How does the Sony 6 channel mixer MX-8 work? It has no power supply. There is no phantom power from the items I connect to it yet it works. Besides, I don't
Passive matrix mixer with switches : r/synthdiy
PMIX - Passive Mixer
Mini Stereo 8 Channel Passive Mixer RCA Portable Audio Mixer 8 in 2 out Stereo Distributor Volume Control, No External Power Required - Walmart.com