JBL Nanopatch Compact 2-Channel Passive Volume Controller

AUX to XLR Isolation Box, 3.5mm TRS to 3-Pin XLR Hum Eliminator with Volume C...

Neewer NW-12 Desk Top Microphone Sound Isolation Barrier

Whirlwind ISO-XL Line-Level Isolation Transformer with XLR Connections

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

Rockville 12" Replacement Driver Woofer For JBL JRX212 Speaker Monitor

Jbl CSR-V

Whirlwind ISOXL Line Isolation Transformer XLR