The Thunderverb 200 head is a twin channel Class A/B amplifier. All valve, 200 watt RMS, channel switching head with footswitchable attenuator, valve FX loop and valve driven reverb. Nothing can match the bone crushing, bottom end punch of this big stage tone machine. Even when used quietly you know you are commanding serious power. A full three-inch 'Dual Snake 8' transformer ensures that the bottom end is kept fast and tight while the upper mids and top end are kept sweet and musical at any volume. The Extended Tonal Range enables this revolutionary amplifier also to be used as a bass head.