RUBlCON404
KEY TO CALLOUTS
1. Power LEO - Indicates amplifier power, either in High Power or Auto High
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2. Subsonic / Hawkins Bass Control Switch - “SUB SONIC” to engage the Sub Sonic filter at 13 Hz. ‘“Hawkins Bass Control” to engage the high pass filter @ 45 Hz with variable boost (Q) for optimum bass for any chan- nel in Low Pass.
3. XOVER Switch - (Channels l&2) Select “L.P.” for use with the internal low pass filter, “IN” for use with the internal high pass filter, or “OUT” for use with external crossover.
4. Channels 3&4 INPUT SELECT - Selectable inputs from internal (from channels l&2) or external (from channels 3&4 local RCA inputs).
5. XOVER Switch - (Channels 3&4) Select “L.P.” for use with the internal low pass filter, “H.P.”for use with the internal high pass filter, or “OUT” for use with external crossover.
6. Inputs - Right and left channel RCA inputs for channels 3&4.
7. Input LEVEL - Channels 3&4 independent left and right input level control.
8. High Pass Control Adjustment - (Channels 3&4) crossover frequency control for the internal high pass filter.
9. Speaker Connection Terminal - Speaker connections for Ch’s 3&4.
10. Inputs - Right and left channel RCA inputs for channels l&2.
11. Input LEVEL - Channels l&2 independent left and right input level control. 12. High Pass Control Adjustment - (Channels l&2) crossover frequency
control for the internal high pass filter.
13. Low Pass Control Adjustment - Crossover frequency control for the internal low pass filter. Applies to any channel with the low pass filter engaged.
14. Hawkins Bass Control “Boost” Adjustment - Varies from 0 to +9 dB of boost when the Hawkins Bass Control is engaged. Note: Applies to any channel with the low pass filter engaged.
15. LINE OUTPUTS - Full range outputs to external amplifier. Note: Signal is driven from channel l&2 inputs.
16. Speaker Connection Terminal - Speaker connections for Ch’s l&2.
17. REMOTE - Remote
18. GND - Main ground connection. Bolt to a clean chassis point in the vehicle.
19. +12V - Connected to a fuse or circuit breaker, then to the battery’s positive terminal
20. Main Fuse - Main power supply fuses.
21. Stereo/Mono Switch - (Channels l&2) Select “MONO” for bridgedmono output (use right RCA input only). Select “STEREO” for stereo output.
22. Stereo/Mono Switch - (Channels 3&4) Select “MONO” for bridged mono output (use right RCA input only). Select “STEREO” for stereo output.
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