henry4841

Not many speakers could survive that test and and still function. Kids can tear up an anvil.

Have not heard from you in awhile and I am glad you are still enjoying your Maynard designed little amplifier. With our speakers it can hold it's own against most any amplifier. At least in my opinion for whatever it is worth. My son was impressed when first hearing it on my LaScala's.

That old speaker could tell some tales I bet. Appears to have been used as a pro speaker for someone that traveled a lot.

Absolutely. I remember a fellow member here who was also a reviewer for some publications, forget which ones, that reviewed a 1 watt amplifier on his K-horns and claimed they sound the best he had ever heard them.

What you are not taking into account is the autotransformer which has inductance in your equation. I had much the same thoughts as you when I saw a 2.5mh inductor in the A and AA crossover networks. PWK knew what he was doing when he used a 2.5mh inductor.

If I understand you correctly you are reversing the polarity of the mid drivers on the crossovers. Much the same was done on the AL crossover from the factory. Proof is in the pudding. If it sounds better like you have it let it be.

Tubes or SS makes no difference in cap life if they were rated properly to begin with. Life expectancy is in a capacitor spec sheet. In a 20 year old piece of electronics it would sure not hurt to replace the caps but then they could very well last another decade before giving a problem. The caps that are subjected to the extreme high voltage is in the power supply section. They are the most likely cause of hum when they get tired. Again it depends on the quality of the capacitor, it's rating and not so much on whether tube or SS. One thing for sure those high voltage caps are more expensive.

" The caps can be ceramic disk of film type" Was not aware such existed. Learn something new everyday. Unless a circuit is very critical I have no problem with a polyester cap even replacing a polypropylene. Dielectric absorption is better with a polypropylene but in most circuits it does not matter.

Make a inappropriate personal attack on a member and and you will get a warning if not a time out. Same should hold for PWK is the way I see it. Someone allowed to post as previously done usually will not get better but worse. Not the place or time for comments of such on a Klipsch forum. Another comment from a fictional Hollywood production called Andy Griffin was Barney's, "Nip it in the bud." Warning is appropriate IMHO. There are plenty of other sites to freely express his opinions where they are more appropriate. That one post about PWK, who was and is still a giant in audio reproduction, was totally unacceptable on this site. I thought at first he was interested in learning about how the LaScala came into being and why it has endured for decades and is still very popular among serious audiophiles. Convinced now he is, perhaps was, just a troll.

Not exactly what I would call trying to make friends.

Stereophile's review on low bass. "The La Scala is not without flaws, or more precisely, limitations. Surprising for a speaker of such ample proportions, it doesn't do really deep bass; its 15" woofer rolls off steeply at around 50Hz. Roy Delgado, Klipsch's chief audio engineer, told me that this is a result of a compromise that allowed Paul Klipsch to design a relatively compact bass horn. (The Cornwall, a smaller and less expensive sibling in Klipsch's Heritage line, dispenses with the bass horn and goes down to 35Hz.) Whether this deficit might be a problem for you depends on your musical diet and priorities. While I noticed bass missing on certain electronic music and hip hop recordings, I rarely missed it; some La Scala owners, though, use a subwoofer. I should add that, despite being limited, the Klipsches' bass is in no way wimpy: When called upon, the big horns emitted bass notes as stentorian and downright scary as any speakers I've lived with."

I honestly did not mean any offense on anything I posted. When young I was much as yourself trusting in published specs as to what you will hear. PWK could not say it enough that music is dynamics with frequency response important but not the tell all. Horns are efficient, low distortion, dynamic ways to reproduce sound. Nothing can match a horn system. For really low bass the folded K-horn is the speaker of reasonable choice. I have heard of really serious audiophiles building a room with a 32ft bass horn built out of concrete and steel. The problem with the K-horn is that it is perfect if the room is suited for it. Horns uses what is called compression drivers for reproduction. Mostly associated with pro equipment and not home sound reproduction. PWK used professional drivers for his Heritage line and made a compression driver out of the 15" cone bass speaker. The speaker is put in a very small chamber with a board in front of the speaker with a slot to limit the travel of the 15" cone in effect making a compression driver out of the cone speaker. The gain is produced by the attached horn. Being a bass horn has to be extremely long and large he folded the horn and used the walls of the room for further amplification of the sound wave. With a proper large enough room using K-horns and a center speaker as suggested by Paul the sound will be like most have never heard. The LaScala is a compromise cutting one fold out of the equation with part of a db loss if not a whole db of bass notes loss but is suited for more rooms and is still horn loaded bass with the bass it does make. This is not to say it does not make great bass below 100hz, just not go very much below 50hz. When I bought my speaker very few LP's had much below 50hz recorded on them anyways so it made little difference to me to sacrifice a db or so of the low notes. For a couple of decades I did not feel I was missing anything. What I had for more than 30 years was a level of sound reproduction many never hear. I mentioned I paid $1500 or possible $1595 for my speakers in '86 and that was a lot of money for a blue collar worker with a family of 6 to support. But it was worth it to me. A pair of new LaScala's is a serious investment in sound for most but they were the last main speaker system I have ever bought. Always dreamed of owning K-horns but realized I do not have the space or proper room for them to sound their best. Now with the cost of really good subs and lots of cheap class D power to drive them reasonably priced I am not missing anything. What carewser is missing is a LaScala is an ultimate speaker system for most for a lifetime of sound enjoyment that most will pass on to their heir's after they are gone. Certainly benefit from a really good sub for those low bass note lovers. I personally listen to mine without using my sub a lot of the time. Plenty of the best bass one will ever hear and you can do that with a few watt single ended triode amplifier such as the amazing SET 300B amp. Not many speakers can say that. I know you are a skeptic carewser and you will never fully understand what members here are talking about until you live with a pair of LaScala's and hear what we are trying to convey into words. Impossible really to put into words what we are hearing from a pair of LaScala's. I have no desire to listen to the newer LaScala's loving the sound my old speakers produce. Klipsch claims improvements which I do not doubt but like carewser I could not afford them being old and retired on a fixed income anyways. What you do hear from top reviewers Klipsch sends to them to is when it is time to send them back most all say "I am sure going to miss those speakers." That is the ones that do not pay and keep them! And this is from people that have heard and reviewed many of the top speakers currently being produced. Shame these day there are not places one can go and audition a pair of LaScala's as it was in my days when I purchased mine. I am still in awe remembering the first time I heard a pair in a showroom with a tube amplifier. It was if the singer was right in front of me live with music filling the large listening room with instruments everywhere. Never regretted purchasing mine. Peace and love.

Check with this fellow member and Aussie. Bet he can help find what you want to know. https://community.klipsch.com/index.php?/profile/57741-full-range/

It's a classic as are all old Fisher amps. I like the looks and sound of the early 70's Fisher receivers a lot. Look good, sound good and can still be bought at reasonable prices.

Life is good. Love my LaScala's. 😃

Paid $1500 for mine new in '86. Prices for '86 LaScala's are much more than that now. You must have misunderstood. You have a lot of comments on speakers you have admittedly never heard. If I had PWK's badge I would flash it at you being you do not know when to take a hint and just move on. I doubt anyone wants to hear more on what you have to say about LaScala's. Sorry if you are offended but enough is enough. Dig into specs and see if you can find a pair of speakers that suit you, on paper that is. https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2334524.m570.l1313&_nkw=klipsch+Lascala+&_sacat=0&LH_TitleDesc=0&_odkw=klipsch+la+scala+speakers&_osacat=0

Yes, go for it. Overkill in power but will work great using only a couple of watts with those Heresy's. If you do not believe only a couple of watts you can easily check the watts used yourself with only an AC voltmeter, cheap multimeter.

Those early class D amps sound kinda thin to me, missing something. The newer ones sound fine. Try a cheap Chinese TPA3255 amp board with a Meanwell switching PS and you will hear what a better class D board sounds like for not a lot of bread. Around $200. I like the concept Schiit uses, quality products reasonable priced.

This discussion was discussed back in the 70's when I first got involved with audio reproduction. Dynamics and low distortion was the K-horn and LaScala high points, not frequency response. If memory is still correct the frequency response of the K-horn of the 70's was something like 35hz -18K + - 5db which is not great for someone only listening to numbers. A 10db swing is a lot but PWK sold everyone he ever made period. For a good reason. One has to experience the sound to fully understand that frequency response is not the main selling point of the Heritage line. Carewser puts a lot of emphasis on the bass response, particularly the very low notes so perhaps the Heritage line is not for him and let's us members respect his concern. That being said no bass sounds like a horn loaded bass even if one has to buy a sub for those really low numbers. Listen young guys, speaker specifications only tell part of the story. Specs for a designer is only a tool and not the final answer on how the speaker, amplifier will sound. Do not let published specs fool you into buying an inferior speaker. I was once a number guy myself buying a pair of AR-3a's because of their excellent numbers. I was young and wanted to rock and that speaker was not a rock speaker. No dynamics, polite speaker. Lot's sold and many happy purchasers but not me. Your ears are the best tool you have and unfortunately there are very few places these days where one can listen to high end speakers before purchasing as in yesterday. Music lives in the mids and not the lows or highs as PWK is noted for saying and I am a believer. If the vocals and mids are not excellent one will never be satisfied no matter how great a bass it makes. True audiophiles that is. Carewser is firm on what he wants from a speaker so lets just move on and welcome him and his opinions on the forum even if we know, think we know better from experience. I want quick sharp bass attacks, lovely vocals from a big mid horn and sparkling highs and my LaScala's deliver. Expensive, for me, in '86 but all in all a really good investment in sound. Worth lots more than what I paid back then. How many other speakers brands can say that. Consider, if young, a K-horn or LaScala as a long term investment much as blue chip stock.

Lot's of LaScala's made and there are still deals on them if one is patient.

I am using a Shiit modi as well. Good enough for me, I run with the small dogs. I was not familiar with the Fisher and did not know if SS or tube. Early SS receiver I found out. Nice

For as long as K-horn has been around there is always going to be some jerk saying something negative about them. Nature of people. I have not watched the review in question feeling it is not worth wasting my time. Best speaker I have heard when one could go to an audio store and directly compare them to every other speaker they sold. Recently interested in one of those mattress' in a box at Amazon and noticed one very popular one that someone had started rumors of bed bugs in the mattress when received new. Seriously doubt it to be true for many reasons but certainly gives buyers some concern hurting sales. Competitor more than likely post the review and then the rumors started from there.

The problem is there are very few repair technicians these days. Most products these days are throw away when the fail. I know of a few I would trust but they are not cheap. Shipping alone gets expensive fast.

Exactly what I have found after playing with amplifier circuits for years. But nowadays all the main stream amps will sound good but in subtle different ways. No perfect amplifier for everyone. The reason I at the present time have at last count 24 working amps minus the Sweetie I just gave my son last week. I venture to say, depending on how much one pays, there are no terrible sounding amps anymore. All the name brands will sound decent with our speakers. Picky people, like I once was, will prefer one over the other. As I previously said the biggest difference in sound I can instantly notice is between PP vs SE amplifiers. We are getting away from the topic of this thread, most long threads do. I would recommend anyone to put some hours on your new gear before seriously auditioning them. That is what some of the better reviewers do before writing their review. After 48 or more hours start listening more carefully to evaluate your new purchase and not before then. Experts say it does take time to settle in. It would take very expensive lab test equipment, a lab signal generator can cost thousands by itself, and hours of research to substantiate what the audio engineers say they have found. What value is it to use a hobby type signal generator or any other test equipment hobbyist buy whose distortion numbers are too high for serious audio work as one member has suggested. Obvious they are not an electronic geek and know little of what kind of test equipment is required to do the test they must see to believe it true. Why bother, one has to trust someone unless you have deep enough pockets to buy needed equipment and the electronic background to do the test themselves. I will listen to Nelson and Wayne as well as others that say their product will improve with hours on them. Could be they are lying but I cannot think of any reason they should.

Interesting. Look forward to our members reviews, thoughts, pros and cons. The 12" looks good for cost vs low sound. On paper looks good.