Thinking about a McIntosh Preamp

My current system includes:
Thorens Turntable
Ayre CD Player
Krell KCT Preamp
Krell FPB 400cx Amp
Revel F32 Performa Speaker

Im 73 years old now and I don’t listen to music like I did 10 or 15 years ago.  Back in the day whenever I turned the system on I was breaking windows and blowin’ doors off, and I still do when I’m showing off.  And at high sound pressure levels I am very satisfied with the performance.   But most of the time I am listening at lower volume levels and I don’t feel I am getting the full sound the system has to offer.  Hence the interest in a McIntosh preamp with the 8 band EQ ( it may also have a loudness switch, I’m not sure).  Does anyone have experience fronting a Krell style Class A power amp with a Mac pre?  I would love to hear your thoughts.

THANKS!