Bad Head Unit?

[Bentobaku]

I am running a self install system for past 6yrs with no problems. Suddenly about a month ago my subs stopped working. After testing here is what I found:

Set up:

Sony Explode Head unit

independent 4guage Power line x2

x2 1.0 farad power caps

Directed 750w amp connected to MTX subs 12'

Bazooka 800w amp connected to Sony Explode 12'

everything is grounded to a different floor bolt

Head Unit--->RCA/REMBazooka---->Directed

Ok so here is the noodle scratchier. If you take either amp out of the system via fuse or RCA either amp still wont run. There is some sound coming out of subs. IF you plug just either the red or white RCA in the amp works fine but the second you plug the second in the amp cuts back out. This happens on both amps. When just one RCA line is connected the sub outputs full power. I also have tryed replacing the RCA coming from head unit.

At this point I am thinking something is bad in the head unit. But I dont have much $ to play test stuff.

But as stated this setup has worked flawless for well over 6yrs.

any help is appreciated.

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[audiobaun 5,000+ posts]

Maybe the cap is no longer any good?? Try removing the cap and see if that may be the issue??Will check back on the post see if that was helpful to you??If not there are other options to consider. May take a little to find the issue,but may be worth it and save some money too.Patience too

 

[audiobaun 5,000+ posts]

Possibly bad coil on one of your subs also?? Pull them out and check to see if coils are in tact or not??