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

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.

Key Differences

Impedance levels vary (300 Ohms vs 48 ohm), which can affect compatibility and audio output when used with different devices. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. In general, both options are suitable for everyday use including music, calls, travel, and work-from-home scenarios. 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. The driver size differs between the two (NA vs 53 mm), which can influence sound depth, bass response, and overall audio clarity. 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. Sennheiser HD 650 and Audio Technica ATH-AD500X 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: 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