When were the best tube amps made?

Today, also with recent output and input tubes coming into focus past 3 years. 

If value is a concern, Quicksilver, Aric audio, Don Sachs, others + with a few small upgrades can be a great value with some patience and letting go of some of the vintage stuff. Clean simple designs, easy to repair, less-is-more circuit designs.   

Absolutely right now. Just heard a pair of VAC Master 300 monoblocks. Holy cow. These have me thinking that AMP is the most important component of the audio chain. Including room.

In terms of engineering brilliance and sheer transparency, timbre and attack Nobu Shishido’s Wavac designs are unequalled in my mind 

Music Reference, Roger Modjeski amps.  

The question finally goes down with today or past.

When we talk about tube amplifiers, we should  be more focused on music. When we listen the music, what is important? If we are talking about the  enjoyment of the music, and whether matter it is the original sound, then I vote for today 's amplifier. Otherwise, it is definitely belongs to the past.