Matching solid state amps with tube based pre amps

Have used tube pre/SS amp for years. It's no guarantee but if you find the right combo, it can be great. A many have said, pay attention to impedance matching and spend some time rolling tubes to fine tune the sound. Currently LTA MZ3 into SPL Performer s800 and it's lovely for my Harbeth Super HL5+ speakers.

I run a tube amp and a ss amp with my tube preamp ( not simultaneously). With the ss amp, the stage is slightly smaller ( due probably to the fact that the ss amp is a stereo amp and the tubes are mono blocks), but the SQ is excellent either way. What has not been touched upon is the fact that the ss amp will be less costly to run ( no tube replacements) and in many instances, more reliable. Depending on the tube amp, also less consistent sounding than the ss amp. ( due to bias drift, tube aging etc). No wrong answers, but a ss amp and a tube preamp can be the best of both worlds, IMO.

I have considered buying class D amps with tube buffers but am concerned that the inclusion of a tube would muddy the sound enough that I would not like the overall effect.

LTA MZ3 preamp into SPL S800 SS amp to Harbeth SHL5+ speakers. Love it. Have been able to alter the sonics somewhat by rolling various tubes to get things to my liking which to me is an advantageous, interesting and fun benefit of the tube pre approach.