I have a Bazooka AMP 4 chinals, and it has 2 Flow sweachs. one for the frount and another one for the rear speakers.
when I sweach them to Medium or Hight, I can hear Engine noise and bzzz noise..does anyone know how to fix this problem...
Low flow..no noise..
Help please

 

Make sure your RCAs are as far as possible from any electrical power source. If they already are, try wrapping your RCAs with foil.

I've had that problems for months and got rid of the whinning a few days ago. I kept my RCAs at the same place they were but wrapped them in foil and I've got no more noise.

You might want to give it a try

 

or try better quality rca

 

ground the rca's

 

Sorry guys..it's not the Flow sweachs..it's filter sweachs
by the way I have my rca cable far away from anything else.

 

Glad to hear that worked out for ya

 

nonono..the sweachs that I was talking about is filter sweachs not flow sweachs..
I get noise from sweach it to Medium or High except Low.
I still got the problem..help help!!!

 

So you get noise when you hit the switch, and the noise goes away once the switch is no longuer moving no matter what position it's in?

Or do you get noise when you move the switch, and the noise stays till you put it back to Low?

 

the noise stays.
until I sweach it back to Low.
Do you know what could be the problem?
Thank you for your help...

 

Don't know if it's the foil or plain luck, but I've got the best sound I ever had in that car. No more whinning, no more pops. Only great bass, great highs and great overall sound

 

so you think it's the rca cable not good enough and cost the problem?

 

Then, take my first advices. You don't hear it on Low because the sound is too high and is filtered by the Low pass filter

When you're on Highs, then you hear the whinning because the High pass filter sees it as part of the music. So try moving your RCA, make sure it never touch the power cable (even 3 inchs from the amp) Sometime people will run their RCAs the correct way from front end to trunk, but as soon as they reach the trunk, they get messy and leave the RCA too close to to the power source.

So move your RCAs, and then wrap them in foil.

Hope that helps

 

I finally found the problem..it's my Gain....toooooo high..
if I turn it to half way...no noise

 

I am sure that ain't the problem, but if that thaught makes you feel better, then go for it

 

that may stop the bzzzz noise, since if it's too high you might just be amplifying interference (and since it's a bazooka, this is probably likely)
as far as engine noise, you probably just don't notice it anymore.

solution A. get a better quality amp and properly ground ALL connections.