Best tube integrated with Merlin TSM-MMI?

Unison Research Sinfonia?

I just purchased a cary sli-80 f1 edition to pair with my tsm/mme`s. I`m running it with 6550 power tubes right now and the music is beautiful. Man, what a huge sound stage. At Bobby`s suggestion, I just ordered a quad of e34l power tubes for it. Also have a pair of cardas gr ic`s coming.

Bottom line...love the sli-80/merlin combo.

I recently bought Vincent V-60 amp and upgraded tubes recently as well and it's a keeper.

Sorry to sound like a broken record but "Best" is in the eye/ear of the beholder. There is no definitive "best" anything, it's all subjective. When you ask a question like this, the answers will always be what folks think is "best" to them in their system.

Ok, let's change the question to -

Can anyone make suggestions for a good tube integrated amplifier worthy of consideration for use with my Merlin TSMs?

There is some evidence to suggest that if the integrated uses El34s for output tubes it is likely it will sound good to you, as it does to most users that have used/auditioned/owned Merlin speakers. While subjective, use of this tube seems to appeal to more Merlin listeners than integrateds using KT88/6550s.