Verdict: The Beyerdynamic DT 1990 Pro outperforms the ASUS ROG Delta S Wireless in pure audio fidelity, with RTINGS measuring a 15 % wider frequency response and lower distortion, and its robust metal construction scores higher durability in Wirecutter. The Delta S wins on convenience, offering low‑latency 2.4 GHz wireless and detachable AI‑mic, but its 32 Ω impedance and battery wear limit long‑term studio use. For critical mixing, the DT 1990 Pro is the clear choice; for gaming or mobile use, the Delta S provides the needed freedom.
Winner: Beyerdynamic DT 1990 Pro
ASUS ROG Delta S Wireless: 6.5/10
Beyerdynamic DT 1990 Pro: 7.8/10
| ASUS ROG Delta S Wireless | Beyerdynamic DT 1990 Pro | |
|---|---|---|
| Driver Size | 50 mm | 45 mm |
| Impedance | 32 Ω | 250 Ω |
| Frequency Response | 20 hertz | 5‑40 kHz |
| Battery Life | 110 hours | — |
| Sensitivity | — | 102 dB SPL/V |
Our pick: Beyerdynamic DT 1990 Pro.
The Beyerdynamic DT 1990 Pro offers stronger bass impact and brighter treble detail at $500, while the Sennheiser HD 660S2 delivers smoother, more natural mids and superior soundstage at $600. The DT 1990 Pro is better for analytical listening; the HD 660S2 wins for relaxed, musical enjoyment.
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