Headphones — Moondrop COSMO

The COSMO is a distinctive open-back wired over-ear headphone from Moondrop, built with an exceptionally wide frequency response. The COSMO brings Moondrop's most accomplished current over-ear engineering to a serious open-back format.

Key specs that matter

Frequency response spans an exceptionally wide 13Hz to 58,000Hz within plus-or-minus 10dB - a remarkable range extending well beyond typical open-back headphone specifications. Connection uses a 3.5mm jack. Sensitivity is 100dB SPL at 1kHz/1mW, with impedance at a comparatively benign 15 ohms.

Sound and use context

Expect a spacious, detailed presentation reflecting the exceptionally wide 13Hz-58kHz bandwidth, with the 100dB sensitivity and comparatively benign 15-ohm impedance meaning this headphone performs well from a wide range of sources.

Pairing

The 100dB sensitivity and comparatively benign 15-ohm impedance make the COSMO compatible with a wide range of sources, including portable devices without a dedicated headphone amplifier.

Alternatives

Moondrop's own VENUS and VOID offer related open-back over-ear alternatives within the same broader catalogue.