
5% cheaper ≈ $370
- Active noise cancelling
- Lowest frequency 4 Hz vs 8 Hz
- Weight 254 g vs 260 g
- Driver size 30 mm vs 38 mm
- Highest frequency 40,000 Hz vs 41,500 Hz
10 headphones at a similar price that compete with the HD 660S2 — what each does better, what it gives up and how the price compares.









