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Set the Gain
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Gain LEDs Switch
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Input Level |
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Switch |
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Before beginning, make sure the Gain LEDs switch is set to the “On” position.
1. Initially set all amplifier Input Level switches to the “Hi1” position.
NOTE: If you have connected the
2.Turn all amplifier Gain controls to the “Min” setting.
3.If you have connected an RBC Remote Bass Control (sold separately), set its knob to 3/4 (clockwise) before performing the rest of the procedure. This will allow you to use the control to boost or attenuate the subwoofer after you have completed setup.
4.Play the supplied setup CD through the vehicle’s audio system.
5.Set the audio system head unit’s volume to maximum (all the way up).
6.SLOWLY advance the Gain control setting. The Gain Indicator LEDs will light up:
•Yellow LED = Gain is too low
•Green LED = Gain is OK
•Red LED = Gain is too high
7.SLOWLY advance the Gain control so that the green Gain Indicator LED lights up. If you overshoot and the red LED lights up, turn the Gain control down so that the yellow LED lights up and advance the Gain control SLOWLY until the green LED lights up.
Gain too low | Gain too high | Gain OK |
(increase gain) | (decrease gain) |
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NOTE: If you advance the Gain control all the way and the yellow LED is still lit up, turn the Gain control to “Min,” switch the Input Level switch to the “Low” position and repeat Step 6.
8.Repeat Steps 5 and 6 for all of the amplifier channels. When all Gain Indicator LEDs are lit green, the GTO amplifier gain setup is complete.
NOTE: Set the amplifier’s Gain LEDs switch to the “Off” position to prevent the red LEDs from lighting up continually during normal operation.
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