The Epiphone Valve Jr is as simple and pure as Class A tube amps get. Single input, single knob (volume) and only one 12AX7 and one EL84 tube power this 5W monster. A solid state rectifier finishes the chassis, providing quick breakup and crunch. Optional 4, 8 and 16 ohm outputs allow a variety of cab configurations. The Valve Jr is awesome for beginners, those on the go, and pros looking for a no-nonsense studio fix.