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1. Power/Protect LEDs: The 2 LED’s located on the side of the amplier provide indica-
tion of the amplier status, the Power LED will light when the amplier is receiving proper
power, ground and remote voltages. The second LED will light when the amp goes into
protection mode.
2. Phase Shift: Use this button to help compensate for time alignment problems. Such
problems usually result from having the subwoofer positioned at a different distance from
the listener than the other speakers in the system.
3. Auto Power-on: The auto power-on function is for high level (speaker level) connec-
tions. When the switch is in the “ON” position, the subwoofer will turn on when there is
a signal input. If there is no signal input, the subwoofer will automatically turn off. If you
prefer to use the remote turn-on function, leave the witch in the “OFF” position.
4. Low Pass Filter: This control permits you to dene the frequency range you want the
subwoofer amplier to receive. The subwoofer will reproduce all sound below the fre-
quency you set.
5. Bass Boost: This control will increase the sound level of the bass frequencies.
6. Input Gain Control: After you’ve installed your system, turn this control to minimum.
Turn the headunit on (subwoofer will turn on via the remote connection) and set the
volume to 2/3 full level. Slowly turn up the subwoofer input gain control until you hear a
small amount of distortion. Now reduce the level until the distortion is completely gone.
The input gain control is now set.
7. Remote Level Control Port: Plug in the included remote level control to adjust the
volume level of the subwoofer independently.
8. Low Level RCA Inputs: Low level inputs are the recommended way to introduce an
audio signal tot he subwoofer if RCA outputs are present on your headunit or other signal
source (such as a sound processor).
9. High Level Input: These inputs, also referred to as speaker level inputs, allow you to
connect to the factory speaker wires. They are called High Level inputs because they
convert the high voltage running through factory speaker wires to one the amplier can
handle. These inputs will provide the end user with clean, well dened sound for optimal
musical enjoyment. Use the supplied cable and wire harness and connect the outputs
properly as shown in the connection diagram in this manual.
10. Power Input Terminal
11. Fuse: Do not use a fuse with a different value than the one provided.
Features
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