A customer asked to build a custom summing mixer with different flavours on channels so a modular solution was the best to adapt on each channel different “analogic colours” without having to elaborate many different pcb layouts.
Instead of building something extremely custom I tried to design something around COLOUR MODULES (the open source format around DIY world).

And the result was the first COLOURMIXER (V1.0).
This custom built unit has a Control room/MONITOR section and one of our bus compressors inside.

COLOURMIXER 2.0

COLOURMIXER 2.0 is an elaboration of the previous concept: each channel has 8 colour modules with drive/saturation/colour control on first 8 channels, a direct output for each of first 8 “drive” module and a summing circuit with an optional couple of colour modules.
8 channels goes to “drive” channels and then into sum and 8 channels goes directly in summing stage in which you could deal with colour&drive/saturation.

COLOURMIXER v2.0 “LIGHT”
-16 channels summing mixer (8 saturation/drive channels+8 “direct” channels to summing/mix bus stage) -8 direct outs

COLOURMIXER v2.0
-16 channels summing mixer (8 saturation/drive channels+8 “direct” channels to summing/mix bus stage) -8 direct outs
-2 colours/drive saturation modules on MIX BUS/summing stage

Neumann v475 summing mixer

Summing mixer built around Neumann v475 card.

We test and restore and recap every card and we remove components that limits the bandwith of the cards, originally used for broadcast applications.

On request summing mixer with 8, 16, 24, 32 channels.

Options:

  • Passive mod: with this mod you can use every external preamp to make-up the passive sum of the input summing network
  • Insert: with this option you have a switchable insert to connect to the summing mixer a stereo compressor, an eq or an analogue outboards chain and activate them with a simple switch.
  • Mono/Stereo: with this option selected channels works in couple as stems  (for stereo signals) or in MONO for signals like vocals, kick drum, snare drum, bass.

Custom summing mixers

On request we build active or passive summing mixers with various make-up stages  (in API, SSL, NEVE style).

Custom solid state 9000 summing stage plus bus compressor: