geoff.
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Posts posted by geoff.
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2 hours ago, Deang said:
The one piece phase plug K-55 is pretty much out of gas at 4.5kHz. The K-400 puts enough squeeze on the signal to get it to 6kHz. With a better tweeter like the de-120, you can lower the crossover point, and get the K-55 operating in the area it was designed to run. It also unloads some energy off of the K-400, which helps it not go into distress at live listening levels. The downside is the sound becomes a bit tweeter heavy - the tweeter often seems to dominate the sonic signature. Some like it and some don't - it's completely subjective. On paper it makes sense. In practical usage - it's hit or miss.
This is in the context of a first order filter, not with the steeper slopes that Roy is using.
A better solution is to run the the two piece phase plug version of the K-55 (or A-55-G), and the AA. At least, this is what I prefer.
The next thing I tried in my LSI Splits was the A/4500 and CT-120 combo.
I thought they lost some of the trademark forward signature, but was astonished by the clarity at higher volumes.
If I had to sum it up in one word it would be “refined”.
Tweeter heavy is an interesting take on it... the mids are less prevalent.
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On 6/19/2019 at 3:13 PM, jimjimbo said:
I think I may have mentioned this about 2 thousand times previously, but, get the CT120 and A55G from Crites, and get the Eminence Kappa 15C woofer from Parts Express. Wrap the mid horn in Dynamat, change out the old caps in the networks, and Voila!
The first thing I experimented with in my ‘92 LaScalas, based on the experiences of other forum members, was the Kappa 15C.
If I had to sum the immediately noticeable effect up in one word without hyperbole it would be “supercharged”.
“Bionic” just came to mind too, lol.
Everything you have read about this woofer is true.
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I thought I had read on here of a couple people replacing K-400’s with K-401’s and updating their crossovers from Klipsch.
I know Klipsch at one time had a Heresy 2 to Heresy 3 upgrade package available.
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From time to time, as necessity dictates, I sell off lesser, or more aptly put never, used equipment.
It was in one such exchange that I found it close to impossible to contain my myself from bursting out laughing. A very respectful gentleman that purchased a pair of RB-61’s from me (I no longer have any use for a bookshelf speaker, with the exception of my Hersey’s - lol) made the point of telling me face-to-face that he was “buying them for his daughter.”
He followed that up by stating he preferred the “studio sound” over the “live sound.” No harm, no foul.
But... the thing is, my sister and I still laugh to this day when we recall as children our mother taking us along to Sears to buy something, flagging down a sales rep and asking them “excuse me, MY CHILDREN were wondering...” When in fact my sister and I were oblivious to the entire process.
It was simply an attempt to “save face.”
Another comparison would be “I only read it for the articles.”
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...audiophlakes...
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Kettering!
Small world, a tornado ate half of our row of townhouses there back in the 70’s just weeks after we moved...
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One of my first revelations with LaScalas was how engaged I could be in the music at low volumes. I thought Cornwalls were (and still are) impressive at low volume until I heard these.
I was used to “pushing” every speaker until they became “alive”. The smaller the speaker, the bigger the push.
The converse is the case with LaScalas.
That is one of the miracles of highly efficient speakers.
And THEN when you juice ‘em...!
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Any used LaScala after 1989 is plug and play.
And THEN there are the “upgrades”...
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You put LaScalas in there and doctors won’t be able to surgically remove the smile from your face...
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Excellent suggestion above. A mock-up!
My living room is 12 x 20.
I have had LaScalas shoe-horned in on the short side and was blown away near-field. Actually preferred the regular LS over my LSI Splits that close - I think the top hat separated the mids and tweeters from the bass bins too much. Took me a moment to figure out why.
Oh, another thing, space permitting. Pull the speakers out in to the room enough so there is nothing between them. As much as you can... Imaging and depth jump another level.
Coyote suggested that to me years ago.
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Ok, true story, we moved to Canada from Ohio when I was in grade three. I remember thinking they all talked so fast up here.
Within a week of school starting, one of the girls in my class took the time to explain to me “In Canada we don’t say huh, we say eh.”
My dad still says huh.
But he stopped griping about the taxes after his “free” open heart surgery. Yup, that’s where the money goes...
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You are way ahead of the Klipsch curve (rabbit hole) most of us slide into!
You have the cash and the foresight to go big sooner than later. There is no replacement for displacement!
The amount of time and effort most of us (read “myself”) have expended before making the leap of faith to an ALL HORN speaker cannot be recouped, whereas the cost of a fairly priced used pair of LaScalas or Khorns can always be.
LaScalas are a game changer, and at half the price of Khorns.
My only regret so far on this journey is not snagging a pair of Khorns for a decent price when I had the chance, twice!
Of note... it is my understanding from what I have read on this (insert appropriate praise here) forum, you can make “false corners” for Khorns, eliminating the need for a perfect room.
Now, about Jubilees...?
I can only dream, but you...
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A jeep in a glider that crashed?
...I think I saw it in the movie!
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“I’m givin’ her all she’s got Cap’n!”
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... so it’s an upgrade, lol
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Wow.
We are witnessing a once in a lifetime opportunity.
Way to go, to whomever fate smiles upon!
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I just rotated my Chorus II’s back into the main system so I could reiterate a qualified (more or less - lol) opinion.
Had to drag my Peavey FH-1 bass bins with Kappa 15C woofers, K-510 horns with Faital Pro HF200 drivers, and one of Bob’s special crossovers to the other side of the room to do it...
Conclusion - your fence sittin’ days are over, go get you some Chorus II’s !
I have seen other forum members post this here too “the only regrets I have had are about the ones I didn’t buy.”
Heck, Emile will probably buy them from you if you don’t like ‘em, which would be about the same odds of winning the powerball lottery...
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If you only need the tweeter diaphragm, they are available from a couple of sources. Critesspeakers and Simplyspeakers, as well as Klipsch.
If it is the entire assembly you are in need of Klipsch is it unless you luck out on eBay.
I would suggest if you are ordering parts from any of these suppliers that you get spare diaphragms, as postage is more than the parts once you start crossing borders, and if you have blown a diaphragm once you will likely fry another.
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If you have the chance to get Chorus II’s for a fair price you owe it to yourself, and those you care about (lol), to do it now!
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Do you use the Heresys now?
The Fortes will sound better without a doubt.
But if it’s upgrade time, go big or go... as big as you can...
I no longer own any of the Forte speakers I once did, but I kept a pair of Heresys for posterity.
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Endo, there is nothing “wrong” with your Cornwall’s!
You have simply heard the “truth” with your Belles and a man cannot unlearn the truth.
Compared to Belles or LaScalas with their folded horn bass bins and larger midrange, pretty much any direct radiating SINGLE woofer speaker is going to seem lifeless. ”Cornscalas” and the dual 12 and 15 inch woofer direct radiating speakers can sometimes pull it off with the right(larger) horn(s) on top, but if and when you sell your Belles to move to anything but Khorns or Jubes, you will lament their loss.
I have owned three pairs of LaScalas over the years. I kept the LaScala Industrial Splits (LSI’s)...
Each time I sold a pair of LaScalas, the story from the majority of interested buyers was the same: “I used to have a pair and wish I had never sold them!”
I kept one pair of the four pairs of Cornwall’s I have been graced with over the years, and guess what? It’s the pair with the B-3 crossover. They do have tractrix horns now instead of the stock exponential horns, but I guarantee if I could fit LaScalas or Belles, or Khorns (LOL!) in the master bedroom the Corns would be looking for a new room.
I “A/B’d” my modded Cornwalls and Cornscalas vs. the LaScalas to my neighbours each time I had the chance, and their response was exactly the same as yours - meh!
As big as Cornwalls are, Belles are bigger. And bigger is better!
If I had to do it all over again, I would have never adulterated any of my Cornwalls, should have sold ‘em as is, and bought the pair of Khorns for $2500 that I waffled on for two weeks.
But if you are bent on beating a dead horse, as I was, CT-120 tweeters and some nice capacitors or aftermarket crossovers would be a rewarding experiment that could be almost recouped upon resale. Restore speakers to original and sell upgrades separately (to me - LOL!)
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Love it!
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New LaScala drivers and horns compatible with vintage?
in Technical/Restorations
Posted
I am currently using an AA crossover (in bad need of a recap) with the CT-120’s in my LSI Splits.
I love the highs and the mids.
I swapped the stock K-43’s for K-33’s to get the bass significantly lower at “normal” listening decibels.
The Kappa 15C’s went into another project (2-way Peavey FH1 with K-510), but would take these LSI Splits to another level.