ive put a new amp in my car to run my speakers but ive got like engine noise cuming through them any ideas what this could be?

 

could be a bad eirth to the amp

 

Is the power lead and remote to the amp seperated from the RCA leads? ie power and remote up one side and RCA leads up other side of car.

 

yea there separate im thinking the earth could be bad but i used the same earth for the old amp i had and no problems

 

just make sure its nice an clean mate

 

wot the earth?

 

up

 

you need a supressor to cut out the noise

 

lol very funny

 

It's likely to be noise from the alternator on the power supply - A supressor is the way to go, but I wouldn't know where to install it as my amps have always given a clean signal.

 

like one of these?

http://cgi.ebay.co.uk/CAR-AUDIO-TUNE...d=p3286.c0.m14

ive never had the noise myself ether only on this amp is it doing it

 

For that price you can't really go wrong if it turns out to be something else

 

Which way round did you connect the amp up? Did you plug the rca's in first, then attach the power cables, or the other way round?

 

yea i know worth a try just gotta wait 7days now tho lol




i plug the rca's in last y would this make a diffrence?

 

If you plug the rca's in first, then when you connect up the power, it can send a stray surge up the rca's, which will blow the earth track inside the headunit, which will give u a bad whine. RCA's are always last on, first off.

But as you said you did it that way, so you should be fine. If by any chance its a pioneer headunit, earth tracks are really fragile on them so blow proper easy!

 

yea i put it on last and made sure i had a good earth but still getting this problem so will try this suppressor i bought see if this sorts it out

 

have you got it sorted yet m8?

also in a VW i had it was a bad eirth to the head unit that made the same noise your on about

 

This can normally be down to a few things but more specifically its usually down to the quality of the amp and or the rca leads - the feedback is a whine you get from the alternator (used to be a big problem years ago with the poorer quality items available back then but not such a problem now)

What make is the amp ? and are the RCA leads a decent quality as well ?

As mentioned before it can also be something as simple as a bad earth as the whine is sometimes described as an "earth loop"

If all else fails then a noise surpressor is the way forward but again get a decent quality one cos a lot of the cheap ones dont do alot.

 

nah its not sorted ive ordered a suppressor just waitin 4 it to arrive erm i cant remember what amp it is its only a small one and not a make ive herd of b4.

i know on the head unit someone has cut the normal plug off and just rejoined it together so maybe thats the problem bad earth on thee head unit?

 

the amp's a mozfit one not a make ive herd of and i think the rca's where cheap ones from north wield lol