A relatively inexpensive, small, but loud 5 watt solid state emulation of a roaring Plexi that does a pretty decent job of it! I've used it to power a 4x12 Marshall Mode 4 cabinet! Has effects send/return and a headphone jack as well as an auxiliary input to add music to play along to (or to just blast out the speakers). Included is the 18V power supply it came with. Due to the nature of my gear acquisition syndrome (GAS), this amp has a LOT of company and doesn't get played much so since I'm moving soon, gear must go! My loss is your gain.