Thumper89

Ok so here's the problem...

I noticed sometime ago this odd little "psst/buzz"type noise coming from my left channel
(I run front stage only).I only get this noise when I turn the volume down to zero,when
I switch up from one preset to another,when I switch between CD and Radio and when I
shut the deck off.

Except when I turn the volume down,the noise only lasts for a couple seconds.But when I
turn the volume down its constant.

As well,I found that I have to balance over to the right by +2 to make the sound balance
out.

I have checked wiring and nothing is loose or astray.All wiring is in phase.

The head unit is a DEH-2400 with a 3400 face
Front Stage amp is MTX RT2200X

Any thoughts?

theboy

a bad rca?

Kool

iTrader: (1)

Is the car running when this occurs?

Have you tried muting the inputs on the amp? This can help you isolate where the noise is coming from.

[ October 17, 2004, 10:42 PM: Message edited by: Kool ]

Haunz

iTrader: (3)

Damn stereo gremlins are probably messing with you

switch RCAs from left to right on the amp and see if the noise moves to the other speaker... then try swapping speakers...

That will tell you if its comming before the amp, or after the amp... IMO its probably the amp... (ie always noise on same ch no matter the signal or speaker) or the source...

If thats the case you need a new amp or a new HU to fix the problem [img]tongue.gif[/img]

Edit: ^yes muting plugs can be a very usefull tool for isolating the amp and checking for noise...

[ October 17, 2004, 10:52 PM: Message edited by: Haunz ]

Thumper89

I've tried swapping wires,swapping RCA's and just about everything except muting the plugs..but only because I dont havea clue what that means..

Any other idea..

I'm thinking its in the deck...

And bear in mind...it doesnt matter if the engine is running or not and it never makes this noise while music is on...

Please keep the input coming guys...Its driving me nuts!

maltesechicken

You swapped the RCAs and what?
The problem jumped to the other speaker?
or
The problem stayed there?

Thumper89

Oops....It stayed in same spot...

Ya know...now that I sit and type that I think I just figured it out... [img]graemlins/banghead.gif[/img]

Not the deck...the amp....But what would it be?or would it be something in wiring?

Haunz

iTrader: (3)

I think its probably the amp if you have noise in the same channel no matter what the source or speaker....

Kool

iTrader: (1)

Try unplugging the RCAs completely. Is the noise still there? Then turn the gain up. Does the noise increase in volume?

If the car is off, and the noise is present after unplugging the RCAs, it is probably the amp.

You can try mute plugs though. Mute plugs are basically RCA ends that have the leads connected to eachother. After connecting the leads, plug the RCA ends into the inputs. This will mute the inputs.

If the inputs are muted, and the noise is still present, I would say the amp is almost definately the problem.

Thumper89

I tried unplugging the RCA's from the amp and as soon as the left side was unplugged from the front amp,the noise up front went away,but I could hear a slight noise of some sort coming from the subs.

Now something I didnt think about before is I run RCA's from source to the back and then thru 2 splitters(single female off to two males(two of these)...Is this another possibilty??

Its starting to look more like I was right to start with on the deck...But I want to be 100%...I can't afford to go out and buy a deck right now for quite a while...