Advice and help understanding, choosing a Widebander / Single Full Range Driver speaker?


I'm considering a second set of speakers for my primary system.

I'm satisfied and very happy with my current primary speakers (Tekton Design SEs), so this isn't about a replacement speaker, but I have been looking for something that is different enough from my Tektons, in terms of speaker type and design, etc.

My current top choices being Sound Labs or Cube Audio. Horns, maybe.

Srajan Ebaen's review of the Bliss C a year ago was what first exposed me to Cube Audio and his more recent review of the Nenuphar is stellar. Both reviews are copied in my follow-up post below.

I've been 'somewhat' exposed to full range drivers (or nearly so, with augmentation) as I've owned Zu Audio and Vaughn Loudspeakers and have been exposed to Teresonic speakers and Voxativ drivers. Still, I'm a neophyte with regards to this speaker type (single full-range driver).

Would love to learn more about the pros and cons of owning a true wide-bander and issues, pitfalls, etc. I should consider before moving forward.

Leaving this very general and open. Let's keep budget out of this also (I don't want to complicate the discussion). 

More on my system and room and preferences in subsequent posts.

Thanks!

(BTW - I did search the forums and there is 1 wide bander thread and 6 full range driver threads. None apply directly, but I will review each to see what I can pull out that may be relevant).
david_ten
One thing to keep in mind is that The Cubes, according to "6 Moons", do not get on well with amps of a high damping factor. I suspect your T+A is of the high damping factor persuasion. Even the 30.8 is on the high side, if I remember correctly.

I am personally intrigued by the Nenuphar but until I've heard the low bass they are supposed to be capable of, I will remain doubtful. I also wonder about the severity of response peaks and dips in the real world as well. But intrigued, I am.
@acresverde Thanks! I have the same concern. From the review it would likely mean moving to another preamp and amp in my chain. Srajan preferred First Watt over the 30.8 and I would think it would only get worse with the T+A with respect to the Cube speakers.
@bache  Thanks. The thread you linked did come up in my search and I'll take a look at it. 

I just looked at your website and the Skylar is your primary full range single driver speaker, correct?
Yes, Skylar is the primary, but  , my opinion the full range single 
driver speaker still get disadvantage to compare all my 
speakers based on the wideband drivers. The best is Bache -002.
They work perfect with 10-20 watt amp , and get bass . midbass and highs which coudnot compare with  one driver