Sennheiser HD 660S2 vs Audio Technica ATH-A2000Z – Specs, Price & Comparison (2026)

Plush ear cushions and open design for maximum comfort. Outstanding quality designed in Germany, made in Ireland. Intimate sound with great timbre and deep, accurate sub bass. Uniquely powerful vented magnet system for minimized distortion. Ultra-light aluminium voice coil with 300-ohm impedance for excellent impulse response.

High-rigidity titanium housings. Includes 6.3 mm (Â¼") stereo adapter. Proprietary 3D wing support system for excellent fit. Lightweight magnesium alloy baffle decreases unwanted resonance. 3.0 m (9.8') OFC-6N dual-sided, four-core cable with elastomer sheath. Newly designed 53 mm drivers with OFC-7N bobbin-wound voice coils. Stitched, ergonomic earpads offer superior comfort and sound isolation. The ATH-A2000Z Art MonitorÂ® closed-back dynamic headphones feature proprietary large-aperture 53 mm drivers to deliver exquisite Hi-Res Audio reproduction. Hand-assembled drivers include top-mounted PCB, Permendur* magnetic circuitry and pure iron yoke, ensuring precise diaphragm movement and superior transient response. The housings also feature Audio-Technicaâ€™s Double Air Damping System ( D.A.D.S ) for deep, natural-sounding bass reproduction. The bass is further extended by the headphonesâ€™ stitched, ergonomic earpads, which provide outstanding sound isolation along with unmatched comfort.

Key Differences

Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. There is a noticeable difference in weight (260 Gm vs 294 GM), which may affect comfort during extended use. In general, both options are suitable for everyday use including music, calls, travel, and work-from-home scenarios. Impedance levels vary (300 ohm vs 44 ohm), which can affect compatibility and audio output when used with different devices. The driver size differs between the two (38 mm vs 53 mm), which can influence sound depth, bass response, and overall audio clarity. Sennheiser HD 660S2 and Audio Technica ATH-A2000Z offer different noise cancellation capabilities (AMBIENT vs Sound Isolation), which can impact how effectively they block external noise. The frequency response differs (8 Hz -41500 Hz vs 5Hz - 45KHz), which can influence how well the headphones reproduce lows, mids, and highs. Both headphones offer solid battery performance, making them suitable for long listening sessions and travel. Sennheiser HD 660S2 and Audio Technica ATH-A2000Z are premium wireless headphones designed to deliver high-quality sound along with advanced features like noise cancellation and long battery life.

Verdict: Both headphones offer strong performance, and the right choice depends on your priorities such as battery life, comfort, and noise cancellation.

Top Differences

Noise Cancelling: AMBIENT vs Sound Isolation
Driver Size: 38 mm vs 53 mm
Weight: 260 Gm vs 294 GM
Impedance: 300 ohm vs 44 ohm

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Key Differences

Top Differences