Tannoy Westminster amp matching question.

Charles1dad - you are completely wrong when you assume SS only has
advantages in the bass.
I have been listening to Tannoy GRF Professionals ( super rare backloaded
horns similar in size and efficiency to the Westminsters ) for over 15 years
with a Perreaux 5150B ( 500 wpc ) and have had the experience of auditioning
many amps including single ended, OTL's - including Ralph's, ultralinear etc.
I can tell you that efficiency is only half the story. With the 15" driver
what the big Perreaux achieves is superb timing and control that single ended
and many other tube amps cannot achieve. For example on Beethovens 5th by
von Karajan, the relentlessness of the performance is superbly communicated
with 500watts of power, even at low listening levels. This is lost with many
low power amps.
I suspect the amplifier needs to control the big driver, and this is almost more
important than the speakers efficiency in selecting an amplifier.
FWIW I own 2 pairs of 15" Tannoys and a pair of 10" Monitors.
Single ended with these speakers is pretty much a tone control. They very
seldom produce accurate musical timing.

I'm pleased this thread has invoked some very interesting comments.

Atmas, I like your explanation of why DHSET do what they do. Very easy to understand, it makes sense to me, especially in context of what the 45's and Duos did for me. I don't think that a Solista is going to come along anytime soon at a price I can afford say 6.5k (more over time). I'm anticipating time for experimentation.

I'll explain a little more what I like and hope to get out of my new system.

I don't consider myself into huge dynamics or extreme performance, what I am into is a totally sibilant free and natural presentation. Overly Bright and metallic sounding leading edges on s's t's etc are my real pet hate.
Tone, images that are super free from the speakers and depth of image is very important to me. I seem to prefer a more relaxed presentation. I think that this can also be a function of the room, that is in hand. I have a dedicated room 10m x 6m which I can treat for acoustics. Its not a huge room, but I believe I can get the system to work well.
If not I have 12m x 8m room that I can use, but that will take some serious domestic negotiation with my girlfriend, probably including expensive bribes. Money that would be better spent on Vinyl !!

I'll state up front, that the romantic in me (and the fact that Jeff Day got on so well with Sofia 300b) will make sure that I'm going to try a suitable SET with them. If I can find a Solista at the right price, it'll be one of those. It appeals to my Arty side :-). I'm aware, thanks to you guys that Power may be an issue. So onto experimentation......

I regard the Plinius SA250 mk4 as one of the best class A solid state amps (at realistic cost levels). Fortunately I have one, so I've got that experiment covered. I also have access to a friends 50w pp amp that actually sounds really lovely with his speakers, so Ok there as well (cant remember what it is right now ). My AMR AM-77 will be an interesting pairing as well. Just for completeness my front end is a TTweights gem/Kuzma 4point/DL103r.

Originally I started off thinking of a CAT SL2 would be great. There was one on hear last month in NY for 7k ish. In some ways I think that would be a great tube match if the Wests require POWER. I'm not too worried about making an expensive mistake as I believe as long as you're a sensible buyer and not in a rush you generally don't lose to much on quality components. I don't really listen very loud, at least its not something I consciously set out to do. I find tracks generally sound best at a level that they seem to dictate themselves , so I may turn something up or down to get better emotional connection. I have no experience with OTL amps, I'm not even sure what they are other than they have no transformers in the output stage.

Once again, I appreciate your experience and enthusiasm, thanks.

Correction:- JL2 not SL2 and it was 9k.

Borg7x9 - The GRF Professionals in a room similar in size to yours worked better across the room - this would be worth trying.

Thanks Dover, If i struggle down the room, I'll give it a go.