PSG AUDIO DB-MKII Dual Premium Direct Injection Audio Box Passive DI Unit Hum Eliminator w/Input Attenuator to Connect Guitar & Bass,1/4'' Impedance Transformer Connector to Balanced & Unbalanced XLR

PSG AUDIO DB-MKII Dual Premium Direct Injection Audio Box Passive DI Unit Hum Eliminator w/Input Attenuator to Connect Guitar & Bass,1/4'' Impedance Transf. Connector Balanced & Unbalanced XLR

Pyle Compact Mini Hum Eliminator Box - 2 Channel Passive Ground Loop Isolator, Noise Filter,AC Buzz Destroyer, Hum Killer w/ 1/4" TRS Phone,XLR Input/Output, Uses 1:1 Isolation Transformer