Best tube amp for jazz, B300

I heard a B300 tube 3 yrs ago and was blown away by the sur-realistic, the immediacy of the musical image. Smoooth and easy was the sound. The speakers , can't recall exactly, but were a popular model 3 yrs ago, the only issue I had was the slight bark in the vocals at one particular fq. Happened a few times with one jazz cd, male vocal. Can't recall the cd. It was the speakers fault, 100%. Now with a much better high sensitivity speaker, I'd say the B300 is one of the very best for jazz, considering all tube models..
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