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Line level audio into Flex 6400 .. audio extremely hot by the time radio modulates 100%

Kevin J. Darrah
Kevin J. Darrah Member ✭✭
edited December 2019 in FLEX-6000 Signature Series
I run AM exclusively with my Flex 6400. Through the Mic input all seems well for the most part. I decided to run audio into the 15 Pin Connector. Now I am extremely puzzled. 

As long as I keep the modulation levels somewhere between 50% and 75% the audio is satisfactory.. When I try to modulate the audio too 100% as verified with a scope the audio is so excessively hot, even before the leveler encroaches 0 DB.... 

There is no hum, no anomalies etc.... On the audio .... AS long as I keep it at 50% ....  Wondered if anyone else had noticed/tried this on AM and had similar results. 

Kind of a strange situation, thanks. 

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