ProCo Sound Iso Transformer | 1/4" TRS to XLR Male

The ProCo Sound Iso Transformer series is designed for audio engineers and systems integrators who need reliable inline ground isolation without introducing coloration or added infrastructure. Whether you're troubleshooting hum in a live FOH setup, cleaning up a broadcast feed, or managing signal integrity across a complex installed system, this transformer adapter sits directly in the signal path to break ground loops at the source.

Built for working professionals in touring, install, and broadcast environments, the adapter handles line level signals and connects directly between balanced and unbalanced sources depending on the configuration selected. Its compact inline form factor eliminates the need for outboard isolation boxes in applications where rack space is unavailable or signal paths must remain clean and portable.

Compared to passive DI boxes or outboard isolation units, this series offers a no-power, no-rack-space solution that drops into existing cabling runs with no additional hardware. ProCo Sound's long-standing reputation for signal integrity and rugged construction makes this a dependable choice for engineers who can't afford noise in the chain.