hmmm...ok. do you have more than one pair of RCA outputs on your headunit (even if they are running to another amp)? try connecting those to the input on the sub amp and see if it sounds better. if it does, youve burnt out the original set of RCA outputs you had. theres three possible causes to the problem youre having:

1) the signal being delivered to the amp is too low to properly amplify with any results. this would be caused by a low headunit volume level (duh) or a low voltage being sent by the headunit (to the amp), which could be a result of bad outputs on the headunit.

2) the amp is messed up internally. the only way to diagnose this is to rule out everything else.

3) the signal is being interuppted between the amp and the speakers. this is very very unlikly. if you had a short in the wire, the amp would either not work at all or go into protection mode.

if you dont have another set of RCA outputs, or want somthing more simple to wire up, hook up a walkman/cd player/etc headphone output, or prefereably, speaker output, considering those carry more voltage (using a 1/4" to RCA plug adapter) to the input of the amp. if the amp begains to work more correctly, you know the problem is somwhere upstream, so it could be in the headunit, an eqs you have, etc. i have a sneeking suspition youve burnt out an RCA output.


edit: i forgot to add that a poor set of RCAs running between the headunit and the amp could be the culprit as well, although its still unlikly. if all the above doesnt help, try replacing them.

:shhh: i do cocaine :/shhh: