This is a decent speaker for $250usd @the clearance/deep discount price.
The crossover has nice elements for the $250 price point and it looks like attention was paid to achieve some decent performance.
This is not a great $570 speaker.
From those LX-2 images, that stamped steel basket, assembly and cone are passable, though it does look like a heavily cost limited choice. Some other models around this price have much beefier motor structures and even cast baskets.
The often <$300usd JBL 530 uses a very robust cast basket 5" driver. It weighs 3lbs 9.3oz (1624g) (which is about the same as the 6.5" in the $2k Focal Aria 906 @ 3lbs 10oz (1645g). )
In any case, weight is one thing, the driver here might sound great.
The tweeter is a $1 soft dome button tweeter. What a cheap little thing. Probably could not get anything cheaper. Still one can do wonders with one, the JBL 305p and A130 that were mentioned also use similar designed tweets so a dirt cheap solution can work --- especially when a waveguide is used as it helps in several ways.
Enclosure looks fine for the price, I have seen much more expensive speakers that were not built better, and even with lower build quality.
If one wanted to lessen the 1khz port resonance, i think it would be a good idea to replace this dampening material with something heavier.
Does anyone have experience with that and can give a hint how to effectively do it?
The woofer is stamped metal, which is to be expected in this price range. The motor has two magnets.
Is this to get more magnetic flux out of it without using pricier rare earth magnetic materials?
It is a bucking magnet.
These used to be almost universally common as they were used to reduce magnetic disturbances around the speaker back in the cathode ray home theater/desktop days.
They can also be used to tweak driver parameters as it does change them. Possibly/probabily this is an off the shelf driver that Mission added that magnet to in order to get the specs they wanted for this design. Lots of speakers/drivers still use these for this reason.
With the fill, you can play around. 1-1.2khz is not impossibly hard to absorb. (lower gets hard fast in a small box) It is likely a much higher peak when the cab is unlined. Fiberglass is what is usually used when you want a no holds barred approach but then you deal with that material. Some DIY folks use Eco Core
https://www.acoustimac.com/acoustic...tion/eco-core-acoustic-insulation/ecoinsul422 I haven't tried it yet but keep meaning to order.
Really the peak is narrow, on the backside and isn't causing a very large issue in the frequency response. I wouldn't bother with it.
