A-106-6 XP VCF Vintage Edition

Doepfer's multimode filter based on the filter circuit of the Oberheim Xpander: 15 filter types from a 24 dB ladder whose four stages are mixed with different levels and polarities, eight of them at once on separate outputs, the Filter Group switch choosing between two groups. Vintage Edition: black panel, black knobs with turned aluminium caps.

Key features

• 15 filter types: low pass 6 to 24 dB, high pass 6 to 18 dB, band pass, notch, all pass and their combinations with a 6 dB low pass
• Eight outputs at once, the Filter Group switch choosing between the two groups of eight
• Frequency set by hand (Frq.) and by FCV1 (about 1 V/octave) and FCV2 with its attenuator (FCV)
• Voltage controlled resonance: Q by hand and QCV with its attenuator; self-oscillation in filter group 2
• Audio input with its level control (Lev.)