MXR M300 Reverb Pedal Reverb Guitar Effects PedalThe MXR Reverb delivers six distinct high end reverb styles, each exquisitely crafted and tuned by the award winning MXR design team. It all comes in a standard sized MXR box with a simple three knob setup and a hi fi analog dry path with a massive 20 volts of headroom thanks to Constant Headroom Technology. Each reverb style is as richly detailed as any found in the highest end rack units and plug ins, and all you have to do to step through them is