Maximum volume clarity

Clarity at higher volumes is often strong, with multiple measurements or impressions noting low distortion and clean playback. Several reviews explicitly mention that the sound does not collapse into harshness at louder levels.

Maximum-volume performance is mixed: some reviewers report clean playback with no crackle even at very high levels, while others hear spiky or distorted highs when pushing volume, particularly on Music or more aggressive EQ profiles. In practice, keeping volume moderate and using EQ to tame the upper mids/treble yields the clearest results.

At high volumes the IO-12 stays exceptionally clean, with reported lack of distortion even when pushed loud.

Plays loudly without falling apart: at least one reviewer highlights very low distortion and clean bass even at higher volumes; overall loudness remains controlled, though clarity can still depend on fit and EQ.

Both wired and wireless listening remain clean without obvious distortion, even at higher volumes, supporting loud playback when desired.

Maintains clean playback with very low distortion as volume increases, so sound stays composed and detailed rather than breaking up at higher listening levels.

Clarity remains high at louder levels with low perceived distortion in multiple reviews, supporting confident listening at higher volumes. If tuning is not updated or personalized well, the tonal balance may still sound wrong even when clean.

At high listening levels, reviews report strong clarity with minimal distortion and low sound leakage, helping it stay composed near maximum volume. Extremely loud listening can still shorten battery life, but the headset is commonly described as staying clean and controlled when pushed.

Even near maximum volume, reviewers generally describe the Momentum 4 as staying clean and composed without obvious breakup. Some testing notes a slightly lower loudness ceiling than expected, but clarity and balance largely hold up when volume is pushed.

At least one long-form impression notes the headphones remain clean at very high volumes, with little obvious distortion even near maximum output. Practical listening still benefits from lower volumes given how loud they can get.

Distortion is generally well controlled even when turned up, though pushing volume hard (or with certain EQ) can expose limits in punch and headroom.

At louder listening levels the H9 II generally avoids harshness and obvious distortion, though certain tunings can make the upper range sound a bit crunchy until EQ is adjusted.

At higher volumes, the sound generally stays composed with clear bass and non-shrill treble; clarity is good, though some listeners raise volume more than expected due to lower output.

At higher volumes the drivers generally avoid obvious distortion, but pushing loudness can reduce detail and bass can smear separation, especially in noisy settings where you max out volume.

Even at very high volumes the drivers generally stay clear and resist obvious distortion, though the bright treble can become sharper or more fatiguing at maximum output.

High-volume clarity is generally strong with low distortion reported by some reviewers, but a few note the tuning can sound flatter or require EQ tweaks at very loud listening levels. Overall clarity remains above average for the segment.

Holds together well at high volume with limited distortion, but some sibilance/harshness can appear when cranked.

Clarity at higher volumes is generally good, but a few reviews noted bass can become too forward or boomy when pushed. Overall, the buds maintain detail better than many competitors, but they are not immune to tonal shifts at max volume.