Doepfer A-105-4 Quad Poly SSI VCF

Doepfer A-105-4 Quad Poly SSI VCFA 105 4 is our first polyphonic filter and contains four identical 24dB Lowpass filters (SSM2044 SSI2144 type). It has available common manual controls and CV inputs with attenuators for all parameters. Each filter has available a separate FM input as well as an Audio Input and Audio Output. The FM inputs are typically connected to the outputs of the associated envelope generator (e. g. A 141 4). The envelope amount for all four filters is controlled

The distances between the controls and sockets are smaller as for the standard A-100 modules and rubberized small-sized knobs are used

ALM025 / MCF

5mm outer diameter) / Positive Center

As the signal path is DC-coupled

You can sweep each effect from imperceptible all the way to rumbly

Compatible products:

Power: 40mA @ +12V / 30mA @ -12V

Its sonic character swings all the way from classic low pass to squelchy acid lines

Highly responsive to control signals allowing for exploration of the fluctuating stereo sidebands possible with Audio Rate Crossfading and Panning

You won’t need to find a sweet spot because BRENSO is calibrated to sound ‘as expected’ in any setting

There have been many techniques for accomplishing this aspect of TZFM

This new version features an expanded sonic palette and feature set in half the size of the original