This is an extremely rare Dumble amplifier circa late 70's early 80's. Alexander must have made this amp for someone special as it has a built in Dumbleator to allow effects to be used and the Dumbleator gives this amp a real 3-D quality. The tone is really dialed in on this amp with the overdrive channel sounding more like the newer ODS models, but smoother. The ultra rare built-in Dumbleator provides an extra gain stage and volume knob even if effects are not used. Tan suede covering, 6L6-100 watts with 1x12'' EV speaker.