Up for sale, a 1990s Electro Harmonix "Black Russian" Big Muff Pi in perfect working order. A transitional Russian-made Big Muff, this Black Russian V7 is identical in circuit design and output characteristics to its Green Russian "bubble font" predecessor, retaining the same six-screw enclosure as earlier versions, with a block font silkscreen, chicken head knobs and smaller stomp switch. Delivering a very thick, churning drive that retains ample low end content, this Big Muff is an ideal candidate for either guitar or bass.

The pedal retains its original complement of chicken head knobs as well as the metal battery cover. The graphics are quite clean, with various scuffs on the enclosure edges, mostly on the bottom.