Are you interested in the new generation of "old school" design loudspeakers?

Interesting, and KLH speakers were good for their time. Henry Kloss went on to Advent as everyone knows. Advent’s were nice as well. For their time.

HOWEVER, take a pair of those speakers and put them next to a similar modern box speaker and you will hear the differences immediately. As for putting them next to Magnepan speakers, well, I will let YOU do that and not try to bias your opinions in any way.

If you enjoy woodworking (I owned a wood business in my day) have at it. It is a lot of fun. If you want accurate speakers, well, you decide for yourself.

Cheers!

If you think about it, just about every new speaker today is just an updated, possibly improved or modified version of an existing design which often is a good thing & are noticeably better. 
 

The last truly innovative designs may be Magneplanars, Apogee full range ribbons & before them the Heil Air Motion Transformer mid range / tweeter. Also DSP, subwoofers too. I love tube amps & horns when done well & enjoy both in my system w/ modern designs with much better comps& drivers than were available  years ago.  

Back in the late 70's, I had a pair of JBL L-166 Horizons that I bought at an employee discount of $500. (about $1700 in 2023 dollars). They were amazing, at the time, being driven by a Sansui AU-717 and other upper end, mainstream source devices. I think my current Revel stand mounts have better definition and imaging, but a sub is needed in place of that 12" JBL Alnico driven woofer. 

What I really miss about those L-166's are those cool, but ugly waffle grills and the beautifully finished walnut veneer cabinets. They were a visual statement that smaller, modern standmounts simply can't match.

When my beloved Snell speakers got swamped in a flood in my lower level listening room, I had to replace them. I needed speakers of reasonable efficiency as I was driving them with Quicksilver 40 watt tube monoblocks.

I was willing to spend $10,000 on speakers and honestly, found no speaker I could live with and enjoy more than the new KLH5s. Designed well, manufactured to a high standard in Asia, I suspect has a lot to do with being able to deliver a speaker like this at such a low price point.

I live in a big city where there are 5 -6 are brick and mortar hifi shops and got to listen to a lot of speakers. Did I hear other speakers that had better pinpoint imaging...Yes. Did I hear other speakers with better detail...yes. Did I hear other speakers that were overall better... yes but at well above the $10,000 price point. Did I hear other speakers that let me sit back and simply enjoy the music and that made for an engaging musical listening experience...mostly No! But these do.

@alvinnir2 +1 ... I can relate. I’ve had the same experience over many years - decades, actually - w my Epi 100 speakers... I recently went shopping and there were speakers $5000, $7000, $9000 that were MAYBE a little better in bass and imaging, but not by THAT much, and not any better, or at least not by much at all, in the treble, and the Epi still move me (and everybody else that hears them) with their charming, smooth, clear and enjoyable sound quality. Enjoy what you have there; those KLH 5 are supposedly something special, as you attest.

After that recent shopping realization, I did end up w the Heresy IV, because they were different than my Epi’s approach, and they were less expensive than the next closest competitor, to my ears, plus they totally look the old-school business, lol.... so that’s it for now, until I move to Arizona (bye bye California, thanks for the money, lol) when I will get a new-school speaker for the main living area: the Q Acoustics Concept 50. That’ll round out the stable, but two out of the three are old-school design and sound more-than just fine.