I recently purchased a Phase Linear UPA424 amp about 2 days ago.4 channels 2 to the front speakers 2 to the back speaker boxes purchased at kragen...yea im pritty cheap i konw but they work...kinda.I was working on my car, installing the spekers and what not and when i went to hook up the amp to the speakers i had nothing. It worked the day before just fine. I figured it might be the battery but after charging still nothing. The unit is getting power and the green led has light, but no out put signal is comming from the amp. Any Suggestions
Hook up an external source to the RCA jacks using different RCA wires and see if you get sound, also, try hooking up different speakers to the amp. If none of it works, return it and get a new amp.
I may have, the amp was on while it went out, i had it hooked up to my mp3 player at the time so i dont think it is the rca's. I think somthing may have just got messed up in the amp on accadent. I'm new to this so probably my fault but Auto zone has a good return polocy so i should be allright.