Why you need the TC Electronic SpectraComp Compressor Pedal: SpectraComp Bass Compressor is the tiniest big thing to hit the world of bass in a long time. This ultra-compact and highly intuitive multiband compressor, is made to bring out all of the glorious low-end punch and presence of your beloved bass in the most transparent and musical way you've ever heard. Just turn it on and take charge of the groove. Features: • Studio-Quality Multiband Compressor - perfectly tuned for bass • Ultra-compact design • TonePrint enabled • True Bypass • Super simple to use - one knob to rule them all • 9V/100mA • High quality components • Road-ready construction