Review of Amplifier: I made the mistake of purchasing 2 soundstream rubicon amps.. the 4.5 and the 2.25. both units functioned normally and adequately for a year and a half. they both "died" a couple weeks apart despite Pristine wiring, power -ground-rca's etc, and never driving the hell out of em.. now i know why i got them for a total of $335.. I guess you get what you pay for, eh? Still, the low price should reflect the overall performance level of a product, not a limited lifespan. I also have a soundstream cap that worked for a grand total of 10 minutes before the volt/amp l.e.d's stopped working. Moral of the story.. DON'T WASTE YOUR MONEY ON SOUNDSTREAM CAR AUDIO.