Kustom  The Defender 100W  2 x 12 Guitar Combo Amp, Classic Tolex The dedicated three-button footswitch that comes with Defender V50 and V100 amplifiers handles the following functions: (1) Switches channels; (2) Activates Effects; (3) Activates the Volume Boost. By the way, its built like a tank. Speaker-Emulated XLR Direct Out that nails the amps actual sound for mixers and a variable, footswitchable Volume Boost that works on both channels. Accutronics spring reverb unit, while the V100 adds vintage Tremolo and Vibrato effects. Celestion Vintage 30 speakers