AMPLIFIER HEAD FOR GUITAR Guitar head. Fully valve. 100w Class A/B. Power select 100w/70w/50w/30w. 2 channels. 'pics only' design. Switchable Fader and Reverb. Spring reverb with ECC81/12AT7 valve. Clean Channel: Volume, Bass and Treble controls. Dirty Channel: Gain, Bass, Middle, Treble and Volume controls. Effects loop. Tubes: 4x ECC83/12AX7 preamp, 4x EL34 power. Speaker output: 1x16ohm, 2x8ohm, 2x16ohm). Dimensions: 55 x 27 x 28 cm, Weight: 25Kg. Maximum versatility.