The Orange Amp Detonator Buffered ABY Switcher is an active pedal with two outputs, one of which has an isolating transformer. The transformer is totally transparent and both outputs are buffered for a low noise, linear circuit. Orange have made the Amp Detonator the most silent ABY Switcher on the market, meaning no thumps and whumps when switching amps. A polarity switch lets you correct phase issues to maintain your tone. Also, an LED light and 9V battery compartment make this the ideal choice for players who gig without a pedalboard.