Erica Synths - Acidbox


With the Acidbox III, there’s finally a stereo version of the infamous Polivoks filter. Completely analog signal paths and old, Russian ICs guarantee sound true to the original. A well-equipped LFO and an envelope follower allow musicians to create very lively results. Thanks to mutual controls for left and right channel, the variable input gain plus a multi-functional control port, this desktop unit is equally suitable for producers, live performers, DJs as well as guitarists. – Plug it in and start jamming!




  • Polivoks core stereo lowpass/bandpass VCF with the original programmable opamps
  • Unique audio overdrive circuit
  • Versatile syncable LFO with 8 waveforms
  • Tap tempo button
  • Envelope follower with modulation level attenuverter
  • Master modulation control
  • Manual and CV control over cutoff frequency
  • Configurable control input for footswitch, expression pedal and external LFO/cutoff control
  • Adjustable input gain 
An external power supply (12 V DC) is included.

Two audio inputs and outputs (L / R)
CTRL input
Input for external power supply


Dimensions: 185 x 140 x 55 mm
Weight: 0.7 kg

0.615 kg
Article Number
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Status: The article can be picked up in the shop right now / article is ready for dispatch
availability ? immediately available
€ 19% VAT excl. €385.71 € 19% VAT incl. €459.00
Excl. 19% VAT, Excl. shippingLieferzeit 1