Speakers are whistling at me

**scott1e** · 21-10-2006 05:32 PM

Hi there,

I recently blew my in-line fuse for my amp/sub in the boot and have since been having major static in my speakers..

The problem was that my red power lead had popped out of its place on the amp and touched the metal on the amp making my speakers go insane..

I have since replaced the fuse but now I am getting a similar ammount of static, as well as this weird whistling sound everytime my car revs..

The pitch of the sound increases as the revs go higher and I cant even hear the sound when the revs are low..

My power lead, remote wire and speaker cables are all running down the same side of the car but this has never been a problem until now..

Does anyone have any ideas/suggestions?

Cheers,
Scott

**venus** · 21-10-2006 05:41 PM

scott sounds like you need a noise filter, you can get 1 from any sound shop or even supercheap and change your power lead to run down the opposite side to your rca's that should fix it for you

**scott1e** · 21-10-2006 06:28 PM

Noise filter..

And where abouts in the circuit does that fit in..

Cheers for your suggestion but do you have any idea why the problem has only happened since the latest blow?

**venus** · 21-10-2006 07:49 PM

head unit, noise filter, rca's.

it was probably doing it before but you hadn't noticed...

**stormridah** · 22-10-2006 12:34 AM

Check your grounding points
Could be a few other issues
Also try to run your RCA's and power cable on opposite sides of the car by memory it has something to do with the EMF coming out of the cables

if that doesnt help i saw an article on caa that should help you

http://www.caraudioaustralia.com/for...howtopic=42644

**marte** · 22-10-2006 04:18 PM

you could of blown your rca cables, or
you've blown your rca output,
possibly the rca grounding is loose.

Or ur hoping for this that u just need a new groudns cable.

**stanleym** · 23-10-2006 09:08 AM

Originally Posted by scott1e

Noise filter..

And where abouts in the circuit does that fit in..

Cheers for your suggestion but do you have any idea why the problem has only happened since the latest blow?

.... i not sure but i would think behind the head unit???
can any1 clarify this

cheers

**marte** · 23-10-2006 02:02 PM

updated my last post ~

**scott1e** · 23-10-2006 02:48 PM

Hmm..

Grounding for the sub looks fine.. Wouldnt have a clue where the grounding for the RCA's is..

From listening then.. It seems only the two front tweeters and two rear (stock 16 year old speakers) are making static noise..

Im not too knowledgeable on the RCA's to the two front speakers but im trying to take the door off now anyway.. and am struggling with that even lol

**marte** · 23-10-2006 02:54 PM

the grounding for the rca is in the actual head unit or in the brain.
Ur tweets and rears connected to an amp yeah?

**scott1e** · 23-10-2006 03:31 PM

Tweets and rears are not connected to the amp no..

Front splits are straight from the headunit, as are the tweeters.. Stock back speakers would be the same I assume...

The guy who installed the headunit has bundled all the cords at the back of the headunit together and as such I cant seem to find the grounding cord, or where it goes to..

Another problem is when the I set the Volume from off (or 0) to 1 or any other volume above that there is a quick doof on the speakers..

So when the volume is turned on, on comes the static, and there is a quick doof sound from the speakers and sub..