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

@stevendunn,
In a way I’m not surprised by your listening impressions using a super tweeter. I just do not believe that the Nenuphar needs this assistance in the ’vast' majority of listening situations. Cube Audio developed a remarkable wide/full range driver. Many owners find they do just fine without utilization of a subwoofer. Definitely need/preference based.
Charles

Charles  However Srajan did have a positive experience using the two Advantages Audio super tweeters with the Nenuphars: https://6moons.com/audioreview_articles/avantages2/
These are omni directional super tweeters for what that's worth.

Hi Steven , I have zero doubt that some listeners will find super tweeters and subwoofer augmentation beneficial with the Nenuphars.  I was just expressing the point that many will find them just fine "au naturel" 😊.
Charles 

I did ask Jon why he didn't use tube amps. He smiled and said he was good friends with Nelson Pass....

Jon also used Pass/FirstWatt amps and preamps back in his Lowther America days.

Robert

I just hooked up a pair of Sophia Electric 91-01 mono blocks to my Nenuphar minis. I really haven’t had time to listen much at all so too early to assess but in the brief time listening I am liking what I’m hearing. The reason I went for these amps is the owner was including an almost new pair of Takatsuki 300b’s. I started listening with a pair of included Shuguang black treasure series 300b’s. They were fine but a little lean sounding. I just put in the takatsuki’s and wow, huge difference. Tone is richer and soundstage wider and deeper. Everything just got bigger and more alive sounding. When I get more time with this combo I’ll report back. I’m also moving and will have a much better listening space but that won’t be until mid September. 
I’m also wondering if anyone is using a sub with their Nenuphars? I’m using a pair of REL T5i’s. I’ve been really impressed by these little subs. I don’t have them turned up much but they really blend well.