DD Audio DM1000a, Руководство пользователя

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1. Disconnect the negative cable from the car battery.
2. Due to the power requirements of the Amplifier, the +12V
connection should be made directly to the positive (+)
terminal of battery. For safety measures, install an in-line
fuse holder (not included) as close to the battery’s positive (+)
terminal as possible. The fuse ampere rating should not exceed the total
value of the amplifier’s rated maximum current draw. If the fuse is further
than 18 inches (wire length) from the battery you should re-evaluate the
wire and fuse placement.
Run the power wire from the battery to the amplifier. To avoid a potential
short to the body and a possible fire, this cable should never be ran outside
of the vehicle. You will also need to make sure no trim screws or sharp body
metal will penetrate the power cable shielding. Don’t install the fuse yet.
This will be the last thing you do.
3. Connect the ground wire directly to the chassis of your vehicle. The
grounding location should be made on metal as close to the amplifier as
possible. Remove all paint, sound deadener, etc. from the area of grounding
connection. Do not use seat belt bolts for grounding. It is advisable to test the
ground with an ohmmeter. Test between the grounding point and the negative
battery cable to insure a good low resistance connection (<0.5 Ohm).
4. Run the REM Turn-On wire from the an ignition cont12V source.
This will turn “ON” the amplifier remotely when the vehicle’s stereo is turned
“ON”. NOTE IF YOUR RADIO DOES NOT HAVE A +12 VOLT OUTPUT
LEAD WHEN THE RADIO IS TURNED ON, THE AMPLIFIER CAN BE
CONNECTED TO AN ACCESSORY CIRCUIT IN THE VEHICLE THAT IS
LIVE WHEN THE KEY IS “ON”.
5. Run the RCA cables if they will be used for the application or make your
high-level signal connections.
6. Run the speaker wire to the speakers. It is advised that you leave some
extra wire at this point. You can “clean it up” later.
7. Connect the power and ground to the amplifier. Make sure the polarity
(+ and -) is correct to avoid damaging the amplifier. Only after this step
should you install the fuse at the battery.
8. Connect the remote wire from the head unit to the amplifier. At this time you
should turn on the amp and make sure it turns on properly and does not go
into protect.
DD AUDIO / CLASS D MONOBLOCK AMPLIFIER / 13
INSTALLATION (continued)
9. Turn the amp off and connect the speaker wire to the amp. Pay attention to
the polarity (+ and-). If hooked up incorrectly it can cause poor sound due to
phasing issues.
10. Connect the RCA cables or high-level harness to the amp.
11. Double check the amplifier controls to verify they are set correctly for your
system.
12. Now you can turn on the system and begin the fine tuning process. Turn the
amp gain all the way down. Turn the head unit volume to somewhere
around 75%.
13. Now you can tune the amp. Take your time and make only one adjustment
at a time. It may take some time to get the system fully adjusted. During this
time the amp is drawing current from the battery. You should check the
battery voltage from time to time and re-charge it if it gets low. Battery voltage
can affect the way the amplifier performs.
14. You may have to do some slight re-tuning at a later date if you are installing
new speakers at the same time as the amp due to the speakers breaking in.