Well to start on my way to work yesterday my right side speakers weren't working. They were cracking and poping. After work they were doing the samething, but before i got home i smelled something turned around and the amp was smoking. Its an xtant 604. The amp is over 3 years old, so theres no warranty left. I know very little about car audio so any help would be greatly appreciated. thank you

 

Once the smoke comes out of an amp the amp is toast. It would probably be cheaper to buy a new one than to have the one you have repaired. You can try contacting Xtant to see what their repair policy is though. You've got nothing to lose by asking them.