Mesa D-180 bass amp, all tube, 200 watts into 8 or 4 ohms. The orignal Mesa bass amp, basically a 200 watt version of the current 400+ head. All the bells and whistles you need: XLR direct out, effects loop, graphic EQ, etc. Features a two channel "cascaded gain" preamp so you can dial in thick distortion if you like. Mounted in a four space rack, ready to rock. $500, pick up near Boston, MA or I can ship UPS COD at your expense.