By far the most amazing bass head Ive ever owneda real workhorseif you cant get your sound out of this ampit probably doesn't exist!!! AH600 Bass Amp, featuring the famous GP12 SMX Preamp. 100% UK madeback when Trace produced their best gear. 600 Watts (1,200 peak) English Ratings tend to be very conservative, head sounds much much louder. Amp comes packed in a Calzone Flight Case Features ----------- GP12 SMX Preamp Tube and Solid State Pre amp sections, you can run in tube, solid state, or blend Active/passive input switch 2 pre-shaped sound switches 12 band graphic equalizer Equalizer Volume control Low and High Compression EQ Balance Effects Loop Black Light) looks great on stage Can be run Bi-amped, or stereo (2-300 Watt channels) Bridged 600 Watts Cross over frequency control Foot switch input Effects loop mono Effects loop stereo Balanced DI pre EQ Balanced DI Post EQ Left and right output jacks Tuner output Has additional features and functionality that Ive never used. Amp is an 8+ cosmetically (some surface scratching of the tolex) Sounds great. A pleasure to gig with Im no longer gigging and getting too old to haul around a large rig. I can offer excellent web, as well as EBAY references. Asking $650 + UPS Feel free to email me with questions or offers. Add this head to the 2X15 cabinet I have listed for a dynamite bass rig!!!!!!