High-Quality Passive Direct Box - 1/4" Input to XLR, No Phantom Power Required

Nowsonic Switcher 2-Channel Passive Volume Controller Big Knob XLR & 1/4" TRS

JBL Nanopatch Compact 2-Channel Passive Volume Controller

SM Pro Audio Nano Patch Passive Volume Control

MCM Audio 3ch Passive Microphone Mixer with Aux Input and Mic Level Output

Behringer Studio M Premium Passive Studio Monitor Controller

Behringer MONITOR1 Premium Passive Stereo Monitor and Volume Controller

Kopul XLR Hum Eliminator – Passive Audio Isolation Transformer, Ground Loop Fix