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Acid Diode Ladder Filter

Transistor Filter

Primal Audio I/S

  • • Industrial circuit simulated 303 filter

Audio examples


ACID is an analogue-modelled low-pass filter. Based on the characteristic diode ladder filter design from the vintage Roland TB-303 synthesizer, ACID brings the squelchy sound of the original unit to the Reason Rack. ACID uses cutting-edge DSP rooted in techniques used in industrial circuit simulators to accurately model its analogue components. Furthermore it extends the original filter with an envelope follower, resulting in a versatile unit capable of many types of effects from gentle overdrive and adding some bite to samples to transforming dull synth sequences into bubbly, acidy riffs.

ACID is included in our FILTER CLASSICS bundle.

Mac OS compatible Windows compatible