Hi, I have two Alpine amps that are 4 months old. 1.) Alpine MRV 1507 and 2.) MRV F404. Receipts are INCLUDED. They are both in 100% working condition. The 1507 2 channel is 1500 watts bridged and 1 ohm stable! The MRV F404 4 channel, is 400 watts. Their a perfect pair. They look great together. The only two amps you need. The F404 has a minor scratch on it, barely noticable. Look at the top left corner in the picture. This is a great chance to get two top of the line amps to really give your system a competition sound and uniform look. If you have a reasonable price in mind your willing to pay for them e mail me. These amps together are pretty heavy, shipping for both will be $35 sent priority 2-3 business days with provided tracking number. If you have any questions at all please feel free to e mail me.