volume. Switchable from 30W to 15W and 7W. Footswitch optional, 4x ECC83 preamp valves, 1x ECC81 Tube driven FX loop, 30W RMS, dimensions: H10.63 x W21.65 x D9.45 in., bass, shape, 4x EL84 power amp valves, two channels. Dirty channel: volume, speaker outputs for 1x 16 ohm or up to 2 x 8 ohm cabinets, gain. Clean channel: treble, weight: 34.3 lb