Band: opinion spread · Dot: weighted average
Sources split on the same measured sub-bass shelf: most hear a full, well-controlled low end that never overwhelms, while the reviewers who measure — and some owners — find it too much, loose and boomy until it is EQ'd down.
Measured
Three squig rigs agree on a shelf of roughly +9.5 to +11.6 dB at 20 Hz and +9 to +10 dB at 40 Hz relative to 500 Hz (Super* Review's 711 clone, Earphones Archive's B&K 5128, DHRME), easing to about +2 dB by 100 Hz — where an HD 600 on the same rigs sits about 8 dB below 500 Hz at 20 Hz. SoundGuys measures the shelf peaking at +11 dB; RTINGS rates bass Emphasized (3 dB).
vs. listeners — The lift is concentrated below about 60 Hz, so listeners who judge mid-bass punch hear it as controlled while those who notice sub-bass rumble hear it as boomy. It also depends on the seal: headphones.com's Caleb Loo measured the deepest octave rolling off with his glasses on, and Headfonia warns that glasses and beards trim it. Resolve hears even more sub-bass than the MOMENTUM 4, while RTINGS' staff reply that the MOMENTUM 4 measured more.
“serve up an ample amount of bass that’s well-defined and punchy”
David Carnoy, CNET
“The Sennheiser MOMENTUM 5 Wireless sounds decent, if a bit bass-heavy.”
Christian Thomas, SoundGuys
