PrestonTom
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Posts posted by PrestonTom
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This is progress, a tentative congratulations. I will say, these must have been beat up during the move or storage.
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The same hunches are bing re-hashed.
Important: this happened to both speakers not just one. Let's not get carried away by an improbable "coincidence"
Important: The OP said the bass was lost to an extent "that they sounded like headphones". "Sounding like headphones" is a major (not minor) deficit. And with other speakers in the room "those sounded normal"
Obviously two things would be helpful. ) First - an inspection of the wiring and a volt meter to check for a open circuit (crossover or blown woofer and by some weird coincidence it happened to both). Second - run some pure tones through the speaker (at least an octave or two below the crossover point).
Those would be interesting results (and some have already mentioned these diagnostics).
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What is perplexing is that both speakers are showing the problem.
Well, at least no one has yet suggested that you need ---- 1) to use a tube amp, 2) to use a SS amp, 3) use vinyl, 4) put a few inches of foam along the south wall, 5) replace all crossover caps with $800 poly-metal-film-copper-etc caps.
The last time something like this happened to me, I had modified something and intended to get back and finish it up. Instead I put the item in a closet and forgot I was in the middle of something and 2 years later I fired it up and it sounded like crap. I hope you have not fallen into my bad habits.
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Just to be clear - Both speakers are showing the same symptoms? If so, is there a possibility the EQ was left in some "funny mode"?
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Create a CD with test tones (sine waves) spaced every third octave (at least). If it is distorting, you will hear a "harshness". At what frequency does that occur? This will help narrow down whether it is a driver or a rattle in your cabinet. Determine the frequency, don't try and guess the frequency.
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I am starting to regret that I asked the question about drop-shipping.
So I feel obligated to share my experience. About 10 years ago I purchased the K-402 package (horn, driver and stand) from American Cinema Equipment. My understanding is that these were drop-shipped from Hope to my house. The packaging was carefully done and they arrived intact. It was clearly packaged at the factory and not by a third party.
They were so well-packed that I can't imagine them ever being damaged in transit. However, I know this sometimes happens and I have to assume that someone would have to be an idiot when stacking them or using a fork lift.
I certainly had no complaints.
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49 minutes ago, ricktate said:
The risers could have been made out of scraps. They also painted veneered speakers if there was a flaw in the veneer. Veneering is easy after you practice on some something first.
Keywords: Practice first
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This is going to be a fun project !
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8 minutes ago, MMurg said:
As far as I know Paducah Home Theater used to get the Underground Jubilee shipped to their warehouse and then they shipped them to the customer. Don't see why the handling of the new Jubilee would be any different from that or any other Heritage product.
That is interesting. Their competitor, American Cinema Equipment, sold a ton of "underground Jubilees" over the last 15 years. In their case, the product was drop-shipped from Hope. Although they were a selling the Pro stuff and not Heritage/Home stuff.
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I am curious about the logistics on these "new" Jubilees.
Does the vendor get a "demo version" for their store and subsequent orders are drop-shipped from Hope to the buyer or are all Jubilees shipped from Hope to the vendor and then delivered to the buyer?
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I am afraid you are trying to use logic. Some are believing in using magic.
You will have problems if you try and take away the magic.
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You have a PM
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This is very sad news.
I have the utmost respect for Gil, he is truly one of the good guys on the forum. I sincerely hope things take a turn for the better.
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Those DSP units (depending on their configuration and whether they are working) are worth a small fortune.
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This may explain why some of us, including me, were confused by the configuration of the bass bin. This was released by Klipsch (I assume) some months ago.
For those of you just entering the morass, apparently this is NOT the configuration of the Jubilee bass bin that will soon be released. However it is still worth a look.
-Tom
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I see that I have already answered this question over a number of years (it is an old thread). The thoughts still count
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With all due respect .... if the OP is suffering a medical issue, then talk to a medical expert.
The Klipsch forum is not a substitute. Tinnitus can be a result of Noise exposure. There are ways of preventing further damage. If it is a symptom of an underlying disorder, then it should be treated. Any talk of whether a "speaker is the cause" is ridiculous. Treat this seriously and not as some audiophile nonsense.
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Without a spec sheet I am only guessing so please correct me if I am wrong ......
It looks like the DSP unit does not provide for a digital input. I grew up in the early days of DSP, and it was drilled into our brains that you want to avoid an "extra" A to D conversion (CD to analog out to DSP analog in then to Digital for the DSP processing then back to analog for the amplifier).
So are there only analog inputs on the DSP box (both balanced and unbalanced)?
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9 minutes ago, Trey Cannon said:
Not and be a tri-amp active system...this speaker needs 3 amp channels for each speaker...
Trey, Once again I am confused. This is a two-way system (woofer and tweeter). Why would it require tri-amping? What am I missing?
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6 hours ago, mikebse2a3 said:
I’ll try to cover as much detail as I can remember and if I am mistaken about anything I would appreciate Roy correcting, clarifying or adding to my descriptions/information.
(1) The Jubilee LF Horn consist of (2) 12” drivers to improve efficiency and the (3) Vents are located in the lowest position because they perform better when they are coupled closest to the floor of the listening space. The best location of the vents was learned during the development of the KPT-HLS-1802 and verified during the development of the KPT-HLS-1502 and now the Jubilee LF has also verified that research.
(2) The Jubilee LF Horn has a true 20Hz flare rate while the “Underground Jubilee” and Klipschorn have 40Hz flare rates so this along with the (2) 12” Drivers + Vents + Back Chamber allows the Jubilee LF Horn to reach a solid 18Hz on its low end performance. Note also the mouth area of the Jubilee LF Horn is much larger than the “Underground Jubilee” which also leads to a performance increase.
(3) The Jubilee LF Horn has been designed with improved splay angles of the Bifurcated Mouths which increases performance of the polars to a higher frequency before the cloverleaf effect of polars from Bifurcated Mouths begin to appear. This was an area of improvement that the “Underground Jubilee LF Horn offered over the Klipschorn LF Horn. This feature improves the performance and consistency of the polars in the crossover regions of the Jubilee LF Horn and the Jubilee HF Horn when compared to the “Underground Jubilee” which was the best we have had when it was developed until now.
(4) The Jubilee HF Horn consist of the Klipsch K693 (Celestion Axi2050) driver mounted to the K402 Horn and Roy’s design of a Phase Plug Extension which optimizes the coupling and polars of the Jubilee HF Horn/Driver. Roy has extended the polar control of the horn/driver to 19kHz which up until now was limited to ~6.8kHz with all the 2” exit drivers internal phase plug controlling the frequencies above that point. This improves clarity of imaging by allowing a more consistent specific location and consistency of image movements within the soundstage with less wandering due to polar shifting with frequency of previous designs without the newly developed phase plug extension. The K693/K402 combination brings another area of improvement versus past designs by lowering the low end frequency extension of the Jubilee HF Horn/Driver combination. This allows improvements in the Polar Control to a significantly lower frequency and allows a wider range of frequencies to be handled by the K402 Horn. This lower polar control of the Jubilee HF Horn and the higher polar control of the Jubilee LF Horn allows the apparent seamless blending of the Horns in the crossover region which is if I remember correctly about 270Hz electrically and 340Hz acoustically.
(5) The DSP unit has both IIR and FIR filter capabilities which allows the optimization of Frequency and Phase of the Jubilee System. It has both Balanced and Unbalance Inputs/Outputs. The LF and HF both have Level Controls to allow optimizing when using dissimilar amplifier designs for the LF Horns and HF Horns.
So with all that said how did it sound to me….😄
Sorry but …I’ll have to go into this tomorrow when I have time because I want to describe my experience as accurately as possible and its late and I’m tired.
Mike, Thanks for your clear explanation. My confusion came from the sketchiness of some of the other descriptions and also from a "preliminary spec sheet" that was a floating around a couple of months ago. That spec sheet indicated a very different configuration.
I guess the development of the bass bins has been an ongoing evolution and included some major last minute changes.
I apologize if my direct statements ruffled any feathers.
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Actually that picture shows "anti-mumps". Incidentally, the JBL horn and driver are very good (I have had both the K-402 and the JBL .....)
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Maybe we should let Roy explain.
Your picture may or may not be accurate and Corey's description was certainly not very good on the technical aspects. Why not let Roy explain what was actually done. Otherwise we will be knee-deep in conjecture
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This is sad news.
My deepest sympathy to Roger's family and friends.
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Well this is the EPILOGUE.
Yesterday the Jubilees went to a new and loving home. The transaction could not have been smoother.
The buyer had not heard Jubilees before, but had distant memories of Klipschorns from his youth. The demo consisted of Tracy Chapman, Cowboy Junkies, Dave Brubeck, Natalie Merchant as I recall. The grin on his face was classic. For those of you fortunate enough to have Jubilees, remember back to your first experience - yes, it was that kind of grin!
For those of you interested, the advertisement generated a good deal of activity. Location, transportation, size of the big beasts, and lack of cash were the prime deal breakers.
I am confident that they will continue to bring pleasure to the listener in their new home.
My girl friend stopped by with some freshly baked bread as a bit of a Bon Voyage gift (Sourdough with rosemary - it has been our pandemic hobby). I really think she wanted to see if I had a tear in my eye. After a glass of wine I waved good bye.
During the time I have enjoyed this passion for big Klipsch speakers, I have met some truly great and wonderful folks. Yesterday was no exception.
-Tom
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Congratulations to Roy and the folks at Klipsch
in 2-Channel Home Audio
Posted
Congratulations to Roy and the folks at Klipsch !
The newest version of the Forte was listed as a finalist for both Stereophile's Speaker of the year and also as Editor's Choice for Component of the Year.
In looking at the reviews and the competitors' prices, It might make sense for Klipsch to raise their prices to something astronomical.
Congratulations to all ....
-Tom
https://www.stereophile.com/content/stereophiles-products-2021-component-year