An old SiliconDust forum posting suggests noise in pre-amp or powered splitters
could lower signal quality. I'm going to assume the RCA pre-amp is working ok.
If all other measures fail then re exam issue raised in the SiliconDust posting.
If RCA premap really needs replacment maybe upgrade to the
AD Juice pre-amp.
https://forum.silicondust.com/forum/...&t=4474#p25503
Quote:
Splitters and amplifiers can introduce noise which will lower the Signal Quality, even if the Signal Strength increases.
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