Matching solid state amps with tube based pre amps


I was like to get people responses on the mixing a solid state power amps with a tubes base preamp or match only with
solid state preamp.
128x128shrimpandgrits
I run a McIntosh C2600 tube preamp with McIntosh MC611 SS mono blocks. They work very well together. 
I've used a tube preamp with a couple different amps -- an older Adcom 535L and a new Van Alstine SET 400. Both give good grip on the bass and quick timing, but the midrange and upper range were not smooth enough for my ears. I'm running KT 150 tubes on my monos now and it's all working well. 

However, if a Pass or Ayre or Hegel amp come my way, I'm curious to hear those mids and treble ranges smooth out considerably.
I'm running the schiit freya + into krell mono blocks to wilson sophias 
very happy with the sound
I ran a VAC Renaissance 5 pre into an Ayre VX5/20 with excellent results. Highly recommend the combination mixing tubes an SS.  
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