Harbeth 40.3xd vs Graham LS5/5

I can say this- Listened to the Graham $18k and $23k speakers
in August.

I heard the 30.2 and 40.2 at Axpona or RMAF in 2019.
Preferred the 30.2 over the 40.2. Same sized hotel room
for both and was probably too small for the 40.2s.

As for the Grahams. Flawless sound and very neutral.
Although at these prices I think there may be better out there.
I appreciate engagement.

the reality is, all these are tip top speakers in the bbc heritage, produced by two of illustrious current producers

thus in a good setup, with proper accompanying componentry, good room, any and all will sound brilliant (save the mon 30, which will still need low bass support from sub(s))

op has asked a hard question - which is how two such competing 20k+ speakers sound different each other - and we all know there is only one way to really know... (even competing displays in different rooms in a high end show wouldn’t answer that question properly)

Sorry i dint mean to ask a hard question - it was a real desire to know the diff :) i find there is little in terms of comparisons between thr top end BBC (ish) type speakers. So its the usual questions for around $22k Which one is the better buy? How do they compare? Etc etc. its becoming increasingly hard to hear these speakers back to back so the only option is to ask, and then try to set up a comparison for one self.
For $20k Grahams aren’t ubiquitously reviewed....specially the 5/5’s. 
Hence the hard q :)

I recently dropped some money on a nice lampizator dac, absolare integrated amp, and some good cables, having first spent big money on the LS5/5s earlier this year. The LS5/5s are like a giant clear window into the rest of the system. You’ll enjoy them with merely very good gear like I did for a while, but they are almost overwhelmingly invisible and real with a clean very powerful signal in a good room. Truly full-range and very ‘alive’ without fatigue. No second guessing.

@echoz

hard questions are absolutely allowed, and welcome... though convenient and good answers may be hard to come by

the following review may help a bit... as i mentioned earlier, the modern iteration of the spendor sp100 is the closest analog to the ls5/5 by graham, minus the vertical face slots... (i currently have the prior gen sp100 r2 and i had the mon 40.1 in the past, i would say this review is reasonably on target)

http://highfidelity.pl/@main-1106&lang=en