CP3+ Mixer PCB/Panel

The CP3PLUS is an accurate recreation in Eurorack format of one of the most appreciated vintage mixer for it's rich and beautiful sound.


This is a PCB/Panel set suitable for the Eurorack format


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$24.99

Details

Details

The CP3PLUS is an accurate recreation in Eurorack format of one of the most appreciated vintage mixer for it's rich and beautiful sound.

We know that there are already available projects based on the same famous mixer so probably the question is why we did it. We are musicians and synth DIYers and already built before variations on this theme, but practical experience showed us that there are a few things we wanted to do different to improve it:

  • There were many situation we found the 3 inputs were not enough so we decided for four inputs (like the original).

  • Previous projects didn't offer both inverted and non inverted polarity outs but a crossfade between the two outs. This has two drawbacks, you don't have access to both outs at the same time (which could be very useful in some patches). Also the distortion pattern is not the same because the harmonic structure of the distortion is affected by the position of the output croossfade pot. We decided for both outputs and to have a similar distortion pattern like in the original mixer.

  • Another addition is a four jack multiple (like in the original mixer). It is a very good idea to have a multi close to the mixer. Let's say you want to mix three oscillators for a rich sound and you want to drive them from the same CV source. Having a multi close to the mixer makes easy to distribute CV to all three oscillators.

  • The last improvement is related to ergonomics. We understand that many modular users try to make compact setups for live performance, so weight and module HP are a big concern. But we find all the crowded modules kill the ergonomics making access to pots and jacks a struggle. So we decided that we will make a version of this mixer that has a good compromise between ergonomics and panel dimensions. Look at this mixer like a module mostly made for your non portable studio modular setup.

The module is built with high quality parts, alpha pots, wima caps, panasonic low esr electrolitic capacitors. Also the module repects the ROHS standard, high quality ROHS solder wire was used.

Tech specs:

-width 10HP 
-22mm depth behind the panel, including the power connector 
-4 mono analog input 
-4 input level pots 
-1 dual level pot 
-one inverting and one non-inverting output jacks 
-one 4 jack passive multiple 
-standard 10 pin euro power (+12V / -12V) 

Specs & Downloads

Specs & Downloads

manufacturer FEEDBACK
HP 10
Depth 22mm
+12V 23mA
-12V 25mA
+5V 0mA
Additional Resources BOM & More Information

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