Yes, I owned the Super-V's.
The Monoliths will not play as loud as the Super-V's. However depending on the room size will play plenty loud for any music I have tried. The bass section is essentially the same, so will go as low and loud. It really is a full audio bandwidth speaker.
The difference to me is The Monoliths have wider dispersion than I remember the Super-V's having due to the narrower baffle. Also the planars have a very coherent sound that I like more than the Super-V's coax.