VT20+ features the VOX Valve Reactor circuit that uses a 12AX7 vacuum tube for true-tube tone, 99 expertly voiced presets, 25 top-quality effects, eight user memories and 33 accurate amplifier models encompassing the entire VOX lineage plus an impressive list of other hard-to-come-by classics and rare hi-gain models. The amplifier offers Gain, Volume, Master Volume, Treble, Middle and Bass controls plus the unique Power Level Control that can limit the output of the amplifier whilst still creating distinctive power amplifier distortion at any listening level. Also features a built-in tuner, 30 watts of power, a VOX original 8 speaker and a headphone output.