MXR Blue Box Functionality confirmed. Used only at home. No smoking, no pets. This is a unique fuzz that blends sounds two octaves below. I've used three of these, including this one, and the low output seems to be a characteristic of the pedal. It's best used in combination with a booster, etc. ◆ Main Features • Unique two-octave down sound • Adjustable blend of fuzz and octave • Suitable for both guitar and bass • Vintage-style sound and look • Warmth and unique tone from analog circuitry ◆ Musicians who use it • Jimmy Page (Led Zeppelin) └ The strange and impressive solo in "Fool in the Rain" is the true essence of the Blue Box. • Josh Freese (Nine Inch Nails) └ Injects essential madness into industrial sound. • Jack White (The White Stripes) └ Loved as the perfect weapon for lo-fi and unpredictable sound creation. - Brand: MXR - Model name: Blue Box - Number of knobs: 2 - Connectors: INPUT, OUTPUT, DC 9V #octavefuzz #jim_dunlop #korn