Need help to select a speaker

@inteliaudio -

For smoothness and low distortion, it's hard to beat electrostatics. You might consider the Janszen Carmelita passive. Janszen's current lineup are unusual (if not unique) among electrostatic speakers in not being dipoles.

As you might expect, the speakers are somewhat directional in the high frequencies. This leads to a somewhat smaller sweet spot (though not head-in-a-vice), and also means greatly reduced interaction with the room, so less trouble with reflections from sidewalls and ceiling. Bass is handled by cone woofers.

I use the bigger model, the Valentina passive, with Apollon amps built around the PuriFi modules -- if I'm not mistaken, the same technology used in your NAD M33. I find the combination to be excellent, the best I've had in my many years of owning audio systems.

I love my ATC SCM 11 v2s, which I use with an REL T7x sub. With your budget, you could step up to the 19’s, which would likely be better yet. I listed to classical, alt/indy rock, acoustic music with vocals, and heavier rock, and everything sounds great, including at 65-70 db, which is where I do most of my listening.

P.S. Regarding my recommendation of the Janszen Carmelita Passive, I forgot to mention my listening habits. They are mostly classical, with an emphasis on chamber music, piano sonatas, choral music, and occasionally lieder, organ music, or music for full orchestra, especially concertos. I also listen to quite a bit of contemporary jazz (including male and female vocalists), to bluegrass and string-band music, and to other eclectic stuff like this album from the NJ Percussion Ensemble. The Janszens do great on all of it.

I listened to some Fyne speakers but then ended up with Canton Ref 9K  which are stand mounts with a port (on the back of the speakers). Sounds great to me but I have not compared them to Brittish speakers. Fyne are otherwise small and could fit in better in a bedroom. The Cantons have more bass than the Fyne I've heard.