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I don't recall there ever being formal tests of those. Basically, it's expensive to ship subs so they rarely get tested. Plus, our sensitivity to inaccuracy is much less in the bass realm so there is a utility argument as well.
Amir says he does not have the setup to test them. IIRC he said he would have to test outside which is not practicle at his location. He did test the Rythmik sub
I think by "this site" the OP is referring to data-bass.com, rather than ASR, just going by the attached picture. Data-bass doesn't seem to have been doing any reviews for over half a decade at this point.
He did for the first few smaller ones a few years back comparing them to one another.
Thing is unless it is the same tester with the same microphone and same methods it is really not a consistent comparison for models across brands and years.