This post was originally published at futuremusic.com
The Latvian mad scientists over at Erica Synths have debuted new Euroracks, the Black VCO and Black VCO Expander, and the 10HP version of the Black Polivoks VCF v2.0 and the Black VCA v2.0.
The Erica Black VCO is an analog VCO with four simultaneous waveform outputs and one octave down sub oscillator. The core of the VCO is the Russian Polivoks VCO. Unlike other logic dividers based sub oscillators, the Black VCO transistor-based sub oscillator generates more rounded square waves, similar to the Roland on TB-303.