Tube amp Friendly Speaker That Sounds like Klipsch Cornwall

The key is the match.  I used to have a pair of Maggie 3.5R's.  I found them as responsive as a giant hunk of granite.  They loved the power and took a high current to drive.  When you hit the sweet spot though, wow.  It was such an exact speaker that you could hear people talking in the background of lots of the Beatles recordings.  After several other trades and evolutions, I moved to the Altec Lansing A7-500's (16 ohm).  Tried these using the same amp as the Maggie's and felt the sound quality went down.  The horn could be piercing and the woofer wompy.  When hooked up to a 6 watt SET however, its the sweetest, most wonderful sounding system I have ever heard, a true toe curler.  The horn sound that was there using the higher power amp went away and the bass is a sweet reach around hug.  This combination actually sounds good at lower volumes and gets adequately loud enough that my wife can hear me, from our second floor, very well, from a sound dampened basement (I blame the hvac).  If you are buying new, you need to ask to audition.  If its a really good place that you have done business with, this shouldn't be an issue.  Otherwise, load up your amp and other accoutrements and head to the store.  If still denied, buy somewhere else.  I view this as going to buy a car without a test drive.  What some places want you to do is sit in their car and just say vroom, vroom and imagine.  Get as close as you to what your system will be prior to buying and believe your ears and not someone else's.  The Cornwall's as sensitive as they are, they just need the proper amp.  Using pipes as a metaphor, your Maggie's are like the drain pipes coming off of Hoover dam and the Cornwall's are like the pipes in a cathedral organ.  Each beautiful but totally different. 

Oz,

Just lack of bracing is what I was thinking about. It does not seem like there is any side bracing that is typical for higher end speakers. Think B&W “matrix” bracing.

I have always rationalized bracing to be important in my head but have never tried bracing in isolation so hard to say how much it matters at normal listening volumes (I am not a loud listener. 85db Max)
Good point about the ports. I overlooked the value of that. 
Anyway I value dynamic (transients and impact) above all things and still want to hear these and possible buy them as a total step change to what I am used too. At $6k these are a cheap option is our crazy world lol. 
I follow your posts and many others that say they are good so I assume they are. 

@james633 , The Cornwalls are very nicely put together for a box speaker. The quality of the veneers and cloth are excellent. As for bracing, the front panel is braced by the woofer and horns, the sides, bottom and top are narrow and stiff. If they resonate at all it would be upe where the midrange horn is which is, by virtue of it's construction isolated from the enclosure. The back panel is the only one that might benefit from bracing. Just tap it with a mallet and see if it rings anywhere. If it does see if you can identify the frequency. In the old day the rear panel was screwed on and the speakers were mounted from the rear. Not sure how they are doing it today. But, if you think they need bracing you can always add it. My guess is they do not particularly if you are using subs.
With the active cross over you have Cornwalls with good subs would be absolute killer!

The CW IV does have two internal braces between the motor board and the rear panel. This is what I mentioned above and it has clearly cleaned up the midbass resonance the older cornwalls were known for.

Oz

@hoosierinohio Very nice analogies! Keep up the good work...