$530 shipped Sorry no trades
SOLD
Markbass R500 tube bass head. 500W into 4 ohms, 300W into 8 ohms. Tube preamp, analog power section and only 8 lbs!! Very thumpy. Great condition. Lost black power cord has been replaced with a beige one. Build date 07/07. Great tube amp sound in a simple lightweight package. This amp packs a lot of feature in a uniquely small package. Tuner out, effects send/return. ground lift switch, DI out and DI control, pre and post EQ send, controls: low, mid-low, mid-high, high, line out, gain and master so you can overdrive the tube for tube distortion, has an input for a mute (mute pedal not included). Combo speakon/ quarter inch outputs. It's LOUD!!!!!! I A/B'd a newer Mesa and am keeping it over the R500.
More specs here -
http://www.markbass.it/products.php?...&cat=1&vedi=81 
