Radial Engineering Cab-Bone Speaker Cabinet Switcher Guitar amp speaker cabinet switcherLets you toggle between 2 speaker cabinetsDigitally controlled relays with ramping overlapSlingshot remote-control switchingSafeMode failsafe protectionWorks with tube and solid state amplifiers Uses high-performance, high-cycling, gold contact relays to switch the amp's speaker output without adding color to the tone To ensure safe, stable amplifier operation and smooth transitions, a timer IC manages a ramped connection overlap This ensures constant load on the output, a major concern with tube amplifiers As a further safety measure, the Cab-Bone incorporates a power-off feature called SafeMode which automatically diverts the input signal to output-1 if the power supply is ever disconnected or turned off by mistake