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

I estimate my Nenuphar speakers have 1500 hours on them. I kept precise numbers through early May and had logged 1100 hours as of May 7th. The EML 2A3 tubes have approximately 900 hours on them. 

In addition to break-in, I have worked on improving isolation and grounding. 

Next areas of focus are my Streamer / Player. I may move to a new brand or upgrade my current units. An in-home demo of a Server (being setup) should help decide direction. I will implement a full fiber optic network solution [I am 100% streaming] should I stay with my current server and player.

In the pipeline is a new Linear Power Supply (should be in system by the end of next week) for dedicated (and higher quality) supply duty for my Server. A full system power conditioning / power supply loan is in the works.

In case it isn't obvious, this is my way of saying that I am beyond pleased with the performance of the Cube Audio Nenuphar speakers as well as the components in support of them: Denafrips Terminator DAC > Grandinote Genesi preamp > Found-Music 2A3 monoblock amps. And committed to this system.

I estimate close to 750 hours of active and engaged listening time. The Audio Room serves as my home office (minimal, movable and height adjustable desk/seating in the 'sweet spot' and fanless (read silent) work electronics in an environment that measures in the high 40s for ambient noise, with the AC intake two rooms away serving as the primary culprit... when disabled: mid to low 40s).

Given my time and familiarity with the speakers, I'm ready to start writing a review.

Steakster,
 I also believe that David's audio system sounds "absolutely stunning ". A first rate signal chain (Denafrips, Grandinote Genesi and Found Music 2A3 SET) and the purity of the Nenuphar.  My gut feeling is that the level of naturalness,  tactile realism and subsequently deep emotionally involving/connecting music listening experience is simply sublime. No doubt in my mind that this system pulls you into the music and keeps you there. IMHO this is more difficult to accomplish and is more satisfying than Hifi spectacular objectives. 
Charles 

@david_ten, I can wholeheartedly recommend one of the music servers made by Fidata. IMO better than other well known brands, most of which we have compared. There are a couple of European designs which sound interesting but we haven’t had the opportunity of trying so far but both cost more than the Fidata. I don’t think you would be disappointed with Fidata. We are using in a system which includes the Cube Nenuphars.

@steakster  @charles1dad   Thank you! I'm getting there. Still working on it. : )

steakster: What dedicated conditioning solution(s) are you using?