MULTIMODE VCF & VCA
A modern, universal multimode VCF and VCA combined in a single module, featuring an integrated mixer and overdrive functionality. Four selectable filter modes are available: 4-pole low-pass, 2-pole low-pass, 2-pole band-pass, and 2-pole high-pass.
In low-pass modes, Q-compensation is not only switchable but also adjustable, allowing you to fine-tune how much low-frequency content is restored after resonance boost.
For filter frequency control, in addition to a switchable V/OCT input (OFF / ½ / FULL tracking), there are three individually controllable frequency modulation inputs:
- FCV1 directly modulates the filter.
- FCV2 has a selectable modulation source: it can be the FCV2 input, the audio signal before the VCF (from the mixer), or the audio signal after the VCF.
- FCV3 also directly modulates the filter, but can be switched so that the incoming ENV signal controls the post-filter VCA. The VCA also has its own dedicated CV input.
Additionally, there is a controllable RESO CV input for resonance modulation.
The VCF features three controllable audio inputs. The pre-filter mixer stage can be overdriven, indicated by an LED — this results in an overdrive effect inherent to the mixer’s design.
The module provides separate outputs for the VCF, as well as both input and output for the VCA.
Hidden Parameters of MULTIMODE VCF & VCA
This menu contains calibration parameters for filter resonance:
Reso level of 4PLP, 2PLP, 2PBP, 2PHP
Module features of ASR211 MULTIMODE VCF & VCA:
Block diagram of ASR211 MULTIMODE VCF & VCA:
Owner’s manual:
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