It figures. It has 800Wrms amps, 177l cabinet volume and is ported. Genelec spec says 123dBSPL burst @1m (100-500Hz). That does seem realistic compared to subwoofers, the 12" (same as the W371 subwoofer driver) Monoprice for example can do 115dB @2m.
For the Salon2 there are some figures here, although the text is somewhat jumbled:
https://www.soundandvision.com/content/revels-salon2-super-speaker-model-page-2
107dB peak in-room at 50Hz is what I read from that, unclear whether that goes for one speaker or a pair.
That is quite impressive, but also quite far from what the W371 will be able to do - or any decently sized modern DSP sub.