i have no idea, thats why i am asking you guys, lol this is what it says
Level (GAIN) Control Setup:
Ensure that the Level is turned completely to the left prior to turning the system on. Next you should insert a CD or cassette that you are familiar with
to use as a reference, and turn the head unit volume control to about 80% of its full setting. The system sound level will of course be very low, and
the following procedures will help you to match the amplifier input sensitivities properly to the head unit output signal level.
It is important to match the amplifier
LEVEL input sensitivity to the Radio/CD output sensitivity. This can be located in the Radio/CD manual.
If the Radio/CD output sensitivity is 2 volts, then adjust the amplifier
LEVEL input to 2 volts.
If you are not sure what the Radio output sensitivity is, follow these general guide lines:
Turn the level control up slowly, till you hear distortion, then back off a few degrees on the control. If at any point your amplifier goes into protection,
you will need to turn the Level to the left a bit and then try again. If you reach a point where the output does not increase, stop turning the Level
control to the right as the amplifier/subwoofer combo has reached its maxx output in this application.
