Direct Box Passive

Little Bear MC5 Mini Portable Stereo 4 Channel Audio Mixer Passive Live...

DigitalLife HumBlock XLR Series Ground Loop Noise Isolator XLR-A600 M/F Passive

Whirlwind PodDI Personal Audio Interface 1-Channel Passive Direct Box

RapcoHorizon LTIGLBLOX Laptop Interface with Ground Lift (NEW)

Passive Monitor Volume Controller, XLR 2 Input 2 Output Stereo Studio Controller

ProCo AV-1 A/V Passive Interface Box

Palmer MONICON S G2 Passive Monitor Volume Controller