Threshold Micro Mutable Instruments Edges (Black Textured Aluminum)Threshold is a miniaturized version of Mutable Instruments Edges, a quad chiptune audio generator. Threshold is identical to Edges in hardware and software, with the exception of an added MIDI input. It has four voices, each a VCO with two CV inputs for pitch. Threshold is 10 HP, which is a 10 HP space savings over the 20 HP Mutable Instruments Edges. This module is professionally built and extensively tested by an electronics engineer with over ten