Thats exactly what your said.
You are basing the quality of speaker on the size of the drivers and making assumptions about how its compromised which you can't do. Every design decision is a compromise; if your monitors are using an 8" woofer crossed over to a small dome tweeter thats pretty big compromise right there as getting a tweeter that can play low enough to be crossed over to driver that big is a big ask, and getting a woofer that big to play cleanly that high is an equally big ask. Also there is going to be phase and dispersion issues with a speaker like that (which is also physics), all for $250 per speaker which considering an 8" woofer isn't much.
The Monolith is a MTM design so both 4" woofers would be covering the same range and sharing the same cabinet volume with passive radiator, there would be no reason to build an internal space for each one. The other advantage of using small woofers in a arrangement like this (aside from the small footprint) is that it keeps the center to center spacing between the tweeter and woofers small so this will be far more friendly to cramped spaces than a traditional 6"+ monitor is going to be which for the intended market (people with a average desk vs. carefully planned studio setup) makes sense.
Point is Monolith made some good design decisions here, and using small drivers does not equal a compromised design. How good it is will remain unknown until someone actually reviews it so wait till then before talking about how compromised it is.
You're still making assumptions. At no point have I implied driver size is related to sound quality - that's
entirely on you.
I merely stated that my own desktop setup is 8" monitors, as most of the best-performing monitors in the ~$500/pair price range test and review (multiple publications/sites) best in their 8" variant, such as the HS8 or LSR 308.
5"- 8" active monitors are
unanimously the choice for pretty much any professional recording studio worth a damn, and those who care about quality know that DSP for room correction is just as important as the monitors themselves. Noaudiophile.com is vehemently anti-MTM as a sole solution and deep-dives into the physics of
why in painstaking and interesting detail. His specialty is in creating custom DSP curves to fix compromised designs so you can
actually see from how many separate EQ filters and pass/blcok DSP compensation is needed. Hell, there are some really interesting reads on his site about trying to tame nightmare retro MTM classics like the Bose 901 with his modern digital DSP expertise. He can fix them with experience and (expensive) modern EQ tech, but that's not something you can expect on any MTM, especially not anything at this price range.
I do happen to have a half-decent MTM using 3" kevlar and 1" silk dome in my HT setup and it's great but utterly incomplete and non-linear in isolation. I would call that compromised.
My sub is dual 8" instead of a 12" due to size constraints and it's also compromised. My desktop setup - 8" monitors, CA USB DAC, a JBL patch/mixer, and an AptX bluetooth module basically repeat the functionality of this Monoprice setup but using higher-quality parts with higher-quality, more expensive materials.
Even without seeing a review or listening to these myself, I know enough about mid-range audio gear to see two telltale signs of cheap and nasty:
- Poly drivers are cheap. They can still sound decent, but they're exclusively used in sub-$200 speakers from what I can tell. My Q-Acoustics stuff use polymer drivers on the rear surrounds and they were £80, not $500. M-Audio, KRK, Mackie all also use polymer drivers, but only in their entry-level "multimedia" products, not audiophile or pro-grade stuff.
- The passive radiator on the right speaker is also on the left, because Monoprice were too cheap to make a dedicated left and right cabinet. This ABSOLUTELY affects the balance, room-modes, and makes correction of such a setup a nightmare. Not impossible, but almost certainly not what most buyers will want to waste a day doing.
Finally, and perhaps the most damning criticism I have of MTM setups is that they are bad for nearfield desktop listening when this large, because the acoustic lobing from having two mid drivers doing the exact same thing per channel will give you some dramatically different sound even if you move your head a only a couple of inches either way. For 4" MTM, the lobing phenomenon effectively makes stable frequency response impossible withing a 4-5' distance of each unit. The reason they're usually reserved for floorstanding speakers is no coincidence, it's because you're not going to be using floorstanding speakers for nearfield monitoring!