I have had an MTX 4-channel amp for three years with no probs. I briged it to run 2 subs, 2 door speakers and 1 sub and now I'm using it to run 4 speakers. no problems. One thing I can say though is that on ebay you can get good [censored] very cheap. I just got an Alpine V-12 m500 sub amp for 300 bucks and it is the [censored]!!!!!! Basically, when buying car audio, make sure you are fully aware of return policies and warranty coverage. Everyone designs systems for different reasons so be prepared to buy and return stuff if it isn't to your liking
