The Harbeth phenomenon


In my search for a new pair of speakers, I've gone through many threads here and noticed that many owners or fans of Harbeth have almost a love-like connection with Harbeth speakers. It is almost as if the speakers cast a spell upon them. I know many audiophiles love their speakers but Harbeth owners seem especially enamored with theirs. I am extremely puzzled by this phenomenon because on paper Harbeth speakers look average at best and lack many of the attributes that generally make a great speaker.

Their sensitivity of generally around the 86dB mark makes them rather inefficient and therefore, at least in theory, not a good match for many lower powered tube amps, or any amps below 100wpc. Their frequency range is simply inferior to most high-end speakers since they don't go below 40 Hz. This alone should, again at least in theory, disqualify Harbeth speakers from consideration as top high end speakers. And yet I've never heard anyone complain about their bass, while people complain about lack of bass in the Gibbon Nines from DeVore, which is a fantastic speaker. Their cabinets look like a cheap DIY enclosure (disclaimer: I've never seen a Harbeth up close, only pictures). The 7ES-3 is rated B-Restricted, while the smaller and cheaper Usher Be-718 A-Restricted in Stereophile but garners nowhere near the same amount of admiration, praise and following among audiophiles.

So what's going on here? Is this a big conspiracy plot by the company that paid off a few hundred of people to infiltrate audiophile internet forums and a few reviewers? I am of course joking here, but the question is serious. How can speakers so average on paper be so good in real life? I know the opposite is often true, but you rarely see this phenomenon.

Please speak up.
actusreus
Huy,
Thank you for posting this. I have never owned Harbeths so have never heard them in my rooms, but I found the models which I have heard all shared this same "pleasantness". So based on my experience these speakers are not natural nor are they accurate but rather they are pleasing and very forgiving to the program material. 
My experience with the Harbeths in terms of soundstaging/imaging is that they seem to achieve a large soundstage in a large room, but could not in my smaller 13' x 15' room.   (I had the SuperHL5Plus).
I've had tons of different speakers in my room and love a speaker that can do great soundstaging/imaging, and I've never had any problem achieving expansive soundstages.  But the Harbeths consistently had a somewhat foreshortened depth and width.   They "disappeared" nicely and imaged far better than their looks would imply, so I think they do great imaging generally speaking.
However, when I hear the same Harbeths in the very large, open showroom floors of a local hi-fi store, they can sound much more expansive.  In fact, last time I heard the SuperHL5plus it was in a very large show room, with subwoofers, and the speakers spaced quite far apart.  The soundstage was absolutely massive, with very nice depth.

@actusreus 
It's fun to see that this thread had been 10 yrs! I wonder if the original poster had an opportunity to audition or own harbeth speakers, and would love to hear his thought.

For my experience, I pulled the trigger of a used pair of SuperHL5plus and PrimaLuna Dialogue Premium HP tube integrated amp 1yr ago. The Harbeth showed its merits just like it's known. I listen to mostly vocal music in genres of, blues, soul, r&b, jazz, country, opera, classic, sometimes, rock and dance, and the Harbeth driven by tube amp was soooooo seductive in my small listening room (11x10 feet). I am enjoying my music ever since.
However, it's definitely not perfect, compared to my Focal Stellia headphone, the bass doesn't go super low, and it lacks some minute bass texture, and is not as detail as the Stellia. Don't get me wrong. SHL5plus has sufficiently satisfying bass to my taste and is quite transparent and reproduces details. I am comparing to one of the best high-end headphone, which is known to be the best in detail retrieval and amazing bass)
I have heard all of the Harbeth models. They have a family sound that is extremely attractive. Warmth is a word that comes to mind with these speakers...which, although something of a dirty word these days in high end, is where I believe a lot of gear fails. Without a certain warmth, I think there is something missing when we try and compare the sound of live instruments to what we hear in our listening rooms. Some will say we need neutral, which is fine, except most gear these days really is not neutral, instead it tends to be hyped and etched, IME. Harbeths are not for folks looking for the ultra resolving speaker that portrays every little detail and can err on the side of brightness. Instead, imho, they are quite realistic to what a lot of us hear when we attend a live event...just in a much smaller scale. 
If I didn’t already own a speaker that I think can do the Palpability trick so well, these would be on my short list...making sure the room is taken into consideration in regards to the model.
I will love Harbeth…. I always had British speakers...I lived 30 years with the Tannoy Dual Gold...Now I lived with the Mission Cyrus 781...They are very different speakers, the Tannoy being potentially the more sophisticated but needing some more fine tuning in the higher frequencies... The Mission being smaller needed also some fine tuning in the bass frequencies...The 2 sound natural and warm...

Warm but very detailed with surprizing bass( I never connected for more than one hour the sub-woofer I bought for the Mission which I no more needed after the fine tuning,I dont like trembling walls)

Now i am afraid to upgrade to anything, except Harbeth but I am not even sure and the increased in price will be very uphill compared to Mission used ( 30 bucks) :)


But never mind the speakers, 80 % of S.Q. comes from anything except the speakers: the 4 controlled embeddings being acoustical (passive and active) the mechanical (resonance) and the electrical house grid....Alas! Not most " audiophiles" know it really, and usual listeners dont know it at all...


Then whatever the speakers....