Dave A

You win and have better humor.

I think it's when you tell your wife you are going to quit buying. Then you get rid of some stuff and find you still have an MCM 1900, a set of KP-450's still waiting to be picked up, three Altec A-7's in various condition to be fixed along with old KP201 and Heresy I sets, a set of 1989 KP250's and KP 301's, a set of KP 115 and 250's. Then you have that set of pristine Chorus I's and the set of Forte II's that need a bit of veneer work. In the next few weeks you are going to get a cabinet saw to make cabinets for a set of Super MWM's and a set of Chorus I's and a set of modified La Scalas because you have some parts sitting around because you bought four beat up La Scalas and only two are worth saving and a set of Chorus parts. Oh and that set of two KP-450 horns and that set of KP-456 horns on the top shelf you are getting woofers for so you can build bass bins after you get done with the pile o KPT-456's you are also buying in a few weeks. That is in between times when you are machining MAHL horn lenses. It is however not an addiction it is a fascination with audio. Right?????

Claude found that the deeper plenum behind the woofer on the Super MWM helped lower the bass according to the software. Are you thinking that I should keep the original size behind the woofer and extend an expanding throat like a mini MWM in front of it? It will have an additional foot to travel and a bigger mouth at that point over the OEM cabinet.

I like the La Scala bass bin for punch and want to try it in conjunction with my larger MAHL tweeter. The lower hz no matter what it is will be welcome. This is an experiment for something I may decide to start building later.

Hi Moray, I figured it would go deeper but not by a whole bunch of hz. Something to do with parts I find I have on hand once again and it is an excuse to make a top section for using my larger MAHL tweeter which will make a big difference. Add the two together and it becomes a worthwhile project. I have those plans and many others but like how bass sounds from MWM's and want more there since I have the space to do so. The MCM 1900's are really remarkable and I want the extra bass the supers would bring to this set.

I won't take you up on your offer to sell the horns under the condition you order some for me at your preferred buyer price. Just the horns I have drivers.

Of course it is Claude, there are priorities after all and thunderous clean bass is at the top of the list.

Kind of sad really. Wonder what the story is behind these.

I thought so and it is an easy way to test with known good components. Have you checked the driver itself with a sweep generator and ohms? Switched one "bad" driver (just the driver and not the horn) to the good 904 to see what happens? If you have a driver problem all the good advice you are getting still won't fix that.

Think Buck Rodgers. Here we have the fore runner to the fabulous Diamond Diaphragm Tweeter in a Solid Billet Machined Aluminum Housing. The B&W bean counters cut the guns off though because it cost to much to duplicate those. Remember folks PLEASE do not touch our $1,000.00 Diamond Tweeter Diaphragms.

Emile these have a superb reputation so there is something missing. Have you thought about trying to find a KPT-904 crossover and just going that route? It could eliminate a lot of variables and give you a basic idea of what it should sound like. You can always dial it in more later with the other stuff once you know the basic components are good.

You might be right. Sold a set of KP250II's and 480's + a nice set of KP-301II's to a guy who had been to a B&W outlet. He thought those B&W's were hysterically bad compared to what he bought. Then I mentioned I might be getting some KPT-456's in and they were a bit better than the KP-450's he had just heard. He said I will take a set when they get in and his son will get the other stuff. Word is getting out there This guy researched and bypassed entirely the process most of us go though working up the food chain from vintage veneer to Pro stuff. I could reluctantly handle sawdust motorboards and would retrofit the horn screws with T-nuts and I would imagine the woofer has them already. Of course Klipsch literature further states that since these can be flown all the rest of it is made with 7 ply Birch for some strange reason. I notice that they are going with a lower ply count than Baltic Birch so I expect the bean counters decided that cheaper birch plywood was OK.

I have been down that road before. Bought a Husqvarna rancher chainsaw supposed to be better than straight home owner and cut up to 24". Worked me like a dog. Go back and get what the loggers use at twice the price for the same 24" bar capacity and man. It was heavier but it cut twice as fast and at the end of the day wore you out much less. I appreciate the tip on this and had no idea a saw like this was out there.

The very best Klipsch for detailed audiophile experience is the better Pro stuff. What Westcoastdrums said is right. Cornwalls, La Scalas and KHorns are great but the better Pro is superior. Don't take my word for it either you deserve to go and find out in person but don't say you weren't warned.

I am leaning towards the table saw and a jig right now. I like the idea of the Skilsaw but no track for it and a mess when done. That 8.25" blade would be the way to go and even with a track, if I could find one, has plenty of capacity. The Unisaw I found has a nice Jet 3hp dust vacuum I can tie right into the base and dust remediation is easy. But I might get that Skilsaw anyway just for the Super MWM as it will work fine on those big pieces with a guide.

????????????????? That Skilsaw sounds awesome but I can't find a track for it. Wondering if I can mill one out of 3/8 thick aluminum. Have to go look at some and think about it. Certainly the cheapest way to get that angle but messy in my shop. I also like what you say Bruce and have to believe the cabinet saw would produce more consistent and easier cuts once the jig is set up. Plus you buy it right when your projects are all done (like that will happen right?) you can sell it for what you have in it. There is a nice Delta Platinum Unisaw with a Jet dust extractor near by and the idea of not having sawdust everywhere appeals to me.

I would like to talk to some of you who have built La Scalas to find out how you accurately cut those 30 and 60 and other degree angles. I intend to get a cabinet or Unisaw soon to build out some of these projects I have in mind but before I do need to find out what are the best tools for doing so. I prefer to buy just what I need and not things I don't need. Is the best way to cut to size and then use a router table for the bevel? Youtube has videos but none I have found yet convince me they are the best way.

😴

It is amusing to see people jump when the quiet lead in becomes thundering bass or drums. I will have to try the Overture and see about that. It is a good thing I live way out in the country so I can do what I want.

Moray on my Kp-450's they had no bracing and on the KP-456's they ran a 2 x 4 from the motorboard between the woofers to the back side and they evidently had a resonance problem with the 450's. I had intended to do the same thing with the Chorus build but are you suggesting more? Do you have any build dimensions for your oversize cabinet?

Don't deflect. Quality of construction was my theme here + engineering to make the sound to a certain level of quality as cheaply as possible. Never said they did not sound good although all the Cornwalls I have heard sound boxy to me compared to Chorus. That is a personal opinion many do not share. All of my current speakers are stock Klipsch by the way and Baltic Birch so I know they can build them right when they want to. My biggest customer for many years was a restaurant chain called O'Charleys. The genius who started it was forced out by an MBA/CPA dude who became the new CEO and saw nothing but cost containment. So he started hacking and whacking and when they finally got around to removing the quality ingredients from their commissaries products the end result was almost bankruptcy and they went from 600+ stores down to somewhat over 200. So yes unless there is someone who remembers what made the product great to keep a tight rein on the guy who only can see dollars sans sense they are bad news. CPAs as leaders and primary decision makers are bad news equaled only by MBA's which seem to make money by exporting jobs to other countries away from their "expensive" domestic work force which is then still somehow expected to continue purchasing from the hollowed out MBA dudes outfit. So yes as hired help they are needed but as leaders and or primary decision makers they are constant peril to all involved except themselves. Sorry for the thread morph OP but it happens. In spite of my derogatory sawdust comments those Cornwalls will sound better than anything else at that price point from other companies but there is more than one way there.

Precisely. And YES bean counters do take advantage of customers even $40,000 ones who are buying prestige and ego more than superior construction. They pinch every penny until it squeals. One of the reasons I went purely Pro for my own use is sound quality and the other is, although pretty far down the list from sound quality, cabinet quality. Hmmmmm, really? Good cabinet makers pick good material to work with and decent tools too I might add and avoid all those perils you have subjected yourself to. We agree on one thing namely "Still, I can't help but reply to the above"

Neck and neck with the capacitor ones ;D

OK you win with logic that overwhelms my personal experience and so I concede the validity of inferior material to be superior now and tip my hat to you. I am humbly chastened with the list of people you have used as reference material and your limited personal experience to be far above mine and more valid.

OK did you read why I say this? You quoted it and I hardly think why I dislike MDF was left out. It does not matter to me one iota that many high dollar speaker builders get cheap on their customers I know what I see and deal with when I have to fix the end result in the used speaker market..