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-   -   AM frequency causing distotrion? (https://www.caraudioforumz.com/install-related-17/am-frequency-causing-distotrion-8678/)

exxtractor 05-13-2004 02:30 PM

So far still working out some issues, but a new issue happend on my way to work, amp running fron speakers (gain about 1/2 way) use to be lowest level. Well found out now everything is cool listening to a CD, fm radio, but am radio (talk radio/news) the front speakers distort at a moderate SL. The fronts are crossed over at 80 Hz. If i turn the bass signal down it almost disappears. Wondering if I need to raise the cross over to 100 Hz or turn teh gain down on the amp? Anyone run into this before?

Nissan Guy 05-13-2004 04:51 PM

do you have supressor spark plugs, some regular plugs emit a nasty EM field, hence supressors.
Is it with engine off as well?

slow/n\low 05-14-2004 05:45 PM

are you using a class d amp for your subs? if so what brand is it

Paul Niwranski 05-14-2004 08:48 PM

What happens when you turn the steering wheel left and right?

Sassmaster 05-15-2004 05:13 PM

and you do the hokey pokey and you turn yourself around...

Tim Baillie. 05-18-2004 07:43 AM

Do you have neon tubes in the car that are on when the stereo is on ?

In my Accord I used to have my neon all the time with the stereo, the antenna cable runs under the amp rack, the frequency that the transformer ran at induced this horrible noise into the am signal.

JohnnyToronto 05-19-2004 12:59 PM

^ Riceboy :D

exxtractor 05-20-2004 10:29 AM

No no neon tubes, didn't test if it occurred when turning left and right. It seems if I turn the gain slightly down it does not occur as much, however the antenna is on the same side as the amp, so there could an issure there. Its workable right now.

Paul Niwranski 05-20-2004 01:03 PM

AM? [img]graemlins/puke.gif[/img]

George 05-20-2004 07:06 PM

George would like this person to answer the question about using a class D amplifier in his system. George would also like to know more about your charging and ground system in the car.


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