I thought I posted this earlier, but maybe I only hit preview instead of post :x
So with my home stereo maxing out around 104-110 dBC, PiP off the M10 seems fine powering these. I might be OK without a battery box for many of the shows I go to. DC offset stayed at 0.000030, which is what I'm used to from my reference DAB > DA-120F > line-in setup, too.
I hit 129 dBC by screaming into the 4063s and DC offset jumps to -0.003368.
But I don't think I've ever hit those levels at a show, not even Mogwai(*).
I measured softer yelling into them at 117 dBC with DC offset of -0.000474.
These might be from having the levels up too high, and my voice is already gone.
My screams and yells are unlistenable regardless, so I can't give comments about
audio quality, either.
Even for most rock/metal shows I go to, the loudest levels from my DAB setup (head-mounting over ears) are from people screaming and clapping near me; so maybe I'll be OK. I will need to learn to dial in the Mic-In levels on the M10...
I'm using a Galaxy Audio CM-140 SPL meter for dBC measurements, and that seems to max out at 130dB (not sure if that spec is A/C weighted), so maybe my scream measurements aren't very accurate.
DC offset was reported by SoX.
M10 settings: level: 4, mic sens: lo, limiter: off, 24-bit@48kHz
(*) the loudest band I've seen/recorded. But Mogwai doesn't seem as loud as they used to be. I wonder if:
a) they lowered their levels over the years
b) I'm favoring positions close to the stage and avoiding room gain/PA coverage
c) they are playing smaller venues with weaker PAs
d) my hearing is less sensitive nowadays :x
I remember folks without earplugs covering their ears and crouching down at the Wiltern back in the day (but I wasn't a taper back then).