Hi
A bit of a rambling...
From what I have been learning the past few years, very much thanks to ASR, a the supposed level of the Hyperion, 8351 + W371, M2, arguably Salon 2 or F328BE, you are in the area of preferences not of sheer number-based performance. I have no doubt that in term of sheer SPL the Hyperion will be on top of them all from 20 to 20,000 Hz.. Speaking for myself 95 dB is very loud.. I tried once to push my system to some peaks of 112 dB at the LP and my ears rung for days.. although the exposure was less than a minute...
Thus comes presentation... soundstage.. scale... "bigness", etc.. And aesthetics where the Hyerion loses for , closely followed by the M2 which I find singularly ugly... and at this point there is no clear measurements for these impressions.
To conclude.
Any of the aforementioned speakers represent the SOTA. IMO. Physics favor the W371A + 8351 approach in a 2-channel configuration, it can do cardioid bass. If I were to find the courage to convince myself to spend $30 K, at this point in time, that is the 2-channel system I would acquire. Then again a pair of F328 BE with 4 SVS or Ryhtmik or Monoprice or HU or ... subwoofers, controlled by a miniDSP 2x4 and linearized with MSO (Multi Subeofer Optimizer) + some Hypex mega-amp + miniDSP SHD or equivalent (are there any?
), is a beguiling proposition for similar budget but may require heavy lifting to make it work as well as the GLM would the Genelec combo... The M2 seems to be a complex beast that may not be as Home-friendly as the others, even the Genelec (8351 + W371) combo ... which I find aesthetically pleasing ... (to each their own).
FWIW. I have only heard the Revel Salon 2 and that, many years ago...
Peace