It's one of those things. I researched, did some listening (not in my home), lusted after the M2s, and the 4367, didn't do anything.
Wanting to get down to one (main) system had me swapping between speakers to decide which ones to keep. In the end, none of my speakers really were "perfect" for me and my music, so back to the question whether I should open my wallet and let the Presidents squint from being in the dark so long, ...
I have listened to many speakers. The ones that typically rattle me are hard-dome tweeter makes. I also have found large woofers to sound more natural in the LF. So horns (even if metal diaphragms) have won my heart and ears with their ability to reveal dynamic presentations and finite detail at the same time. Heils do too, and some electrostats, but to date I really haven't heard anything that can blend well with the LF of a large woofer. Love large woofers' natural bass (in a large enough cabinet) but none tended to be perfectly mated to their MF/HF. It seems that most speakers have strength in one or the other, but not both. Also very low volume vs high-SPL dynamic music, some designs do one or the other well.
So the challenge was to find a 2-way that can play low SPLs with detail and without losing soundstage, but also play high SPLs without any loss in musical presentation. Then, I want something that blends so well between the HF/MF/LF that you don't lose anything at the transition frequency. Last, I want to have the system go 30Hz or below so I don't
need a subwoofer for music.
Oh, and I wanted either sealed, or front port (so they're easy to place in a room), with good dispersion and good off-axis response (for multiple listeners), bi-amp capability (just in case), and I wanted them to be new.
So how are they? You might be sorry you asked already
@markd51
They are large, they are heavy, and they don't look particularly sexy compared to some of the Sonus-Faber, Focal, B&W, nor even the other JBL / Synergy speakers. They look somewhat like a walnut mini-fridge or maybe even a commercial wastebasket. Sorry JBL, but sexy they're not so for the money I certainly could have gotten more bragging miles elsewhere. They are however built like the proverbial "brick ****-house" though, if there's ever someone shooting at me I'll hide behind the JBLs.
But they sound soooo good. I have been sitting with them for between 3-5 hours/day, and they have played many more hours to break-in. They have played soft, and they haves sucked 300+ watts of music peaks.
I was afraid they'd be bass-shy compared to the 2235Hs, they're not. The bass is smooth, completely realistic, and ample. Mids are neutral, voices a bit abrasive when they actually are abrasive singers, no Model Nineteen softening of the music there. Highs are sizzling and crisp, bells so sweet and even some feedback in a Michael Buble recording I've never heard before, but no shrillness. I really can find nothing wrong with these speakers other than they're not Ferrari red with eyeball tweeters on top screaming out for attention (yes, I kind of do like obnoxious speakers but not enough to buy them for their looks) saying "look at me, I cost lots of money, envy my owner". Meh, conspicuous consumption is far over-rated anyway.
The MC452 is neutral, so neutral. So are the 4367s. I am currently running with an older (C38) preamp but it is very quiet, set flat. My DSP is out of the loop, no room equalization / room correction (yet). No measurements yet either (probably this weekend).
Running the MC240, and also the Model 600 I feel that the tube amps add a bit of bass, maybe a bit of "warmth". I can hear a different sound character to the MC240 where it isn't as bright as the 452. I was running both on the 8 Ohm taps (although JBL calls these 6 Ohm Nominal there is only one excursioin below 8 Ohms in the bass region, so I'be been running them there). The Model 600 amp I ran on the 4 Ohm taps, then back to the 452 on the 4 Ohm taps for the first time, I really didn't notice a difference. However, the time between them would make it difficult to really judge whether the taps make a difference as some people claim IMO. Neither tube amp (to me) had the imaging depth of the MC452, and the center wasn't as pinpoint accurate nor as stable. Clearly (to me) the solid-state amp has the edge there.
Like most speakers, 95% plus of the time I'm listening with peaks under 30W, and most of that with peaks under 5W. The tubes are not lacking at all there (other than the perceived extra warmth, and increased & softer bass). But, I planned to keep these on the 452, and I feel that the tighter bass and overall better imaging makes that decision easy.
I also hauled out the Altec Model Nineteens again, the JBL L300As, and the ESS AMT Monitors to get a complete picture and reassure myself that this is the right direction. All of these "flat" speakers have their own characteristics in the room, and without an orchestra or vocalist in the room I just need to trust that the accuracy is there. This is the problem with such an audition: just how accurate is one's memory as to exact pitch, tonal balance, coloration, soundstage from the last live performance? It isn't. Beside that, what venue were you in when you last heard the artist? That too colors the sound. I stopped doing home A/B testing some years ago for the simple reason that I am at least smart enough to know that I DON'T know exactly which is perfectly correct, and herefore the one that sounds best in the room will win.
The 4367s win, as does the MC452. Yes I want to go back and listen to the MC1.25KWs w/ Sonus Faber Aida IIs to see if I still like that combination, ... but it's well beyond my budget anyway so it's only another reference point.
If I could have put the Model Nineteens together with the L300As to get the best of both, or even be able to swap between them easily I might never have made the change, Lord knows I can use the money elsewhere. The end result is that I am very happy wth the way these sound, and everything about them. The added warmth from the vintage tubes is quite apparent to me on these speakers, but that is what my wife desires anyway so that's good as well.
Back to shoveling the front walk.