ZVEX EFFECTS Double RockThis pedal was originally designed for J. Mascis of Dinosaur Jr. He requested two Box of Rock pedals in one box with two stomp switches (without the boosts)._He uses that regularly on stage now, but we did one (or two) better with the one we're releasing to the public we made it so you can adjust the sub frequencies (like the Distortron), and you can convert either channel to a Super Hard On. In this way, you can configure the pedal to be two