Sander deWaal wrote:

Cmon Arny, my current living room is roughly 11 by 5 meters. my
Maggies have resp. 84 and 86 dB/w/m efficiency and I'm quite happy
with the SPL derived from a mere 20 Veff amplifier.
That equals to 50 watts in 8 and 100 watts in 4 ohms.
Can't get the damn thing to clip!

You must listen at fairly low levels. Nothing wrong with
that, actually.

Howard Ferstler