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

@ abd,
Congratulations on acquiring the Nenuphar Mini speakers. Based on your listening impressions it seems with exception of one specific sonic parameter (Bite and slam) the sound quality is outstanding! Trying some other amplifiers for comparison is an excellent idea.

Based on your description with use of the Canary M 90 300b push pull it strikes me that you are 95% there as it is. It leads me to wonder if trying different tubes (300b and/or 6SN7) or power cable/interconnects might rectify the "bite and slam" concern. Which as you described is just a "touch" short.

Something to think about because otherwise the Canary M 90 +Nenuphar pairing appears to be an exceptionally good pairing (Unless there’s something I’m missing). You used the terms  "sublime"  "surreal" "fantastic" and that’s very telling in my opinion. The positive attributes you have noted are hard for many to achieve.
Charles

So been listening for a while today. Maybe this is a better way of describing the sound. With the Canary amp the sound is like peering into a deep funnel. It sucks you in and is very detailed and the tonality is so accurate and lifelike. It can be startling. The "funnel" starts at the plane of the speakers and descends back into the wall. It feels like falling into a blackhole.

With other amps I've had, the sound floats outward and around you. You feel as though you are in the music, not falling into it. I think this is why the current amp sounds "polite" to me or lacks a little punch. The sound seems a bit further way and even though its amazing, its not as tactile as some other amps I've enjoyed. A good example is the track Hello Night on  Zoë Keating's album Into the Trees. The very beginning of the track starts with sounds that quickly appear and disappear. With the Canary the sounds appear to be floating out ahead of you at various distances. With some other tube amps I've had (Primaluna, Line Magnetic, Linear Tube Audio) the sounds floated all around and almost behind you. The rest of the track, with the Canary, is tonally so accurate and powerful it is startling. With this amp it sounds like you're listening in an anechoic chamber because there's no reverb or haziness, but nothing is harsh or out of place. The detail of the bow's running across the strings is almost tangible. With the other amps you get a smoother sound here, but it is all over you like you're in a cloud of music. Wow, just a totally different presentation I guess, but maybe the way the Canary presents the music is why I'm feeling a slight lack of punch or bite.

Fun descriptions. Thanks for the elaboration

Hi folks, wondering if anyone with these Cube drivers listens to rock (e.g., Tool) or heavy electronica? 

I was reading a WBF thread where people pointed that out as a potential weakness... while still loving the speakers.

https://www.whatsbestforum.com/threads/wills-horn-finalists.28945/page-7

Mine are on order. I mainly listen to Classic Rock and investigated these before purchasing. I was assured there wouldnt be any issues by multiple people. Im not a Bass Head so Im not looking for that in a speaker.  Dont know TOOL's music but its probably MUCH more bombastic than what I listen to. I'll be sure to let people know down the road what I think of them with my music/room/amp choices etc  Ive got at least a dozen amps so something has to work!!