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DCM2000
1000 Watt Power Amp
CLIP
SIGNAL
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POWER
CHANNEL ONE
CHANNEL TWO
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PROFESSIONAL STEREO
POWER AMPLIFIER
SERIAL NUMBER
120V~60Hz Slow Blow
FUSE 8AG 700VA
+ ––BRIDGE–– +
–
–
SPEAKER
2
SPEAKER
1
GND LIFT
PARALLEL
BRIDGE
LIMITERS
CH1
IN
XLR
PIN 1 GND
PIN 2 POS
PIN 3 NEG
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION - TO PREVENT ELECTRICAL SHOCK DO NOT DEFEAT THE SAFETY
GROUND ON THE POWER CORD - DO NOT REMOVE COVER .
WARNING - TO PREVENT FIRE OR SHOCK HAZARD DO NOT EXPOSE TO RAIN
OR MOISTURE. REFER SERVICING TO QUALIFED PERSONNEL.
FRONT PANEL
1. MOUNTING
A sturdy one piece 12 guage steel face plate accomodates easy transporting along with facilitating rack
installation. The rack mounting holes are designed on ISO standard spacing. Four 10-32 x .5” phillip
machine screws are normally used to secure the amp. Rear support brackets are not required.
2. POWER SWITCH
Check the power amp connections and verify the AC line power source before engaging the POWER
switch. The yellow LED unmistakably indicates that all circuits are properly powered up.
3. CHANNEL LEVEL CONTROL
A precision input LEVEL attenuator is used to adjust the volume levels. Set the controls at 10 or higher to
deliver the amps maximum power without reducing the headroom of the signal source.
4. CHANNEL SIGNAL INDICATOR
The green SIGNAL LED indicators will start to flash when there is a signal present at the channel input.
5. CHANNEL CLIP INDICATOR
The red CLIP LED indicators will start to flash when each channel has reached its maximum output. Occasional
flashing caused by lower bass frequencies is OK. However, consistent flashing caused from higher frequencies
may damage high frequency drivers (excessive distortion). This does not cause damage to the amp.
6. FRONT COOLING VENTS/FAN
Upon rack installation, the rear of the amp must be fully exposed to room temperature air. The sur-
rounding air should not be warmer than 120° or the thermal protection could activate the PROTECT LED.
The front cooling vents are not to be restricted from exhausting the warm air.
7. PROTECT LED INDICATOR
The red PROTECT LED provides the operator with information about the status of the amplifier. The
PROTECT LED can come on under 3 different conditions (when this happens both channels are muted
by disconnecting the output speaker relays protecting your speakers);
1) During power-up, the amplifier stays in a muted state for approx. 3 sec until it determines that
everything is functioning normally (no output shorts or over temp conditions).
2) When the output load draws excessive current or a direct short is detected caused by a shorted
speaker cable or speaker system. Reset this condition by turning the amp off for two seconds and
then on again. Check for shorted cables and the total speaker system impedance connected to
each channel (2 ohms minimum per ch or 4 ohms BRIDGED).
3) Overheating is usually determined when the amp stops in the middle of a performance and the
PROTECT LED comes on. If this is the cause, leave the amp on for the fan to cool the amp down.
The amp will automatically reset within 1 to 3 minutes. The PROTECT LED will turn off when
ready. Check for the following conditions; a) The rear intake air is restricted, b) The intake air is
extremely warm, c) The front exhaust vents are restricted, or d) Excessive speaker load (try other
speakers or remove speakers if you have more than one connected to each channel). Again, the
minimum impedance is 2 ohms per ch or 4 ohms BRIDGED)
REAR PANEL
8. XLR CHANNEL INPUTS AND THROUGHS
XLR balanced inputs helps to reduce hum and allows for longer cable runs from your signal source (mixer,
etc). XLR pin configuration: Pin 1: Grounded through the GROUND LIFT switch, Pin 2: positive Bal. signal
and Pin 3: negative Bal. signal.
9. PARALLEL SWITCH
The rear PARALLEL switch allows you to drive both channels from either input. All signals entering any
input will be available on both channels. This eliminates Y adapter cables. This feature is used to “daisy
chain” one piece of equipment to another. Just plug into the unused INPUT and it will become an output
for other equipment. All connections remain ballanced.
10. INPUT GROUND LIFT
Many times sound systems are connected in such a manner to cause a grounded loop with the inputs
that result in audible hum. The input GND LIFT switch on the rear panel will help eliminate this problem.
If not, another way to eliminate ground loops is to install Carvin’s MTF55 ground lift adaptor between the
amplifier input cable and the signal source which breaks the connection of the ground wire.
11. LIMITERS
To activate the LIMITERS, engage the rear limiter switch. The built-in high quality opto isolator limiters
are recommended to hold down peaks that could cause early distortion. Limiters will help to rise the aver-
age power so that you can get more output from each channel. To check the effectiveness of the limiters
when the channel starts to distort (under the amps full output), engage the limiters and hear the reduction
of the distortion. If the distortion stops, you can turn the channel up for more power. The lower bass fre-
quencies are most affected. WARNING: Do not check in an environment where the sound level could damage
your ears!
12. SPEAKER OUTPUTS
The standard 1/4” SPEAKER jacks are recommended for lower power applications. Twist-Lok connec-
tors are provided for high power connections. The center Twist-Lok is for Bridged output only. Turn the
amp off before connecting your speakers.
13. SPEAKER BINDING POSTS
For other high power speaker connections, use the rear BINDING POSTS to connect your speakers. Wire
sizes up to 7 gauge (50 amps) can be inserted into the binding post “side holes”. Larger cable can be used
with “banana” plugs which plug into the end of the binding posts (remove colored caps). Binding posts are
spaced on ISO standards. Use the two center RED binding posts for BRIDGE speaker connections (see 14
BRIDGE MODE).
14. BRIDGE MODE—
25V/70V DISTRIBUTION SYSTEMS
The “DCM” Series can be operated in bridge mode if you require a 25V / 70V distribution speaker system
or a high powered mono (single channel) amp. With your amp off, push in the rear (recessed) BRIDGE switch
after you have made your speaker connections to the rear center Twist-Lok or RED binding posts (ch 1 is +
and ch 2 is -). No other speaker connectors or binding posts can to be used at the same time!”. The INPUT
and LEVEL is handled by channel 1. Channel 2 is non-operational. The minimum speaker impedance is 4
ohms. CAUTION: The power developed by bridging your amp can destroy most speaker systems!
15. AC POWER
Your amp is designed to run on either 120V 60 Hz or 230V 50Hz depending on the model purchased.
The voltage range for 120V model is 95V to 132V and for 230V model it is 195V to 253V. The rear heavy-
duty AC receptacle will accept a standard grounded AC cord that is designed your country. Be sure to
check your power source before plugging into a grounded (3 prong) outlet. Never defeat the grounded
connection or electrocution may result! Firmly push the cord all the way into its recepticle.
1
WARNING
This product produces high
sound pressure levels that
could damage your hearing.
Use with caution.
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