JA-X8 100 Watt Tube Amp HeadHi gain rube guitar amplifier head Output: 120 watts into 8 ohms Ohms: 8 ohms Tube Complement: 2"6550; 6*12'AX7 Speakers: none Channels: Four selectable channels Features: Presence , depth boost, bright Controls: Four channels the same controls: Gain. bass, middle. treble, volume Weight: 22. 8 KG Dimensions: 71*26. 6*27 (cm) Footswitch uses optional 3 button footswitch for channel select