Even the McIntosh SS amps are warm sounding. If I ever go back to tubes, it will be only in the preamp section, I never got tight bass with tubes.
Check out the new McIntosh gear, they are hybrids with tubes for midrange/tweeter and large SS for woofers in 1 chassis.
As for a built in dac, these are always a compromise over a separate dac. I used to have the McIntosh c47 preamp with phono and dac. I played this dac for 5 minutes and never went back to it, my standalone psa ds sr dac sounded much better.