HELP!! Sub/amp problem

HELP!! Sub/amp problem

I wired up my car for my amp yesterday, but didn't get to testing it until about 10 minutes ago.
Powered it up, set up everything on my deck (sub out etc/etc). powered up the amp, and the sub is putting out almost NOTHING (even with volume and output and gain cranked).
Changed out the interconnects - same thing
changed out the speaker cable - same thing (even tried another speaker, so it's not the sub)
Checked all the wiring, ground is fine (to brake light mount). turns on fine, internal fan is working, lights up etc/etc. Fuse is good (inline and on amp)

Just can't figure it out. Does anyone have an idea?

Anyone??

I'm going to put in another amp when I get a chance to see if that is the problem

most likely your amp may be busted.

X

well, your amp is powering up, so i dont think it would be busted.

Not necessarily, it can still power up and have the audio channels busted.

X

hmm true. iforgot about that.

well it powers up. lights up (power and other)
get a little bit of sound (even if low or cranked)

reverse the polarities?

as in negative to positive,positive to negative


reverse the speaker wire

disconnect everything and do it one by one again?

i checked the polarities on everything about 10 times to make sure.
changed out the interconnects, that didnt do it. changed out the speaker wire -> same thing.
Tried another speaker. tried new speaker cable.
The only thing that I can think of is that there isnt a good ground. I'll give it a try tomorrow when it's light out. If not, guess I'll either have to sell my sub or get a new amp. kinda pissed right now about the whole thing.

he he he that's how it goes sometimes... I love all electronics but MAN, can they be frustrating