9
Note: It takes lots of current to make lots of power!
Remember! An electrical circuit is just that... a complete circuit. For current to
travel, you must complete the circuit from the positive terminal to the negative
terminal (which is connected to the vehicle frame). So what ever Gauge wire
you use for power (B+) you must also use for ground (B-).
Note: A 4-gauge power wire needs 4-gauge ground wire!
Use the Wire Sizing Chart! Add up the fuse values on the amplifier(s) then
choose the proper size wire based on the distance from the car battery to the
amplifier location. Again, always use the same gauge wire for the main ground
as you do for the main power. Always make your ground as short as possible
and secure it to a clean solid surface, preferably the vehicle frame.
Mounting your ST-X DSP amplifier
Mounting your Zapco amplifier is easy. Just keep in mind a few guidelines:
• The amplifier can be mounted in any direction, on wood, metal, or carpet
• The metal chassis of the amp can be grounded or left isolated
• The amplifier requires adequate ventilation. Creating power creates heat,
and cooling requires air. Position the amplifier with sufficient surrounding
area for air supply and keep the end plates clear for future access
• Keep the amplifier out of the engine compartment or other locations
that may cause excessive heat or moisture
• Do not mount the amplifier to a subwoofer box or other place that may
have excessive vibration
Setting Input Gains
: Gain pots are not volume controls. Before you first turn on
your system, you should make sure all gain controls are set to minimum (counter
clockwise). After the system is installed and all components are connected; play
a loud track with your head unit at 3/4 to 7/8 volume. While watching the 2-
stage clip LEDs... turn the input gain controls up on the channels you are using
for input until the channel's LED indicators turn from green to red, then back
off just slightly. If you reach a volume that you consider too loud before you see
the red LED, that's OK too. Leave the controls at that level. After you have set
the controls just watch them for through the rest of the song to be sure the red
clip lights don't come back on.
Summary of Contents for ST-X DSP 2021
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