Connecting 5 channel amp to 4 channel deck

[Kade]

Pioneer FH-X700BT has a front RCA out and switchable sub/rear out. I want to maintain all 4 channels for balance and fading, but want to add a sub with the use of a 5 channel amp. What are my options?

[MrSkippyJ]

The amp can probably work on front and rear inputs only. But unless you have some external sound processor you aren't getting balance and fade and sub from front/rear RCAs.

[SIDE SHOW]

rca splitters on the rear rca out from the headunit

[ROLEXrifleman]

most 5 channel amps take 4 channels of input and split off the rear to get the 5th channel input. So unless the 5 channel amp you have accepts front rear sub inputs you may not have control of the sub output. There may be some 5 channel amps out there that have a "bass" knob buy i don't know of any off the top of my head.

The best answer though is to get full use out of the 6 channels of output your radio has is make sure you have 6 channels of amplifier input. 3 two channels, 1 four channel and one two channel, Two 2 channels 1 mono block...... you get the picture

[MrSkippyJ]

He only had 4 channels of output from his radio. no way he can do a 5 channel amp and retain the use of fade/balance without affecting the sub channel.

[Kade]

most 5 channel amps take 4 channels of input and split off the rear to get the 5th channel input. So unless the 5 channel amp you have accepts front rear sub inputs you may not have control of the sub output. There may be some 5 channel amps out there that have a "bass" knob buy i don't know of any off the top of my head.

The best answer though is to get full use out of the 6 channels of output your radio has is make sure you have 6 channels of amplifier input. 3 two channels, 1 four channel and one two channel, Two 2 channels 1 mono block...... you get the picture

The amp I had picked out has 6 channel inputs with bass knob control. I see what you're saying in your second paragraph, but I only have 4 RCA outs. 2 of them function as sub OR rear. I can't use 6 channels all at once.

Now that I think about it, when I fade and balace with a cable splitter installed, the sub output of the amp would be affected, wouldn't it?

[Kade]

For example...Something like this wouldn't work?

http://www.sonicelectronix.com/pictures_new.php?id=18601&picture_id=-1

http://www.sonicelectronix.com/pictures_new.php?id=46587&picture_id=1186624

[SIDE SHOW]

split the rear channel rca.... just wont have sub control (must all be done and setup at the amp)

[MrSkippyJ]

if he splits the rear channel, the sub is affected by the fade/balance though. That is what he is trying to avoid. He can't avoid that using that amp and headunit.

[MrSkippyJ]

For example...Something like this wouldn't work?

http://www.sonicelectronix.com/pictures_new.php?id=18601&picture_id=-1

http://www.sonicelectronix.com/pictures_new.php?id=46587&picture_id=1186624

Those won't do what you want it to.