pcbiz
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Posts posted by pcbiz
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Wow! Gone already.
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So I've given up on the ALK crossovers, but the Crites crossovers are sounding really good.
New titanium tweeter diaphragms
New midrange diaphragms
New passive radiators
New 2 inch risers
New 10awg pure copper wiring
New Crites crossovers
I also used Kilmat on the horns, which was a huge improvement.
I'm pretty new to Klipsch. My only reference points are the Forte III and Heresy III. My goal was to get these closer to the modern Klipsch sound, and I have succeeded! -
Nice! The latest Klipsch models use 2" midrange drivers as well. That alone makes a huge difference. I'm also using those SMAHL tweeters in my Heresy pair. Another huge improvement.
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On 8/23/2021 at 6:04 PM, Vincent.90 said:
It is all very special, found mounted in a nightclub and paid $ 1900. But the fact remains that they don't make lows🤔
I do understand. The pro series are always skimpy on bass by home audio standards. It makes sense in a live venue for the bass to be lower. A different driver or... a better crossover like the ALK CSW-450, which dips an octave lower for the La Scala or Klipschorn, would get you more bass.
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22 minutes ago, geoff. said:
@pcbiz, have you tried the ALK Universals in your Chorus 2s?
No... I've thought about pulling them out of my Heresy pair to experiment, but I'll leave it alone as Al isn't supporting it. It would probably sound great and then flub out at high volumes.
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1 hour ago, Racer X said:
I really do not believe any mod will tame the nature of the LaScala bass horn. On the plus side it will play very loud and clear, but not low and uncolored.
I'm sure the bass will be satisfactory for me. Maybe not for you, but fine for me. Try these "mods" and let me know how it goes.
Mod 1: Place unobtrusive braces in the bass bin.
Mod 2: Place the speakers on two foot solid wood tables, and isolate the bottom of the bass bin and of the table's feet as best you can.
Mod 3: Get a subwoofer
Mod 4: Get an ALK crossover with the one octave lower feature.
Mod 5: Listen to the modded La Scalas for as long as you'd like, then buy brand new AL5s.
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9 hours ago, Racer X said:
Not to dissuade you from your vintage LaScala dream, but as someone who moved from LaScala to Cornwall to Heresy, the LaScala is the most deficient in bass. No low bass to speak of and a huge bump in bass horn response around 100 to 200 hz.
That's what mods are for.
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27 minutes ago, Dave A said:
That is a problem easily solved. When I make my braces they do not extend into the rectangular section next to the doghouse but rather are shorter a bit than the depth of the angular section of the doghouse. Sliding the brace in until snug has worked on every one so far I have done as the angle from the doghouse point to sidewall is very consistent even in pre cnc days. Like other things though that no brace decision was made and the reasoning was not recorded and we will never know why.
I'm going to need those braces when I get my La Scalas.
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7 hours ago, RandyH said:
Adding the 1/4 inch to the side wall eliminates the resonance , without the need of braces , and braces are also real ugly , they make a Lascala look like a Peavey cab , so no wonder Klipsch avoided the idea all together-
in the 80's and 90's , on the Lascala Industrial rounded corner cabs , klipsch switched to a plywood that was slightly thicker than 3/4 inches and that eliminated the perceived resonance , so a stiffer cab , they now use 1 inch MDF , with 0 issues -
Science! 🎵
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Trying to upload a photo, but the jpg (now a jfif) wasn't recognized. I guess the forum update isn't working like before. The png format shows up fine.
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1 minute ago, Dave A said:
OK you mention 2" risers vs plywood. What exactly is the new riser construction in material and thickness and how is it put together? All the risers I have had for Chorus speakers were in great shape and I never noticed any resonance.
I didn't notice the resonance until it suddenly disappeared. Solid pine, 3/4 inch thick, 2 inches high, solid corner braces.
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I'm using a Musical Paradise MP-301 Mk3 with KT-150s. DAC = Schiit Modi Multibit.
I've also replaced the crossovers with Crites Chorus II crossovers, as one original crossover was shorted out by the previous owner. Next, 10awg wire from the crossovers to drivers, and input connections. The thicker wire gives you more volume, presence and detail, with or without the new crossovers.
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10 hours ago, Dave A said:
For anyone who doubts the efficacy of these braces try this. Take a bar clamp and two pieces of plywood. Span the front center of the cabinet and clamp those pieces of wood down on the side and see for yourself. Easy test to prove concept before altering what is there.
That sounds like a great experiment. The other day I installed 2 inch solid pine risers on my Chorus IIs. The original risers were tattered and ripped, and I figured 2 inch risers were the best option. Besides, they look more like the current Klipsch lineup. To my surprise, the 2 inch risers took away some of the resonance from the cabinets. The bass was tighter, and the highs were clearer. I'm pretty sure that's one of the reasons the new Klipsch speakers have 2 inch risers vs the older plywood risers.
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14 minutes ago, Peter P. said:
This was going to be my suggestion. But my first thought was, if the cabinet need reinforcement, the PWK would have put some in there!
PWK wouldn't, but the current Klipsch engineers definitely have.
Just look at the AL5 construction video. You will see a factory worker putting foam in the AL5 doghouse. The factory also uses heavier wire than PWK recommended.
Advancement continues with the greatest respect to PWK. That's the nature of engineering.
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3 hours ago, Dave MacKay said:
How much foam padding would be appropriate? Does the foam need to be placed anyplace specific, or fastened somehow? Or can it just be left loose?
I've heard of people wrapping their squawkers in Dynamat, but hadn't heard of using it on the bass bin. I'd be interested in any experiences people have had.
Look at the AL5 video on the Klipsch website. It looks like they slide foam into the doghouse without fastening. Others have placed Dynamat or foam in the doghouse and had similar good results, taking the tip from the AL5 construction video.
Another thing the new La Scalas have is heavier wire, which will improve old speakers as well.
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3 hours ago, Coytee said:
I'm not an engineer nor did I stay at a Holiday Inn last night....so take my comments with some grains of salt.
That said, as per Roy's comments, if a speaker needs foam inside the doghouse, they put it in.....if it doesn't.....they don't.
The inside of the LaScala doesn't have it therefore I conclude (based on Roy's comments) it doesn't need it.
It's not the doghouse that's resonating anyway. It's the huge outer panels that you are trying to tame, not the inner panels. The inners are much smaller (duh) and are mounted on the top and bottom. It's the huge soccer field sized side panels that are large and unsecured on the front edge that needs tamed. Foam or dynamat or a box of chocolates won't help the outer panels if it's on the inside.
An A/B test is in order here. In my A/B, I saw improvement. Not a maybe. A real improvement. My ears don't lie, and neither do yours. Life is an A/B test.
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Add Dynamat or KilMat to the interior of the dog house. I've heard other users do this, and it makes sense. I added KilMat to my Heresy I mid horn, and the result was very pleasing. Better highs and lows, more detail in the mids.
Additionally, Klipsch now includes foam for the AL5 doghouse. Try it. You'll like it.
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Very interesting. I might consider these when I start my La Scala project.
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Has anyone tweaked this design for the Chorus II?
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The Paducah guys made a great video on Forte IV vs Cornwall IV. Very informative.
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Single Cornwall in WV... again. $300 OBO
in Alerts!
Posted
Price lowered to $540.00