Horns: Why don't they image well?


Anyone have a theory?

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erik_squires
Partly correct, but for many years horn systems have included "phase plugs" or their equivalent to keep horns from "beaming" high frequencies.
This statement is problematic. Phase plugs are used to prevent cancellation at higher frequencies, thus extending the upper range of the device.
Watch this folks....

I came to this thread really opposed to horns, and I'm not 100% on them today, but I'm not going to let the misinformation go unchallenged.

Horns don't "spread the sound". They mechanically couple a pressure impulse to the environment. Horns are MORE directional than dynamic drivers with more controlled dispersion. 

Indeed they are "MORE directional than ..," and It should make them less fuzzy about room acoustics, not to say they don't benefit from absolute care with regard to placement and even very minute changes in their positioning and toe-in, but that's true for a variety of speakers regardless of principle. Quite a few horn speakers can be placed in close proximity to the rear wall, with many of them even requiring it, and this alleviates to an extend their typical large size and intrusion in a living-/listening room milieu, without affecting "sound staging" negatively. 

Personally I fancy horn speakers often being rather wide (as opposed to the narrow baffle/deep enclosure seen with most direct radiating speakers), as it seems to subjectively highlight this big, vibrant "wall of sound"-like sonic presentation. If they're made with real-wood veneering or even hardwood they are also lovely to look at with their broad front panels and horns. I miss the sensation of speakers as wood furniture that actually looks and feels (and even smells) like real wood (instead of the lacquer-infested and glossy appearance from most modern speakers), while unapologetically taking up space as big sculptures in one's home environment, but that's just me.  

My own listening room is quite "alive" btw, an acoustic environment that's most pleasing for me to actually occupy, and with the all-horn speakers I use it's a non-issue sonically. Generally though I prefer diffusion over too much absorbing with any speakers, so not to rob the sound of what I regard as a natural life. But, I digress..
Partly correct, but for many years horn systems have included "phase plugs" or their equivalent to keep horns from "beaming" high frequencies. The high end horn systems I use for pro sound are designed to spread high frequencies over a large area, and they do that well, and the Klipsch Heresy IIIs I use in my home system easily have as good or better dispersion of high frequencies than the dynamic speakers I've owned over the years. 
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Anytime you use a giant waveguide to spread high frequencies you are trading off a large soundstage (flat power response) with less precise imaging (since the highs are getting stretched over a wider area).
I love my Heresy III , unfortunately they've been boxed up for 6 months...  just got them to my new place and am picking up a nice BDI rack in the morning...  can't wait to fire them back up this weekend.   They sound way better than that Altec blutooth speaker I've been using.
Most people's experience with horns is limited to VOT. VOT horns were designed for movie theaters and other such large rooms - not for your average living room.  A properly designed and built horn system can and does image realistically well. My experience with horns comes primarily from my long association with Dr. Bruce Edgar (Edgarhorn) who designed and built some of the finest horn systems I've ever heard. I've "rolled" some of my own and I assure you that they sounded and imaged remarkably well, too. If you're anywhere near So Cal I urge you to get in touch with Cyrus Brenneman (I can help) who has an exceptionally well sounding horn system based on Edgarhorn. Be prepared to be amazed. 
 I have owned apogee divas in the past which were pretty much one of the best imaging speakers I’ve ever heard. Now I own a 604E based system with Fostex tweeters on top and DIY dual subs on the bottom. True full range. They image just as good as the divas.   In fact they almost do a dense ball of sound image in the middle even better.   And they throw sound well outside the boundaries of the speakers as well. I partially attribute that to the tweeter horns dispersion pattern which widens it out a bit more than your typical dynamic driver. 
 Also voodoo funk  in advertently brings up a great point, the room has a huge contribution to how well the speakers will image. 
 Essentially a horn or wave guide couples the driver to the air better than without. I can’t see how that would be a bad thing in anyway. 
Well, you can always just put an old JBL C-31 in one corner, and forget imaging.  The music will still be there in the room with you! :-)
Well, you can always just install an old JBL C-31 in one corner and forget imaging.  The sound will still be there in the room with you! :-)

@erik_squires , love your self-portrait, man!  Now if you ever wander into my room at an audio show, I'll recognize you instantly.

Duke


I was just going to provide the same link.
Can't wait to all the detractions.
Here is Steve Guttenberg on "Here’s why horn speakers sound better than other types"

JBL and Klipsch fans, rejoice.

From his Audiophiliac YouTube Channel:

https://www.youtube.com/watch?v=txRsNmMGWZo
This has become one of the most active and fun to read threads I've ever seen.

Thank you to everyone who has been contributing. :)

Best,
OT (original troll)
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"...as the sound and the visual gives me the complete experience, this is why I opt for big ESL's. "

I have both Martin Logans and Vandersteen 2's in two different rooms in the house and the ESLs don't even come close to the image accuracy I get from the Vandersteens at "normal" listening distances. They do image better if I walk back to the end of the room, roughly 30' away. Otherwise every instrument even the singer is exaggerated in size. Same experience  when I briefly owned Magnepans. My back-horn loaded single drivers upstairs have better image specificity than both but at the expense of lesser bass and only in a smaller room and at lower listening levels.

@kosst_amojan --

I can imagine a Meyer Setup sounding better than a JBL ditto. At live (amplified) concerts the acoustics and mixing has a huge influence on the perceived sound, but there’s still an imprinting that falls back on the specific gear used - speakers in particular, and also how they’re arranged (never been fond of the large PA-arrays that is typically used nowadays, but there are exceptions of satisfying implementations here). A local cinema uses Meyer Sound (EXP) speakers, and they’re fuller and more relaxed sounding compared to other cinemas in the area that use QSC or JBL.

Re: Klipsch La Scala II: great that you found the opportunity and not least took the initiative to audition them. I haven’t heard them myself, in any iteration, but my own speakers are based on the Klipsch Belle - a "belle," close sibling to the La Scala - that is, in the case of my speakers: the bass horn is more or less the same, and the rest is different and, dare I say, of better quality; be that the cabinet construction, crossovers, drivers, etc. I find they image beautifully (and are very coherent), the only real mild downside here being a restricted image height, but once you place yourself low enough in the seating position in front of them I find it to be a non-issue. The two other areas of either coloration or deficiency is a resonant character in the upper bass and lower midrange and, as you pointed to with your impressions of the La Scala’s, that they roll off quickly below some 55-60Hz. I use a sub with my speakers, so lack of extension isn’t an issue any longer (in fact I’ll replace my current sub with a pair of tapped horn subs in about a month time - should be interesting). And the upper bass/lower mids coloration (depending on the material can give the impression of a slightly hollow and resonant character that obscures details) might be alleviated once a high quality DSP will be implemented within shortly. The outlook for a true all-horn speaker setup (from 20Hz on up), which is quite rare, has me excited.

It seems to me there are inherent traits if you will with horn speakers - like that of (macro-) dynamics and perhaps their sonic presence - that won’t appeal to you in whatever form these will be (and that you find objectionable at live gigs as well), and that’s totally cool. I do believe however that you have even better sonic experiences of horn speakers to look forward to, or certainly be presented with in the future. That the La Scala’s brought you closer to this realization, not least in light of your formerly expressed hatred almost of horn sound, I find very promising. Please let us know of any future horn-speaker expositions, should they occur. Not least be aware of whether these are all-horns or hybrids..
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I'm not sure what acoustic advantage a loft with 16 foot ceilings would provide, unless you got to keep some rugs, wall hangings, and soft furniture after the divorce.
@voodoofun

Yes, thank you for the constant, daily reminder of your studio loft, connections to important people and access to recording studios. Thank you for letting every corner of the internet know of your advantages in life and in this hobby.
Funny...one of the first statements I hear when people listen to my customized pre 2006 Avantgardes is how well they image.

Listening to a lot of other systems I tend to agree...my Horns do indeed image well!

Of course it probably helps that I listen in a 1250 sq. ft. studio/loft with 16 ft. high ceilings!
Don't know whether you would consider these horn speakers, but they are superb and the image well:

https://www.youtube.com/watch?v=YPffpT-sRz0

dc10Audio / Viking Acoustics Berlin R's.



Kosst, To each his own. I am not sure you wrote want you really wanted to say. In your latest description above, you gave Kudos to what you heard. Besides, I am not trying to dismiss anything you say, nor any opinion you have. Early on when we first communicated, you indicated you did not like the sound of live horns, as well as many other live instruments, which was interesting to me, as you, and other members of your family, played instruments. I understand the fact that you prefer hifi sound as opposed to live sound. Your last statement is amusing. Again, enjoy your dynamic speakers, as I will enjoy my horn speakers. No need to continue on this path. It is all about the music. Enjoy !MrD. 
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120 db spl ? Are you kidding me. You think this is why I like horns. Again, clueless. I compare systems to live, unamplified music. The further you are from the musicians, the less specific the image is of the location of the performers. 50 plus years of listening, using my ears, experimenting and setting up all sorts of gear ( home and pro ), being on stage, behind the stage, in studios, and, more homes than I can count, I am happiest with what my modified, updated and tweaked Lascalas, and what they present to " me " ( especially at the ridiculous low cost of them ). That is all that matters. There are so many aspects of sound, related to music. Arguing and discussing this back and forth is ridiculous. I am glad you guys have found your areas of happiness. Enjoy all ! MrD.
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Nothing quite like Heresys in a large warehouse...however, with Heresy IIIs 9 feet from my head the imaging is astonishingly good. Come on over and hear 'em George (see, I know he's in Australia and unlikely to find me here near Boston, still...).
Also like you mr. d, i did not get my horns because I wanted that pinpoint imaging, that just turned out to be a big bonus for me. I got them for their impressive off the charts dynamic capabilities, high sensitivity and ease of use to mate with tube amps, or low watt class a, and sense of scale and 'thereness' that a good horn system does better than a good standard 3 way. that is just my experience, at least.

Um I was just trying to point out that the m2/4367 use a different horn waveguide and as such would sound a lot different than la scalas or smith horns. I have always enjoyed and respected georoge's posts, and I have no doubt that audio psychic convey a better imaging stage compared to older horn designs.
kosst, I implore you, as well, to listen to that Miles recording, through your F5 / Focal 936 system. If you do not hear compression, then I question your hearing ability, or your audio knowledge of what compression is. I cannot say it any other way. Enjoy ! MrD. 
George, you can't be serious ? You truly believe that an ESL does not change / exaggerate the image size, and that it is the only design that can show the head movement of Miles. Contrary to what you believe, you are mistaken. However, to each his own. I suggest you listen to that Miles recording I spoke about, and please, get back to me. Enjoy ! MrD.
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For me MrD, I want to see every movement visually, when Miles turns slightly left or right or even facing up then down blatting away on that horn and imagine those fingers moving up and down those valves, as the sound and the visual gives me the complete experience, this is why I opt for big ESL's. 
Or I suppose I could sacrifice that and have TV between the speakers to make up for the visual side and play dvd music discs.
For me not just a wall of sound where the trumpet seems to be an edge-less 8ft tall and wide, same goes with singers mouths, I can get that far cheaper yet not as nice from used Bose 901’s this is where the tv would come in handy.

Cheers George
Remember, George is just a man, with just an opinion. I respect his judgement, as I respect his knowledge. We all hear differently, and, at least us old timers, want certain attributes and specifics in our systems. I was attracted to horns, not because of imaging or sound staging, but because of their ease, their effortless, dynamic quality that allows music to flow, like live unamplified music. I certainly hear an image created, a stage being presented, music being created, without boundaries, extending beyond every and all of the walls of my speakers. However, I feel this is not the essence of music. What is the essence, is the musicianship. Take a recording like " A Tribute To Jack Johnson ", by Miles Davis ( the original release ), possibly my favorite of his vast library. Two studio sessions, one recorded on 4 / 7, the other recorded 11 / 11 of 1970, brought forth the amazing arrangements of M.D., along with five other fabulous musicians. Want to hear synchronicity at its finest, play it through a great set of horns. Either your system will, or will not, keep up. Enjoy ! MrD.
Never heard the 4367’s so I can’t comment on them. But looking at that 3" Mid/Highs driver with massive horn crossing over to a 15" at 700hz makes me curious.

Cheers George
That’s a BIG reason I own Focal. Every time I heard their speakers they were honest and imaged with startling depth, width, and dynamics.
A friend who owns a hifi shop, Len Wallis Audio had the Grand Utopia’s setup driven by Krells in the main room, I listened to them many times and yes, there is no way any horns or JBL’s (my friend had a pair of 4350’s and the very ugly Synthesis 1400), I’ve heard have come close to doing visual image placement in-between and outside the speakers and depth perception like these Focals could, or many ESL’s can either.

Cheers George
@georgehifi I asked have you heard m2/4367. Not all horns are created equal. The JBL patented waveguide used in the M2 and the 4367 is a different sort of beast from the other horns you've heard. Correct me if I'm wrong, but yeah it seems like youre saying you have not heard the m2/4367 and are lumping those horns with Klipsh.
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Okay. But have you heard them?
Yes as I've said elsewhere on Agon, I've owned Lascala's, and Forte, a friend owned K-horns and Heresy, in a large converted warehouse. Enjoyable wall of sound all of them, but not precise visual image placement in-between and outside the speaker, and not much depth perception. 

Cheers George
After living with my jbl 4367 for a month, I just don’t see how imaging could be improved that much more.
Do yourself a favor and maybe listen to some relatively cheap Audio Physics speakers, to see what image placement in between and outside the speakers and 3D depth perspective is all about. Then say come back and the same.

Cheers George
After living with my jbl 4367 for a month, I just don’t see how imaging could be improved that much more. Have any if you guys heard the new wave guide on the m2/4367?
I’m willing to sacrifice a tad of dynamics for better imaging. I can totally understand how somebody would reverse those priorities and deem horns virtually perfect.
That’s not just the only problem, then there’s the "horn" (gain coloration) to contend with as well, not to be confused with the far shallower wave guides ( pattern control ) as some will try to bring into it.

Cheers George
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Wait...can we get back to my pizza question? I get frustrated when questions are ignored...
@kosst_amojan
Horns have to get pretty enormous to really play bass.

My speakers play a compromise on that- they use TAD 1602s (15", free air resonance at 22Hz, 97 db 1 watt 1 meter). They are set up with two woofers per cabinet. No problem playing flat to 20Hz. But the rest of the system is horn based. I've often wondered what a system like this could sound like if a Lowther or the like was employed using the same 500Hz crossover frequency.  But it images great (which doesn't come from a woofer anyway) so its been more of a thought exercise than anything else.
Mr. D,

You are right. No series iii that I can find. They looked new and I asked the guy in the room if they were the latest series and he said yes.   So if there is a new series in the works maybe these were them, not sure now.

Maybe someone else who was at the show knows for sure.



I was told that the new LaScala III will have a new tweeter and also have upgraded internal wiring (Audioquest?).  Price is 10K?  Can't confirm the accuracy of this, nothing is on the Klipsch website.