Fuzz Factory 7, using two rare, Russian GT308V germanium transistors. Where the Fat Fuzz Factory has a 3 position toggle, The FF7 has a nine position rotary switch and covers enormous sonic territory, from earthshaking low frequencies to “dog whistle” (figuratively) high frequencies. The Fuzz Factory 7 also has a passive tone control (with its own switch) to roll off high end if need be.