$80 + Shipping. No trades. Bought this amp used about a year ago, had it powering a set of CK6's for about six months. The amp is obviously a little beat up and dirty, as the pictures will reflect, but it still functions great and puts out rated power. (Was doing over 200w per channel @4ohm) Info can be found here: US AMPS XT1600.2 - Car Amplifiers - Discount Car Audio