connect the amplifier directly to a PC. To connect multiple
amplifiers use an external USB-hub or range extender.
For firmware updates, amplifier control software, and product related information visit our
website: www.dynacord.com/software
.
Power remote
POWER REMOTE (standby mode) provides a simple way to remotely power-on/off the power
amplifier. Leaving the pins of POWER REMOTE socket open the appliance power is switched
on. When connecting the pins the appliance enters standby mode.
6.7
6.8
Power on delay
The ON DELAY switch at the amplifier rear panel allows selecting the power on delay time.
The On delay table shows possible switch settings and corresponding delay times.
ON DELAYDelay time (in s)ON DELAYDelay time (in s)
The GPI is used to change between two internal device presets. If the GPI 1 or GPI 2 is set to
GND potential, the preset is switched from the original selected preset to the preset set for
GPI 1 or GPI 2.
GPO:
The GPO is designed as a potential-free changeover switch (relay).
If power is on, GPO pin 3 and GPO pin 1 are shorted.
If the amplifier is turned off or a fault condition appears, GPO pin 3 and GPO pin 2 are
shorted.
L Series and C Series FIR-Drive Power
Amplifiers
6.9
6.9.1
Power outputs
L Series amplifier
Cabling with two Speakon-type connectors in Normal mode
The first possibility in Normal mode is to use the two Speakon-type connectors, whereas
speakers have to be connected to pins 1+ and 1– of the sockets. The correct connection is
also indicated at the amplifiers rear panel.
Figure 6.1: Normal mode
Bi-Amp cabling in Normal mode with Speakon-type connector
The second possibility for connecting the speakers when the power amplifier is operated in
Normal mode is to only use the Speakon-type connector CHANNEL A and to connect one
speaker cabinet to pins 1+ and 1–, as described above and the second cabinet to pins 2+ and
2–. Pins 2+ and 2– are only assigned at Speakon-type connector of CHANNEL A. Proceeding
like this facilitates the cabling of speaker systems that are used in active 2-way operation (BiAmp). The correct connection is also indicated at the amplifiers rear panel.
Figure 6.2: Bi-Amp cabling in Normal mode
Speakon CHANNEL BSpeakon CHANNEL A
1+1-Connector1+1-2+2-
B+B-SignalA+A-B+B-
Table 6.2: Speaker connection using Speakon A and B connectors
Cabling with Speakon-type connector in Bridged mode
In Bridged mode both amp channels work in push-pull operation to provide doubled output
voltage.
In bridged mode operation speaker connection has to be established using pins 1+ and 2- of
the Speakon socket CHANNEL A. The correct connection is also indicated at the amplifiers
rear panel.
Figure 6.3: Bridged mode
Speakon CHANNEL A
Connector1+2-
Controls, indicators and connections | en21
6.9.2
SignalBridged+Bridged-
Table 6.3: Speaker connection using Speakon A
Caution!
In Bridged mode operation, it is not allowable for the load connected to all below a value of 4
ohms. Extremely high voltages can be present at the output. The connected speaker systems
must be able to handle such voltages. Make sure to completely read and fully observe power
rating specifications of the speaker systems to be used and to check them against the output
power capacity of the power amp.
Property damage and/or personal injury may occur.
C Series amplifier
Cabling with Euroblock-type connector in Normal mode
See illustration for connecting speakers in Normal mode. The correct connection is also
indicated at the amplifiers rear panel.
Figure 6.4: Normal mode
Cabling with Speakon-type connector in Bridged mode
In Bridged mode both amp channels work in push-pull operation to provide doubled output
voltage.
In Bridged mode operation speaker connection has to be established using pins 1+ and 2-, see
illustration. The correct connection is also indicated at the amplifiers rear panel.
Figure 6.5: Bridged mode
Caution!
In Bridged mode operation, it is not allowable for the load connected to all below a value of 4
ohms. Extremely high voltages can be present at the output. The connected speaker systems
must be able to handle such voltages. Make sure to completely read and fully observe power
rating specifications of the speaker systems to be used and to check them against the output
power capacity of the power amp.
Property damage and/or personal injury may occur.
L Series and C Series FIR-Drive Power
Amplifiers
6.10
6.10.1
Audio input cabling
Audio input cabling for XLR-type connectors
Inputs INPUT A and INPUT B are electronically balanced. The pin-assignment of XLRF-type
connectors is in accordance with the IEC standard 268.
Figure 6.6: Balanced connection of input
Whenever possible, using balanced audio signal feeds at the input of the power amplifier is
always preferred. Unbalanced connections should only be used if the cables are very short and
no interfering signals are to be expected in the vicinity of the power amplifier. In this case,
bridging the screen (shielding) and the pin of the inverting input inside of the connector is
mandatory. Otherwise, a 6 dB drop in level could result. Due to their immunity against
external interference sources, such as dimmers, mains connections, HF-control lines, etc.,
using balanced cabling and connections is always preferable.
Next to its input connector, each channel provides an individual XLR-type connector (OUTPUT
A or OUTPUT B), which is connected in parallel to allow for comfortably daisy-chaining the
audio signal for the connection of additional audio equipment.
Controls, indicators and connections | en23
6.10.2
Figure 6.8: Balanced connection of output (Daisy-Chain)
Audio input cabling for Euroblock-type connectors
Inputs are electronically balanced. Whenever possible, using balanced audio signal feeds at
the input of the power amplifier is always preferred. Unbalanced connections should only be
used if the cables are very short and no interfering signals are to be expected in the vicinity of
the power amplifier. In this case, bridging the screen (shielding) and the pin of the inverting
input inside of the connector is mandatory. Otherwise, a 6 dB drop in level could result. Due
to their immunity against external interference sources, such as dimmers, mains connections,
HF-control lines, etc., using balanced cabling and connections is always preferable.
Figure 6.9: Balanced/unbalanced connection of input
An integrated amplifier and DSP control menu allows the user to select multiple system
settings on the power amplifier. When the power amplifier is powered on the home screens
appears.
Figure 7.1: LCD control and monitoring interface
Preset No: Preset Name
A: 0 dB (Default)Range: Mute, -80 dB to 0 dB
B: 0 dB (Default)Range: Mute, -80 dB to 0 dB
Table 7.1: Home screen
Preset No: Preset Name: If a recalled preset is edited the letter E is shown. Edited presets
can be stored in one of the 50 User Presets.
Channel A or B: Icons in the home screen lines 2 and 3 indicate that the original loaded preset
has been modified.
G = GEQ (Graphical Equalizer) in use
•E = EQ/PEQ (Parametric Equalizer) in use
D = Delay in use
•
Accessing the amplifier DSP control menu
To access the amplifier DSP controls menu, do the following:
1.Push the encoder knob.
The DSP Control menu appears.
2.Turn the encoder knob to scroll through the menu items.
3.Push the encoder knob to select the menu item you want to modify.
The focus advances to the next parameter set.
4.Turn the encoder knob to scroll through the parameters.
5.Using the encoder knob, adjust the parameters to the desired value.
6.Push the encoder knob to confirm the modified parameter.
The parameter is changed to the current setting.
7.Repeat steps 2 through 6 to modify additional DSP and system settings.
8.Select EXIT to return to the home screen.
7.2
DSP control menu
In the DSP menu structure "U_" indicates user defined presets and "F_" indicates factory
settings. When firmware is updated the factory settings may change. Refer to the latest
release notes for further information.
Controlling multiple amplifiers via Dynacord control software: It is recommend to use a powered
USB hub if the user wishes to control amplifiers with one cable to their computer. USB range
extenders can also be used to remotely position the software control interface longer distances
from the amplifiers.
Due to the great number of USB hubs and extenders, it is not possible to verify and test all
brands and models for use with this product.
To find current user documentation, firmware, or software visit our product related
information at www.dynacord.com.
L Series and C Series FIR-Drive Power
Amplifiers
7.3
Factory presets
L Series and C Series amplifiers have a selection of factory presets on board. These are
generic settings to be used as a starting point for configuration that do not require a
dedicated speaker setting, but only some basic sound adjustments. The following content is
based on the first release, future firmware updates might include additional or updated
settings.
NameInput RoutingParameters
F01Linear DualIn A > Out AIn B >Out BAll flat, no links
F02Linear Mono A In A > Out AIn A >Out BAll flat, no links
F03Stereo LinkedIn A > Out AIn B >Out BAll flat, CH A & B linked
F04Sub & Top #1In A > Out AIn A > Out BBW18dB x-over @ 100Hz
F05Sub Stereo #1 In A > Out AIn B >Out BBW18dB Lo-Pass @ 100Hz
F06Top Stereo #1 In A > Out AIn B > Out BBW18dB Hi-Pass @ 100Hz
F07Sub & Top #2In A > Out AIn A > Out BLR24dB x-over @ 100Hz
F08Sub Stereo #2 In A > Out AIn B > Out BLR24dB Lo-Pass@ 100Hz
F09Top Stereo #2 In A > Out AIn B > Out BLR24dB Hi-Pass @ 100Hz
F10LPN StereoIn A > Out AIn B > Out BLPN filter for enhanced LF
Table 7.2: L Series factory presets
NameInput RoutingParameters
F01Linear DualIn A > Out AIn B >Out BAll flat, no links
F02Linear Mono AIn A > Out AIn A >Out BAll flat, no links
F03Stereo LinkedIn A > Out AIn B >Out BAll flat, CH A & B linked
F04HP50Hz-DualIn A > Out AIn B >Out BHi-Pass 18dB @ 50Hz
F05HP50Hz-MonoIn A > Out AIn A >Out BHi-Pass 18dB @ 50Hz
F06HP50Hz-StereoIn A > Out AIn B >Out BHi-Pass 18dB @ 50Hz, CH A &
B linked
F07LPN StereoIn A > Out AIn B >Out BLPN filter for enhanced LF
F0870V SingleIn A > Out A&B Bridged Mode!Hi-Pass 18dB @ 50Hz
C1800FDi
F0870V DualIn A > Out AIn B > Out BHi-Pass 18dB @ 50Hz
F0970V MonoIn A > Out AIn A > Out BHi-Pass 18dB @ 50Hz
F10100V SingleIn A > Out A&BBridged Mode!Hi-Pass 18dB @ 50Hz
C2800FDi and C3600FDi
F0870V DualIn A > Out AIn B > Out BHi-Pass 18dB @ 50Hz
F0970V MonoIn A > Out AIn A > Out BHi-Pass 18dB @ 50Hz
F10100V DualIn A > Out AIn B > Out BHi-Pass 18dB @ 50Hz
Table 7.3: C Series factory presets
Edit factory preset: When a factory preset is recalled and edited this is marked with an E.
Edited presets can be stored in one of the 50 User Presets.
Bridged configuration: If the amplifier is used in a bridged configuration, only channel A is
shown.
Preset: Is used to load or store a device preset. In addition to 10 factory presets there are also
50 user presets available.
AMP Setup: Is used to select between normal operation and bridged operation.
Power amplifier menu navigation | en27
Notice!
Bridge operation requires different cabling.
Routing: Is used to select input signal routing for channels A and B: A, B, or A+B (sum).
DSP Edit:
EQ (Equalizer) for channel A & B: five band adjustable parameters are as shown in table.
Delay set the audio delay per channel A or B individually up to 650 ms. Units can be selected
in ms, meters, and feet in the Options.
GEQ this allows to bypass the Graphic EQ.
Notice!
The GEQ is only adjustable via remote control software.
LP/HP/Xover Freq: Factory presets with preset Hi-Pass/Lo-Pass or x-over frequencies is used
to modify the frequency parameter in the range of 30 Hz to 300 Hz.
Parameters: Select between channels A&B to be linked (all changes on CH A affect CH B) or
unlinked (changes on CH A do not affect CH B).
GPI Config (C Series only): Determines the two presets which can be toggled in-between
using the GPI contact.
Load Monitor: When signal is present the actual impedance per channel is displayed. Open
indicates that no speaker is connected. Shorted indicates a short circuit in the cabling. If the
signal is too low for a measurement it indicates Invalid.
Lock menu: Restricts unauthorized access by locking access to the amplifier in different
options. Using the lock feature affects changes to Front Control, Preset, AMP Setup, DSP Edit,
USB and Reset function with a 4-digit pin code. Use the encoder knob to view the menu/
function you want to lock.
Notice!
Keep your password in a safe place.
To unlock the amplifier if you've forgotten your password requires a service center activity.
L Series and C Series FIR-Drive Power
Amplifiers
Hint: If you lock the front panel control, all menus and parameters that could be accessed are
blocked. The amp can still be accessed from a computer via the USB port. Changes via GPI are not
affected by locking.
Notice!
If the amplifier is controlled via remote control software the first line in the display is showing
Remote Control and the front panel access is locked.
Options: User preferences for brightness, dim levels, contrast, delay units and ambient
temperature (for delay calculation) can be selected.
Reset: Returns the amplifier to the original factory settings. The option Erase User Presets
allows the user to keep or erase the user presets within the reset. Available options for this
selection are: No or YES.
Notice!
Performing a reset erases the user customized settings saved under the Store Preset option.
The 50 user customized settings in the Store Preset option return to <EMPTY>.
Info: Displays the name of the amplifier, the amplifier model (e.g. L3600FD), firmware version
and current ontime. C Series amplifiers have an additional parameter: Standby time.
For firmware updates, amplifier control software, and product related information visit our
website: www.dynacord.com/software
ProtectionAudio limiters, high temperature, DC, HF, Back-EMF, Peak current
limiters, Inrush current limiters, Turn on delay
CoolingFront-to-rear, 3-stage-fans
Ambient Temperature Limits+5°C to +40°C (40°F to +105°F)
Safety ClassI
ColorBlack
Dimensions
(W x H x D), mm483 x 88 x 462.4
Weight18.2 kg (40.1 lb)
Remote Power ON/GPIO
(C Series only)
Power remote via switch, delay time selectable
Floating relay contacts (show protect mode)
Inputs for preset selection
Signal ProcessingFIR Filters, Audio Limiters
Output delay per channel,
31 band GEQ per channel,
PEQ per channel,
Load impedance
AccessoriesRMK15 (rear rack mount kit), Multi Amplifier Remote Control
(MARC) software
Test signal for max. output power according IHF-A-202 (Dynamic-Headroom, burst 1 kHz/20
ms on/480 ms off/low level -20 dBu).
8.1
C Series direct drive load capability
The direct drive load capability is a measure for the total wattage that can be driven in 70
V/100 V operation mode. A load capability value of 1250 watts means that this amplifier can
drive e.g. 50 loudspeakers at a voltage tab of 25 watts. The dB value in parentheses indicates
the delta to maximum modulation. In cases where the maximum modulation is not required
you can use the smaller amplifier model.
This operation mode is not recommended due to the efficiency reasons. Please use the next
smaller amplifier for this mode.
2
Direct drive mode not available for this configuration.
Notice!
100 V: 2 x 2500 W means each channel of the amplifier may be loaded with a maximum 2500
W loudspeaker loads.
For example, 50x loudspeakers per channel, each loudspeaker with a power rating of 50
W/100 W.
(-1.5 dB)
Not available
2
2
Not
recommended
1 x 625 W
(0.0 dB)
Technical data | en35
1 x 1250 W
1
(-1.5 dB)
Not available
2
8.2
Mains operation & resulting temperature
The power drawn from the mains network is converted into output power to feed the
connected loudspeaker systems and into heat. The difference between power consumption
and dispensed power is called power dissipation (Pd). The amount of heat resulting from
power dissipation might remain inside of a rack-shelf and needs to be diverted using
appropriate measures.
Mains operation & resulting temperature tables allow the determination of power supply and
cabling requirements. The tables are meant as auxiliary means for calculating temperatures
inside of a rack-shelf system/cabinet and the ventilation efforts necessary.
The column Pd lists the leakage power in relation to different operational states. The column
BTU/hr lists the dispensed heat amount per hour. Power consumption is direct proportional
for other mains voltages. The following conversion factors are meant for easy conversion: 100
V = 2.3; 120 V = 1.9; 240 V = 0.96.