The IRT-STUDIO is not just a tube pre-amp – it is a full 3 channel with pre-boost, all-tube Ironheart amp in a 2u rack. Loaded with a pair of EL84 output valves the IRT-STUDIO generates either 15 watts or less than 1-watt RMS of pure valve tone. The IRT-Studio features the same great IRONHEART tube tones as the bigger heads in a low-power, lightweight, portable EL84 all-tube package with some neat features added. The IRT-STUDIO features a USB Audio I/O and a RE-AMP send jack. Plug it straight into your PC/MAC or iPad and get pure tube tone directly into your digital world. The IRT-STUDIO is the ultimate in portable amps and is supplied with a dedicated 4-way footswitch. Use it in the studio, at rehearsal or on the road!