With ultra loud clean tones, a mind-boggling selection of the best metal rhythm sounds around, screaming leads and studio-quality effects, the Coreblade is the stuff of hard-core guitarists tube-driven dreams. Jackhammer riffs, full-blown metal madness and more, you get wicked tone galore. Programmable potentiometers serve to store tone and effects settings in 128 memory slots. The included MIDI board affords easy access to these presets. Coreblade saves sounds straight from the amp to a USB stick so touring artists can travel with no more than an axe and a stick and Coreblade owners can readily swap sounds. TSC, the built-in tube technician, ensures maintenance-free operation. It automatically biases the amp to extend tube life, shuts down defective tubes to get you through the gig, and indicates ratings to make tube selection an exercise in convenience. TSC even lets you operate EL34 and 6L6GC tubes simultaneously! The the Hughes & Kettner Coreblade’s Tube Safety Control (TSC) is a power tube management circuit that automatically biases the amp to ensure stable sound and long tube life. It also shuts down defective tubes to get you through the gig, and indicates ratings to make tube selection an exercise in convenience. TSC even lets you run EL34 and 6L6GC tubes simultaneously. Tube tone customizing doesn’t get any easier or more gratifying than this.