Source Audio SA224 The Soundblox 2 Stingray Multi-Filter Pedal w/ 2 Cables Features 12 different Low Pass, High Pass, Band Pass, Single Peak, Multi-Peak, and Notch filters. State-of-the-Art DSP - Source Audio's proprietary 56-bit Digital Signal Processor, the SA601, and crystal clear 24-bit converters. Two programmable user presets easily accessible via two dedicated footswitches. Multi-Function Jacks - Use the Source Audio Hot Hand motion sensors, or Dual Expression Pedal, for on-the-fly control over modulation or any knob parameter. 9V DC power supply included