Up for your consideration is a hardly used and never abused, Kustom KXB500. Great sounding amp, I'd keep it if I didn't have other amps that I wanted to try. So grab it while you can. reviews and info can be found here http://www.talkbass.com/threads/nad-the-best-amp-ive-ever-heard-kustom-kxb500.1094234/ Asking $325 shipped conus. Willing to trade for a GK MB500 or MB500 Fusion + any cash difference from my end. Rack ears included. No original box.