Warmest sounding Green Mountain speaker?

First order cross over, Time Alignment, Phase Alignment are all very good things and I agree GMAs do it well. But I dont listen to them individually, it comes as part of music, if piano sounds like an instrument which is just 2ft long and 2ft wide and made of some thing rigid like Aluminium then I get definitely get turned off in spite of all the time/phase coherence etc.

Thank you all as the responses have given a good sense of what I would expect from the GMA's. Also thinking odf Reynaud but from what I understand the GMA's might be able to fill up my large basement better at higher volumes in my large basement.

I have a pair of Continuum 1.5s from around the year 2000 and I had the privilege to hear several other GMA models, as Roy Johnson used to let me hang around his shop in Old Colorado City and help burn in new speakers while I was trying to decide if I wanted any of his speakers and then later while I was waiting for mine to be built.
I also am familiar with and like the new Vandersteens. I just heard the new model threes (I think that's what they were) this weekend and they were terrific. The Quattro Woods I also like.
I'm not really sure what you mean by "warm", though.
I can tell you I love the Continuums for their ability to play loudly (and still sound good) and their ultra-modern looks.
The smaller GMAs, I think they're called Callistos, are also very cool but I don't recall them sounding, well, as big.
Those Vandersteen threes I heard this weekend did sound kind of mellow; maybe that's what you mean. Smooth and easy to listen to. The GMAs do not have that quality, at least not as much. But I think they make up for it in other ways, particularly in detail and realism. Listening to drums through GMAs is always surprisingly realistic and makes you wonder why quick sonic transients like that are so shortchanged through other speakers. I think this makes the GMAs ideal for rock and pop, maybe less for classical or bluegrass.
I'm sure I didn't help much, but I think if you get a chance to hear the GMAs you'll be able to tell right away whether or not they're for you.

Personally I think the GMA speakers work well with all types of music. But that transient speed is what makes them shine with acoustic music like bluegrass.

Shakey

I havent heard the bigger GMAs but the bookshelf models I have heard are clearly flawed in the bass region IMO. The mid-upper bass which gives an acoustic instruments its woodiness character and to some extent the body was lacking seriously IMO.

Agree. The lack in the mid upper bass is due to the tiny cabinet volume of the bookshelf models. Anybody know how many litres Rio uses?

Apart from that, the driver they use is an aurasound woofer. For the price of Rio, you would expect accuton or scanspeak revelator etc.
Not a $20 woofer!