Erica Synths Acidbox III Analog Desktop Stereo Filter Module

The legendary Polivoks VCF filter gets a modern stereo makeover in the Erica Synths Acidbox III, complete with a distinctive audio signal overdrive circuit that adds serious character to your sound. This compact unit houses the core of the famous Soviet-era filter alongside a built-in LFO and envelope follower, all wrapped in a robust full aluminium case that's built to last.

Versatility is at the heart of the Acidbox III's design, with adjustable input gain that accommodates everything from guitars to synthesisers, grooveboxes, and modular systems. The configurable control input opens up even more possibilities, allowing you to connect bypass footswitches, expression pedals, external cutoff control voltage sources, and LFO sync triggers.

This flexibility makes the Acidbox III a valuable addition to both studio production setups and live performance rigs, giving you professional-grade filtering with the distinctive sonic signature that made the original Polivoks filter a sought-after piece of gear.