beyerdynamic DT 900 PRO X vs HIFIMAN HE400se
Better figure, where one is clearly better
| beyerdynamicDT 900 PRO X | HIFIMANHE400se | |
|---|---|---|
| Overview | ||
| Released | October 2021 | 2021 |
| Sound | ||
| Type | Over-ear | Over-ear |
| Noise cancelling | No | No |
| Driver size | 45 mm | – |
| Back | Open | Open |
| Impedance | 48 ohms | 32 ohms |
| Bluetooth codecs | None (wired) | None (wired) |
| Drivers | STELLAR.45 dynamic drivers (45 mm, Sound On Sound), made in Heilbronn, open; neodymium ring magnet, copper-clad voice coil wire, three-layer diaphragm; 5 – 40,000 Hz; 100 dB SPL (1 mW, 500 Hz), 114 dB SPL (1 V, 500 Hz); THD at 1 mW 0.80% at 100 Hz, 0.05% at 500 Hz, 0.04% at 1 kHz; max. input power 100 mW short-term, 30 mW continuous | Planar magnetic, single-ended, with Stealth Magnets (global version); 20 Hz – 20 kHz; sensitivity 91 dB. HIFIMAN's other HE400se user guide, not marked as the Stealth Magnet version, lists 25 ohms and 390 g |
| Battery | ||
| Listening time (maker's claim) | No battery (wired) | No battery (wired) |
| Design | ||
| Weight | 345 g (better) | 385 g |
| Headphone cable | Yes | Yes |
| Fit and ear tips | Circumaural, open-back; spring steel headband with memory foam pad; headband pressure 5.3 N; replaceable velour ear pads and headband pad | Over-ear, open-back; adjustable lightweight headband with sliding blocks; bevelled hybrid ear pads of varying thickness |
| Works with | 3 m and 1.8 m straight cables, detachable, with a lockable 3-pin mini-XLR connector on one side; gold-plated 3.5 mm stereo jack with 6.35 mm adapter | Detachable dual-sided 1.5 m cable with 3.5 mm plug and 3.5 mm connectors at each cup; 6.35 mm adapter |
| Colours | Black | – |
| In the box | Headphones, 3 m straight cable, 1.8 m straight cable, 6.35 mm adapter, bag | Headphones, 1.5 m cable (3.5 mm plug), ear pads (fitted), 6.35 mm headphone adapter |
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