Iv got a Concept 2400D amp here for sale. It is used and in great condition. Puts out 2400 watts at 1ohm and 1200 watts at 2ohm. Had it in my car for about 6 months but drained my battery too much so I am selling it. Im asking 300 plus shipping. Shoot me an offer and we can work out a price. I also am selling a 15" Rockford Fosgate Punch HE2 sub. Handles 500 watts rms. It is also used and in good condition. Shoot me an offer. Thanks