Diamond Amplification HMRSA100 Hammersmith 100W 2-Channel Guitar Amplifier 100 watts (4 x Svetlana Winged C EL34 - 6 x 12AX7) 2 fully independent channels (Channel 1 - Clean/Channel 2 - Crunch) Both Channels feature Volume, Gain, Bass, Middle, Treble, Presence Rear panel dialable deep control All components specifically spec'd and tested by Diamond before inclusion in the product.