Band: opinion spread · Dot: weighted average
The headline trait and mostly praised: extended, weighty and punchy for an open-back. A minority find the mid-bass lift muddying on dense recordings or the bass slow to start and stop.
“It excels especially in the low-end to me, where it provides remarkable extension, slam, rumble and impact.”
Felix, Headfonia
“I keep being surprised at the heft at low frequencies.”
oratory1990 (Head-Fi, with his measurements)
“The midbass lift can introduce a bit of muddiness on certain tracks, masking finer details and slightly softening both male and female vocals.”
James Fiorucci, eCoustics
“低音の立ち上がりと減衰のどちらもだいぶゆっくりなところにあります。”
Sandal Audio (Japanese: 'both the attack and the decay of the bass are fairly slow')
Measured
Every rig agrees on a bass shelf: against an HD 600 on the same coupler, three IEC-711-class squig rigs read about +3 dB from 80–300 Hz and +5–7 dB at 40–80 Hz, rising further below. oratory1990 measures very deep extension and 'a good deal more warmth broadly around 200 Hz'; Kuulokenurkka finds the upper bass elevated up to 400 Hz with sub-bass slightly above Harman.
vs. listeners — ON-mag hears only average extension, but also reports that the bass drops quickly when the pads don't seal — so a poor seal, not the driver, likely explains its reading against the four rigs that show deep extension.