Small but Mighty! The Randall RD40C Diavlo 1x12 Tube Guitar Combo Amplifier compact design pumps out all-tube tone in situations where a stack is not practical. The RD40C has a 2 channel design plus a boost function, providing a huge variety of tone from ultra clean to all out metal mayhem. 40-watts of power is provided by 6L6 and 12AX7 tubes. The Randall RD40C Diavlo amp also features Spring Reverb, Tube Boost Mode, and includes a 2 function footswitch.