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The Holiday season is a time for kindling the fire for family and friends. It is also the time to reflect on your blessing and see what blessings you can share with others. Let the genial flame of charity shine bright for all the seasons.

Happy Birthday Jesus! Merry Christmas to everyone else! I hope everyone has a blessed day.

Merry Christmas from Verna, Ms. Rose and myself to all! Big doings tonight! Stay safe! -Glenn

Like everyone said have a great Christmas and safe Holidays.

Happy Holidays AND especially a Merry Christmas to all

Merry Christmas all. Best wishes to you and all of your families!

Be around the fire later this evening w/family friends...Thanks and concur.

Hey there everyone! I wanted to bring some attention to the work I’ve being doing for the past 6 months. Ive been a bit more absent here, though have been moding and building at an even faster rate. At the gentle and not so gentle prodding of a few forum members I started an audio company. The support of the many DIY forums I’m a member of including Klipsch forum here has been instrumental in shaping both my technical understanding, values and principals I have sought in my love of music and attention to detail. I’ve only owned 3 true Klipsch products Gen I Heresy’s, Gen 1 Cornwalls and 1 industrial La Scala but have in love with the company the the ideas it embodies. What Klipsch heritage speakers have shown me is that horns allow for great sound with small power and that a good concept can is timeless regardless of the level of implementation. How all this relates to my own company includes: 1: build American if at all possible. 2. I can build lower powered tube amps which provide a quality of sound that is truly meaningful at a price most can afford. 3. Always build as though your product will be passed down. Klipsch products are bought and sold and more impressively handed down. I don’t know that anyone who buys my amps or speakers will own them for life but I certainly hope they do. 4. The Cornscala is the everyman’s speaker. Though I don’t post my own version of “the secret sauce”, I’m happy to help others in the process of building or modifying Klipsch speakers. Klipsch is the embodiment of from mild to wild and I believe this forum represents the most active seekers of that dynamic. Hope you guys can give me a look. If there is any feedback please feel free to email or call me. ampsandsound.com BTW: I asked Amy about posting prior to his message. Justin Weber

I actually started mounting things up and building the wiring harness. It always surprises me how long the little stuff takes. I end up using 12-14ft of silver plated copper with Teflon. Really nice stuff and completely over the top but why not. I did heat shrink each wire to keep them twisted, but didn’t take it the level of heat shrinking each connector. Ill post pics of my handy work late tonight. Last night ended with me flying home from visiting my Dad and getting the house back in order. I visited a friend and ended up taking a surplus chip amp home as a book end. From 12am-2am I was wiring and dressing the speaker. (Up at 6:00 and at work by 8:00am. I’ll be here in Adseg till 4pm and then off to the ER for another shift till 12am. On the way home I’ll do a bit more handy work, probably drop in a woofer. I’m missing some thread on adapters, compression drivers for the tweeters… guess I could use the eminence I have on hand and 1 15” woofer… Seems a bit like Franken speaker but when done will sing like no other… Fatial HF200, eliptrac 400, Eliptical tweeter with D220ti and the debut of the Dayton DC380 15” 8ohm. I’m trying my luck with a 8ohm woofer with my set of DIY universals. The Cabs are 1” MDF that will need veneer at some point but should be a great road/ demo speaker for my amps.

One can never spend too much time up north! You can make your own cornhole: http://www.cornholehowto.com/ This is a safe, family friendly website.

Merry Christmas, everyone!

That's the one I was looking for. Thanks Bruce.

Nice drawing!

Here a link to the drawing I made. https://community.klipsch.com/index.php?app=core&module=attach&section=attach&attach_rel_module=post&attach_id=36020 The entie thread... https://community.klipsch.com/index.php?/topic/91448-la-scala-bass-mod-again/#entry993324 DJK came up with this idea. Pretty much the same size as the top section of an LS. If you like the way it works you can enclose the back of a standard LS, open up the doghouse, and put the ports on the back side. This is totally reversible. It is passive, although you can add a small filter in between the preamp and power amp, to help even more. I'm doing that to a second pair of cabs I got a couple of years ago (my projects move very slowly! ). Bruce

Very pretty indeed. Thanks for he pictures.

Better to post it too many times; speed is the key.

Outlaw amps are quality. Made by ati amps in usa. Check out their product line which is more expensive as a reference. Outlaw also pairs up their amps with marantz pre-pros if you're familiar with those menus and setup. I would wait till I could afford something on the higher end of the power spec. Or you will be second guessing and looking to sell and upgrade. Hold out for 200 wpc. Then you'll be set for many years.

The SQ is better at home on a nice HT! Dittos!

Me be too!

Here is one of probably several with a pic...: https://community.klipsch.com/index.php?/topic/113929-lascalas-riser-modification/?hl=%2Blascala+%2Briser

If you cannot find the thread, I will help find...

Yes, the simple riser platform one with PVC is the one that I think *Sancho needs. Thanks

Clearly, many have damaged their hearing to the point where extreme power levels are now required to create a perceived loudness level that at some point in the past was probably being accomplished with 50 wpc. That's the way hearing damage works.

Sometimes people ask about separates meaning the horn without the driver (which I understand can't be done) The horn itself WITH driver can certainly be bought. Arash, you might also contact WC at Panacea Engineering. I know he's currently helping someone get a pair of Jubilee's shipped to them in Singapore!! http://panaceaengineering.com/

This should get you going under $300 Speakers Subwoofer Amplifier Wiring kit If the head unit has no RCA output this one has low level inputs. Amp

that was worth a 12 pack of corona I bet

My reference was intended to be specific to Mike's Khorns in that post as Al's univeral design was used. Actually, many of the threads I've pointed to in earlier posts and here may substantiate most of your ovbservations, I just wanted to leave my personal views and bias out of the thread. My point was that the mods on Mike's speakers have a level of engineering and acceptance no matter who performs the mods and many comments may come accross to that casual reader as bashing the guy's speakers (which I believe is inaccurate) and I'm trying to show why we have to be specific as we write. John Warren's original JBL tweeter modification. http://community.klipsch.com/forums/t/40135.aspx?PageIndex=1 John Warren suggests the Beyma CP25 and Al appears to take the first plunge. http://community.klipsch.com/forums/p/15166/117718.aspx#117718 One of the earliest threads on AlK crossovers http://community.klipsch.com/forums/t/31.aspx?PageIndex=1 Intro of the extreme-slope http://forums.klipsch.com/forums/p/32882/283412.aspx#283412 early reference to Bruce Edgar rectangular wood horn and the Martinelli wood horn for Klipsch. http://community.klipsch.com/forums/t/24989.aspx?PageIndex=1 I suspect that people were altering Khorns long before any of the wood horn sellers here. http://community.klipsch.com/forums/t/2.aspx?PageIndex=1 Klipsch article regarding Tractrix horn http://community.klipsch.com/forums/p/44621/419962.aspx#419962 Al's first hint that he has a Tractrix horn for his kits http://community.klipsch.com/forums/p/48158/455731.aspx#455731 Al introduces his first Tractrix horn for the Belle & Khorn (page 5 Al partners with Martinelli, first prototype on page 8) http://community.klipsch.com/forums/t/51623.aspx?PageIndex=1

Greg's webite nauseates me. He doesn't give credit to anyone. He doesn't give credit to Klipsch, Al, or any of the others that helped him develop these products. He would have you think they were develped in a vacuum with just his own genius at work. Rounding the back of a LaScala or Belle type speaker is nice, but it's still a PWK horn. The 2" Tractrix horn was developed by Al and Bill Martinelli. Greg got a shite-ton of help while building his first pair. I think the thread is like thirty pages long. I remember he mucked up the throat and had to go back and fill in what he had carved out. John Warren first suggested the use of the Beyma tweeter, but his preferred choice was the JBL 2404. I suppose it's possible that Al discovered it on his own and I have that wrong. The BMS was first used in coaxial form by Dana Moore years ago. When Greg asked me in a phone conversation if there was a suitable 2" drop-in replacement compression driver for the Klipschorn, I told him there were two that I knew about but that I would use the BMS. Crossover networks are of Al Klappenberger design for which he has several engineered models for different design goals. I don't believe that's true. Al terminated his business relationship with Greg and gave him a cease and desist order. He allowed him to build and sell the remaining kits he had bought, but that's it. You don't need Greg. You can have Dave Harris build you a nicer horn, buy the mid-drivers direct from Assistance Audio, the Beyma tweeters from usspeaker, and have Al, Bob, or myself build you a proper crossover. You can do this for a hell of a lot less than $15K. You can probably find a local cabinet shop to do the back of your Klipschorns. If there is one thing around here that doesn't involve rocket science, that would be it.

It's the truth, a fact, negative or positive is how you take it. They could sound GREAT but it's still a fact it just very pretty high priced DIY. I don't know the man and have no doubt they sound as described, but it does not change the facts. Please keep in mind that Mike is referring to a specific upgrade and “blanket statements” may not be the best way to help the OP understand the pros and cons of the upgrade Mike is referencing. [ ] I would agree that regarding the three choices the OP has outlined the engineering and test conditions generally lag behind the capabilities of JBL and Klipsch. However, in reference to the upgraded work that Mike is mentioning you have the initial engineering of Klipsch (i.e. Khorn box, driver parameters, etc.) along with many measurements of the BMS driver/tractrix horn combination taken, at various times for various agendas, by JWC, Al Klappenberger, Bob Crites and John Warren. Crossover networks are of Al Klappenberger design for which he has several engineered models for different design goals. Layer in that Greg is a true craftsman (i.e. somewhat fussy with tolerances and consistency) when it comes to building those tractrix horns (developed from the Bruce Edgar formulas) along with the initial demo-listening program where many heard the combination on their own Khorns, it seems that one could argue that many people could conclude that there was sufficient engineering for this upgrade and the results are very predictable. I believe that the method to close the backs of Mike’s Khorns is consistent in keeping the proper flair of the bass horn. Here are a few threads from a quick archeological dig through the ancient threads for the OP to evaluate that also have good comedy by some good old timers. [8-|] The Trachorn 400 versus the V-Trac https://community.klipsch.com/index.php?/topic/105481-the-trachorn-400-versus-the-v-trac/ "V-Trac" Midrange Horn Upgrade for Khorns (the linked page is the first page where you can find JWC and Bob Crites measurements) https://community.klipsch.com/index.php?/topic/103574-v-trac-midrange-horn-upgrade-for-khorns/page-7?hl=v-trac North Reading Engineering measurements http://www.northreadingeng.com/KV1/KV1.html v-trac demo impressions https://community.klipsch.com/index.php?/topic/105135-v-trac-demo-impressions/ Edit: updated links for the new forum upgrade

If all counted up 26 cut boards actually.... LOTS of screws..... measure the wood 2 times (Or more) and cut once.. OK, sometimes twice, and sand too. The below is what we got out of the Baltic Birch 3/4" 4' x 8' sheet (except for the 1" x 1" top and bottom braces 12"- 14" in length. 4 sides.... 2 backs 4 top braces.. (1" by 1" Width squares... looking at the end where the length of them sideways is approx 12" - 14" in length.) 8 middle ones (these make the backs stiff 3/4" BB) 4 bottoms (We used the 3/4" BB to stop Bass from going into your carpet/ floor.) 4 bottom braces (Again the 1"x1" the length of the 4 side bottoms) Ben - But that's the thing.... if it was this easy, sooooo many people would have done this mod. So I'm skeptical. I.e.; is this really a simple mod that people poo-poo'd and ignored with passivity for 50-60 years? Or.... did they take the literature (min. 48" wall) as gospel? Sort of like desires to keep raw birch plywood as if a rare wood? I am sure I am not the first. It takes a little faith too. I heard the 60th anniversary ones and they were 4-8 inches out from the corners... The 48" came from a 4' x 8' piece of plywood cut in half.. 8 feet is 96" cut in half is 48" hmmm Yes you still need the extension of the walls but like Roy, Myself, and others have pointed out 12" or less into that corner.. so again you can tow them out some ...NOW you have them sound like they were intended. They will use the wall from that point on after this mod to complete the lower octives but your not required to have them now snuggly fit in that corner. I provide here, the diagram most have seen on what the wall should be too.. I point out it will probbaly vibrate and flex as well, but be far better than your wall you probbaly have now. The optimum might be just 2x4's stacked screwed into one another the height of your bass bin all together... so 48" out of 2 x 4's..LOL The problem STILL will be you will have to somehow screw your K horn into that wall of 2 x 4 's to form a perfect seal? So, besides perhaps 100 lbs or more of wood..as the perfect new back wall for your K horns LOL.. Your, perhaps, still going to have not a 100% closed seal to it?