Up for sale is a good used MTX Audio MXA4001 amplifier. This is a one channel amp that's capable of 200 watts at 2 ohms and 400 watts at 4 ohms. Please go to MTX's website for the full specs. I used this amp to power one 12" MTX 7500 sub and it always worked flawlessly. Don't be fooled by its size. It could easily power two subs. This is a great amp and I'm only selling it because I upgraded to a newer MTX amp and sub. This amp is in good working shape but it is used so please expect some signs of wear. FREE SHIPPING AND INSURANCE to the lower 48 states. If you live outside this area please message me for a shipping price before buying.