Orange Thunderverb 50H Guitar Head - all valve, 50W RMS, 2x EL34/6CA7 power amp valves, 4x 12AX7 & 2x 12AT7, two 3-stage channels, built in adjustable attenuator, attenuator/channel/reverb switchable by footswitch). Channel A with treble/middle/bass EQ and Channel B with slope/shape EQ, valve powered reverb and FX loop. Dimensions: 550 x 240 x 280mm. Weight: approx 20 kg. Footswitch optional.