ronkent
Have you considered a tube buffer or a tube disc player ?
I had the last solid state Carver CD player design , granted it was from the 80's and it sounded digital . It was replaced with Carvers last CD player that uses 2 tubes in the output and I love it , when I read about it it seemed that for years many considered it their reference player . My point is that using a tube buffer or finding a tube based CD player would most likely solve your disc brightness .
You might also consider upgrading the components on your crossovers , they made a lot of improvements since 2006 .