Sony Mdr-7506

RTINGS finds the MDR-7506 disappointing for travel because it does not block much outside noise, including subway and bus sounds. The review emphasizes that its passive isolation is limited, so it is better suited to quiet environments than commuting.

SoundGuys describes the MDR-7506 as an industry-standard studio headphone with a frequency response that is mostly close to target but with a noticeable upper-mid/treble emphasis. In their testing, the highs can get bright, with some roll-off at the very top end.

TechGearLab says the MDR-7506 is clear and accurate overall, but the treble can be shouty and harsh at times. They also note that its passive noise cancellation is weak and that it lacks ANC.