Electro-Harmonix Deluxe Bass Big Muff Pi Bass Effects Pedal Pad on the input that's switchable between 0dB and -10dB ensures the pedal is optimized for use with both passive and active pickups Blend allows a player to mix to taste the direct and distorted signals Three outputs: a 1/4 effect out, 1/4 direct (buffered dry) out and XLR DI out give complete control of your output signal and sound Foot-switchable crossover section with a variable low pass filter on the dry signal and a variable high pass filter on the distorted signal give bassists the ability to sculpt their sound Crossover circuit, in conjunction with the Blend control, lets you keep the low-end clear and focused and the high-end bright and cutting