The world of modular synthesizers is a unique and colourful place, where modules which defy convention, subvert the standards, and re-invent the game are welcomed and encouraged. Take the BLM CMOS FX Processor MK2 for example, which is an effects processor which seeks to generate the sound of circuit-bent equipment, with what they’ve termed a ‘XOR Drone Voice Synthesizer’ – capable of making those power-starved, lo-fi, glitched-up sounds we love.
The BLM CMOS FX Processor is a 16HP module featuring sound processing alongside envelope generation and amplitude controls in one sleek-looking unit. Power starve is a common modification done to old Casio keyboards, Speak & Spell machines and more, restricting the flow of current around a circuit to introduce grainy lo-fi artifacts and alter the pitch of the incoming signal. This feature is one which the maker says is totally unique, with no other similar products on the market! The addition of an envelope generator and control over the amplitude, gives this feature even greater dexterity.
For a full rundown of the features of the unit, see the attached user guide. It’s another superbly designed and crafted unit which is sold by Blue Lantern Modules, who are based in the USA. Here’s a little demo of the unit in action with a TB-303 style acid sequence.