guys,

i changed my amp yesterday to a 1600w 4-chan amp coz my old one not working ade..

the problem is, now whenever i accelerate, there's a slight humming sound (like the sound of someone whistling). whenever i accelerate harder, the sound also follows the pitch of my engine.

before i changed the amp, this did not happen... how do i solve this? hope any of u can advice me on this..thanks..

check ur car's grounding.. they didn't do the grounding well when they install ur amp.. and there is a chance that cabling too..

make sure that do not let them to add a suspressor.. because it will decrease ur amp's performance..

sorry but what's a suspressor?

yeah, my friend recommended to put grounding wires.. so this should solve the problem la?

Lol same problem that I have earlier. But after rewired my system the problem solved.

More info:

http://forum.lowyat.net/topic/372204

ur gain in ur amp might be too high

the amps grounding was not done properly that might have caused this....

spot on.. did the rewiring and the sound disappeared! cheers

good to hear that........

Normally ppl connect the grounding from AMP to which part of ur car? I'm driving iswara and i connect to the metal beside my sit.....feel like my car no power when accelerate after i install my AMP....thinking might be grounding problem....

I have the same problem oso..i rewired the whole system already... sounds dissapear..but now another sound arise...got like clicking sound... like those sound of a tasers

I put a small transformer before the AMP. It worked

Izzit the sound like aeroplane?

yep...i put supressor but it wil smell like burn after 1 sound pioneer player(vol at 33) y ha?rewiring ok...big power for grounding 2.. any gud contact point in rear kelisa pls..

Basic principle here is always use the same size wire for the ground & the positive wire from the battery & the ground wire installed rigidly to the chassis(make sure you sand-paper or grind areas) with a shortest possible wire. My 2 cents only.

hi power amp must separate cable line.. power cable left side.. rca right...try it or buy rca isolator.. rm 25 to 30... pudu shop