This Module is currently available.
A four channel mixer with integrated white noise
Ziggy is a DC coupled four channel mixer for audio and CV signals. If you leave the fourth input unconnected, you can use its volume knob to blend white noise into your mix.
The module has two outputs – an inverted and an uninverted one. Use the uninverted output for normal audio mixing.
*4 channels
* 4th channel normalized to white noise
* Output for inverted and non-inverted signal
* Module depth: 20mm
* Width: 6HP / 6 TP / 30mm
* Power consumption
* +15mA (+12V)
* -15mA (-12V)
* +0mA (5V)
https://www.hissing-wombat.de/products/ziggy-4-channel-mixer