North Coast Synthesis - MSK 011 Transistor Mixer

North Coast makes the Eurorack four-knob utility mixer sound great with this minimalist design featuring just six transistors. Where a conventional mixer would typically require at least five operational amplifier units each containing a dozen or more transistors, we cut the complexity and distill mixing to its essence. This is a new design made with current components and modern manufacturing quality; but its Class A amplifiers operate on principles that go all the way to the dawn of electronic signal processing.

Suitable for both audio and control voltages, with bonus features that don't compromise the minimalist philosophy: positive and negative offset; simultaneous DC- and AC-coupled outputs; maximum gain a little over unity for when you need that extra push over the cliff. It can also function as a transistor distortion effect, by offsetting the signal until it clips and then using the AC-coupled output.


    High-quality potentiometers with bushings fastened to the panel for wobble-free operation; conductive plastic for smooth feel
    All-new design, not a clone or imitation of anything else
    Classic discrete-transistor design style;
    No ICs!
    No compromises on build quality: real aluminum panel, not PCB material, with colour printing; nickel and gold plating on the circuit board; film output coupling capacitor; close-tolerance metal film fixed resistors.
    Fully open design - no lock-in