Horn based loudspeakers why the controversy?


As just another way to build a loudspeaker system why such disputes in forums when horns are mentioned?    They can solve many issues that plague standard designs but with all things have there own.  So why such hate?  As a loudspeaker designer I work with and can appreciate all transducer and loudspeaker types and I understand that we all have different needs budgets experiences tastes biases.  But if you dare suggest horns so many have a problem with that suggestion..why?
128x128johnk
I also have Moral Carbon loudspeakers SEAS best about and while those loudspeakers do have a good sound I very quickly tire of the unnatural soundstaging, the lack of mid bass impact even with subs, that forced fatiguing sound. Once you are exposed to the big horns its hard to listen to anything but. I even convinced a few sellers of such small things to run large horns in home systems.                                                                                         Horns can sound near real. I have had more than one guest ask if I had a real band playing in my audioroom as they aproached door. I have never had anyone think a standard audiophile system was the real thing only the large horns. I had a few audiopros over doing design work. During downtime between demoing results I played the big horns as back ground music even those jaded audio pros couldnt focous on work when the large horns were on they are so engaging. When designing crazy costly consumer speaker systems I can not compare to the large far more affordable horns I own since the horns are so much better. I just compare them to standard audiophile fare.
Duke my office systems running 5 -15s, pair community leviathans 4x 515b, 90d community with Altec 288,Faital pro tweeters community SQ60 horn and a 15 sub woofer. I use it at low levels nearfield everday. My Shearer horns run 4x15, my giant conicals have  pair EV 15KW. My sub bass horn 4 custom built 15s. 

@shadorne wrote:  "There are only a few audiophiles today who understand what a big speaker with large 15” woofers and 4” voice coils can do and even fewer who are willing to pay the price in terms of poor WAF and transport logistical headaches!"

Amen brother. 

I show big speakers at audio shows (hybrids, not fullrange horn systems) and see people listening with their eyes instead of with their ears all the time.  They walk up to the room expectantly because they heard something that sounded good through the open doorway, then they see a big woofer and a horn and recoil in surprise, spin round, and scurry away as if they don't want to get caught near such speakers.  But if you do the math, those big powerful woofers often have a better motor-strength-to-moving-mass ratio than the expensive little audiophile darling midwoofers the eye-listeners were hoping to see, not counting the air-coupling benefits of the larger cone area (which are amplified by horn-loading, something I don't do because my speakers gotta fit into my car when crated up). 

A top-notch reviewer (whose day jobs include math professor and professional musician) once remarked to me that speaker designers are getting better and better at solving the wrong problems.  There are very basic problems that 15" woofers and 4" voice coils solve which aren't even acknowledged by most of the industry.

Duke

@phusis

What Greg Timbers says is so true. All the points are accurate. You can’t fool physics.

There are only a few audiophiles today who understand what a big speaker with large 15” woofers and 4” voice coils can do and even fewer who are willing to pay the price in terms of poor WAF and transport logistical headaches! And I include audiophile dealers/retailers in this boat - as dealers tend to only carry what they have a good chance of selling (and who can blame them for that).

It is true but currently 99.99% prefer what Greg calls “toy speakers”...

Cessaro seems to be one of the most elite horn brand of loudspeakers based on my research. 
Greg Timbers (of JBL) on the evolution of loudspeakers, and how you really can’t fool physics nor the importance of efficiency:


How has the sound of speakers changed over the years? Many yearn for the speakers of the past over those of today… what has changed? Distortion, materials, focus on sound characteristics?

- Speakers have generally become smoother, more 3-dimensional and much smaller. This means that they are less dynamic on the whole and rather toy like compared to good stuff from the 60s and 70s. Unlike electronics, miniaturization is not a good thing with loudspeakers. There is no substitute for size and horsepower. Nothing much has changed with the laws of physics in the last 100 years so what it takes to make dynamic life-like sound is unchanged. There have been some advances in magnet materials and a bunch of progress in adhesives but not much else. The cost of a 70s system in today’s economy would be considered unaffordable and the system would be deemed unnecessarily huge. The large highly efficient systems of old came at a time when 15 – 30 watts of power was the norm. Today’s stuff would choke on those amplifiers. Now that power is cheap, size and efficiency has been thrown out the window because you can always apply more power. Unfortunately, more power does not make up for lack of efficiency. Today’s speakers range between 0.1% to maybe 0.5% in efficiency. (On a good day) 60s and 70s stuff was more like 1% to 10%. With most of the losses gong to heat, turning up the power on a small system with small voice coils and poor heat management is definitely not equivalent to a large high efficient speaker.

It is true that the response of many of the old systems was a bit ragged and generally less attention was put in the crossover networks because simplicity generally means higher through-put. However, the big Altec’s, JBL’s, Klipsch’s and Tannoys of the day would still fair well today with a little modernization of the enclosures and crossovers.

Today’s multi-channel home theater setups let a bunch of small toy loudspeakers and a sub or two sound pretty big and impressive to the average Joe. I think speakers have mostly become a commodity and small size and price are what counts the most now. The few high-end brands left are struggling for market share in this age of ear buds.


https://positive-feedback.com/interviews/greg-timbers-jbl/
I completely agree that speakers like the Heresy IIIs I have been enjoying are perhaps the most coherent I've heard to their 58hz or so limits (there is bass below that point of course, but not in the same tonal or dynamic ballpark)...very clean, accurate, and impactful bass in that range, utterly enhanced by 2 carefully adjusted subs. I just looked up the aforementioned Charney speakers and man...beautiful craftsmanship and nice ideas...Maybe I'll hear 'em at a show sometime.
Gawdbless,

Strumenti Acustici de Precisione no longer exists, but the owner/designer, Vincenzo Fratello,  has a new company called DolceVita Audio.  It is even harder to find references to that company.  A dealer in my Northern Virginia area, Deja Vu Audio, heard the new lineup of speakers in Italy and plans to bring it into his shop when production commences.  I don't think there are any horn designs in the new lineup, but, the speakers are probably worth hearing; this particular dealer makes custom horn speakers from vintage and new parts and is very much in tune to the sound of horn-based systems.  

The Oris horn, using full-range drivers as mid to upper frequency drivers is a very promising approach.  Used that way, many such drivers sound much smoother and natural than as truly full range drivers.  I have heard Lowther, AER and Feastrix and cheap Tang Band drivers used this way and the systems sounded quite good. 

The only time I heard a full-range driver sound great without any other drivers is the Charney Audio back-loaded horn--a quite amazing system give that it sounds good, looks presentable, does not take up much room and is very reasonably priced.   I've heard the Charney with a Voxativ driver and an AER driver (I like the AER more because it sounded smoothly extended in its top range).  The Voxativ full range systems (of course using their drivers) sound good too, but I'll still take the Charneys.
Except music with a 5 string bass at 31hz for the low B, percussion overtones, pianos, the ambient sound around live orchestras, life...etc....
Well. life is not music, but yes, there are a fair number of sources for below 40Hz bass. Still, a lot of popular music is excluded. Being that reviewers often listen to classical, pipe organ, and such as references, it's perplexing as to why so many confuse the 2nd octave for the first. I realize speakers often get some reinforcement in way of room placement, but still, many "budget" floorstanders don't produce anything useful below 35Hz. I'd rather have a speaker that sacrifices everything below 40Hz in exchange for tactile and defined bass above that - which is what you get with Klispch Heritage.


@larryi - thank you, you've certainly heard many horn systems!
Not heard of the Italian  make you have  Strumenti Acustici de Precisione, as I have an Italy backgroung , I will make sure I try and find a dealer in italy close to me to have a listen when I visit. I also would like to hear a pair of Ocello's from the UK. I have heard some big horns at various Hi-Fi shows, 'Classic Audio Loudspeakers' Horns springs to mind from memory. My Oris 150's were made by johnK, I've had them since 2007, and I must say that I would not swap them for any of the Horns that I have heard so far. They are streets ahead of my stock Klipschorns sound wise.

I sold a good num of very large front and back loaded sub bass systems for home audio and also for simulator use. The costs get crazy high very fast. Audiophiles also want veneer or other deluxe finish this adds greatly to costs when things get crazy large, it also adds greatly to packing costs and shipping since you have to pack to keep a 800lb full veneered horn from even the slightest damage a imposible task. With home installs many times you have to hire someone to help tote and someone who knows set up (I had to hire 6 men to move my subbass horn to new audioroom). And most audiorooms can not house or even if they could horn wouldnt fit up stairs through door arround corner etc. I did put alot of design effort into more portable giant designs and ones that easily come apart to fit such but markets limited and the above is problematic. Today I turn customers away and just build the large ones for my own use. Its far easier and cheaper to just slap ported cab to cover mid and bass thus why most are such.
... If mid bass and bass are proper horns they yield some of the best mid bass and bass availble but as I mentioned above its were product gets compromised DIY types are free to build proper sized but they are not easily availble maybe this is part of the issue hardly anyone has heard or owned full range all horn loaded systems and they take knowledge and sometimes real physical work to set up. And face it most just want to easily buy just open box and plug in. But with many things in life sometimes whats easy and convenient is not whats best.

The size of an all-horn system that extends down 20-30Hz range, or even lower, is not trivial, certainly not with dual subs or more. DIY is usually the approach to seek here as there are relatively few pre-assembled solutions to be had, and the ones that are typically counts pro subs tuned higher (around 35-45Hz, perhaps) for more pronounced midbass impact. Danley Sound Labs on the other hand, a pro reinforcement manufacturer, offer viable horn sub alternatives for domestic use, some of which extends down 20Hz and lower. The very few "hifi" options there are of horn subs are really outrageously priced and mostly statement products (what’s expensive here tends to simply be luxury finish, added to more complex product assembly), and this narrows down the appeal to the über-wealthy that are hardly representative of audiophiles in general. So, DIY or used Vintage is the route to go (if not Danley), and this often requires some elaborate research to get a bearing on the iterations that suit one’s needs and possible practical limitations the best. It’s an interesting journey, however, and there are DIY-communities around (like Avsforum, Bill Fitz Maurice forum, Klipsch ditto and others) that are very helpful to aid one’s quest here.

My own tapped horn subs extends to 20Hz, and it’s a different bass compared to the direct radiator subs I’ve heard - indeed, I’ve never heard bass of this quality before. Horn bass like this doesn’t have what I regard as a degree of thickening, smear and slightly massive feel of some if not most DR subs, and the sheer presence, smoothness, ease and informative nature of TH(/FLH) subs is rather unique. Horn bass somehow sounds less like "bass" and more like an enveloping, differentiated downwards extension (with a livelier upper band as well), and it can give the initial impression that some of the more heavy-handed or even ponderous weight and "pulsating" nature of DR’s is a disadvantage with movies in particular. You quickly realize though, or so I find, that the differentiation of horn bass opens it up with better dynamics to boot, and it makes for a more whole, coherent overall experience.

You might think that boxes this big (in my case 20 cubic feet per horn) would overwhelm the experience (and of course you could make them if dialed too hot) as a sonic bass entity per se, but quite to the contrary they blend in more effectively; they’re simply easier to integrate with all-horn mains, I find, with the proviso that the size of the horns themselves can be a challenge to make acoustically invisible in one’s listening room, unless space is sufficient of even abundant.

In any case I’m still baffled to see "horn" speaker manufacturers mostly resort to DR subs to augment the horns in the frequency range above, seeing how it usually diminishes the coherency, sheer quality and dynamics of the sound. As horn proponents I'd urge to let size be size, and physics have their say; are we audiophiles or not? :)
I've heard dozens of horn systems.  Of the complete systems, I like: the Edgarhorn systems I've heard; some of the Volti systems I've heard were okay, but not that great for my taste; Klipschorn and Lascala not my favorites; Altec Voice of the Theater not my favorites; Goto-good, but big and expensive); and a few more that I can't remember who built them. 

Back-loaded horn systems include: Beauhorn, Rethm, Charney, and a few others.

Mostly, I've heard custom systems built around Western Electric, International Projector Company, Yoshimura Laboratories, and Jensen --drivers and horns.  I've heard systems that use new drivers from G.I.P (Japan) that are replicas of old Western Electric drivers that sound terrific (they ought to, given the prices of these drivers).

My own system is built around a horn-based system from Strumenti Acustici de Precisione (twin 12" Alnico magnet woofers in an Onken cabinet, compression driver and horn midrange (I swapped out what came with the system and replaced the midrange with a Western Electric 713b driver and a 12025 sectoral horn), and a bullet tweeter.  
Apparently the XD series has solved a lot of bass integration issues... you guys know anything about that 
https://www.facebook.com/groups/614272918584739/   Doing more designing collecting modifying and restorations not manufactering product anymore so on FB and social media. I owned 2 pairs of AG horns built about a doz bass systems for trio owners. AG are OK horns but integration with bass is a issue but its also a issue for many horns since midbass on down is usually compromised in size or not  horn loaded. If mid bass and bass are proper horns they yield some of the best mid bass and bass availble but as I mentioned above its were product gets compromised  DIY types are free to build proper sized but they are not easily availble maybe this is part of the issue hardly anyone has heard or owned full range all horn loaded systems and they take knowledge and  sometimes real physical work to set up. And face it most just want to easily buy just open box and plug in. But with many things in life sometimes whats easy and convenient is not whats best.

Hi bdp24

I engineered sound for Diane Bish for 3 amazing years on the Ruffatti. Glorious!

mg

Not to mention the 16Hz tone of the lowest pipe organ pedal! Some of the other lower pedals also create sub-40Hz tones, as does, as wolf said, the far left end of the grand piano keyboard. Recordings made in large venues (cathedrals, churches, large theaters) often contain sub-40Hz room sound.
Except music with a 5 string bass at 31hz for the low B, percussion overtones, pianos, the ambient sound around live orchestras, life...etc....


The bass was AWOL at 40Hz; a fact I couldn’t live with.
Bass may have been AWOL below 40Hz, but are your Focals really better in this regard, or is it just their exaggerated upper bass you’re mistaking for bass depth?

The Focals are about 5db down at 40Hz, and a very steep roll off below 50Hz:
https://www.stereophile.com/content/focal-aria-936-loudspeaker-measurements

Exaggerated bass is very common among modern tower speakers - becoming something of the norm. Many, even "pro" reviewers, mistake this for bass depth because they’re not in tune with what the two lowest octaves really sound/feel like. A lot of music has very little if any content below 40Hz. I bet those LaScalas were barely putting out anything useful below 50Hz.
Larryi1,

can you divulge which other horn systems you have heard please? 

johnK-

do you still have a website? can you please provide the link?



d2girls,

I like a lot of things about Avantgarde systems.  They are, like most good horn systems, very dynamic and sound quite good at lower volume levels.  They also don't have as much problems with nasal coloration or other types of tonal coloration associated with some horn systems. 

But, they have varying degrees of problems with integration between the horn and the bass modules; the two parts sound different.  Also, with some of their systems, the bass has a bit of a "one-note" quality.  Still, on balance, I like the systems I've heard.


This is a great Interview. An audiophile and a drummer.
He likes horns when it comes to reproducing drums. 
https://www.youtube.com/watch?v=7RxRTFx6Cd0

I listened to the LaScala's at CAF.  On the day in that room their spectral balance seemed a little tipped up to me, and overall they didn't sound quite as warm as I, personally, like in a sonic presentation.  I gather there are a number of professional and DIY after-market mods that can have quite an impact on this, though.
I liked them. I can see why people are fanatical about them. They were exciting and fun to listen to. Granted I have tweaked a room and tuned an amp specifically for my speakers, but my modest Focals truly outclassed the LaScala in terms of imaging and bass when I went home and listened. I can imagine a better room getting better imaging out of the Klipsch, but that's not what I heard that day. I liked what I heard and I respect it, but I didn't walk away with any regret for buying what I did. I can see how others might. 
Who has room for La Scalas? (Rhetorical question for which I prefer there not be answers proffered...thanks) However, they do seem to be a bargain at 4 grand, and based on my recent success (a pleasant surprise) with Heresy IIIs I can only imagine (which will have to do as none of the nearby Audio Salons have them for audition) they sound splendid indeed. But how far away from them do you need to be? Near the butler pantry? Do you have to move the vintage globe collection? The Milton busts? (plural) Heresy IIIs need subs (I have 2) but otherwise there's yer Klipschy Taste of Tasty Horn fun right there for relatively small funds, and mine are 9 feet from my fat head.

I am glad you were able to listen to La Scala IIs and really do appreciate your objectivity.  True bass response is excellent until it exits stage left, and right.  As mentioned on the used market, stock and modded, they are performance bargains.


Bill

kosst, glad you heard them. Lascalas used, with mods, tweaks and updates, are much less than 8K. Enjoy ! MrD.
There was a nice smattering of large horn speakers at CAF this year.

After seeing and hearing the La Scala IIIs there I was left to wonder why anyone would need to invest in others from smaller companies costing a fair bit more. I would love a pair of those in my house. Of course as always, different strokes.....

In the last few months Ive had the opportunity to audition current model Heresy, Forte, and La Scala as well as Cornwall II.   All very very nice!   
K horns are availble used  $2500 up. Altec a7 $800 and up EV has full horn options under a $1000. Most of these are a good step up from LaScala. The low used price allows room for well thought out upgrades. If ones in the know world class horns can be built under $3k. Or go on craigs they exist all over the USA.
Alrighty, folks! The ultimate horn skeptic has sat down and listened to a fully horn loaded system in the form of Klipsch LaScala II. 

I'll start with the cons and finish with the pros.

The imaging wasn't up to the standard of my Focal. I'm willing to chalk some of that up to the room, though I feel that the room was about as dead as my room at home. Specifically, the soundstage was strictly limited to the space between the speakers. The sound was more forward, but certainly not attacking my face or anything. The bass was AWOL at 40Hz; a fact I couldn't live with. 

The soundstage between the speakers was very good. I relent from using "excellent" only because the scale of depth didn't beat my Focal. The dynamics were first class, definitely besting my Focal, but not by a wide margin. The bass was great before it went on vacation. 

In conclusion, I'd have to do a lot more listening before I decided if such physical dynamics are something I'd want to live with. I can imagine them being fatiguing, especially with certain albums I like, but I can appreciate the thrill of such an aggressive character. The lack of bass is a total non-starter though. 

I liked them. I would sit and listen to them for hours to better understand them and how I heard them. But at their price point, $8,000, I feel like I'm get 90-95% of the dynamics, better soundstage, and more deep bass for half the price in my Focal. I can conceive of better placement and room treatment tipping the balance, but I didn't hear that. 

So there. Nobody can call me dishonest. I think most would call LaScala II great examples of a fully horn loaded system. I listened. I liked them a lot. Probably not speakers I'd buy though. 
I have a pair of Bob Crites Cornscala’s with DeanG crossovers and they are amazing. They do a lot of things really well with exceptional detail and midrange. Very revealing speakers. YMMV
Over seven decades, I've owned both horn and direct radiating speakers.  The way each presents its sound is akin to what I experienced in Vienna several years ago. I was fortunate to hear the VPO play in both the Staatsoper and the Musikverein.  Same orchestra - - but playing in two clearly differing sonic venues.  
IMO, the playing in the Staatsoper was akin to direct radiation/cone speakers, while the playing in the Musikverein was more "in your face" like I had experienced with my horns. 
I enjoyed them both, although  each presented the music as different audible (and emotional) experiences. I guess it's a choice as to which approach you prefer as a constant diet over the weeks, months and years. 
I listened to horn speakers for the first time recently, Trenner & Friedl RAs powered by Shindo. It's either my first or second favorite setup I've ever heard, and I've heard all the big brands. 
@kosst

Sadly, you would have to visit Buckingham Palace (well not the actual palace, but quite close,lol)  to listen to the H1's.
Or in the vicinity of Norad to listen to a pair of Oris horns.
Both to my ears are very good. 
Enjoy your music!

My vintage Speaker Lab 7's are a 4 driver speaker. Woofer, upper-bass woofer, wide mid-horn, horn tweeter. Horns are plastic and well-damped! Bought them cheap ($100) from Habitat - needed some large floorstanders for interim use. Boy, was I surprised at the high quality of SQ that the 7's produce! No harshness or horn "bite" - just smooth, enjoyable sound! Used with Bryston .5 pre/3B amp. Dynamic range is A+. 
Contact Jeffrey Jackson if you want to hear world class horns. But his systems typically cost well over $100k. 
@gawdbless 
I'm very open to hearing whatever I can. I think I extended the offer to go listen to anybody's system within a few hours of me. So far no PM's to that effect. I'm in Toledo and I drive to northern Michigan a couple times a month. 
@kosst,

I have a pair of Impulse H1 horns that would probably change your thinking regarding horn speakers.
Anyone who things horns sound “colored” or lack imaging, or intimacy hasn’t heard a good horn system, period. 
First of all, most horn systems are not time aligned. This is bad for all of the above issues.
My system is fully time aligned, and features the world’s best midrange, the RCA1443 field coil driver. 
It scales beautifully: Norah Jones is in front of me singing one minute, then the next a massive orchestra is playing. (not sure how to post a photo?)

No ‘cone’ woofer speaker will ever match the speed, realism, and scale that a well designed horn system can muster. The problem is that these are rare. Wheel Fi made great systems, but I don’t think they’re around anymore. Try them. 
Oswalds Mill is a joke. Their horns sound good, but the owner is a complete idiot. But that’s another story!
I was questioning my tweeter's condition after my daughter wrecklessly cranked the volume and damaged a midrange so I decided to order Crites titanium diaphrams.   They are excellent !!!    Even better was Bob's customer service.  Unbelievable level of passion for speakers and his customers.   Crites Speakers has another loyal customer .  
I lost a midrange driver in my Heresy.....  I could not believe how easy it was to replace the diaphram......   thanks PWK.....
@kosst --

Going by your experience and the venues in which you’ve predominantly(?) heard "horn" speakers (again, most of them have likely been hybrids; not that this is necessarily a bad thing sonically, but it waters down the model of definition here), and being that this is mostly the pro-arena (i.e.: cinema speakers which uses mostly horn hybrids are usually not the worst representatives of "horn" sound, I find, but bear in mind they’re sometimes driven upwards of their limits), I’d say you may be in for a pleasant surprise with a pair of well-implemented, quality all-horn or horn hybrid speakers in a domestic environment. "honky, distorted sound" is nothing at all like what a pair of quality horn speakers will bring to the day, certainly not least when played at more moderate levels in a home, but if a sound that deviates from many if not most direct radiating smaller speakers by virtue of simply offering up a larger, more effortless, present and enveloping presentation, and that these traits are for some reason not to your liking, then I guess our case here must finally come to rest. However, I’m thinking you may be mixing up sonically detrimental artifacts from your overall pro-arena horn sound experience - where many aspects "come into play" to negatively affect the sound quality - with what are truly assets in quality horn sound reproduction in carefully implemented home setups. As for JBL, I’ve come to find their current 44-range, K2’s and Everest iterations to be overpriced, and I can tell you there are indeed much better (all-)horn speakers out there, and for less money - certainly going by my inkling for good sound.

I’m hoping you’ll some day be treated with a good demo of horn speakers in a home setting (let us know if an audition at poster @mrdecibel will eventually be arranged, and what you’ll come to find of it). I’d be glad to demo my own setup for you, but I reside in Europe (Scandinavia) and may not be the most obvious candidate.

To the wider audience...
Nope, I haven't heard any really great home horn systems. I have heard hundreds of big, honky horns in bars, clubs, theaters, and arenas though. JBL are some of the worst I've ever heard. JBL horns are what Pine Knob has installed in their amphitheatre and they absolutely suck. The honky, distorted sound from them was the first thing my friend commented on and he knows pretty much nothing about audio to color his opinion. The least horn sounding horns I've ever heard have been Nexo arrays. The thing I truly hate about horns is how they feel like their bearing right down on you. I don't hear music that sounds massive. I hear a speaker that sounds massive. Maybe I'm just hypersensitive to that characteristic horn sound, but it's as distracting to my ears as vinyl hiss which is why I'll never bother owning a turntable. 
@mrdecibel 
I try to get down there once or twice a year. I doubt I'll have a chance until the holidays, but I'll be down eventually. I'll message you then. 
I sit here and read this thread while I'm listening to my klipschorns and I just have to laugh............

Oz