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 AF-4 Analog Filter by Synapse Audio is a Virtual Effect Audio Plugin. It functions as a Rack Extension Plugin.
AF-4 Analog Filter
AF-4 Analog Filter
Product AF-4 Analog Filter
Developer Synapse Audio
Price (MSRP)
Type / Tags Filter
Plug-in, App & Soundware Format(s)
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The AF-4 is a virtual-analog lowpass filter module for Reason, based on the well-known transistor ladder design.

In order to obtain highest quality, this lowpass filter employs a topology-preserving, zero-delay feedback network with 4x oversampling, yielding results comparable to industrial circuit simulators. As a result, all prominent features of the analog prototype are preserved- the filter can be driven into a warm, musical saturation, as well as into self-oscillation. Additionally, the resonant tuning is correct across the entire frequency range.

The filter can be toggled between a 12dB/oct and 24dB/oct lowpass response, and supports both mono and stereo processing.

Full integration into the Reason environment and workflow is provided by the CV Inputs on the backside, allowing to control all front panel parameters.

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