Using a Zoom H6 (portable recorder) as a sound card with Gig

Greetings. Has anyone tried to use a portable recorder (like a Zoom unit) - in soundcard mode - to output GigPerformer to an amp or a FRFR cab or other ? Need to have the soundcard do other things too and Zoom H6 looks like it may fit the bill. 3.5mm stereo out is the challenge to deal with.

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Using a Zoom H6 (portable recorder) as a sound card with Gig Performer - GP for Guitar and Bass Players - Gig Performer Community

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Capturing high-resolution audio is easy with the Tascam Portacapture X6 32-Bit 6-Channel Multitrack Field Recorder. The intuitive app-like operation on its large color touchscreen makes it easy to record or sweeten up your audio in post-processing. Record using the two built-in microphones or plug in your own mics to its two XLR inputs. The recording quality on the Portacapture X6 will be your secret advantage.

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All of our engineers are musicians and they designed the R4 MultiTrak to empower musicians to explore big ideas. With a unique dedicated bounce track and 32-bit float recording, the R4 is perfect for capturing your most ambitious compositions. With the R4, you can record up to four tracks, mix and then bounce them to the dedicated bounce track. This lets you free up additional tracks to keep adding layers.