henry4841

Me too, we are the lucky ones. You must agree though that research has shown that loud noise damages hearing. I feel a grown person can do as they please as long as it is legal and morally correct. If a grown man, or woman does not want to wear a helmet riding a motorcycle I think it is nobody's business including the government. My head if I want to take the chance but know the hazards of doing so. My feelings exactly about loud music. It's your ears to do with as you choose but be warned young'uns.

If an active crossover is in the works I wonder if it will be analog or digital? In the link is an analog one by Nelson Pass. It is two way so two would be needed for 3 way system. I have not tried building one myself but it has crossed my mind. Retail active crossovers are pricey. Worth glancing over for those that are not familiar with an active crossover and it's advantages. https://firstwatt.com/pdf/art_diy biamp_6-24_ crossover.pdf

Used to feel the same way along with some of my friends but some of them do have hearing loss now since they have gotten older. Just saying is it worth your hearing when you get older?

Recapping is a time vampire.

Looked for the service manual myself with no luck for you and other than a schematic found nothing else. What in particular are you needing a full service manual for if it is any of my business? Could ask at Audiokarma and get lucky but doubtful.

You and stormin, What you say! 😃 Or say that again might fit better.

I will take that to mean active crossovers in the works for Heritage speakers. TI hope that will mean there is going to be a way to tailor the sound for your particular room instead of a passive X-over one size fits all rooms. That would be taking speakers to the next level, 21st century technology. Being old and perfectly happy with the sound of my AA's in my '86 LaScala's they will not be for me but for a younger audiophile with many working years left having a speaker that one can tailor the sound to the room would be a highly desirable asset. Nelson Pass is a proponent of active crossovers so I am as well.

One thing for sure if using non authorized parts is a different sound from what the engineers designed into the speaker system. And that is what our speakers truly are. A speaker system and not just one speaker in a cabinet.

Or in other words from what Chief said if you want to hear what the sound engineers at Klipsch liked best at the time your speakers were built stay with authorized parts for replacements. Personally I like the concept of simple as it seems PWK did as well. PWK designed crossovers were as simple as one can build with just as few parts as were absolutely necessary. The A crossover network is a work of art. In the AA network a couple of extra parts were added in the tweeter section to protect it better from idiots listening too loud. I like simple. Those steep crossovers an after market vendor sells can suck the life out of the music as many say. In fact a member of this forum just posted pretty much the very same thing after purchasing those expensive networks. Family said he ruined the sound of his speakers. Lot more complicated with many more parts as well. I am curious why Klipsch has not gone with active crossovers in the K-horn, LaScala, and Cornwall as done with the new Jubilee. Many prefer active X-overs over passive ones these days. At the asking price of those speakers the cost would not be that great going active on them.

What I have found on my tube journey on S/N is 60db down from fundamental signal is sufficient for quite operation on my LaScala's. As you know SS amplifiers are generally going to be much better when tested on the bench. The last SS amplifier I checked was the SE V-Fet amplifier designed by Nelson Pass and it was something like 100db down from the fundamental signal on my distortion analyzer. Significantly better when tested but then 60db is good enough for my old ears. I believe there is always going to be a demand for SET tube amplifiers among a select niche in the audiophile world. What they like about Class A amplifiers, SET tube amplifiers are operated in class A by the way, is the audio signal is not manipulated at all or in other words left pure all through the amplifier not affected by the components making up the amplification part of the amplifier. In class D, and other forms of amplification, the audio signal is broken down and put back together in some way. Hey it works and can sound great but the audio signal is not as pure as in class A where the audio signal is left alone as much as possible. All this means nothing though when it comes to what one hears. If one likes what they hears why worry about what someone else says. It's entertainment.

But Claude, class A is still class A. I can enjoy one of my TPA3255 builds as well but class A is where my heart lies. The electronic geek in me understands it is the purest form of amplification.

I just wanted to expand on my personal thoughts on this subject of old vs new. Every person that changed anything on a Heritage speaker thought they improved the sound or there would not have been a change. Being that the Khorn and LaScala have been around so long there was many changes over the years, decades. I am almost positive some areas have been improved. The frequency response I am sure has gotten flatter. That said a ruler flat frequency response curve does not mean it is going to sound better being there is the matter of the materials in the drivers affecting the sound. For instance titanium vs phenolic diaphragm. The trend in home drivers leans towards the phenolic as being somewhat smoother sounding with the titanium being more for pro use. This is not to say either cannot be used in both cases, home vs pro use. Roy and his team are increasing the size of the driver in many cases as well as changes in the horn. Completely new drivers and horns are now being incorporated in the K-horn and LaScala along with the Cornwall. I would go out on a limb and say Roy and his team think there latest Heritage speakers are the best sounding of any of predecessors. As always though, being sound is so subjective, many might prefer the old sound over the new one if a comparison was made. But I am sure if given the facts most would prefer the new speaker over an old designed one. Another way of ending this thread is to say "an old Klipsch speaker is better than none at all."

Subs have entertainment value when paired with speakers. They do add something to the mix even if not used all the time. Anyone that has been to a live concert understands the music is bass heavy. Talking electronic music concert. Not something you want in a home environment all the time though unless you are a bass fanatic and have good neighbors.

Just did boo boo, anyways as we all know the price of K-horn and LaScala has risen quite a bit the last few years cutting out many that cannot afford the current price. Only alternative for great horn sound is on the used market for them.

Well said. Any old Heritage was outstanding sounding when built. I do not see how that could have changed if everything still working as should. Newer Heritage, different sound many might call better then perhaps others not. PWK liked what he heard.

Well said. I own a decent sub but for the last few months I have not turned it on with my LaScala's. Listened that way for 30 years and never thought I was missing much.

I wish I had a dollar for every time I was wrong on a topic on this forum. 🙂 Like Claude I tried a number of those class D boards and for the money some of them were respectable. All but the TPA3255 were kind of thin sounding on the kind of music I enjoy though. I could live with the TPA3255 if necessary.

Claude did you ever get a chance to compare the TPA3255 to the Hypex? I remember when you built those Hypex boards into an amp and read all your post.

A European company called Hypex makes one of the best judging by what members on this forum have said.

oops

What kind of amplification were you thinking T-amps are? I have always been under the impression T was the symbol for the company Texas Instruments. The review even states class D operation.

But your link to Wikipedia Micro starts off saying this, Class T was a registered trademark for a switching (class-D) audio amplifier, used for Tripath's amplifier technologies (patent filed on Jun 20, 1996). Similar designs have now been widely adopted by different manufacturers.[1]

I I knew you were heavily involved with tubes at one and also that last few years you have been praising class D. I like using some of my class D amps, I have many of them, for change in sound. Going from SET's to a good class D amp one will notice a totally different sound. I can enjoy both. Perhaps Claude you should give a good SET another chance. I think every serious audiophile should have one good SET tube amplifier for a change of sound. As I am sure you know ones opinion can change with time as we age.

I agree that class D is the wave of the future Claude but what still turns me on is a good SET tube amplifier. Class D for me, notice I said me, lacks some soul compared to a SET amplifier. But for many, especially those that like hard rock and loud music, a class D is what is going to turn them on. As always music is subjective.