Doepfer A-106-5 - 8HP 12dB Oberheim SEM Filter - BP LP Notch HP Morph

Mint

8HP SEM-style 12dB analog VCF — small module, big routing brain.

• Based on the Oberheim SEM filter circuit — not generic “basic lowpass” flavor.
• Multimode done the useful way: BANDPASS OUT plus LP/HP MIX OUT.
• LP/HP MIX sweeps lowpass → notch → highpass instead of trapping you in one fixed filter mode.
• Middle MIX position = notch filter zone — instant hollow cuts, phasey sweeps, vocal-ish movement.
• Separate BANDPASS OUT means you can carve mids without stealing the main LP/HP output.
• Most tiny filters give you one main output and call it done. This gives two different filter exits at once.
• CV1 = direct cutoff control. Fast. Simple. No menu trash.
• CV2 = polarizer control — modulation can push forward or pull backward. Way smarter than plain attenuator-only CV.
• Audio Attenuator is not dead utility — Doepfer says normal A-100 VCO levels can distort around 50% or higher.
• Translation: clean SEM sweep when backed off, harder edge when pushed.
• No self-oscillation by design — this is a filter first, not a fake sine oscillator pretending to be useful.
• Frequency + Resonance + LP/HP Mix = fast hands-on tone shaping.
• Audio In, CV1 In, CV2 In, Bandpass Out, LP/HP Mix-Out — clean patch logic, no workaround maze.
• 30mA +12V / 20mA -12V draw — easy power hit for a serious analog filter slot.
• 55mm depth — normal rack-friendly Doepfer build, not a shallow-toy compromise.
• Best for: subtractive voices, notch sweeps, nasal bandpass cuts, drum filtering, acid-ish input push, animated mono leads.
• Use BP out and LP/HP mix out together for split-filter routing tricks from one module.
• Where basic filters just “darken sound,” this one reshapes the sound path: low, notch, high, and bandpass are all in play.

Shipping only $6.95 as I am splitting the actual cost of shipping with you.