Hey guys, well after searching for several hours i came up with minimal info that i need. my system that ive been working on for the longest, is practically done. but i have some after problems. i have a noise whenever i have the system on and my headlights on. its not static but it sounds like high voltage and will not go away until i turn off the lights or the system. thats problem number one. i will post pics of my layout ( which took me a WHOLE hour to make on stupid MS paint!)

also on the pic, amp 'A' has 4 channels. but it has two sets of RCA OUTPUTS, not inputs. i thought that if i splice the RCA with a splitter it would work but for some reason 2 channels dont wanna give me sound. hmmm.....

 

...

 

my list of stuff and color key:

Pioneer HU 50x4.

Alpine component speakers 5 1/2"

pioneer 3-way speakers 5 1/2"

kicker solo baric L7 12" in bandpass enclosure

1 farad capacitor digital

kicker KX200.4 AMP

Kicker KX400.1 AMP

now the trick is the wire from the battery is 8 AWG with a 50 amp fuse in BTW. i runned it throught the capacitor and into a distributer to split it into two then i could have 2 sources of power for both amps. i dont know if thats the problem.

COLOR KEY:
red=power
green=ground
purple = RCA

 

UPDATE
forgot BLUE=remote.

 

not enough juice maybe... alternator.. that was my problem before...it also could be the ground... try grounding somewhere else... get a good ground... it also could be interference where are your wires running... might have to move them ... that's my experience...

 

bump

 

I had a similar problem, but mine was the complete opposite though. I had a whine when the key was on ON with the headlights off. The whine would go away as soon as I would put the headlights ON.

I tried everything, and I mean everything. I grounded the amps to different spots, I tried different RCAs, I tried a different deck, I tried different amps, and so on. I even ran the RCAs straight accross the car (Driving around with RCA beside your shifter ain't all that great). But the whine would always stay.

Turned out my RCAs were picking up noise at the source. The back of the headunit is pretty deep into the dash. If you look closely, you'll see a whole bunch of wires back there.

Take the deck out leaving it connected and playing
Move your RCAs around in the deck brakets area.
Sometime you'll notice higher pitched whine, sometime lower, and at some point, you locate the perfect spot. (Anyway, that's how I fixed my problem)

 

thanks dude

 

i had a question about your setup. you have a purple line going from amp A to amp B. what is this for? it looks like amp B is a two channel and the purple line from your HU is the RCA's to amp B which is fine. most likely the sub output for the HU. now you have 4 black lines going from the HU to amp A which i am going to say are your high level inputs to the amp. why do you need a 4 channel amp if you only have 2 speakers hooked up to it? were you planning on running the speakers hooked up to the HU to the 4 channel too?

if i were you i would rewire the RCA setup you have because it doesn't look right to me.

your deck only has one RCA output i presume judging by the picture? if that is the case, run that one RCA to amp B. next, run all the high level speaker wires to amp A and then all 4 channels will work. i don;t think amps can mix and match low level (RCA) and high level (speaker lines) inputs and that is the reason your only getting output on 2 channels. don't worry about connecting the two amps together with a single RCA. and certainly do not try splitting a signal to a 4 channel amp, beause it will ruin the purpose of have a 4 channel.

last, buy a new deck with 3 sets of preouts. you spend an assload on the sub so you should have a decent deck to back that up/

correction: i confused the L7 with a JL W7. eitherway, you have very nice amps and sub, so get a good head unit (entry level pioneer isn't going to cut it)

 

Anytime Hope that fixes your problem.

Looking at your drawing, there is something else you can do to narrow down your search. Make your sub play high frequency for a few minutes and see if your sub is giving you that same whining sound.

If it doesn, you'll know the problem is between your sub's amp and the HU. If it doesn't you'll know the problem is after you'r sub's amp

Hope that helps as well

 

RCA goes from the HU out to sub's amp IN.
Another RCA goes from sub's amp Out to Component's amp IN
I've got my setup hooked up that way, and it works perfectly

 

oh of course that will work fine, but in the case this guy has, look closely. i was confused why he has only 2 speakers coming off of the 4 channel, and why there are high level inputs AND RCA inputs to the SAME amp.

 

You're totally right on that one

 

i dont understand what u mean? i didnt label high level outputs on my amps in the pics cuz i didnt use them at all. the 4-channel amp has two sets of RCA INPUTS, i dont know why but for this reason im having trouble because only two channels work, and the other dont. even when i have the RCA splitters on the signal so i can 'fulfill' both inputs, it still wont work.