Which Harbeths?

• remove the grilles (it was still easy to do with the M30.1)
• listen closer, so you have more treble energy (mid-field, even near-field is still OK - note that ALL Habeth can be listen mid-field, EVEN the M40.x !)
• chose a very transparent and fast-sounding amplifier (solid state preferably). Note that the "ideal" amplifier for M30.1 and M30.2 respectively, is not necessarily the same.
  

Having heard harbeth 30.2 40th anniversary and Graham Audio ls 5/9 side by side for a few months, I can say that I love the BBC sound and I really love the Graham Audio execution better. If you like the treble of the 30.2, you don’t know what your missing with the similar grahams. Way more open up top but not harsh, even better balanced. Beware, to get the most of these speakers bass wise, a powerful amp is required.

@redwoodaudio old post but I think this is the only post I could find on the internet which compares the Graham LS5/9 to the Harbeth M30.2 40th anniversary. I have to admit, I have a fetish for speakers although I may have settled down with the hifi for good, currently have two pairs of speakers. I’ll try to make this short and avoid being long-winded. In what ways do you feel the LS5/9s are superior to the 30.2 40th Anniversary? I am a long time Harbeth user and now own the LS5/9. However, some used pairs of 30.2 40th Anniversary and recently C7ES3 XD that keep popping up in the market caught my eye, and interest. It is unlikely I’ll consider additional speakers but am curious in what ways the LS5/9 is more enjoyable than the 30.2 40th Anniversary.

I have listened to the 30.2 40th Anniversary many years ago when it was available at the dealers but did not compare it directly to the LS5/9 which I currently own, side by side. The LS5/9 surely sounds more enjoyable, more natural and open than the Harbeths which I have owned or listened to which include the SHL5, SHL5 Plus, C7ES3 and M30.1. The M30.2 40th Anniversary sounds quite similar to the 30.1 but with slightly more open midrange and treble, not as warm.

I owned the C7 es3xd for a while and can vouch it is a great speaker. When people say Harbeth's can play your favorite songs and make them sound great, believe it. There is a clear window into the music and it only wants to make you turn the volume higher (no fatigue). 

The downside that I saw is that in order to get them to stage well and really disappear they need some power. Sure they sounded great with my 14 wpc tube amp but the control an amp needs to hold on the speaker made the tone great, but that's so much less than this speaker can do when supplied with 60 plus wpc. If you find a ss amp that you like that's fine. I really enjoyed the Supernait.

The drawback and reason I sold the C7's is twofold. First they wanted to be set up right- not particularly more difficult than another speaker but I didn't want to move them. I'd rather wrestle a mid size floor stander than deal with stands and spikes and top heavy situations. Second is recreation. They do great with smaller stuff, trios, singer songwriter and very good with larger music.  Reason two, they get loud but don't really want to be pushed beyond. I'm responsible with volume and power and could hear them struggle and loose pace with other speakers I've had. Bass heavy music, tread lightly- Now to be fair the Supernait is like 85 wpc, maybe they'd do better with 150 per side, didn't try.

Good luck on your search. Part of the fun for me has been trying tons of gear over the years and I'm glad I tried Harbeth, and it's on my list to try again some day.

Thanks for sharing the experience @bjesien surely useful. There isn’t much comparison between the C7ES3 XD, M30.2 XD and 30.2 40th AE. Nevertheless, I am aware the C7ES3 XD is noticeably better than the original C7ES3 which sounds warmer and lacks clarity and detail.