Attenuator switch for 20 watts, 5 watts or 1 watt output power Two EL84 power tubes and three 12AX7/ECC83 preamp tubes Two footswitchable channels with 3-band EQ Footswitchable global volume boost, reverb, and effects loop Footswitch included Tube Status Indication (T.S.I. circuit) MSDI Output with XLR and ground lift switch USB Output Speaker defeat switch Headphone output. Footswitch included Impedance switch for 16 or 8 ohm cabinets Weight Unpacked: 7.6 kg Weight Packed: 9.3 kg Width Packed: 33.655 cm Height Packed: 49.2125 cm Depth Packed: 31.4325 cm