This video shows a Neumann N20 vintage analog recording console, filled with Neumann V476b mic preamps, W491a equalizers, W444STB faders, etc. Other danner cassette modules, i.e. W495ST, U473a, Telefunken W695 and more can be installed.
We build custom mixers at vintagetools, but they are not cheap. The API format is cool, because all modules share one pinout, but the build quality of the vintage german stuff is another league.
Not cheap and not easy to find, but never say never. :-) A custom desk made of danner cassette modules is a dream for sure: www.vintagetools.de/Audio/Mixing-Summing/CUSTOM-danner-cassette-desk.html
Hi Robert. In the so called Braunbuch the indicator W stands for: resistors, faders, filters and equalizers, while V stands for Verstärker (= amplifier)