Help!

[SIXAPPEAL]

Can someone help me please! Since last night, the vocals on my stereo drop out past a certain volume on the deck, and the bass keeps going, when the bass stops the vocals come back in the drop out again, I noticed Alberts who installed my stereo had 6 speakers running off a 4 channel amp! So I disconnected the rear speakers in the doors and now have the splits in the front and the 6x9's on the parcel shelf running off of the amp.. But still drops out after a certain point.

I've played with the gain a bit and it has to be adjusted to every volume if I increase it higher than what I just currently got it working to. Is this the amp or my deck or what?! Please help

My audio equipment consists of the following..

Pioneer Pro-Series Speakers; TS-C160R, TS-D161S & TS-D691S. 2 Pioneer Amps; Mono Amplifier GM-7100M & 4-Channel Bridgeable Amplifier GM-6100F. 2 12" Sony Xplod Sub Woofers, JVC KD-DV6105 Indash DVD Player & JVC KV-M705 7" Indash Monitor

The gains set down to about 4V now.. And still cutting out

[semi]

theres 2 speakers running off 1 channel of your amp?? Sounds pretty suss to me. Would probably mean a 2ohm load on an amp thats designed to be 4ohm stable, and the amp wouldnt be liking it.

[SIXAPPEAL]

Yep! I've disconnected the rears though, so now there's 1 set of speakers running off each channel.. But the amps still cutting out

I'm hoping it hasn't overloaded/overheated something in the amp

[semi]

if you can, try connecting a speaker to the speaker wires on the back of your deck to see if thats the problem. Or you could get something like a mp3 player and hook that up to the amp to see if teh amp is the problem. Isolate the components and it makes it easier to find whats wrong

[StoneX]

theres 2 speakers running off 1 channel of your amp?? Sounds pretty suss to me. Would probably mean a 2ohm load on an amp thats designed to be 4ohm stable, and the amp wouldnt be liking it.

All car audio amps that I know of are 2 ohm stable per channel. It's only when you're bridging that you have to start looking at specs.

Anyway, that is a really odd fault... My splits lose treble at high volume as the tweeter has protection, but as far as I know those splits don't and the other speakers definitely don't. Is it all speakers or just the fronts losing treble?

[phree]

Also make sure that the power and earth wires to your amps are good. Ground wires nice and clean and tight? Fuse clean and tight?

[SIXAPPEAL]

Well, I balanced and faded every speaker, and it seems it's the front right speaker which cuts out, but when that one goes while FAD and BAL is on 0 they all drop out, so might be a loose wire at the back of the deck or maybe on the amp?

[Nobody Actually]

it could be that one speaker. or...........
how old is the amp? has it been setup that way from day one?
if the problem persists have the amp checked out. it may be the amp on its way out.

[StoneX]

I'd disconnect that speaker(at the amp) and see if the others still do it... It is likely to be wiring.

[SIXAPPEAL]

Friend of mines coming over this afternoon to have a look at it with me.. Hopefully it's not a speaker wire from the deck it's just a faulty connection at the amp, but we'll see I suppose.. Thanx for all your help, I'll post up what the coulprat was.

[SIXAPPEAL]

Well we got it all sorted, not sure what it was really.. Definatly something amp related though, gunna keep it going for awhile, if it does it all again will take it back as it's under warranty still