Jones Bob
1000+ Head-Fier
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Quote:
Experience with the SR-007 and SR-009 says otherwise, than reading off a spec sheet..
100 dB vs 101 dB re 100 Vrms? - not that big a difference - enough to have to control for in a serious listening test but a 1 dB difference is well below what anyone telling you to turn the music up/down is going to credit you with doing anything at all
and remember that it is always only a 1 dB SPL difference even turned all the way up if each earspeaker sees the same V due to the way logarithms work - and it only requires a 12% difference in drive V level to match them
from Tyll's measurements they both seem to have similar relative flatness/peaking at 1 kHz and below - but frequency response differences could give bigger subjective loudness impressions than just the spot SPL #
the 009 @ 110 pF is a heavier load than the 007's 94 pF - by more than the 1 dB sensitivity difference
Experience with the SR-007 and SR-009 says otherwise, than reading off a spec sheet..