How to connect an outboard compressor to the UR824 Interface

I recently purchased an older Symetrix 425 expander/compressor/limiter. I tried connecting it to one of the output channels and it appears to receive signal when I connect a microphone to the UR824. However, when I change any of the parameter knobs, nothing happens to the mic signal, it remains the same. Am I supposed to change something in the tools or is the outputs on the UR824 only for speakers?

As there’s no inserts on the UR you probably need to send your mic out of the UR into the input of the compressor then out of the compressor back into another input on the UR for you to record.


Brilliant! Works like a charm now. Thank you.