new amp making sounds... please help

tommy.l · Post by **tommy.l** » Mon Jun 29, 2009 7:31 pm

i got a crossfire vr 404 for my memphis m 6x9s and 6.5s. i got it all hooked up and its making a loud screeching kinda noise non stop thru the speakers. and also if i flash my brights it makes a thump through the speakers. i rechecked all wires and connections and there are fine and ive also tuned all of the filters and gains. its pretty annoying. can anyone tell me why its din it and what i can do to make it stop

NorthQuad · Post by **NorthQuad** » Mon Jun 29, 2009 9:02 pm

Are your rca's running parallel with the power wire to the amp? Like, are the rca's and power cable running side by side all the way to the amp?

tommy.l · Post by **tommy.l** » Mon Jun 29, 2009 9:24 pm

yeah basically the whole way or within an inh of each other. im guessi thats not good?

Ryan from Ohio · Post by **Ryan from Ohio** » Tue Jun 30, 2009 3:16 am

Whats the chances, two amps, similar issues, same car.

Its the head unit.

Re ground it. Check all wiring there.

If it doesnt go away try another head unit.

Its not the amp. You wont get two bunk amps from two different companies. The odds are not high enough...

NorthQuad · Post by **NorthQuad** » Tue Jun 30, 2009 11:15 am

tommy.l wrote:yeah basically the whole way or within an inh of each other. im guessi thats not good?

It's caused interference for me in the past. So I always run the power down one side of the vehicle and the rca's down the other side. You can give it a shot and if it doesn't work you can cross it off your list.

Tim · Post by **Tim** » Wed Jul 01, 2009 5:16 pm

Ryan from Ohio wrote:Whats the chances, two amps, similar issues, same car.
Its the head unit.
Re ground it. Check all wiring there.
If it doesnt go away try another head unit.
Its not the amp. You wont get two bunk amps from two different companies. The odds are not high enough...

Im with ryan on this, I would def. recheck the grounds.

Tim