The ANC Kings Face Off
Sony and Bose have traded the active noise cancellation crown for years. With the WH-1000XM6 and QuietComfort Ultra both now available, we put them through rigorous testing across five environments: airplane cabin, open office, subway, coffee shop, and busy street.
ANC Measurement Results
We used a calibrated measurement microphone inside a head simulator to quantify noise reduction at specific frequencies:
- Airplane cabin (250Hz rumble): Bose reduces 32dB, Sony reduces 30dB
- Office chatter (1kHz): Sony reduces 25dB, Bose reduces 23dB
- Subway screech (4kHz): Sony reduces 22dB, Bose reduces 20dB
- Coffee shop (mixed): Both reduce approximately 24dB
Bose wins on low-frequency drone noise while Sony edges ahead on mid-to-high frequency sounds like voices and traffic.
Sound Quality
Sony's sound signature is warmer with emphasized bass. The 40mm drivers deliver punchy low-end that works well for pop and hip-hop. Classical and acoustic genres benefit from Bose's more neutral tuning which reveals instrument separation that Sony's bass emphasis can obscure.
Comfort
After 4-hour continuous wear tests, the Bose QC Ultra wins on comfort. Its clamping force is lower, the ear cups are deeper, and the headband distributes weight more evenly. The Sony becomes noticeable after about 2 hours, especially for glasses wearers.
Features and Battery
- Sony: 40 hours with ANC on, multipoint Bluetooth, speak-to-chat, quick charge
- Bose: 24 hours with ANC on, multipoint Bluetooth, Immersive Audio mode
Verdict
If battery life and bass-forward sound are your priorities, choose the Sony WH-1000XM6. If all-day comfort and neutral sound matter more, the Bose QC Ultra is the better pick.
