291

Buchla's 291 Dual Voltage Controlled Filter, an original 200 series module (discontinued): two bandpass filters, their center frequency and bandwidth under voltage control.

Key features

• Two channels, each a signal input, a frequency modulation input and two outputs
• Center frequency from 30 Hz to 15 kHz, bandwidth from narrow to wide, each with a CV input and its attenuverter
• A Q control on each channel