whineeeee

[fox_racin4]

alrighty so i picked up the atomic 7k andddd got it all hooked up and playing

i was in backseat and heard a whine comming from subs so i unhooked the sub RCAs thinking it was a ground loop and it was still there even without the RCA in the amp

should i be worried?

its not like.. loud i cant hear it in front seat but if im in the back seat i can hear it with volume all the way down

[BeachJoshua]

So your amp is sending a signal even when nothings going into it, is that what you are saying?

[fox_racin4]

yes no RCA plugged in just power

i tried re grounding as well

i was told it could possible be some sort of filter?

[Boon]

Could be a dodgy output filter... or dodgy input op-amp... or drive circuit on the way out.

Are you sure it's the subs, not the amp itself humming?

[fox_racin4]

positive its from the subs its not loud but if i stick my head in the back seat i can hear it

the thing that confused me is it does it even without any RCAs plugged into it

[P4killer_]

i had a SAZ1500D do this on me, exactly what you're describing soon after, she was kaput,,, look out

edit: as soon as the remote clicked the amp on, it was like very quiet untill it was a constant noise a few sec after almost like a dog whistle

[Bigg Boy]

I had an amp start doing that, couple min after I noticed it, amp went and sent straight dc power to my woofers.

[Boon]

That dog whistle sound is either a loose output transformer or the sound of high pressure smoke pissing out the side of your MOSFETs.

Either way, not ideal.

I dunno if this is what OPs problem is. Whistling amps don't last long.

[P4killer_]