Amp Recommendation for Vienna Acoustics

Timo, on tube amps, you should look for an amp delivering at least 200W into 8 Ohms, increasing to at least 300W into 4 Ohms.

Regards, G.

Tim, I put a friend into your speakers as a starter system...they are 4 ohm, so, yeah, they could use some drive, but thinking they necessarily need SS or 200W is, um, well...

If you've had tubes 14 yrs, then I would strongly advise that you look there first.

If it were me, I'd look at a Joule Electra LA 100 MkIII linestage - around 1200 used but they go fairly fast at that price - matched with a Prima Luna amp, one with the newer KT120 output tubes already installed by the seller. Get a good IC - maybe a Jade Audio - and you might never look back. In any event, if you didn't like something, all of this would be easy to sell.

Good luck!

Thanks everyone for your suggestions.
I am going to try The Musical Fidelity M6si via a home audition from my local audio dealer. I just want to experience first hand the difference with using a high powered integrated SS amp will have with my speakers.

The Higher powered integrated MF M6si did open up the Vienna Acoustics.
The bass tightened up and became more defined and brought to life to the entire speaker from top to bottom. I still could hear some limitations in the bass of the Mozart Grand , but overall it was nice. I suppose a move up the line in the VA line of speakers might help with a more defined bass sound.
I am not sure if I am a solid state person though. I really like the Musical Fidelity , but I wished it had warmer sound in the upper midrange and above. I guess I am use to the tube sound.
Thanks again everyone for your input.

I am glad you are getting familiar with the VA's. I have found on the Mozart Grands the most difficult balance is what you are dealing with. Components, mostly the amp in this case, that control the lower midrange and below, and then do not have the spectrum above that get a little thinner, harder, brighter, or edgier compared to fuller sound of the lower frequencies. But after you find that balance the quality of sound from these speakers rates extremely high. You will be rewarded for your patience and effort. There might not be a lot of other speakers that will make you as happy if like me you like to a very high degree a very natural sound and very musical and communicative. Where all the parts of the music fit so well together you forget about the component stuff.
With what you describe your amp doing now, I am not real familiar with it, you can help out your concern with a pre amp and cables to a degree. But I think the amp is the most important component for the speakers and it sounds like that amp is taking you in the right direction with your speakers.