LOOOOOOOL! Sorry. Nothing subtle about v4 over v2. EVERYTHING is better. Lows, mids, highs, microdynamics, macrodynamics, transient response, imaging, soundstage. I have had the benefit of comparing them right in my home for months and months.

I am waiting for M2 on walls and bookshelves. I'll be comparing them with M3, M5, M50, M100, active LFR. It's quite possible that with my subs, they may be similarly good to M5s for music and movies.

That could save you some money for better sound. M2, 160 and twin 500s maybe.

House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated