Audio Technica ATH-AD500X vs Sennheiser HD 650 – Key Differences & Best Choice (2026)

Lightweight honeycomb aluminum casing. 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. Highly conductive Oxygen-Free Copper single-sided cable with elastic TPE sheath to prevent tangles. Open-air headphones produce no sense of pressure on the ears, resulting in a completely natural sensation. Self-adjusting 3D Wing Support Housing provides comfortable support for a more enjoyable listening experience. Newly designed 53 mm drivers with CCAW voice coils reproduce remarkably natural sound, with deep, impactful bass and outstanding vocal projection.

- 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

Key Differences

Sennheiser HD 650 and Audio Technica ATH-AD500X offer different noise cancellation capabilities (NA vs Sound Isolation), which can impact how effectively they block external noise. The frequency response differs (10 Hz - 41,000 Hz vs 5Hz - 25KHz), which can influence how well the headphones reproduce lows, mids, and highs. From a usability standpoint, both models provide a reliable and premium headphone experience. Both headphones offer solid battery performance, making them suitable for long listening sessions and travel. There is a noticeable difference in weight (260 g vs 235 GM), which may affect comfort during extended use. Sennheiser HD 650 and Audio Technica ATH-AD500X 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. Impedance levels vary (300 Ohms vs 48 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.

Verdict: Choosing between Sennheiser HD 650 and Audio Technica ATH-AD500X 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 235 GM
Impedance: 300 Ohms vs 48 ohm

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Key Differences

Top Differences