i need help on this one

[silvia lover]

after installed the amps and the capacitor. everything seem to be work just fine. but when i'm driving today. i notice that it had a little high pitch noise came out from no where when i turn on the cd player. and i also found out that the farther the gas pedal goes, the higher the noise came out. it's only happened when i was driving. i have no ideals what goes wrong. i'm sure i did a good job on wiring the amps and the caps. even the speakers wire.
it's just anonying when i was driving and listen to the music while the high pitch noise apprear. anyone know what cause it? appreciate for any help.
i can't stay with the noise. pls help me &nbsp;<img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/cry.gif" border="0" valign="absmiddle" alt=':cry:'>

[gfisch]

Thats usually due to a bad ground.
Try runnig the ground from the casing of the head unit to the same place the amp is grounded.

[silvia lover]

well, &nbsp;<img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/wow.gif" border="0" valign="absmiddle" alt=':0'> i will try to ground that somewhere else tomorrow, and see what's happen. and i'll post it up asap. thanks for the info gfisch. btw, have you buy a new car yet? just curious

[DSC]

</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (gfisch @ May 22 2002,04:01)</td></tr><tr><td id="QUOTE">Thats usually due to a bad ground.
Try runnig the ground from the casing of the head unit to the same place the amp is grounded.</td></tr></table><span id='postcolor'>
I'm not much into sound stuff so pardon my ignorance...
Why is it beneficial to ground the head unit in the same place as the amp?

I don't have an amp but my head unit is grounded on the metal peice holding the shift boot to the floor of the car, it's worked fine for several months...

[mrdirty]

</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (DSC @ May 23 2002,09:19)</td></tr><tr><td id="QUOTE"><!--QuoteBegin--gfisch+May 22 2002,04<img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/wow.gif" border="0" valign="absmiddle" alt=':0'></span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (gfisch @ May 22 2002,04<img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/wow.gif" border="0" valign="absmiddle" alt=':0'>1)</td></tr><tr><td id="QUOTE">Thats usually due to a bad ground.
Try runnig the ground from the casing of the head unit to the same place the amp is grounded.</td></tr></table><span id='postcolor'>
I'm not much into sound stuff so pardon my ignorance...
Why is it beneficial to ground the head unit in the same place as the amp?

I don't have an amp but my head unit is grounded on the metal peice holding the shift boot to the floor of the car, it's worked fine for several months...</td></tr></table><span id='postcolor'>
Grounding stereo components in one location prevents ground loops. It has something to do w/ the difference in current draw causing distortion.

U should put grounds right beside each-other but not on top of one another (can't remember why).

It sounds like your problem is partly that your power cable is too close to your signal cables (rcas). &nbsp;Move them away to get rid of the ascending whine. If they have to cross one another then do it at a 90 Deg. angle.

What's happening is that the signal cable is picking up energy from the electro-magnetic field around the power cable.

[mrdirty]

</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (DSC @ May 23 2002,09:19)</td></tr><tr><td id="QUOTE"><!--QuoteBegin--gfisch+May 22 2002,04<img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/wow.gif" border="0" valign="absmiddle" alt=':0'></span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (gfisch @ May 22 2002,04<img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/wow.gif" border="0" valign="absmiddle" alt=':0'>1)</td></tr><tr><td id="QUOTE">Thats usually due to a bad ground.
Try runnig the ground from the casing of the head unit to the same place the amp is grounded.</td></tr></table><span id='postcolor'>
I'm not much into sound stuff so pardon my ignorance...
Why is it beneficial to ground the head unit in the same place as the amp?

I don't have an amp but my head unit is grounded on the metal peice holding the shift boot to the floor of the car, it's worked fine for several months...</td></tr></table><span id='postcolor'>
It all depends on how much you are amplifying the signal and how strong your head-unit signal is. If you have a weak signal and are running huge amps then you will probably hear more distortion than a strong signal and smaller amps.