Harbeth 40.3xd vs Graham LS5/5

Sorry , but for my money I'd buy the British built ATC SCM50 SL passive classic series speakers, for 20K.

not for mine...

@echoz - I have heard both the Ls5/5 and the Harbeth 40.3 and in my opinion the Harbeth's don't project as uniformly as well as the Ls5/5 doesalso I prefer my music a bit louder, while the ATC SCM50 SL handle more power I feel they are also better suited for orchestra and electronic music which is a bit more detail oriented.But we each have our own tastes, I have listened at great lengths to the ATC speakers and for me they check all of the boxes for my style of music and my system. 

@alucard19 now that is a proper curve ball :)
so based on your listening its atc scm50 > ls5/5 > 40.3

The hardest speaker to manage to listen to is the Spendor Classic
100. It is a no-show at the few, rare stocking dealers in the USA. Love the old BC1s.

I have heard the all the Harbeths and personally prefer the HLS 5+
followed by the 30.2 and the 40.2 comes in 3rd.  Just my ears.

Heard the ATC 40 passives a few times and they were the people's choice in our Speakerfest 2019 event. Heard them again in May and they
are super clear. Poorer recordings really can't be listened to. 

Grahams are Eric's choice from Gig Harbor Audio- one of my favorite haunts. Last month I listened for a good while to his top models.

So Mr. Echo I suggest a trip to the Great NW and a visit to Gig Harbor
Audio-Graham and Hawthorne Stereo-for Harbeth.

Someone once told be the truly best sound comes from Stirling
speakers. May have to visit London to hear those.

Final word-Harbeths resell pretty fast.

@echoz  You really need to listen to various makes and models in person; it's too risky basing a purchase of this magnitude on votes in a thread.

I don't dispute what @chorus heard, but here's my contrasting experience.  Listened to SHL5+ at Hawthorne in Seattle, in that brick-walled room with top-end Naim, and found them unbearably bright.  Heard 30.2 at CAF and thought them very good though inevitably with restricted bottom end.  Heard 40.2's at Deja Vu in Washington DC and immediately fell in love with them.  As I said, I was in England when I heard the Spendor Classics.

Inevitably, YMMV.

If you do start to try to hear some models, add the Yamaha NS-5000 to your list.