Well when I placed my X3 order, I was looking at Jubilees too and almost bought them. It came down to me not wanting to deal with an electronic xover and two amps. But you can get into a pair of them for about the same money as the Spatials. That was a tough call for me, but I'm happy I went this way. You have a perfect room for the Jubes so that's a tough decision for you too.
My klipschorns had the A55-G midrange driver and Volti Audio xovers. I also had dampened the mid horn with modeling clay. They sounded very good and I was pretty happy with them in my 15.5 x 26 ft. room. I had them on the short wall. I would give the edge to the khorns for dynamics, but only slightly. The X3 comes very close. The khorn also has a little better bass impact because of the true horn loaded bass and corner loading of the design. Where the X3 pulls ahead is in bass pitch and accuracy. Every note is defined and easy to follow. I like this. The X3 also is more holographic and refined, as you would probably expect compared to older khorns. The thing I really like about the Spatial X3s is that they are very engaging and pull you into the music. That's about the highest praise I can give them.
As for your question about the M3, I have never heard them, so no comment there. This is the first Spatial speaker I have experienced. You can hardly go wrong either way, Jubes or X3. I would ask Clayton what he thinks about your room size. The X3s have no problem filling my space with ease.
Shakey
Thank you. It appears that you and I have similar tastes in what we enjoy about speaker ownership. Yes, the Jubilee is very tempting, but after having spoken with Clayton last week for a good while, and gaining insight on how and why the X3 came to be, I think the X3 is on par musically speaking with the Jubilees but in a different way. Where you mention that every note is defined and easy to follow in the X3, I don’t think the Jubilee would be equal in that quality, but the Jubilee may be more dynamic giving the illusion of a robust bass section, not necessarily the pitch and definition of the X3. The Jubilee will probably play louder as it’s all horn driven, but due to the high efficiency of the X3 and M3, it should be more than loud enough, but I have artillery ears, so loud is a pretty relative term for me.
I was also ascertaining and conducting my own mission analysis of the complexity of the Jubilee with the requirements to add an active crossover and additional amps. For some, that’s not an issue, and really for me not so either, but if I jump into this new speaker paradigm, at least I want to take an easy step and not one gigantic one, if you know what I mean. The Spatial X3 exudes the KISS philosophy, while Jubilee is for the tinkerer. Based on what I heard listening to the M3 with 10 watts ultra liner and 40 watts EL34s, the conversation with Clayton, and your listening impressions, the X3 probably throws many listening paradigms of so called high end speakers for a spin.
How do you feel about how the X3s wide band AMT tweeter handles high frequencies compared to a normal tweeter? I noticed that the M3 tweeter is rated to 40khz but the X3 is rated to 20khz as listed on the Spatial Audio page. I was under the impression that AMTs go much higher than 20khz in upper frequency response. I will probably sit about 8-10 feet from speakers depending on how far from back wall I place them. Does the sound of brass and cymbals seem natural sounding to you. I spin mostly vinyl and limit streaming so my benchmark sound tastes are from records.
Noticed your vette in the signature. Is that a C5Z06? I had one when I was in Germany, and raced at Hockenheim. Also the same millennium yellow. The titanium exhaust was awesome.
Audioquest4life