ProCo IT-4 4-Channel Isolation Transformer Unit (direct box x4) 1U Rackmount – Tested Working

ProCo IT-4 4-Channel Isolation Transformer Unit 1U Rackmount – Tested Working

ProCo IT-4 four-channel professional isolation transformer unit in good used condition. Fully tested and functioning properly.

The IT-4 provides four independent transformer-isolated audio channels and is designed for professional live sound, recording, installed sound, broadcast and production applications. Its primary purpose is to provide true electrical isolation between pieces of audio equipment, helping eliminate ground-loop hum, buzz and other interference.

Each of the four channels provides XLR and 1/4" line-level connections, along with an individual Ground/Lift switch. The unit is completely passive and requires no external power.

This is especially useful when connecting consoles, processors, playback systems, crossovers, amplifiers or other line-level equipment where transformer isolation is desirable. The modern ProCo IT4A performs essentially the same job and currently sells new for roughly $480–$530, so these older IT-4 units remain useful pieces of professional analog audio hardware. (Full Compass Systems)

Standard 19-inch, 1U rackmount construction. The unit shows normal cosmetic wear from professional rack use, including marks and scratches visible in the current photos. Nothing has been hidden or cosmetically restored.

Condition: Used
Operational status: Fully tested and working
Channels: 4
Format: 19" rackmount, 1U
Connections: XLR and 1/4"
Individual ground-lift switches: Yes
Power required: None – passive transformer design

A solid piece of older ProCo professional equipment for anyone needing four channels of dependable transformer isolation in one rack space.