Ebtech Hum Eliminator XLR 2 Channel

Ebtech Hum Eliminator Rackmount 8-Channel Audio Noise Filter Isolation HE-8

Whirlwind ISO 1 Single Channel Line Level Isolator 1/4" TRS / XLR Hum Eliminator

Ebtech Hum Eliminator 2-Channel Audio Amplifier 1/4" TRS

Ebtech Hum Eliminator 2-Channel XLR Audio Line Noise Reduction Interface

EBTech Hum X Hum Exterminator Ground Loop Feedback Hum Buzz Eliminator

Morley MHE 2-channel Stereo Hum Eliminator

Ebtech Hum Eliminator model: HE-2 , 2 Channel 1/4" TSR - Tested