Search query: ground lift box

Product: 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 Removes AC noise: The Pyle hum eliminator removes 60Hz AC hum caused by ground loops that act like Radio antennae (loop antenna). breaks the ground loop safely making it impossible for the signal lines to pick up the AC noise in the first place
Passive device: The noise isolator is a passive device which does not require power to operate. Equipped w/ ¼” TRS phone and XLR inputs and outputs on 2 channels. Automatically converts unbalanced to balanced signal without any signal loss
Compact design: This noise filter device features a high performance Ultra compact and portable design allowing you to easily bring it anywhere. It has high quality components and rugged construction while maintaining the highest sonic quality
1:1 ISOLATION TRANSFORMERS: The 1:1 isolation transformer is responsible for breaking the ground loop or the loop antenna that prevents buzz for a clear sound. Also responsible for balancing audio lines. Device accepts mono or stereo connections Pyle Blaccck

Product: Donner Special-Ⅰ Professional High-Performance Passive DI-Box Unit Hum Eliminator 1/4" instrument Direct Box to balanced & unbalanced XLR 【Heavy-duty】Professional and multi-purpose direct injection box for stage and studio applications
【High sound quality】Provides impedance and signal matching for the direct connection of instruments to mixers and amplifiers
【Clean and pure 】Ultra-flat frequency response due to renowned Donner LAB-S1 transformer .The transformer also helps eliminate hum and buzz caused by ground loops by isolating the input from the output.
【Robust circuit design】Converts a line or instrument level unbalanced signal to a low impedance mic level balanced signal
【Low noise】Ground Lift switch eliminates typical ground loop problems .Send the thru signal to your amp and the output to the PA system. Transformer isolation eliminates nasty hum and buzz caused by ground loops. Donner BLACK