This is the holy grail of Sherman gear. The Quad Modular Filter (QMF) takes the cult Filterbank, the snarling, screaming, envelope-following distortion-filter that producers worship, and stacks four of them into one fully-patchable, wood-panelled monster. Only around 95 to 100 were ever built worldwide, and this is serial number 73: a genuine piece of boutique synth history. Four independent filter sections, each with its own input and MIDI channel, patch together for a ferocious 96dB mega-filter, or run four sources in parallel like the world's most dangerous mixing desk.

FEATURES & PROS:

• Four Filterbanks In One: Four independent Sherman filter and distortion engines, numbered 1 to 4.
• Genuinely Rare: One of only roughly 95 to 100 ever made worldwide; this is serial number 73.
• Mega-Filter Mode: Link all four banks for a brutal 96dB combined slope, or process four separate sources at once.
• Full Modular Control: Independent MIDI channels per bank, plus CV and Gate I/O and LFO outputs for wild patching.
• Extra Firepower: Banks 3 and 4 add Bright, Limit and Slow switches, an octave shift, a sawtooth LFO and faster envelopes.
• Belgian Boutique: Hand-built by Sherman with the classic wood side panels.

SPECIFICATIONS

• Type: quad analog multimode filter / distortion processor (four Filterbanks in one)
• Rarity: limited edition, approximately 95 to 100 made worldwide; this unit is serial number 73
• Filter slope: up to 96dB with all four banks linked
• Control: independent MIDI channels (1 to 4), CV and Gate in/out, LFO outputs
• Build: classic wood side panels, single IEC mains power
• Origin: Sherman, Belgium
• Condition: used, functional