Edgar

With the current cold snap, I wouldn't be surprised if someone pulled the plug in order to plug-in a space heater.

Anyone seen a real explanation for the outage, and not just conspiracy theories? Denial-of-service attack? Web hosting service failed to pay the electric bill? Hard drive crash? Somebody tripped over the power cord? Sunspot activity? Zombie apocalypse? Alien insurrection?

CornTALL?

I suspect that it can be beneficial for drivers that require a lot of headroom, such as woofers or subwoofers. But it's only conjecture on my part.

In a typical Class-AB amplifier, the highest distortion is at the lowest power levels. So if your 200 Watt amp is always operating under 1 Watt, you're experiencing more distortion than you have to. https://community.klipsch.com/index.php?/topic/226972-driving-your-speakers-with-more-power-than-they-need/&do=findComment&comment=2847532

I worked-up this derivation quickly yesterday. If there are any errors then somebody please inform me (politely!) and I will correct them. Derivation of Cutoff Frequency.pdf

From https://www.grc.com/acoustics/an-introduction-to-horn-theory.pdf, and assuming that you're talking about an exponential horn: Given that k = 2pi*f/c, from just below equation (2), and m defined as in the paragraph just below equation (8), the text below equation (9) indicates that cutoff frequency f = m*c/4pi. The rest is left as an exercise for the student.

@gigantic, why not Titebond III? I've found that III gives a slightly longer working time to get everything aligned and clamped.

Properly applied, "plain ol' yellow glue" (Titebond, Elmer's Wood Glue, etc.) will be stronger than the wood it's attached to.

Here's a hopeful thought: Perhaps the new owners will allow the return of the Modifications subforum.

In my 40+ year career I saw it happen multiple times: The CEO or the BOD decide that they want to enter a new market, so they buy their way into it. In cases where there was an obvious fit between their existing markets and the new, it took a while (and a lot of pain and suffering) but they were ultimately successful. In cases where that fit was not so obvious, they either ended-up selling-off the misfit business segment, or abandoning it. And it didn't take a genius or a clairvoyant to tell when the fit was obvious, and when it was not.

I was aware of that, but I don't think that it was otherwise common knowledge. And I've been trying to think of another market where such a ratio also occurs -- selling between 20 and 100 of a company's mainstream product for every one of their premium product. Perhaps Chevrolet sells 100 Malibus for every Corvette? I don't know. But it is a sobering statistic.

Non-Heritage Klipsch speakers remain some of the top-selling worldwide (if you don't count "smart speakers" and similar low-fidelity items): https://www.globalbrandsmagazine.com/top-10-speaker-brands/, so I wouldn't expect Klipsch to be "disappeared". Some companies keep traditional products around, in some cases even though they contribute little or nothing to their profits, simply because they represent the company's "roots". The Klipsch Heritage line, and the Forums, might be just such items.

To trust measurement over listening is certainly your prerogative.

In summary: the Cornwall IV lacks sensitivity, has poor directivity, uses the wrong crossover slopes, has too much distortion, insufficient dynamic range, unstable impedance, an unrefined horn, dips in the response, and an inferior woofer. Thus there is NO WAY that it can possibly sound as outstandingly good as it does.