The bottom-line must be that size does matter for the bottom-end (@49Hz/-3dB, @42Hz/-10dB).
they can refer to them however they want, but no studio will ever buy them, maybe they meant the studio apartment? 4" midbass with such extension is only useful in very close nearfield/desktop setups, but it's hard to imagine how they could be properly placed as such
The image shows two speakers for 1998 Yuan though, approximately $275.3. They seem to drop the pro-audio praxis of demanding full price for each additional speaker
To which I might add
Indeed. Making a speaker bigger remains a very cost-effective way of boosting low-frequency output. There is a reason why the smallest models are the most expensive, they have to fight against physics with better driver performance. The only notable outlier is the A4V, which is both relatively expensive and big at the same time.
Which is not really a surprise for a normal 4" midwoofer.
That it arguably is (though it looks like the LP-UNF may do a better job keeping its composure in the lower bass). Woofer electrical linearity still is anything but great (it could do with transitioning to current driving in the low hundreds of Hz), but at least the low crossover is helping mitigate it. There is what may be some sort of buzz at 400 Hz.
I remember seeing the following elac speakers in a Japanese magazine once. They have similar proportions.
These special compact models with a thin aluminum enclosure are continuously offered till today and still produced in Germany, this is the current 30th anniversary version, a design classic in a kind of Bauhaus style:
elac.com
