It is hugely more coloured.
If you enjoy ducks they could be your ideal loudspeaker .
Keith
I've enjoyed this thread. Appreciate that some actual user experience and subjective opinion could be posted without being totally killed ;-)
So a final and way too long response:
Perhaps Westminster are not the most neutral speakers I've had. In particular they do have some extra energy around the acoustic crossover of the front horn, at around 200-300Hz in my room, and the tweeter is not ruler flat at least not in my room, as you can see from the measurements I posted. Of course you can correct that with DSP if you like (Audiolense XO does that very well). AND, unless you have a large acoustically balanced and treated studio, most speakers need room correction anyways to get a reasonable in-room response.
Granted, my Adam Audio S5X main studio monitors would probably be the most neutral speakers I have, and more so than most "hifi" brands. And with the built-in 1250W of class D power they can play silly loud without audible dynamic compression or distortion. My previous Paradigm Persona 9H were also more neutral with really SOTA mid- and high resolution according to recent reviews, but to me they lacked that special something that I could fall in love with. BTW I measured my much cheaper Dali's outside and the response was ruler flat, group delay was fantastic, impulse response almost looked like it was from an amp not a speaker. Very impressive in fact for a 7K pair of speaker. But when you place them in an actual listening room, this perfection is messed up anyways, and a direct comparison with the Westminsters in the same room is just ... not even reasonable ;-)
So compared with these speakers, ranging from 7K-35K a pair and having more common bass reflex designs, the Westminsters are just a lot more fun and makes me want to listen to more music! And also they sound fabulous even at very low listening levels, not sure why that is so. Of course these are very subjective statement and I am not sure how that can be quantified.
I also agree with previous comments that it is not that relevant to try to compare the "quality" of Revel Salon 2 with Westminster since they are so different in almost every possible aspect (huge horn loaded front baffle vs slim speaker, concentric "point source" vs traditional elements, horn vs bass reflex). I have both style of speaker and for me there is no question what I enjoy the most.
But for the sake of more "objective" comparison:
Dynamic compression and distortion at realistic (reference level) SPLs are also a kind of "colouration" in my view.
A pair of free standing Salon 2 (86dB/1W/1m sensitivity) will require 2x600W RMS to produce 105dB peaks (THX reference leve) at a listening position 4 meters away. Add the usual 3 dB headroom (so 108dB) to be on the safe side to avoid clipping the amp, so 2x1200W required, that is, if they can handle it, I'm not even sure.. I don't think it is unreasonable to expect that high-end fullrange speakers can handle THX reference levels with ease in a typical listening room.
In comparison, a pair of Tannoys would need only 2x32W for the same SPL @4m, but then they still have 13dB headroom (118dB @4m) with a powerful amp like my ASR Emitter II ;-) At that stage, the Salon 2's would be melted on the floor, assuming you had the 2x12 000W required to reach those peaks. Of course I don't play at 118dB SPL in my MLP but it says a lot about the dynamic capabilities of horns vs more "common" designs.
cheers