The DTI (Dual Transformer/Isolater) is a passive audio interface that uses a pair of high performance transformers to separate input and output signal grounds, for isolating two systems and reducing hum and ground-loop noise. Its audio transformers have an extremely flat and wide frequency response and can handle high signal levels while maintaining an isolated balanced output. The transformers are wound for 1:1 unity gain and work with impedances from 600 Ohms to 100k Ohms.

It sports XLR, 1/4" phone, and RCA type phono connections on all inputs and outputs for connection versatility, and is housed in a rugged black anodized aluminum case.