Bass fuzz

The Fredric Effects Deeply Unpleasant Companion is an improved version of the Shin-Ei FY-2 Companion Fuzz. Following requests from bass players, we've modified this circuit to preserve more of the low frequencies and added a clean blend function. So you can mix the clean signal with the fuzz according to taste. The buffers used in the blend circuit also have the added bonus of bringing a touch more clarity to the fuzz than the standard Unpleasant Companion, while retaining its uncompromising character! Like the Unpleasant Companion, this pedal also features a volume boost circuit to avoid the volume drop characteristic of vintage Shin-Ei FY-2 pedals. Although designed with the bass player in mind, this pedal also sounds great on electric guitar - especially when used with distortions and overdrives.

http://www.fredric.co.uk/shin-ei-fy-2-fy2-clone-deeply-unpleasant-companion-bass