moray james
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Posts posted by moray james
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John Hillig at Musical Design and Audio Concepts in St. Louis works wonders with these old designs and truly brings them into the realm of SOTA 21 st century electronics. John was chosen by David Hafler and Jim Strickland (Acoustat) to upgrade their designs.
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58 minutes ago, Alexander said:
Interesting, so how would you propose one would “trim” such a gasket internal opening?
You can simply use the best available fitting gasket for the time being and if you want cut a set of gaskets by hand to fit exactly. I know where this goes now, there will be a host of posts stating "mine are like this (or that) and my speakers sound excellent. You will have to be your own judge. You decide if a couple of tiny gaskets will compromise your sound or not.
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On 11/30/2020 at 5:41 PM, RandyH000 said:
you might as well , build a Cornscala ----Bob Crites has 4 styles -https://critesspeakers.com/crites-speakers.html
Cornscala C cabinet design is going to behave the best with the vents split to either side of the woofer and in the vertical. The standard Cornwall vent position at the bottom of the cabinet is not a good one as its proximity to the floor will prevent the vent from performing as intended (the floor makes the vent act longer than intended). Placing the mid horn to the top of the cabinet this gets it closer to your seated ear level (for improved stage and image) and buys you some free time alignment between the tweeter and the mid horn, this has no negative impact upon tweeter performance you are still well within the 1/4 wavelength rule.
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40 minutes ago, bsac335 said:
Anyone have a source? Or anyone have an idea of how I could obtain the original dimensions of the cabinets for a remake? Or could I just order som from Klipsch?
I tried to find a phone number for tech support but it as impossible. Not like the old days were you could actually call and get an actual real human being and get answers. So sad...
second time last time. https://critesspeakers.com/cornwall_plans.html
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the opening of the gasket should match the diameter of the opening at the throat of the horn which should also match the opening of the mouth of the compression driver. Trim the gasket to fit if necessary, when installing do not over compress the gasket as this will result in it bulging which will reduce the diameter of the pathway. Better to have a gasket with a too small hole which you can open up resulting in a smooth fit rather than a gasket with too large a hole which will result in a small cavity between the driver and the horn.
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as a three way your KLF30 have a more modern designed mid horn (which is also a wide band horn which is used as a tweeter in some pro Klipsch. This wider bandwidth proves this is a superior horn design which could be used in a two way design. This additional bandwidth has no impact when used as a mid horn in a three way design but the horn depth of the KLF20&30 mid horn has a distinct advantage over the mid horn used in a Quartet Forte 2 and Chorus 2 in that it is much shorter and so aligns better with the woofers which by the way will push much more air than a single fifteen inch woofer can. In my opinion it all boils down to whether you like the sound of a fifteen inch woofer or a twelve inch woofer best. The KLf dual woofers can benefit from an acoustic filter used on the bottom woofer an 1/8" layer of F11 acoustical felt works very well If you want to build a new front baffle you can place the mid horn at the top of the cabinet with the tweeter horn between the top woofer and the mid horn as this will buy you some free time alignment between the tweeter and the mid horns as well as placing the mid horn closer to your seated ear level for improved stage and image.
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10 hours ago, jjptkd said:
RC-7's have better crossover design and larger / nicer horn drivers but RF-5's dig just a bit deeper and are a little fuller sounding in the bottom end which is why RC-7 parts in RF-5 cabinets is the way to go.
yes I agree with your suggestion with respect to a modified RF5 if a single stand alone loudspeaker is what is desired, if however a single or dual sub system is the desired goal then the RC7 on a speaker stand would be a visually smaller option, that said a pair of RF5 up on stands to place the horn at your seated ear level would be best all around option especially when combined with sub(s).
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as a three driver two way the RF5 has to give way to the RC7 which is a 2 1/2 way design. Even with identical driver components this improved crossover has the advantage over a basic multi driver two way.
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2 hours ago, bsac335 said:
Anyone have a source? Or anyone have an idea of how I could obtain the original dimensions of the cabinets for a remake? Or could I just order some from Klipsch?
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it is unfortunate that scams like this do happen that's why I do my best to deal within forums I have been a member of for a long time. This sort of thing happens the most to folks who unknowingly post for a WTB situation. The lazy mans way to wasted time or worse.
So to other readers who have not suffered such situations don't be lazy and set yourself up, there are better ways to find out if someone has what you are looking for.
Hope you all have a very happy Thanksgiving with your family and loved ones. God bless you all and god bless America home of the brave land of the free. May the light of truth shine on you all.
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On 11/25/2020 at 3:33 PM, davidness said:
For sale I have beautiful pair of Klipsch RB-75 speakers in Cherry. They appear flawless, no scratches, chips, tears or anything wrong. Grills are in perfect condition. I have a nice set of upgraded speaker jacks on both crossovers.
Also, I have a nice pair of stands that do have a few scratches, but still overall very nice.
$900.00
$950.00 with stands
I’d prefer not to ship, but maybe...I do have the original boxes.
good luck with your sale, the top bookshelf two way Klipsch monitor excellent loudspeaker.
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I have a set based upon the same design principals on my JBL L200B though these used flat plates rather than curved ones. They do work to disperse as stated however I find that they mess with the stage and the image of the horn and as such I do not use them. I think had they been a success that you would have seen more in production and for a longer period of time.
I might add that similar but more complex versions of this concept were used by Beveridge electrostatic loudspeakers to provide a flat panel with wide dispersion characteristics.
for those who might be interested.
https://patents.google.com/patent/US3668335?oq=Beveridge+electrostatic+loudspeakers
Here is some JBL information on what they produced
https://jblpro.com/en-US/site_elements/2301-2390-2391-2392-2395-information
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the op might consider a pair of RF7 series two way towers since they will integrate better over a shorter distance than a three way loudspeaker. Not to mention that they can push more air than a pair of Forte 3 can and with less cone break up and have much greater power handling, in addition they place the horn closer to your seated ear height for improved response stage and image.
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23 minutes ago, paulgyro said:
Well lower and louder doesn't matter to me. I'm more wondering about the aspect of their sound quality.
the Heritage models are more efficient and as such more dynamic to listen to. This is something that you need to experience to understand and numbers will not help you, I can tell you that efficiency and dynamics are what make people accept the size of horn loaded loudspeakers it is a very addictive thing. That is why with horns larger is better.
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I generally find with an equilateral triangle set up that the speakers end up pointing somewhere between my shoulders and my head. If your driver baffle layout is not symmetrical you can also experiment with tweeters to the inside or to the outside. I also set up my stems with the centre of the did driver centred on my seated ear height (this usually is around 38" - 41" up off the floor). I hope this helps.
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6 hours ago, slovell said:
I've got my KLF-20s toed in but I'm wondering if I should have them straight ahead? I recently installed the LMAHL tweeters and they brightened them up quite a bit. Would pointing them straight ahead lessen some of the brightness and shoutiness of the horns? I already have Bob's crossovers with his bandpass for the titanium mid that I put in them. I also wonder if the LMAHL tweeter is a mismatch for the crossover? They sound really good with movies but with music they're more shouty and bright than they were before I put the LMAHLs in. Anyone have any thoughts, opinions, or advice?
Thanks,
Samfor the great majority speaker off axis response is terrible. If you saw the off axis response of your loudspeaker and was told that this was how the speaker sounded you would not be interested in buying the speaker yet this is how most choose to set up their loudspeakers. Beats me. I choose to use an equilateral triangle set up and achieve very good results.
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1 hour ago, OCBob said:
OK La Scala experts... I have a question. In a online video shot at the Klipsch factory , they show a woofer being installed in the dog-house, and then in the next shot, they show a guy shoving in a big hunk of acoustical foam in before it gets closed up. I've never seen a foam inside the dog-house of any Klipsch La Scala, or even a La Scala clone, What's the story? Is this something brand new for the AL5?
the dog house is larger than ideal, the foam does two things, it eats up some internal volume and it prevents the cavity from resonating.
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3 minutes ago, DizRotus said:
Hey Claude @ClaudeJ1 I thought you disliked the term “Cornscala.” Do you claim to be the inventor of the speaker, or the coiner of the term?
I was under the impression Bob Crites was the guy who coined the name Cornscala for his creation? Bob am I wrong? Would be good to know? Bob...
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11 hours ago, koloneliupasaulis said:
Hello, I need help to find Martin audio b215 plans
Maybe someone have it? Than you!http://hornplans.free.fr/martin_mk3.html this a dual the drawing below is a single
this way the thread does not have to rely upon links here is the drawing.
the Beck designed California is worth looking at and easier to move. welcome aboard.
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12 hours ago, edzu1234 said:
I think the next step up is the K-horn. I have had the Hersey, Forte II, Chorus II, Cornwall, and La Scala. I will give you my thoughts on this matter. The next step laterally would be the Cornwall. The Chorus II has about the same bass response and the similar mid and tweeter frequencies as the Cornwall. To pick the La Scala as the successor, you gain an unworldly better mid frequency but you simply lose all bass response. In picking the Klipschorn as the successor, you gain that great mid frequency that the La Scala has(that the Chorus II hasn't) and you get the tight throbbing bass of the king of horns.
Many users have stated a preference for the LaScala used with a pair of subs over a Khorn as it provides greater flexibility of set up which also benefits the sound quality. You could shout out to those who have owned both set ups and see what they have to say about it.
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On 8/22/2019 at 11:02 AM, Dave A said:
How did we get sucked into a year old thread? Ah yes Vasubandu and memory lane.
it does not matter, the topic of discussion is still valid and relevant to other readers. These topics continue to pop up again and again and your comments and experience can and will impact others for the better.
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1 hour ago, TJman said:
First post here! I recently picked up a pair of black lacquer Cornwall II's from 1987. I wasn't thrilled with the factory black and decided to strip the black using Citri strip and then sand down the remaining paint to refinish the veneer underneath the paint using Tung Oil. My question is.... What kind of veneer is this? It currently has one coat of Tung oil on it so far. I will include a few different pics of the process from start to finish. Let me know what you think! I have multiple pics, will need to upload one at a time.
what you have there is Birch and it looks lovely especially as it has only one coat of oil. nice job.
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1 hour ago, MicroMara said:
@moray james Then you´ve looked at my profile.
I didn´t wanted an two-sided discussion here either. You may have felt provoked, I´m sorry . Perhaps we´ll meet again in another thread. With respectful regards
that would be most welcome thank you and good luck with your room.
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5 hours ago, Skelt said:
The k55 and k55m arent the same as the others mentioned and uses different diaphragms.
my bad that should have been K54. I mentioned that the K55m is a little different but it can be used that said diaphragms are no longer available for it.
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I didn´t wanted an two-sided discussion here either. You may have felt provoked, I´m sorry . Perhaps we´ll meet again in another thread. With respectful regards
my new cherry AK6 K-horns
in 2-Channel Home Audio
Posted
easy just flip them over. Courier services do it all day every day!