I just installed a 2 channel 4 ohm amp with 2 10 inch 4 ohm subs. I am using my factory head unit and tied in a LOC. The LOC RCA's were not red/white they were labeled L and R so I just matched them up on the amp. I believe the white was L.
I switched the LPF to on. When I turned on the stereo I cant feel the subs at all, the amp is on and working but just not putting out the correct power.
The amp worked well with a aft market CD player and LPF off so I'm assuming something isn't set up correctly.
The car was not started when I tested it but, I would assume it could power the amp for a short amount of time at least to test it. The amp is putting out about 170w to each speaker.
There is an adjust ment on the back that I am not sure what it does. It says 2 4 6 03v .05 and 1. There is also an adjust ment on the LOC itsself that I am not sure what does. Any help woudl be appreciated.