4x4Pole: Preface

March 18, 2013

‘I am a man of projects’

Being into something of a building binge at the moment, I’ve decided to extend myself for the next outing and do something quite special.

The ideas came to me in a rabid haze and before I knew it the Postman had delivered 4 sets of PCBs from Mutable Instruments. Specifically, 4x4 Pole Missions, with the notion of turning them into a 4-voice Pole-mixing polysynth, but with flexible MIDI routing allowing splits and other combinations.


It must have lots of knobs, either via a MIDI CC controller, or by using the Shruthi Programmer. To keep my options open I also bought 2 of the latest run PCBs. Thanks for the sweets Frank 🙂


It also demands lots of joysticks for real-time control. If I use the programmer I lose the CV inputs on one of the Shruthi’s, but that still leaves room for 6 joysticks on the other three units. Oh yeah.

Further, I wanted to scavenge my neglected Novation KS-4 for it’s key bed and Pitch/modulation wheels. After some uncertainty I’ve found that I can probably re-use them via a Doepfer MKE MIDI board. It’s been ordered…


The components for the 4 Shruthis have also been ordered. A lot of soldering and testing of the individual units should keep me occupied for a few weeks.

Another idea I’m looking into is incorporating a small mixer with pan controls and possibly a Send.Master FX. As this is a bit beyond me at the moment, I feel I should leave plenty of room in the case for expansion and further modification.

Finally (for now) I’m thinking about integrating my unbuilt MIDIpal to make it a control powerhouse. Perhaps to keep it modular – separate the keyboard/wheels and leave room to slot-in the 4×4, or whatever I choose to build in future.



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