Sennheiser CX 400 II Precision Avis | 93 Données comparées

The Sennheiser CX-400 II is a low-impedance, closed-back, in-ear headphone model evaluated through a simplified entry-level audio analysis report. According to the measurement data, the headphones feature a voltage sensitivity of 126.09 dB/V SPL, an average impedance of 19.17 ohms, and a power sensitivity of 108.91 dB/mW SPL. While the testing highlights that the frequency response deviates from the Target Harman In-Ear (2019) curve, the data also provides corresponding equalizer calibration targets to help users adjust and correct the tonal balance for quiet, natural, or loud listening volumes. The primary advantage of these earphones is their lower impedance and practical sensitivity profile, making them highly compatible with most standard consumer audio sources and mobile devices without requiring a dedicated amplifier. Furthermore, their sensitivity level ensures that background hiss or source noise remains imperceptible during playback. On the downside, the headphones are 3.0 dB quieter than the historical average of similar in-ear models. This below-average power sensitivity results in higher energy consumption, meaning they will drain the battery of connected mobile devices faster than many competing options.

The Sennheiser CX 400-II is a durable, entry-level, wired in-ear monitor praised for its comfortable design, excellent passive noise isolation, and a generous accessory package that includes multiple ear tip options and a carrying case. Sonically, the earphones deliver a warm, robust sound signature characterized by a powerful, controlled bass and clear mids, making them suitable for casual listening. However, reviewers note drawbacks, including a narrow soundstage that provides a confined, unexciting listening experience. Additionally, the higher frequencies can be sharp and fatiguing, and the straight-down cable design lacks comfort, often requiring EQ adjustments to balance the audio.

In the Totally Dubbed Sennheiser CX 400-II review, the earphones received a high final rating of 9/10 due to their excellent value for money at a purchase price of £18. The reviewer highlighted several major pros, emphasizing their exceptional comfort (rated 10/10) and small size, which allows them to get "lost" in the ears and enables users to sleep while wearing them. Additional advantages include strong bass response, an impressive selection of included accessories (rated 9/10), above-average noise isolation, a discrete design, and a practical 3.5mm L-shaped jack. The audio performance is rounded out by high frequencies that are considered "just right". Conversely, the review identifies critical cons regarding the sound profile and durability. A major complaint is that the midrange frequencies (rated 5.5/10) are heavily overshadowed and muffled by the prominent mid-bass response. Furthermore, the physical build quality received a lower score of 7/10, with the reviewer noting that the plastic exterior was flimsy and prone to falling apart, causing a driver on the tested unit to fail completely after only several months of use. Ultimately, the review concludes...