Tone King Imperial MK II Head BK, Tube Amp Head for Electric Guitar, 2 Channels, Power: 20 W, Integrated Ironman II Compensated Power Attenuator for an excellent sound at any volume (up to -36 dB), The Reactive Load Technology maintains the feel and response of your guitar amplifier, Preamp tubes: 3 x 12AX7A, Power amp tubes: 2 x 6V6, Rectifier tube: 5AR4, Reverb driver tube: 12AT7, Reverb receiver tube: 12AX7A, Rhythm Channel control: Vol, Treb, Bass, Lead Channel control: Vol, Tone, Mid-Bite, Reverb, Tremolo Speed and Depth, Attenuator: Attenuation level, Switches: Channel selector switch (switchable on front panel or foot switch), Power On/Off, Standby, Rhythm Ch. Attenuator Bypass and HF Compensation, Effects: Tube spring reverb, bias modulated tremolo, Speaker outputs: 8 - 16 Ohms (6.3 mm jack), Input: 6.3 mm jack, Footswitch: 6.3 mm stereo jack, Dimensions (W x D x H): 572 x 229 x 267 mm, Weight: 11.3 kg, Colour: Black, Includes 2-way foot switch (channel, tremolo), Made in USA