Drive, tone, boost and volume controls give you easy control over your distortion with the ZVex Box of Rock. This guitar effect pedal consists of a tremendous high-headroom, unity-to-50x gain booster with minimum input impedance and low hiss. Get few visual tweaks with this ZVex distortion pedal's silk-screened model. This guitar effect pedal's boost channel follows the distortion channel, thereby allowing the distortion to hit your amplifier harder at a high volume improving solos. Adjust your guitar's treble content and distortion engine volume level with this ZVex distortion pedal. Enhance the performance of your guitar with the ZVex Box of Rock guitar pedal.