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Some Background on the Jubilee

Coytee

Super Member
Some of you dunderheads might go to the Klipsch forum, might have seen this. Some of you other dunderheads might not get over there....so this would be for you or anyone else who's not seen this.

I myself was informed just yesterday that this was posted there. Rather than make you find it, I'll post the link here.

Straight away with the link: https://audiophiliacpodcast.buzzspr...-roy-delgado-on-the-making-of-the-new-jubilee

As some visuals to what you might hear in the interview (which is probably 45 minutes long, but I didn't time it)

Roy talks about Mike in Tennessee. This was the day his were delivered. He had the black industrial units like everyone else. This was in August of 2006 (to clarify when this happened)

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You've likely seen this picture, this was PWK's original vision and the trebel horn on top is the one they had issues with AND was going to become very expensive. I believe it was called the K403



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Roy mentioned having what ended up being called "Jubefests" where a group of crazy's were invited by Roy to spend a weekend at the engineering facility in Hope with him and we'd listen to various things, do some testing. Some pictures of that are below.

I was privilaged enough to be allowed to attend these. We listened to various speakers in various formats. We listened essentially to five songs of Bonnie Raitt over and over and over and over and over and overrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr

I still have nightmares of her singing to me at night. I went here thinking it would be a JAM session.... bring on some orchestras, bring on some rock & roll....bring on sensitive girl with guitar..... nope, none of those. It made sense....you listen to the same thing so you know what to listen for and you are "listening to the SPEAKER, you are NOT "listening to the sound"" Even though you are obviously listening to the sound.


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We had the Palladiums in there, we had a factory fresh Khorn in there.....nothing was spared.


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We were also Roy's little grunts. Moving things in/out of their chamber for testing and listening. We had the Jubilee in the chamber with the smaller K510 horn on top, then (following picture) with the larger K402 horn on top. I am here to tell you in case you don't know.

"The bigger the horn, the BETTER." (<--note that their is a period there). When the 510 (smaller) horn was playing, if you stood BEHIND the speaker you could hear a certain amount of sound. This was the sound that splashed behind the speaker. When you did the same thing with the larger K402 horn, though in absolute terms you could hear something, it was nearly mute behind there when compared to the K510. So the 402 was controlling much more of the sound, pushing out out FORWARD and not letting it splash around the sides to come back to you. Implication? The smaller horn allows more sound to splash around to hit your side walls and add to destructive interference whereas the larger horn minimizes that.
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Roy talked about some nutcase (Rigma who happens to also be an engineer) who created a 100 pound crossover, spared no expense. Having carried the crossover myself, I think it actually weighed about 40 pounds but still..... it was a monster. Rigma has mounted them on his wall as sort of wall art.

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We got to meet PWK's widow, Ms. Valerie
Funny (to me) story. We went to her house. She got excited about all of us kooks there. She went to a closet and started to pull out Klipsch coffee mugs, Klipsch T-shirts, Klipsch Hats..... and asked who wanted one.

Well, as you might expect we ALL clamored a bit as everyone "volunteered" to have one, two, three items.

She then, very shrewd, after passing them all out, said "ok, so the Mugs are $3.00 each, shirts, $10, towels.... and so on.... all the funds went to a charity. Nobody felt "taken" but it was funny how she absolutely finessed us. Had she said in the BEGINNING, who wants to BUY some shirts, mugs, other.... probably would have had the same result of 'sales'. I just thought it was funny how she hooked us FIRST, and then let us know we were making donations.

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Speaking of their home.... she had one of the prototype Jubilee's in there and it wasn't working. There were some smart guys here so we offered to fix it for her and they took it apart. Me, being the opportunist I am, took pictures so I could see how it was built.

Come to find out, the speaker in her house is the EXACT speaker they were selling. What they did was simply add some beauty panels to it and some grills. So anyone that has the "underground" version, can do this, if you have the wood skills.


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I forgot until I saw this come up, she has what was going to be the "plastic" version of the K403, not the wood version.

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I wanted to see how the grills were made and attached.

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What you see here is they added the 3/4" "beauty panel" to the front, then added the grills that you can see on the right corner. They had an "twisted octagon" shaped piece for the center.

So, how much nerve does it take to walk into the home of PWK's widow.....and take a screwdriver to her husbands swansong speaker?

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Note the mounting hole at the bottom/center
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I'll stop here. If you decide to listen to the podcast, you will hear some commentary. I just wanted to see if I could add some visuals to some of that commentary.

I've not yet heard the new, Heritage Jubilee but the "Underground Jubilee" is one of the best things I've ever heard, only surpassed by the larger MWM's.
 
To go back to Rigma's monster crossovers, my understanding is he had $3,000 in parts alone to make a pair. During one of these Jubefests, Roy brought out the idea of using a TAD-4002 driver instead of the stock driver. Roy created the DSP for the active units....designed a new passive.

Rigma bought the TAD's, went out and spent ANOTHER $3,000 in parts because the old crossover wouldn't work with the new driver.

Those who went with the active, simply dialed in a new DSP parameter and called it done.
 
Yeah, I went to three of them. I was unable to attend when Roy had the new, Heritage Jubilee (vented bass bin) with the Underground Jubilee.
 
Thanks Richard for posting this up for us. I haven't been back to the Klipsch forum since I sold the Jamboree speakers. Having to sell them to make a house payment was a pretty painful experience. I'll never be able to look at another pair without getting mad.
 
Thanks, somehow I'd missed that one. Roy is always interesting and there's always a bit of a technical veil as he tries to consider the audience. I envy you guys that have spent big-hours with him. There's always a couple tidbits that make the sit-down commitment worthwhile for listening. Appreciated.
 
Hey Coytee,

Thanks for tagging that interview, I missed that over on the Klipsch Forum.
It was great to hear Roy reminisce!

The above background pics also brought back a lot of memories for me, from back when I was living vicariously through all the early Jub adoptors like you, Mike, Rigma, ChrisA, etc.

Now, I wonder if us Undergrounders will ever be able to buy a pair of Celestion Axi2050 with Roy's phase plug. :idea:
 
Or a different twist on the question.... (because I doubt that driver has been 'curved' for your heretic oops, I mean Underground bass bin.... I'd guess it's only been curved for the vented bass bin, but, I don't know that)

What if you could instead, find a pair of TAD 4002's with the original BE diaphragm verses aftermarket?

Question might be.... in an absolute sense, which driver is better? (I have no idea) The TAD though, is no slouch. So, if you CAN find one of those, and you are using an active....all we'd need to do is send you the DSP for you to reprogram your active and you're done.

We did some side by sides with the TAD vs K69 (the original driver on the K402). I don't pretend to be a golden ear. I just love how these sound and their unrelenting dynamics (but I'm guessing you know what I mean)

Anyway... with my tin ears, I think I could walk into the room while doing an A/B test and probably pick the TAD most of the time. It's a pretty significant jump BUT, it's a pretty significant cost for the driver, IF you can find them AND, you want the BE diaphragm.

Same visits, we also did some side by sides on shallow verses steeper slope crossovers. I don't know that in this situation, I could walk into the room and say "Ah HA! You are using a steeper crossover than before" There WAS a noticeable difference (improvement in clarity with the steeper slopes) of the sound....I finally understood what people mean when they say 'AHHHH....it was like a veil was lifted from the sound" That is the exact way I'd try to describe it.

So, if you did a side by side, immediate switch, yeah, it's pretty easy to hear the difference in crossovers. Walk out of room, walk back in..... now I'm not so sure.

The TAD though.... I think it shows. So I'm not to worried about the new driver as I've got three TAD drivers. Two installed with a spare in case one blows and I can't find a replacement diaphragm. Or, heck....with the way our economy is going and things going crazy in price, maybe I could sell it for $32,000 lol. (that's a JOKE for those who take things too seriously)
 
Now, I wonder if us Undergrounders will ever be able to buy a pair of Celestion Axi2050 with Roy's phase plug. :idea:

I just posed the question on the other forum in the Technical Questions section, tagging Roy on it. Now we wait.
 
Yes, I thought I remember that you were running TADs.
The couple times I saw some for sale on FleaBay, I decided they were above my pay scale. :eek:

When I took the plunge and built my Jub-like LF bins, I mated my 402s with the Faital HF-200.
I did not have any complaints with that set up.

After stupidly :dunno: selling that system, a year or so later I refurbished a pair of Peavey FH-1s and put the 510 on top.
Again with another pair of Faital HF-200s, this also sounded pretty good but as you heard the 510 is not quite a 402.
So I bought another HF 402 section, with the K691s.
All of these configurations where dialed in by Chris via my Xilica XP-4080, I am not sure which slope Chris incorporated (shallow verses steeper slope).
I really cannot complain about the sound I am getting.
But I will take Roy's word about the Celestion being able to stretch the envelope.
 
But I will take Roy's word about the Celestion being able to stretch the envelope.

Having gotten to know him a bit.... knowing his integrity and hearing his creations, I'm to the point that if he tells me that stabbing my ears with an ice-pick will improve what I'm hearing, I'll take his word on it. Not sure I'll stab my ears but I won't doubt him.

He's all about trying to get to that .00000000000000001 improvement if he can. Since I'm a beer & peanuts kinda guy, I'm ok at 75%. Actually, I'm just a dynamics hore (spelled in case the proper spelling gets blocked). Since I've got that in spades I'm happy as the proverbial bug in the rug.
 
There are many innovative things going on with the Jubilee and I am glad Management has finally allowed the production of the JUBILEE to come to fruition. I have always loved big Altec, but it had to be three way. Double 817 boxes with 4 604's with HPLN version with a 291 mounted to a 311 horn between the two boxes or on top of the two boxes. The bass is only flat to 40 HZ but with 6 db of EQ they are flat to 32 hz. The highs with a little help easily reach 20,000 KHZ and we used a time aligning Rane crossover. And Here is Klipsch reaching an Octave lower with a 2 way system 35 years later. Wow!.

And I have to agree you have to keep the sound off the side walls and floors and ceilings, especially in small rooms and is why Don Davis developed Live End Dead End recording and playback studio concepts to get as much direct sound with out reflections to the listener for greatest clarity and if there were any reflections break them up so the ear would reject then as being irrelevant. Using a digital processing electronic crossover is brilliant too. There are so many new innovations with the Jubilee.. Hope they sell well in sufficient numbers to remain a mainstay like the Klipschorn has up till now. Whats a real plus is you really don't need big amplifiers to drive the Jubilee either. Paul was to have said all the world needs is a great 10 watt amp. These speakers prove that. Who makes a 4 channel amp now days? Mcintosh use to do so, MC 7104, Thats all you would need.

QSC made some nice 4 channel amps, too. I guess you could use a 5 channel HT amp and have a spare channel.
 
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Just so you know. Now that Samsung is taken over Harmon JBL, new DD67000 Synthesis top of the line 3 ways horn loaded speakers with dual 15 inch woofers are now $84,000 bucks. Makes the Jubilee at $35,000 a pair a real basement bargain price. And when the original 75 are gone the price will even be lower hopefully.
 
Anybody have the Xilica settings for the TADs?

I don't, but I'll attach the EV Dx38 settings. They approach the DSP settings in a different format so as I recall, you have to reconfigure the value to what the Xilica uses. (been long time since I've messed with that so that's just memory)

I'll attach the PDF here. This is for the 402 which is what I presume you have.
 

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