JHS Colour Box Preamp Instrument Effects Pedal Designed to imitate the unmistakable sound of plugging an instrument directly into a vintage Neve preamp Studio grade circuitry and a Lundahl transformer makes this a preamp, EQ, overdrive, distortion, and fuzz all in one The Master and Pre-Vol controls take tones from slight grit and warmth to heavy overdrive/distortion to gated fuzz The Step control is a five-position switch that raises the gain of the two preamp stages simultaneously up to 39dB Control the headroom of the unit so you can have cleaner tones or over-the-top distortion and fuzz The EQ section is a powerful Baxandall-style EQ circuit so you can boost or cut Bass, Mids, and Treble to your needs The Hi-Pass filter sweeps from 60Hz to 800Hz to remove muffled low-end or give you AM radio/garage type sounds