I can't speak for that exact one, but it seems a lot if not most of these devices expect a speaker-level output (meaning amplified) and not line-level. I know my Dovetron can deal with Line Level but its it gets glitchy, vs using a speaker level output. Can always fit a tiny 1w amp inside too (I thought about doing this for my Dovetron to give it line-level input).

Jeff KC3GJX

On Fri, Feb 17, 2023 at 11:34 AM steve bennett via GreenKeys <greenkeys@mailman.qth.net> wrote:
What are the Flecher TU170 signal levels?
Is it compatible with "line level" signals like the ones used to interconnect stereo audio equipment?
Or would you drive it from a headphone jack?

Thanks,
-Steve
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