Efficient speaker: Zu, Tekton, Volti, Klipsch, Fleetwood?

We’re moving and I’m looking for a high-efficiency, high impedance speaker that can fill a very large “great room” with smooth, open, detailed sound, both for serious listening and casual background music. I currently have Devore Super 9s, but those will be going in a separate dedicated listening room. I thought about getting another pair of Devores (maybe the O/93) for the great room because I love this brand, but I’m interested in other possibilities The new speakers will be on either side of a 6-foot TV console, so they’ll need to sound good fairly close to the wall behind them. And they will need to have a reasonably good WAF. They will be played mainly at low-moderate sound levels and our tastes include rock, classical, world music and “spa” type relaxation stuff.

Anyone who is familiar with any of the following candidates, please feel free to sound off. As you can see, price ranges are all over the place:

Zu Soul Supreme

Tekton Lore

Volti Razz

Klipsch Forte IV

Fleetwood Deville



Tannoy Kingdom Royal MkII

4-way bass reflex, 8 ohm, freq. response 24Hz - 61 kHz (-6dB), sensitivity 96 dB for 2.83 volt at 1 metre, 90 deg conical dispersion. 

$40,000.00 each from Stereoland, Bloomington, MN



I think the titanium driven mid horn in Heresy III sounds better than the new poly driven and much simpler mid horn (the convoluted deep throated mid loading Heresy III horn is a very different design relative to the simple short throat IVs) in the heresy IVs. That said, best 1500 bucks I’ve ever spent (open box or something non sequential serial numbers new a few years ago Capitol Records 75th anniversary version). Clean and clear alleged 99db masterpieces I’ll likely never get rid of. 2 REL subs flesh out the lows...do they sound better than some of the far more costly options noted here? Meh...just don’t care...most other new efficient speakers are either ugly, expensive, or both.

I never heard any of them but if you randomly reorder the list, I can tell you that #2 and #4 are terrible. 

I've heard Volti's at shows a number of times and was consistently impressed -it's a great horn speaker, really a better Klipsch.  I've also heard Tekton's a number of times and was impressed from a price/performance perspective, but I don't think they are comparable to others on the list.  

I recently enjoyed a great demo of the new upgraded Fleetwood DeVille at OMA's showroom and was truly impressed -this is a great speaker with phenomenal bass for the size, terrific efficiency, a wonderful soundstage, and gorgeous cabinetry.  That would likely be my pick from this list.