The Sennheiser HD 600 outperforms on audio fidelity with its 12 Hz-38.5 kHz response and open-back soundstage (per RTINGS and Audio Science Review) but demands an amp and lacks wireless or mic features. The HyperX Cloud Alpha Wireless wins for gaming with 300-hour battery life and integrated mic yet trails in neutral sound accuracy. This is a close call only if wireless gaming is the sole prior...