Cube Audio Nenuphar Single Driver Speaker (10 inch) TQWT Enclosure

@abd1   From what Ive read elsewhere the First Watt Sit amps work better with the V1 models due to the different ohms factor.  Still have my V1 Mini's brand new in the crate (Ford Mustang Blue)    Great write-up above. Im sure I'll find your notes very useful so thanks for that!!

Why are they still in the crate!?

I enjoyed the SIT3 very much with the v2 drivers. I didn’t have it when I had the v1 drivers. I only sold it because I wanted an amp to use in the summer months instead of the LM845, which can moonlight as a heater, and it still got pretty hot for that purpose. 

@arafiq   Here is a link to a YOUTUBE Vid from Cube Audio comparing 2A3, 300B, 211 with their speakers.  Hope you find it useful.

https://www.youtube.com/watch?v=5YOVWHf3M0c

I really appreciate the detailed responses and the video link to my initial query. There's no doubt that this is a very good speaker, however, doesn't seem to be a good fit for my amps. Based on what I'm reading, it will most likely result in overdamping. Secondly, my concerns about the Neunephars being not the easiest to position are also somewhat confirmed by the responses.

I've also talked to some owners and sounds like resale is perhaps below average. I do see several used Cube Audio speakers going for less than 50% and still not moving. Of course, this does not mean they're less than stellar, but the fact remains that buying without first auditioning in my system is a risky endeavor -- especially, given the speakers are highly dependent on amp pairing. I don't want to go down the flea watt amp route at this time.

Having said that, I do want to explore speakers which are not your typical multiple dynamic cone drivers in an inert cabinet. Nothing wrong with that of course, but I'm kinda bored with the same old same old. I really like my Magnepan 3.7i speakers but they have several deficiencies that are hard to live with long term. I'm going to explore omni-directional -- MBLs or German Physiks as my next step. Again, thank you for taking the time to respond to my question.