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To avoid confusion, it’s good to use standard terms, so we’re all on the same page. Every speaker is made of one or more drivers. There are cone drivers, dome drivers, compression drivers, electrostatic drivers, and so on. When you put a driver in a cabinet, or attach a compression driver to a horn, and add a crossover, or balancing network, as Klipsch used to call them, then you have a loudspeaker system. In the La Scala, placing a relatively narrow slot in front of the 15” cone driver allows it to mimic a compression driver. The slot does not restrict the woofer, it increases the speed of the air being moved by the cone of the driver. Then, placing a horn in front of that slot allows the high-speed air to slow down, and move a larger amount of air, with the net result that it’s easier to move the air in the room. The number of bends in the horn is irrelevant. The length of the horn is what matters when it comes to low bass extension. The Klipschorn was a breakthrough when it came out, because it folded a fairly long horn into a manageable package, then used the walls of the room as extensions of the horn, allowing for deep bass without needing much amplifier power or floorspace. This was a new concept in 1946, when Paul Klipsch invented it. Later, in 1963, he wanted a “portable” size speaker for touring PA service, so he came up with the La Scala. It’s smaller than the Khorn, sort of, and does not need to be in a corner like the Khorn does. As well, for PA use, deep bass wasn’t needed. This is why many La Scala owners add a subwoofer or two in order to get the deep bass required to hear most music in the most realistic way. The La Scala’s limited deep bass is due to the relatively short length of its bass horn, barely 3 feet, compared with the 8-foot-long horn on the Khorn. Getting deep bass with a horn-loaded speaker requires such a long horn that most manufacturers of horn-loaded speaker systems go with a separate direct-firing subwoofer, except for Avantgarde Acoustics speakers, whose optional horn-loaded subwoofer is really enormous. One of PWK’s sayings was, “If it moves, it distorts.”, so he designed his speakers to produce full volume with only 1/16” excursion, which reduces distortion to a fraction of that produced by nearly all other speakers. So how does a horn work? One explanation is that it lets the small diaphragm of the compression driver, or the larger cone of the Klipsch woofers, act like they are much larger, the size of the opening of the horn, in fact, which is pretty big. I like to compare horn-loading a speaker to putting swim fins on a swimmer. With bare feet, a swimmer’s feet get very little grip on the water, so he kicks hard and uses lots of energy, but doesn’t go very fast. However, if he puts on some fins, now his feet get a good grip on the water, and he can go much faster, with a fraction of the effort. In the same way, a horn lets the driver (cone or compression type) get a much better “grip” on the air in the room, so that it can produce much louder sounds with a fraction of the diaphragm or cone movement, and a fraction of the amplifier power needed by a conventional direct-firing speaker. Why was efficiency so important to PWK? For two reasons: first, he wanted to be able to hear a symphony orchestra, with as many as a hundred instruments, sound just as loud through his speaker (music was mono back then, so he only needed one speaker) as if he were sitting in the front row of the concert hall, with only 5 watts of amplifier power! Second, he wanted the music to sound as realistic as possible, so the distortion level had to be much lower than that produced by nearly all other speakers, so he needed to have very minimal driver excursion. The horn made both requirements possible. Also, the speaker had to fit inside a typical living room, which seemed like an impossible set of requirements, but it all came together with the Klipschorn, which has been in continuous production for 74 years! Paul got it right the first time, but he kept on making improvements, and other Heritage Series speakers, until he died in 2002 at the age of 98. ’Nuff said!

Felt a little bit nostalgic today and I’m now giving an old favourite album a spin Artist - The Moody Blues Title - A Question Of Balance Album ID - https://www.discogs.com/release/3032878-The-Moody-Blues-A-Question-Of-Balance

i don't think it matters if they will fit in the back of a jeep because i'm going to use R+L trucking for their trip to cincy 🤑

I see your point, in that case come for all or part of the event and just take them with you. We will even take them to your hotel room, hook them up, and come back in the morning and box them and load them in the R + L Trucking truck for you. We will even bring the driver a fresh cup of hot coffee for the road (cream and sugar is extra, and we don't do latte, soy or almond milk creamer, you have to draw the line somewhere).

Not in a creepy way Sorry picture might be large, can't figure out how to make it smaller on phone.

Adding that much boost at 20Hz to a La Scala is not recommended as stated in the owners manual for the electronic subwoofer. As it explains the type of speaker to use the device with needs to handle the amount of excursion and also control it or else the results will at best sound bad and at worst destroy the woofer. You like to experiment then go for it and let us know how you make out. Just make sure you are experimenting at very low levels at first and if things sound off then just stop the experiment. If it sounds like the woofer is still in control and you don't hear any strange noises from the speaker very slowly increase the output level but I still not recommend using it at loud levels as you will risk damage. 20Hz is really getting to where you don't hear it and it's more of a feel thing, push air and shake stuff which requires lots of movement (excursion), so you may not even hear your speakers being damaged until it's too late. Wavelength increases as frequency decreases, I doubt the La Scala will sound good with this device and most likely just become boomy and bloated sounding.

Waves replaced it with a plugin for use in the studio. Adjusted correctly, it can sound ok. It won't get you slam in the gut bass, but you will hear the lower frequencies. It's all in your head, so to speak.

I guess I'm confused. If you have no wish for "more bass", why do you even want to bother with such a device? No amount of EQ is going to make them go lower. You might only increase output where they already go. But you said you don't want "more". I still contend that you have two choices. (Well three if you count the ported box mod). Live with the bass as is. Add subwoofer(s). Oh, and one more I forgot. Dump them and move on. I assume that's not one you would consider.

I just re-coned one of my KD16's with the SS kit, and it is perfect and looks completely stock. I left a review on the SS site as to the directions (as supplied were for a speaker with a voice coil not a passive), but once you figure it out, it works great. Unlike the originals, the SS cones have an "open" end to accommodate the voice coil, and the originals are "closed" with a formed paper peg the size of the hole in the new cone to attached the spider. You have to cut the weight/wax cone end off the old cone and when you assemble the new cone it gets inserted into the new cone and epoxied to the new cone and spider. You need to leave about 1" of old cone above the wax so theres sufficient surface to glue. The whole assembly (old cone end with wax and weights) was 45.27 grams. The whole process removing the old cones/spider, cleaning the basket up, trimming, fitting, and reassembling was easy, and took me about 90 minutes going slow and double checking fit and centering etc. Sounds great and looks perfect. Note that the pic in the cabinet caught funny light, the cone is not bluish, its darker like the first photo. Anybody doing this feel free to contact me for help.

mikld, I just have time for a brief reply right now, but here we go. You can power a La Scala with pretty much whatever you have in the way of amplification, as long as the amplifier is quiet, as hiss that's inaudible with other speakers may be loud enough to be annoying with sensitive speakers like La Scalas, and several other Heritage Series speakers. As for power, as I mentioned in another post, you can drive Scalas with nearly anything, from 5 watts to 500 watts, as long as you don't go crazy with the volume knob. If the speaker starts making funny noises, turn it down! The 5-watt amp could be driven into clipping, which produces waves that are very damaging to drivers, particularly tweeters. The 500-watt amp could overheat the speaker, but if you're in a typical home and not outdoors, the volume will be painfully loud way before you reach maximum power. Horn-loading drivers doesn't put any extra load on the drivers, if that's what you're wondering. Quite the opposite. Maybe "horn-coupled" would be a less misleading term, since the horn couples the driver to the air in the room. A horn is a kind of acoustic amplifier, which means that the driver gets it very easy compared with the driver in a direct-firing speaker. If speakers were bicycles, adding horns would make it seem like you're riding downhill most of the time, and the uphills would not be very hilly. Hope this is helpful.

Hi all, yes still in CT, although HI Fi Stereo house is long gone. I do still have a bunch of equipment from them - we were able to buy trade ins on the cheap! I did the passive cone replacement (from Simply Speakers) this weekend, pretty easy job and looks exactly as the original did. Sounds as it should also. I weighed the weights in there as I had read some people were asking what they were, for anybody who finds this post, with the cone end, and wax/weights intact, they weighed 45.27 grams. I figured the cone and wax to weigh about a gram or so, safe to say the weights were ~ 44 grams.

Shred? EVH only as he did it! Great watch!

Well it looks like these will be heading to a new Klipsch home. Pending passing the audition (they will) and then loading these beasts, they are off the market.

It is entirely your business about the subs or not. Not sure about why you are discussing it here on subwoofer thread. You cannot win! Convinced myself, I seek not to convince. Enjoy your system...

You're saying the lower octaves of bass aren't important to you? I couldn't imagine living with less bass than a pair of Cornwall IVs with no sub. I enjoyed CW IVs for months with no subs, but now that I've added even a cheap pair of big box store subs, I'd have a hard time going back. You don't realize what you're missing until you hear it yourself in your system. Truly an "ignorance is bliss" scenario haha. You owe it to yourself to get a couple subs on your La Scalas. Even a pair of the aforementioned Klipsch SPL 12" subs would add MUCH to your enjoyment.

after seeing this ad from a dealer about a little tiny speaker, probably not as good as the RP-600M at 1/8th the price!!! Yes I have a pair for my computer speakers. A three-way, coaxial mid-tweeter passive speaker with a 7" woofer (from France): $4,400 plus tax!

Imperial March

I think it's 2 singles. Photos show the same serial # on both lots.

Trey will probably tell you the caps are fine Sent from my iPhone using Tapatalk

Thank you sir. That's the kind of information I was after. And I agree completely with your assessments.

10 drunk guys are going to call you up from one speaker phone and say, "you are the winner Dude." One will say, hey I live out your way, if you want I can take them to my place and put them in my living room until you come and get 'em." What you do from that point is entirely at your own risk. What I am going to try to do, with the help of our IT expert @seti, is live Stream it on Zoom, or something, so you can watch it live. They are supposed to be installing fiber optic to the Feild House right now, so it will depend on some things. If that turns out to be a viable option, we will post a Zoom or other type link in here. In addition, we ( @Travis In Austin @bhendrix and TN Mike) will email and call (if we have your number) the winner shortly after the drawing, and also put a notification on here, and all of the other social media platforms it will be on.

Nothing "bad" going on here. It's all Bullshit! But it's GOOD bullshit!!

I don't have one to hook up and answer your question. Can you plug yours in and let us know?

Yeah no doubt. I had done some surrounds before, and this was a little more involved but just as easy. Here's a pic of the "weight cone" (under the dust cap) intact before I did final trimming and worked it into a perfect circle. The second photo is the backside that attaches to the spider, you can see the remnants of the old spider I hadn't cleaned off yet (sandpaper worked well). It's all hidden under the dust cap, but I figured the more balanced it was and symmetrical, the better the weight distribution remained neutral. I weighed the "extra" cone material in the same square inches from old cone material, it weighted less than 1.25 grams, so that plus the weight of the epoxy makes it slightly heavier than original, but I can't believe that will make any difference sonically based on ~ 45 grams of weigh total.

No. They go down so far and that’s it. Sent from my iPhone using Tapatalk

It is open to EVERYONE. But there is a catch. We will not ship these, so you, or anyone else, where ever they may be, will have 90 days to come and pick them up or have someone they authorize (brother, sister, child, friend) pick them up. Now of course I bet there are at least 100 people here that would be happy to pick these up for you and "store" them in their living room for you until you can make arrangements.

Great deal (and great parts) considering they'd cost you over $800 now from Crites I seen the posting when it first came up and had to talk myself out of buying these as I already have an extra set sitting on the shelf.

if i want yo buy tickets i have to fill in an USA adress, is it right that the drawing is olny for USA citizens?

Pending sale to Captain

Wow, at that price put me in the Queue! Even with shipping that would be very reasonable. Unfortunately, I can't cross cut a 2X4 straight. Lol.

Maybe!

There are times I hate youtube! Grrrrrrr... It's Monday soooo there's that! Ugh! Had that perfect song in mind too. hahahaha

Knoxville has changed since the last time I was there 😀

SOLD!

The "damn thing" doe NOT have a 15" Sub. It's a woofer driver, not a Subwoofer driver. The short horn is a 104 Hz. horn, which creates a +8db Acoustic Air Transformer with narrow bandwidth being traded for the boost. All horns are narrow band devices. That's the trade you make to get higher sensitivity, higher output, and lower distortion. This is why modern horn systems are either 4 -way or in the case of the Jubilee, a 2-way with lots of Digital EQ. Harkens a bit to the old Bose 901, where, without the bass and treble boost to make it work, you had bunch of midrange drivers with severe rolloff at both ends. PWK used it as the best example of Gross Intermodulation Distortion, which does not occur in big horns with big drivers designed specifically to drive a horn.

When someone builds me a Tuba sub, I'll sell what I bought and replace it with one. I can make a single work. Since no one wants to build me one for a reasonable price and I am not going to build it myself, I'll stick with me new purchase instead.

Think of buying efficient horns as saving the planet in many forms.

No it's not horn loaded, yes they will sound incredible as a pair.

I use the last 18 years the combination C22CE with MC275. For me an absolute all-rounder, there are no desires open, very subtle at low volumes as Klipsch speaker they need, my Lascala, and at the same time powerful and authoritative on various speakers, even those around 86 dB sensitivity when the impedance is light. So I can recommend Mcintosh. But now comes the second part of this post. Because I reactivate my jubilees I wanted to have two equal amplifiers and I remembered an amp that I already had 34 years ago. A Quad 306. so i first bought only one amp on ebay. What can I say, I am absolutely thrilled. The secret of the Quad is the current dumping principle. Even at very low volumes, the power amp sounds as good as a tube, even the comparison with the MC275 is not completely exaggerated, on the one hand British and discreet, on the other powerful and very amazing spatial. At a used price of 330€ including shipping within the EU. The Queens Award-winning principle (the highest award in the UK for technical innovation, and the only one ever given to an audio device) is based on the fact that a very small but very high quality Class A amplifier determines the sound, without crossover distortion, and the power transistors function only as current „dumpers“. Quasi a powerful Class A power amplifier with the use and the longevity and the low and volume adapted power consumption of Class B. Very good also just on horn speakers. Quad was very often combined with Tannoy in the UK. And for those who don't know the brand, Quad amps played in every BBC studio. So I also bought a Quad 34 pre amp for the fun of it, and I could discover two impressions. First, I never heard in the past the power amp with something else than the 34 pre amp. That was a mistake. The 306 on its own combined with a high resolution pre amp is awesome plus it is one of the most noise free sand amps I know about which is very important when you drive such high sensitive speakers like a Cornwall. A warning note, the Quad 306 has a "modern" low input impedance, as does my second Mcintosh amp, an MC2102, namely only 20 kohms. That is why I can not run the Quad with my C22CE pre, the bass would be too thin. But with my E.A.R. 864 pre, which has output transformers! as impedance converter it goes very well. The impression of the Quad 34 pre for the first time after 30 years: Not so tangy, not the most transparent pre, but one of the most musical I have ever known. And the best...simply a completely fatigue-free long-term fascination. I have become older wiser and more mature, I no longer run after the last ounce of resolution, I like fatigue-free pleasant music. One word if the Quad 306 power amp would be a serious alternative, you can internally adjust the input sensitivity very easily by swapping R1,R2 and C1....from 0.35 V now to 1.25 V for example. Anyone who has heard this small Quad 306 with 50 watts at 8 ohm will be amazed, no exaggeration! And a real all-rounder. Another benefit: there are no trimpotis or other adjustment needs, you do not have to match power transistors, it only needs four new PSU electrolytic capacitors after 35 years. This units are really small and neat looking in my view.

The 1502? Best sub Klipsch never made

Top panel is made for matching 80cm birch midhorns. These can now be positioned at any angle without sticking out. Woofer: K33E Mid: JBL 2445J High: JBL 2404 ( not in picture yet) Active filtered, Classé fifteen for bass and class A monoblocks for mid and highs. Impressive in terms of scale, dynamics and plays effordless at any volume. Even the wife is very happy.😁

recently added davea's wonderful smahls and de-120 tweeters. providing much more articulate highs than the k-77 alnicos that were there. the icing on the cake, though, is my new luxman sq-n150 integrated -- 10w of el84 goodness! sound is wonderful -- instruments sound remarkably natural, soundstage is much more nuanced (i.e. deeper), and remarkably, the bass is phenomenal. i've been considering going down the super heresy route, but the bass now is making me reconsider.

I agree.....and I've been saying for years now that all speakers benefit from a sub that is properly integrated. Period. If it's not dialed in right, it's a mess and so many people trash the use of subwoofers for this reason. A decent sub properly integrated can sound good. A very good sub properly integrated can take your system to another level. Sent from my SM-G991U using Tapatalk

Been saying for YEARS now, that ALL speakers need subs. Unless, of course, they have subs built into the box, like many non Klipsch Designs, except for the new Jubilee, of course.

I am not sure where your numbers are coming from, but I have no interest in debating them. However maybe I can give some perspective. In my youth, "car guys" when asked about their car (their pride and joy) would respond with the simple phrase "built not bought". It was said with pride. That sort of pride and passion still carries weight with a segment of the population. I know I am a dinosaur, but until one can embrace notion of "built not bought", you will not understand why some head down that path. Just my 2 cents, -Tom PS: I hope that Alfredo and others like him will pursue that passion.

Here is mine, La Scala AL5’s LCR, Fortee IV’s surround, RS-62 II surround back, RB-61 II front height, and 2 rhythmic 15” sealed subs.

I had a Node 2i before I upgraded to the Lumin. The Bluos software is very good and intuitive. The internal DAC of the Node is pretty decent and would compete with a lot of budget cd players or DACs. But it does sound better when using a high quality outboard DAC. The Lumin is a step up in sound quality as compared to the Node when using the same outboard DAC, but it is about 3 1/2 times the cost. Shakey

Long time lurker, thought I'd post my HT 2.0 inspired by @Youthman's 3 La Scala and movable screen. : ) I was going to build the custom screen but ended up getting an Elite Screen BF deal and made the frame move like what @Diver_Ron at avsforum had. All worked out. The recent update: Sound: 3 La Scala (had RF42ii and RC64 iii), and jumped to 9.1.4 by adding the 2 RP-600m as front wides. Screen: Moved to Elite Screens 120" 16:9 (from 106") and build out the larger screen - so I could fit the La Scalas behind - talk about an excuse for update! Equipment: AVR: Denon x8500H Projector: BenQ: HT3550 Screen: Elite Screens acoustically transparent 1080P3 120" 16:9 LCR: Klipsch La Scala (with Crites 4500 crossover and CT120) Front Wides: Klipsch RP-600m Surrounds (side and rear): Yamaha NW-IW470 Heights (front and rear): Yamaha NS-IW280C Subwoofer: Power Sound Audio (PSA) V1510DF What's next? Perhaps update the surround in walls to 5800... and adding another PSA subwoofer.