RCA pre-amp outputs? How many required to wire up a system?

Question

Hi all,
How many RCA pre-amp outputs in an mp3/cd tuner are required to connect a system consisting of 2 pairs of speakers, an amplifier and a subwoofer enclosure? (If my amp has 4 channels)

As in, do i connect speakers and subs to the amp and then connect amp to the headunit or can i connect a pair of speakers and a sub to amplifier and then connect other pair + the amp itself to the headunit???

Answer 1

With a 4-channel amp, you'll probably want to run the front speakers from 2 of the amp channels, run the rear speakers from the head unit's speaker outputs, and bridge the remaining two amp channels for the subwoofer.

To do this you'd want a head unit with at least front and rear pre-amp outputs. Ideally you want front, rear and subwoofer outputs so that you can adjust the subwoofer volume from the head unit.

You'll end up with:
-front speakers connected to amplifier, through the head unit's front pre-outs;
-rear speakers connected to the deck
-subwoofer connected to the amplifier, through the rear or subwoofer pre-outs.

Answer 2

the amp connects to the headunit by the RCA all the other is ran power from the battery and Ground then Speaker wires to the speakers or subs also the Remote wire should be ran to the Radio

2 Rca's are needed for each amp if u have one amp then only 1 Rca wire