Query: ground lift box
Compact Mini Hum Eliminator Box - 2 Channel Passive Ground Loop Isolator, Noise Filter, AC Buzz Destroyer, Hum Killer w/ 2 1/4-Inch TRS Input and Output for 2 Mono / 1 Stereo Signal - Pyle PHE300
Monoprice Stage Right Series Sound Block (1.00)
Samson Signal Direct Box (MCD2 Pro)
Radial Engineering IceCube IC-1 Balanced Line Isolator and Hum Eliminator
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 - Pyle PHE400
Donner Special-Ⅰ Professional High-Performance Passive DI-Box Unit Hum Eliminator 1/4" instrument Direct Box to balanced & unbalanced XLR
Pyle-Pro Pyle, Black (PDC21)
Livewire PDI Double Shielded Heavy Duty Passive Direct Box
Behringer MicroHD HD400 Ultra-Compact 2-Channel Hum Destroyer
Behringer Ultra-DI DI400P Professional High-Performance Passive DI-Box
Behringer Ultra-DI DI100 Professional Battery/Phantom Powered DI-Box