Here’s a sneak preview, via sound design Richard Devine, of a prototype of the Synthesis Technology E370/E371 Expander Quad Morphing VCO for Eurorack synthesizers:

Here’s what Devine has to say about the video:

Just doing a Drone test with the E370 and E371 Expander prototype Quad VCO. It’s a combination of features from the E340 and the E350 using a new class of ARM processor with high-quality Cirrus Logic audio DACs. The audio was ran through a new Mutable Instruments module for light processing.

Pricing and released date are to be announced.