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

I realize that the 300b tube is being discussed in the context of utilization for preamplifier section duty. I've only used them as output tubes in power amplifiers.  I do believe that to get the best from this splendid (My opinion) tube you have to use the premium level options which admittedly are expensive (But worth it).

Elrog, EML,KR, Takatsuki,  these are going to yield exceptionally good sound quality. Worth the cost if you have the level of audio systems/components under discussion here. The Nenuphars will easily reveal the improvement these higher tier 300b tubes provide. I wouldn't cut corners. 
Charles 

Thanks Robert for the reply.

Currently I’m using the Bakoon 13R with a Bakoon dac, which is out of production. We should see a new dac from them at some point.

Since we’ve been discussing amps...here are two short clips of the Nenuphar being driven by Absolare’s Hybrid Integrated SE. Posting since I don’t recall mention of an Absolare pairing in this thread. Please correct me if that isn’t the case.

Courtesy of Dükkan Hifi, a dealer in Turkey. Note the use of Townshend Audio Supertweeters. There is a comment regarding their negative impact on sound quality, though Dukkan mentions in-person listening for a better / correct evaluation. I personally don’t see [hear] the need for the addition of supertweeters. Curious, nonetheless...Anyone using them with Cube Audio speakers?

https://www.youtube.com/watch?v=z0bLmC5rkig

https://www.youtube.com/watch?v=Ti2iJ7tXuqQ

For those of you who have the Nenuphar Mini speakers, here is a longer (mix) clip from Dükkan Hifi .

Driven by the Aesthetix Mimas Integrated Amplifier.

https://www.youtube.com/watch?v=IpM_9NfTL6U

Note: For all videos, the dealer recommends listening via headphones.

Robert  Thanks for update on tubes.  I believe the Takatsuki are VR's preferred DHT's for the L2iSE.

Charles  I wish I knew the 300b better as a driver.  Wondering in fact if there's anyone on the thread who is driving the Nens with the 300bs, can't recall.  Would love to hear their impressions.

David  From specs and reviews I think the Absolare Hybrid Integrated would be a terrific match and the audio I hear confirms.  BTW I did try using my Townshend super tweeters with my Nenuphars and honestly could not hear that they contributed to sound quality.  Could it be amp dependent?