I have a brand new Memphis 2.5 kw that i am looking to trade for a hifonics colossus let me know which generation you have. It came with a small scratch on the top of it but it isnt anything big. I took it out of the plastic to check it out and all but i never hooked it up because i dont have the electrical to back it up. I was going to go with two of these 2.5 kw's but i dont think i want to wait to buy a second amp and then the alternator and everything else on top of it.