Chief bonehead
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Posts posted by Chief bonehead
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Smiling comes a lot easier after a brew or 6......So just to be clear, you don't have any numbers indicating this alleged improvement? No dimensions or design targets for the people wanting to actually implement something? No data from other designs?
I think it's only natural to consider adding a nose alongside the wings if you're gonna go through all that work. Misconstrue my motives all you want, but these have only been serious questions. Your disrespectful attitude is unappreciated - which is extra annoying because you're actually well read. Try to smile sometime - I hear it's good for the soul.
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Evanescent and cut-on freq? Cool terms. Maybe too cool for me.....I don't believe that I'm going to be able to answer your rhetorical questions (i.e., questions that aren't really questions, but arguments) in the space limited here to "Wings on Jubilees". I'm not sure that you even want me to answer any of your questions, so I'll wait until you start up a thread on that subject, then I'll attempt to answer any questions that I can ascertain are questions, and that I believe can help.
Just one thought to munch on until that time:
On a folded horn (with or without dual bifurcated mouths), where do the final high frequencies originate and how much of the horn's path do they actually use to form their pattern before exiting the horn mouth(s)? I'd also recommend thinking about Danley's multiple-entry horn designs (which, of course, you believe don't work as advertised, but I actually do.) Think also about equivalent bandpassed filters in parallel and in series. Think about "evanescent modes" and the "cut-on frequency" of a horn segment -
f(co) = 1.84c/2πa
Chris
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We know the what limits the bottom end cut off. What limits the hf on folded horn if the diffraction slot/discontinuity wasn't there?that are much worse than combining mouths together again internally.
So how did you come to that conclusion?
Specific scenario: stock Jub LF versus Jub LF with a straight walled noise piece at any angle....I'll posit that they're going to have the same polars (same enough to consider the problem unsolved).
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Why am I not surprised doc....I'm not convinced it'd improve the HF polars though...once you bifurcate, you're dealing with two acoustic sources. I just don't see mathematically how the waves are going to line up again on the Jub LF. Roy is a smart dude so I'm sure he's got it figured out - I'm just not seeing it in the math, or even conceptually - short of doing very dramatic things that I wouldn't describe as a "nose". Or maybe "better" is a relative thing. My target is a constant coverage result whereas "better" could fall very short of that and still be better...
I need to get around to using Akabak more freely - I feel like it is capable of modelling some of these ideas - I'm just not comfortable enough yet to trust the results.
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Am so glad you are doing better DD!
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AGAIN, for theatre use, max spl is the goal.Please tell me that you are not so limited in knowledge as to realize that THX, Dolby, etc. are marketing hype and that you do know that they SELL the right to use their labels??? I also assume that you realize that there are some absolutely terrible sounding speakers that have paid and run those banners, but yet they still suck!Again, what equipment do you have and what makes you think you know more than PWK???\I can run 128 dB at the listening position with subs off and you???RogerMy listening room is 3500 sq/foot.
I like it LOUD! VERY LOUD@#$@! No such thing as a 2-way cinema speaker that is THX, or Dolby, or ?? approved for a reason. You ever realize that? Even the Jubilee had to be 3-way for Cinema use. And you point was what again....?Max spl and that they sound real good is the goal.....
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What are components of the mcm that you have?
Well that is just the elect crossover i have in mind, Amps ? have not thought too much about them yet, counting what im running currently, i have in stock:Pricey!!
What amps were you thinking?
2= QSC 1700
1= 70 wpc KT88 tuber
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I should have asked paul that......Why the obsession with 2-way?
It is a compromise IMO.
3-way or even better....4-way baby!!
Managed with good amps and technology that is available today.....ppftfffft state of the art stuff!
Why not take advantage of it?
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Yes, you are probably correct that he paid full price. Those are the new style K-510 tweeters and they have not been around very long. I doubt these were bought as a used item.
I also agree that we will probably not see him again. He seems to have his mind made up and probably does not want to go through the various issues about choosing a crossover point.
2015 Jubilees, as posted in my first post.
You guys are getting the hang of this internet thingy,.
Way to go!
I don't need you to tell me what sounds good to my ears.
Sang in barbershop, sang in world famous choir, played Sax and Guitar....have perfect-pitch. etc etc...
I know what I like and I do experiment after researching my stuff.
It is set-up just fine and I am done messing around. Time to sit back and enjoy.
You are welcome to spend eternity never happy and constantly fiddiling and tweeking your own system until you go blue-mental.
Knock yourself out my man!
Already predicted a few know-it-alls to come in here and tell me what to do.
That is why I first posted the crossover specs that Klipsch has on the web.
But, as expected.....some tard went ahead and re-posted them anyways and trying to tell me what I like.
Nice!
Also, Klipsch engineer that worked with Paul on these speakers absolutely told me to try 800hz for the 2015 Jubilees.
OK? Just accept it and move on already!
Sheeezh!
Ok......I went back over my notes.....worked with paul on the jub.....pulled out time sheets for that time period......and I found nothing to indicate that anyone else worked with paul on the jubs......whew. But that means that we never talked......
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First Scotty found the forum, im sure he surfed a bit on the forum.
Scotty did just exactly what we all did, requested or not, he posted his system. no easy task the way we need to post pics here.
His first response is to get Specs thrown at him? What the hell?
Hella way to welcome a newbi, but then again it's the "Cult" thinking, shining through in all its glory.
Is this the way you people make friends in life ? i want less to do with this forum everyday.
I don't think anyone did anything wrong but some people do have a high sensitivity rating. If I had seen his initial posts about the crossover freq I would have suggested a lower one. And might have thrown a few spec sheets in there myself....I keep a couple handy in my pocket.
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From the website itself
http://www.klipsch.com/KPT-Jubilee-535-B/details
FREQUENCY RESPONSE: 45Hz-19kHz +/- 3dB-10dB @ 34Hz SENSITIVITY: 105dB HIGH FREQUENCY HORN: KPT-Grand-HF-T MID FREQUENCY HORN: KPT-402-MF WOOFER: KPT-KHJ-LF CROSSOVER FREQUENCY: 400 Hz, 3k Hz
24dB/Octave COVERAGE ANGLE: Horizontal 90(o) +/-20(o) 200Hz-18kHz
Vertical 60(o) +/-20(o) 500Hz-19kHz DELAY: LF: 0 ms
MF: 2.27 ms
HF: 2.81 ms DIMENSIONS: 77.25" (196cm) H x 41.5" (105cm) W x 24.3" (62cm) D WEIGHT: 265 lbs (120 kg)
Thank you Capt. Obvious!
Already posted that info just above if you were to bother reading.
Now be nice.....
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Damn coyotee-o finally did; he cloned chief bonehead......
uh-huh....The Bass bin can easily go up to 1000hz, but I have it set around 800hz as per the experts at Klipsch.
Talk to Roy (Delgado) - it doesn't get any more expert than that. Anyone telling you it's 800 Hz , I'd like to know their name.
The bass bins will surely go to 1200 Hz in terms of on-axis response, but the polars (and corresponding power response) are really, really narrow up there, which doesn't sound very good. That's why everyone that has those jewels cross them at about 425 Hz. per the Klipsch anechoic chamber-derived settings. If you're using the K-510/K-69-A (3-way Jub) on top, you can cross that over at virtually any point above ~2 kHz you want.
There are slightly better bass bin settings using a Yamaha SP2060 here: https://community.klipsch.com/index.php?app=core&module=attach§ion=attach&attach_rel_module=post&attach_id=106126
Chris
EVERYONE! lol
We must all be the same.....
I am not listening in an anechoic chamber believe it or not,
and YES an expert at Klipsch gave me those recommended settings and I agree with them.
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Don't know who you talked to but with a 402 horn in a three way configuration I would always recommend 400hz; 500 hz for a two way with the proper driver.Wow, traffic jam. Welcome!
I assume those units in front of the Jub bass bins are going somewhere else soon...(?) The typical crossover frequency of Jubs is about 400-450 Hz on the low end, so those bass bins are producing sound almost at a tuning fork (A440) frequency, which is pretty directional. Those boxes (I assume that they're Altec Valencias or something else similar) will cramp your style in front of them.
See https://community.klipsch.com/index.php?/topic/131163-corner-horn-imaging-faq/
Enjoy!
Chris
Hmmm...not what the guys at Klipsch recommend to me on the Phone.
More like 800hz, even though the web-site says 400hz
The Bass bin can easily go up to 1000hz, but I have it set around 800hz as per the experts at Klipsch.
??
Yeah, I do not recommend McIntosh speakers at all.
They are on eBay and Craigslist.
In front are 1977 McIntosh ML-2M.
I now use them just as a table to hold my Vinyl that is spinning.
Five way....Six speakers each. 2 12" woofers.
Maybe 87db 1watt @ 1 meter on a good day? (If that!)
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Some 3d printers....
Very cool 5 axis machine.
HAAS custom 5-axis CNC mill I made.....
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I take it that your amp is a DC amp.I'll be corrected if I'm wrong but, I think you are measuring the electrical resistance but, they are horn loaded and the horn adds more impedance to them acoustically
(or something like that)
I get lost in those conversations.
I dunno, but my amp only cares about the electrical resistance to be happy.....
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Absolutely correct.As mikebse2a3 pointed out, resistance and impedance are not the same thing, although they use the same value (ohms). Checking the resistance with an ohmmeter will tell you whether you have continuity (no broken wires or connections, for example), but does not show you the impedance of the speaker.
The impedance shows what the amplifier is seeing while the speaker is operating in its cabinet or driving its horn. It varies greatly with frequency, so the single impedance number (4 ohm, 8 ohm, whatever) assigned to a speaker is a nominal value, really more of a judgement call than an absolute value.
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One Jubilee measures 3.3
The other 3.4ohm
Why they have an 8ohm decal is beyond me...?
CLEARLY, need 4ohm output from amp. ??
Can't always believe what ya read guys!
Pretty simple. It's 8 ohms nominal. A speaker does not present a constant impedance to the amp.
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Hey. Yes you can. The replacement woofer is called the k-47-ep2. It's amazing that you still have these installed. I may to come to your church to hear them. Incidentally I was one of the engineers that designed that system. And it warms my heart to know that they are still working good for you. If you have any problems with getting the parts just email me at roy.delgado@klipsch.com. Take care.
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Got it. Thanks.
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Sense.
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Unless you are going to plug and unplug quite often don't see how changing to nl4's changes anything!
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Sigh.
I didn't understand why Marty was so harsh. I also knew that Marty has a solid relationship with Craig. Though my comment was meant to be taken in a playful way, I did have an underlying suspicion that Marty's motivation was to protect Craig's livelihood and/or that he was regurgitating things that Craig had told him. In short, I was using the comment to solicit a reaction. Now, I'm being completely truthful when I say this, but I didn't realize this until I read this read and wondered whether or not I really contributed to the issue. The comment was emotionally driven, I didn't think much about it as I was typing it out. At the time, I knew it was appropriate to apologize, but only now do I realize that I was apologizing for the wrong thing.
Back when I was healthy; I was sarcastic, cynical, somewhat passive-aggressive, and had a terrible temper, Most of the time, I could hold myself in check, and could even manage to be pleasant every once in awhile. On the forum, it took a bit to set me off, unless it was a straight out personal attack or the inference that I was taking advantage of people by selling them flooby dust.
Post Cancer is a little different; I seem to spend a lot of time second guessing motives, and I have no tolerance for being jerked around, not even a little bit. I hurt everywhere, and no longer have the energy to get angry and fight with people, it's just easier to cut them out of my life. The way I see it, if someone is actually expending energy and putting effort into making me miserable, they need to be gone. Unfortunately, this isn't so easy to do on a message board. You can get someone out of your personal life, but you're kind of stuck with them here -- and this is where things get complicated.
There are a lot of relationships here, and if you happen to have a falling out with someone, (or in my case, a half dozen of them), you spend a lot of time biting your lip and avoiding threads they post in. Sometimes you just can't help it, and you end up in a thread you know you probably shouldn't be in, but you've got something to say, right? Stiflingly yourself on a regular basis gets old, so you go against your better judgment and jump in. I know I toe the line sometimes with my remarks, and I can push the right buttons with the best of them -- but that really wasn't the case here, at least not consciously.
I'm pretty sure I shared more than you wanted or needed to know, and much of it probably falls into the "who gives a ****" category, but I wanted everyone to consider the complex dynamic that's at play here. Quite a few people are upset with me, and I vacillate between ambivalence and apathy -- and this occasionally bleeds over into the forum. So, there you have it, it's all my fault!
At this point in my life I've learned that some people require something that I'm simply not capable of giving -- my posterior.
Deano. Cut it out. Life is too short. Don't let the boneheads get you down buddy.
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How much?Those who haven't been here long might perceive that in some of our old timers who, indeed, are in business and yet are allowed to operate pretty freely on the Forum
Buy my hot sauce!
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Sorry deano. He wants a GOOD sounding net.WARNING: SOLICITATION FOLLOWS.
I'd be happy to build it for you Richard. It may take about a year though.
love you man!!
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I like it LOUD! VERY LOUD@#$@! No such thing as a 2-way cinema speaker that is THX, or Dolby, or ?? approved for a reason. You ever realize that? Even the Jubilee had to be 3-way for Cinema use. And you point was what again....?
wings on Jubilees?
in 2-Channel Home Audio
Posted