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

"Does anyone know how they differ"?
Differences between the model generations were covered in Dudley's review. 
Charles 

@stephendunn  Thanks for taking the effort and time [it's a  significant undertaking] on removing the Nenuphars from the Townshend platforms and conducting the A/Bs both on and off of the platforms.

Thanks also for sharing your results and your overall preference.

For me, the platforms are a NO GO. It's unfortunate that we can't listen to each others' setups. : )

@kw6  +1 to @stephendunn 's response to your question (both copied below):

Stephen >>> "Nenuphars have ten inch drivers....those drivers deliver a ton of top end air.  Have you read reviews at 6 Moons, Stereo Times and avshowrooms among others?  They might help overcome your concerns about a single wideband driver. "

You >>> "Still concerned no tweeter not able to get top end air! What do you think?"

BTW, I just read up on the Odeon Rigoletto 2020s and they appear to be a great choice.

@abd1  You have excellent company and are in a very good place with your Alan Eaton and Primaluna amps and those tube choices at your disposal. For me, reading your post is happiness inducing. Thanks!!!

david_ten I was curious about the platforms and since my last iteration was with the speakers on their spikes I've done a little experimenting.  I found that I much prefer the Stillpoints Ultra SS in place of the front spikes!  I'm not sure if I like them better than the platforms, but all this has made me realize that driver height makes a big difference with the Nens.  Off the platforms the middle of the driver, dare I say tweeter?, is pretty much at ear height.  On the platforms they are almost 3" higher.  That alone, regardless of what the platform technology is doing, is going to impact SQ.