This amplifier is 10 x 7 x 4.5It was originally designed for Sonny Landreth, who needed an amplifier small enough to fit on a pedal board. He was tired of being stuck with bad rental amps on the road. (He cant always take his TGA-3 on the plane.) The TGA-1 is an innovative, hybrid single channel guitar ampwith the all tube hand wired TGA-3 clean channel pre-amp.This exclusive Tube Driver stage, with a special Jensen audio transformer controls an audiophile Class D power amplifier, retaining the real tube sound, but with a much larger range of both volume and fidelity than most tube amps, literally from bedroom to arena.This little amp has an amazing amount of power;180 Watts into 4 ohms (modern 412 cab), 100 Watts into 8 ohms (single or 2 x 12 cab),or 60 watts into 16 ohms (vintage Marshall 4 x 12.) You get a full compliment of controls: Gain, Bass, Midrange, Treble, Master and a standby foot switch with status light.Its the first hybrid that really sounds like a tube amp.Besides our legendary clean sound, the TGA-1 also gets great Edge/OD/Distortion tone when you turn up the gain. The Master control has a pull pot with a 20db pad, so you can get the Gain up and still have range on the Master. For your convenience theres a regulated 9 volt DC output jack to power your pedals. The TGA-1-180D combined with your pedals gets you almost any sound imaginable andyou wont have lug around a heavy amp head any more...it fits comfortably into a 35mm camera case. Proudly hand built in Templeton CA USA