I'll start off my comments here by saying that I absolutely love my LX-44,matter fo fact I enjoy them enough to own two pairs of them.
Also own 2 pair of LX-22 (2 way) and a pair of LXE-330 (also 2 way).
So yeah I'm a fan of the JBL LX series speakers as SOP,for what they cost ask me they're a pretty dang good speaker.
To find something similar new today would take something like the Bryston Mini T and those typically cost between $3000.00 - $4000.00.
Now no doubt the Mini T would win against the JBL LX-44 SQ wise,but they
should for what they cost vs. what the LX-44 cost me.
But the LX-44 are still a very good sounding speaker
to me,and they were well within my budget,and the Bryston Mini T are'nt,so it's simple as that.
Also I heard something like "...Yamaha and JBL LX44....well, no surprise it sounds sharp...
Now w/my comments above being said,this ^^^^ is an accurate slice of audio wisdom.
So ask me this guy is much closer to the truth vs. the other salesman that said all vintage speakers sound "agitated".
This has to do with what most call "synergy" as the Yamaha receiver is known for having a "clean / clinical" sound signature.
And paired with those LX-44's 026Ti tweeters such a rig may indeed be a bit "hot" for many listeners ears,often leading to listening fatigue.
As one member mentioned some folks just cant listen to Ti tweeters & enjoy them,same as some folks dont enjoy horns,yadda,yadda,yadda.
Me I'm fine with the Ti tweeters,I also have some AR TSW-410 that are 3 ways w/a Ti tweeter and I love those too.
But I'm also an EQ user so I can easily take the edge off the high end if it's sounds a bt "hot" to my ears.
Which is another thing that not everyone is willing to do,but I digress on that point for now.
Now pair the LX-44 with something known to be on the "warm" side of things (lets say Sansui as an example) and the LX-44 will typically sound more balanced.
A fairer "old vs. new" comparison for the LX-44 would something like my Sony SS-B3000 speakers,and the JBL LX-44 absolutely kill those no sweat.
I bought those Sony new just as some temporary speakers as they were'nt too expensive,but the differences are like night & day construction wise.
Cabinets on the JBL are FAR more robust,significantly thicker MDF,and the LX-44 are braced fairly well,even if they are covered in vinyl.
Cabinets on the Sonys are pretty much a joke comparitively speaking,thinner,no bracing,no insulation,not much else either.
And the Sony dont even have a true crossover,just some "bass blocker" caps on the mids/tweeters and the woofer runs full range.
So it's all about one's perspective really,there's simply no way to make any apples-2-oranges comparison a fair one.
In that part of the world I would probably be looking for some vintage Canton speakers as those are known to pair well with vintage Yamaha gear.
Unless I had ample money burning a whole in my pocket,then I'd probably be looking to pick up some Harbeth / ATC / PMC speakers.
My point,,,I dunno really LOL,,,just throwing out some food for thought I guess ???
FWIW
Bret P.