Big Joe Stomp Box Company, in collaboration with Paul TFO Allen, present the dual-preamp EMPIRE overdrive pedal, complete with an Adjustable Buffer/Line Driver, unique Sponge/Firm modes, and innovative Body and Attack parameters. Preamps A and B can be used independently or combined to turn any single channel amp into a 4-channel beast that roars with clarity. Bring it with you on the road and, the days of being at the mercy of uninspiring backline and rental amps are over. But that s not all... The Adjustable Buffer/Line Driver compensates for pedalboard signal loss and also doubles as +15db clean boost to create more lively and exciting clean tones, or give you that perfect on the edge of breakup sound. The pedal also includes a unique Sponge/Firm function that allows you to customize touch-sensitivity for the tube-like sag, response, and feel you d get from an amp. The Body and Attack knobs provide additional shaping options of the overall tonal girth and pick-dynamics for limitless sound explorations. 2-Channel analog Overdrive/DistortionChannels A and B can be used simultaneously or individuallySwitchable Bypass (True Bypass or Buffered)Channel A control for Presence, Drive, Output, Body and AttackChannel B Control for Gain, Output and ToneToggle switch to select between Firm and Sponge modes for each channelSeparate Line Drive control for up to +15 dB boostToggle switch for switching between Buffered and True BypassToggle switch to select the order of the channels in the signal chainStatus LED6.3 mm Mono jack input/ outputPower supply with 9V battery or 9VDC power supply (2.1 mm x 5.5 mm barrel connector, polarity (-) inside, not included) 12V and 18V supportGet your Big Joe B-502 Empire Dual Preamp Overdrive Guitar Effect Pedal today at the guaranteed lowest price from Sam Ash Direct with our 45-day return and 60-day price protection policy.