"anyboard" fun DIY patch panel project

[mcdn]

I get tired of messing around with all sorts of custom cables and adapters while testing hardware. So I created a simple patch board that lets me connect anything to anything - the "anyboard". The parts are on a 4 layer PCB with ground pours on top and bottom, so RFI is <130dB on balanced connections. Obviously plugging stuff into the banana jacks etc does add some pickup. The connectors are:

• XLR male x 2 (Neutrik NC3MAH)
• Combo XLR female + TRS x 2 (Neutrik NC6FA-h)
• 3.5mm TRS
• RCA +/GND x 2
• RCA -/GND x 2
• 4mm sockets GND/+/- x 2
• 5.08mm dinkle/phoenix pluggable socket

KiCAD and FreeCAD files are at https://github.com/mattclarkdotnet/anyboard - apologies I haven't put up a README file yet.

 

[mcdn]

Here's the 1kHz FFT from a Topping D10 balanced to a Cosmos ADC via the board (96kHz/24 bit, 128k FFT, no smoothing, no averaging, Blackman-harris 7, 50% overlap).