Sennheiser HD 650 vs Audio Technica ATH-AD700X – Specs, Price & Comparison (2026)

- Systems with narrow tolerances (Â± 1 dB), hand-picked in pairs - Highly optimised magnet systems for minimum harmonic and intermodulation distortion - High-quality titanium/silver finish - A specially developed damping element, made from fine acoustic metal mesh, ensures a precise damping over the entire diaphragm surface, highly constant in all climates. - Extremely lightweight aluminium voice coils ensure excellent transient response - Specially modulated connecting cable (detachable) made from highly conductive OFC copper, with very low handling noise, i.e. low structure-borne sound sensitivity - Gold plated 1/4" jack plug with adaptor lead to 3.5 mm jack plug - 2-year warranty

Bobbin-wound CCAW voice coils for superior power handling. Newly designed 53 mm drivers reproduce clear treble and midrange. Gold-plated stereo 1/8" ( 3.5 mm ) connector with 1/4" ( 6.3 mm ) adapter. Flexible raised-fabric earpads offer excellent wearing comfort and durability. Lightweight aluminum honeycomb casing with excellent acoustic properties. Highly conductive OFC single-sided cord with elastic TPE sheath to prevent tangles. High-quality hybrid PCOCC and titanium alloy cord. Extremely comfortable velvet ear-fitting pads. Full open-air type headphones produce no sense of pressure on the ears, resulting in a completely natural sensation. Self-adjusting 3D Wing Support provides a comfortable listening experience; total ear-fit design minimizes pressure.

Key Differences

In general, both options are suitable for everyday use including music, calls, travel, and work-from-home scenarios. Sennheiser HD 650 and Audio Technica ATH-AD700X are well-known options in the wireless headphone segment, offering a balance of audio quality, battery performance, and smart features. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. Both headphones offer solid battery performance, making them suitable for long listening sessions and travel. Sennheiser HD 650 and Audio Technica ATH-AD700X offer different noise cancellation capabilities (NA vs Sound Isolation), which can impact how effectively they block external noise. Impedance levels vary (300 Ohms vs 38 ohm), which can affect compatibility and audio output when used with different devices. The driver size differs between the two (NA vs 53 mm), which can influence sound depth, bass response, and overall audio clarity. The frequency response differs (10 Hz - 41,000 Hz vs 5Hz - 30KHz), which can influence how well the headphones reproduce lows, mids, and highs. There is a noticeable difference in weight (260 g vs 265 GM), which may affect comfort during extended use.

Verdict: Choosing between Sennheiser HD 650 and Audio Technica ATH-AD700X depends on whether you value better sound, longer battery life, or enhanced features.

Top Differences

Noise Cancelling: NA vs Sound Isolation
Driver Size: NA vs 53 mm
Weight: 260 g vs 265 GM
Impedance: 300 Ohms vs 38 ohm

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Key Differences

Top Differences