EXPRESS 5:50 Duo-Class™ Power Amp (Patent 7,173,488) allows you to select either: 1 power tube in pure Class A (single-ended) producing 5 Watts or switching to 2 power tubes in Class A/B to produce 50 Watts via a 5/50 Power Switch / 2x6L6 & 5x12AX7 SHARED FEATURES: Fixed Bias for consistent, maintenance free performance 2 Fully Independent Channels with 4 Style Modes (Channel 1 = Clean or Crunch, Channel 2 = Blues or Burn) Independent Gain, Treble, Mid, Bass, Reverb, Master and Contour Controls per Channel Footswitchable Variable Contour Control on each channel provides the power of our 5-band graphic EQ all from 1 rotary control All-Tube, Long Spring Reverb All-Tube FX Loop External Switching Jacks for Channel 1/2, Contour 1, Contour 2, Reverb 3 Button Footswitch (Channel 1/2, Reverb & Contour) Slip Cover. CALL FOR CUSTOM FINISH OPTIONS