glens

Another factor in noticeability of break-in, I'd guess, is if/how they were put through their paces between assembly and packaging at the factory.

I'm pretty sure there's a little more to it (in terms of the crossover) than "will a different driver of the same nominal impedance mount the same." Perhaps it'll be okay, but maybe not so ideal. But who knows, without trying, and measuring, and listening...

Peeps who live on gravel roads should buy vehicles the color of the gravel, too.

Yep.

I'm sure they'd interchange just fine if need be, but the taper/profile of the narrow sides sure looks a bit different.

Yes.

The threaded insert appears to be molded in on one, pressed in on the other; look closely at the narrow-side profiles; and the screw head interfaces. Apart from the flange cutout...

While they appear quite similar, some differences stand right out.

Still grinning at the terminology...

I wonder how YouTube determines what constitutes a view; is it required to be played end to end, at normal speed, within a browser or an app, and what about a multitude of compromised Windows boxes robotically fetching the video but doing nothing with it "on location"? Some things worthy of consideration, I'd guess...

As large a horn as can be fitted has got to be a benefit. I'm rather new to the Klipsch scene after being unimpressed decades ago (though I've always reserved a "like" for the "idea" of the LaScala!). I'm an elated owner of a pair of Forte III now, though. The wimpy little Heresy mid horn in the Cornwall III left me entirely uninterested. Were I in the market at this time I'm thinking the extra $ for the Cornwall IV would be justifiable over the Fortes. If room for them were available... Likely the Forte III would still win out over the Heresy IV IMO, since they (still?) occupy the same floor space.

I'd surmise that compromised seals would factor in only to the extent of the compromise. On average the to and fro have got to be about equal, so "pumping" to an average position different from "normal" shouldn't be a problem. So long as there are no audible cues that the seals have failed it should remain a non-issue. But you certainly bring up a valid point. At any rate, the few moments I auditioned the sample left me unimpressed. Isn't it nice that there's so much music available to cover the range of admiration?

Definitely an issue with bass reflex boxes, likely similar with passive radiators; but a sealed box, especially a smaller one, presents very much less of a problem in this regard.

The assembly is the driver and the horn connected together from where I'm standing. I guess if the horn does specific things with the pattern it might could be thought of as a "lens horn" but that's a real stretch because all horns have dispersion characteristics. Can you think of a situation where a lens is used other than to manipulate the focus or transmission of something which already exists (as in fully formed)? Really, I'll start a thread for this maybe some time yet this coming week.

Great call!

MWMs / 402s behind fabric drops with Bose 901s painted on them. There's your aesthetics!

I believe he was merely iterating through the alphabet with successive model designations, not using the letters as a form of descriptive shorthand. At any rate, I've been contemplating a new thread exploring the relatively recent use of "lens" for "horn" anyway, and was prompted to bring it up in this thread instead, for some forgotten reason (probably related to whiskey). I do recall that performing an Internet search for the question "is an acoustic horn a lens?" returns a couple of sales listings and content from this very forum site. Apart from that, anything actually technically-oriented is almost completely information about devices (lenses) to control dispersion of sound waves - placed in front of the mouths of circular horns. This whole thing was never intended as a thread-crap, and as the maker you're entitled to call them whatever you want. I was merely seeking some history of the novel nomenclature "horn lens" (or even "lens" by itself) referring to just horns. It would appear upon quite casual investigation that it's source is primarily some few visitors to this very site, which is interesting if true. ------ That's a lovely chess set!

Yes, as I'd said. Transformers come in a wide variety of configurations, one of which is a multiple-tapped single winding.

I fetched a copy of LTSpice to play with in a windowed instance of W98 last night myself because I want to perform the analysis I requested earlier. That linked article doesn't pertain in this case since there is only one winding in your transformer.

That's what I'd guessed. So really what we have here is MAH and MWH. I'll leave it at that...

Absolutely. In basic terms the only difference between "auto" (single, or "alone") winding transformers and two-winding transformers is the latter provides electrical isolation between the primary and secondary circuits. You can divide or multiply voltage with either.

What does "MAHL" stand for?

Not so many that I've noticed; rather more just a handful. I've never before this site encountered the term "horn lens" apart from the acoustic lenses for horns which (at least) JBL used back in the '70s. But if a horn is a lens, then it's especially illogical to call it a "horn lens". Might as well call it a horn horn or a lens lens! I've wondered about the derivation of MAHL anyway. Maybe "machined aluminum horn lens" or something? If that's the case, you beautiful creations in wood couldn't rightfully be MAHLs anyway, right?

I see the use of (low-value) bypass caps being espoused all over the place, with description of how they alter the sound, yet my logical thought process leads me to believe the described results can only be imagined. The low values only allow current to flow in any meaningful way at frequencies much too high to possibly create the effects usually described. Who can justify the discrepancy?

I don't get it either. I made a fair amount of money working on/with, and testing, many kinds of transformers from feeder substations to plant distribution. There are many winding configurations, but an autoformer is still just a transformer.