The ProCo IT4 is a 4-channel, rack-mountable isolation transformer unit, often used as a line-level direct box. It is primarily designed to provide true floating transformer isolation for unbalanced line-level outputs from audio equipment like mixers, equalizers, and crossovers. This unit is in excellent condition in the original box, with instruction sheets and feet. if not used in rack mounting.

Cash Sale, No Holds, call or Text for Local Pickup Only.
 
Key Features
Four Channels: 4 independent channels of isolation, ideal for multiple sources.Transformer Isolation: Break ground loops, minimizes interference from dimmers, transmitters, and 60 Hz AC power.
Wide Compatibility: 1/4" and XLR connectors for both input and output
Ground Lift Switches: Each channel has an independent ground/lift switch, to helps eliminate hum and buzz caused by ground loops.
Robust Construction: rugged construction designed for durability in pro applications. 
 
Primary Applications
Line-Level Direct Box: Used to convert unbalanced line-level signals to balanced, transformer-isolated outputs for feeding long cable runs to power amplifiers or other equipment.Ground
Loop Elimination: It is highly effective at breaking ground loops that occur when equipment is connected with unbalanced lines, which can cause hum and noise.
System Protection: The transformer-floated outputs protect connected equipment from improper connections or fault conditions, making it especially useful for portable sound system