Band: opinion spread · Dot: weighted average
Sources split, close to evenly: one camp hears deep, powerful bass and the other hears almost none. Every direct comparison puts it below the Cloud II and Cloud Alpha. The split lines up with connection, since the rig measuring the 3.5 mm plug shows a mid-bass hump that the USB dongle reportedly flattens, and it may also reflect what listeners came from.
Measured
GadgetryTech's KB006x rig, on the 3.5 mm plug, shows a hump around 80–150 Hz: +7.8 dB at 100 Hz relative to 500 Hz and +7.5 dB against its HD 6XX, falling to +1.8 dB at 50 Hz. RTINGS's HMS II.3 curve has no hump: 3–7 dB under its target from 20 to 200 Hz, and −6.9 dB at 100 Hz against its Cloud II. SoundGuys measures a 'noticeable lack of sub-bass'.
vs. listeners — The rigs differ by about 10 dB at 100 Hz, and connection is the likely reason. GadgetryTech measures the 3.5 mm plug and says the USB dongle reduces the hump. Les Numériques says the uneven bass is worst on the mini-jack and eases over USB, and SoundGuys hears the dongle cut the low mids. RTINGS's curve resembles the flattened version, though its test connection is member-locked. Some readers praising and some criticising the bass may simply be using different plugs.
“However, their default sound profile lacks bass, making the audio less full and immersive.”
RTINGS
“The Cloud III has an excellent bass response, which is deep and powerful, and can be felt even in the lower ranges where it can’t be heard.”
Tom's Hardware
