Elrog 300B vs Takatsuki 300B tubes

How about Audiopax Model 88 ? It is a single ended tube monoblocks that delivers 30 watts per channel.

And Ayon Crossfire III, it is also an SET putting out close to 30 watts. Has anyone heard them ?

Pani,
Those 2 amplifiers are worth considering if you're seeking higher power while attempting to maintain the SQ of your Wavac EC 300b. The Ayon Crossfire is a pure DHT tube design. The Audiopax 88 isn't a true SET(if that matters at all to you). It is a very innovative pentode tube(KT 88) that uses these tubes in parallel wired for triode mode.It is a more complicated design than the simpler straight forward Crossfire SET. Both are said to produce excellent sound despite their very different circuits. Both are certainly more powerful(output power rating) than your 300b amp. Will they sound better than your Wavac EC? Only listening will provide the answer. It is logical to assume they'll provide more drive for your Tannoys. I would think either of these may be closer to what you seek compared to the FM Acoustic SS amplifier you tried.

I heard the monoblock version of the First Watt SIT amplifiers at last summers CAF - driving the Zu Def 4s (a speaker that I know well). They sounded great, but are only 10 watts and run hot (much hotter than my 300b SET). If I needed more power, I would consider an SET amplifier using 845 or 211 tubes. Like Charles, I am firmly in the tube-based SET camp.

Hi Gary,
I know Srajan Ebaen(6 Moons) prefers the First Watt S.I.T. over any 300b SET he's heard. 213 Cobra and some other gon members tried the S.I.T. but ultimately preferred their own amplifiers(they did think highly of that amp however). Gary, where did the S.I.T fall short compared to your Ancient Audio amplifier? I've been curious to hear it myself.