USD, 8260 monitors for under $6,000 vs an 8341+subs system for $9k (I'd mentally probably do the 10" subs to feel like I was getting something on par or better which puts the second system close to 2x the price) . Closer than I though going with 8" subs, and yeah the LSE I'm sure is a great port, but the audible difference ports make is usually allowing air to move without chuffing, which the flared ports on the 8260 also does well. the LSE is more or less a streched out version of the ports that Genelec uses on their monitors, flared at both ends of the constricted space, but in the case of the LSE port, it's a larger surface area.
I'm curious what you mean about losing coaxial advantages. Are you talking about the dual woofers in the 83x1 range being acoustically coaxial and allowing the directivity to be controlled at lower frequencies?
The dispersion on the 8260 is similar to The Ones, as it's their progenitor, and measurements show the dispersion to be close. The 8361 seems to be a little closer to 45 degrees off axis before it's 3dB down, and the 8260 and 8351 are similarly close to the 30 degree mark.
https://assets.ctfassets.net/4zjnzn...f191cc9/genelec_8240_8250_8351_8260_opman.pdf
Also, the dispersion of the 8260 remains narrower than the 8341. The 8260 goes down around 400hz before it's dispersion is greater than 3dB 60 degrees off axis. The 8341 goes to about 700hz doing the same thing, so I'm not sure about the dual woofers controlling directivity better which is what I thought one of the advantages was, but now it looks like it's purely baffle size, as the 8351 and 8361 seem to be the only ones that do directivity better than the 8260.
I wish I had a plot for the JBL M2 dispersion. Wouldn't be surprised if Genelec beat them at their own game, and with 1/3 of the physical volume too.
Not bashing the Ones, as I think they are well engineered, but I think it's important to recognize where they are better (more controlled directivity in the larger models, and better vertical dispersion,) vs where they aren't quite as good, (bass extension, and dispersion in the models that are smaller than the 8260.)
Also, hiss: I've heard the class D in the 8240, and they did a really good job getting rid of hiss. Anyone with "The Ones" know if they hiss even less? I should dig for the self noise measurements, as those might show it, but another concern with the newer 83x1a models is the larger, perhaps more efficient tweeter having a bit more hiss, which to me isn't worth it because the "advantage" of the larger tweeter is loudness, and I don't play any speakers at max volume or even close unless I unlock them to show off to friends.