I WOULD take that bet, at least if I could do the comparison in my system. I know from experience that we'd hear the difference easily.
I've used RCA/XLR adaptors. The commercially available ones all sounded like mud. My preamp designer then built me a custom pair from higher quality components and they were much better. However, best of all was when I got suitably terminated interconnects and dumped the adaptors altogether. No small improvement.
The Seller's advice was wise. Have the TT outputs reterminated to single ended and skip the adaptors.
I've used RCA/XLR adaptors. The commercially available ones all sounded like mud. My preamp designer then built me a custom pair from higher quality components and they were much better. However, best of all was when I got suitably terminated interconnects and dumped the adaptors altogether. No small improvement.
The Seller's advice was wise. Have the TT outputs reterminated to single ended and skip the adaptors.