https://www.hhb.co.uk/product-category/multichannel-audio-processing/
Multichannel Audio Processing – HHB
multichannel audioprocessinghhb
https://geni.us/sounddevicesmixpre6ii
Sound Devices MixPre-6 II Portable 32-Bit Float Multichannel Audio Recorder/Mixer, and USB Audio...
sound devicesmultichannel audioiiportablebit
https://hackaday.io/project/7041-multichannel-audio-dsp-field-mixer-recorder
Multichannel Audio DSP Field Mixer Recorder | Hackaday.io
bluetooth app controlled professional portable DSP mixer.balanced audio IO,phantom power,flexible routing,ISO recording. timcode. AVB audio.
multichannel audiodspfieldmixerrecorder