Yamaha A-S1100 vs Mctntosh vintge

I am currently using a Yamaha CA800 which I owned back in the late 70s and love it. I also h Editave a near mint Mc2105 amp (105 w/ch) currently not being used.

I’m considering selling the Mc2105 and getting a A-S1100, or getting one of the Mc pre-amp 30 seriespre-amp to go with the 2105. Cost wise the Yamaha would be about $4-500 less expensive. My son will get the CA800.

I should add that my high freq hearing isn’t so hot anymore (Army bang bang related) so midrange clarity is most important.