Audio-Technica ATH-AD900X vs Koss QZ5

Devices with stereo speakers deliver sound from independent channels on both left and right sides, creating a richer sound and a better experience. Show more

Comfortable full-size form with earcups that fully enclose your ears. This model is loved for its increased sound isolation and the fact that it won't leak sound to your neighbors. It offers potential for maximum bass and loudness levels.

A long cable ensures more freedom of movement.

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A coil cable offers more flexibility, as it can be further extended when in use, as well as retracted to take up less space when not in use.

A straight plug is better when the jack is on the top or bottom of your player.

The device is designed in a way that allows sound to go out through the back of the ear cups, which usually have vents or perforations. This design provides very natural and accurate sound.

The highest frequency at which device produces audio. The higher the high-frequency response, the clearer and crispier the treble. Show more

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The lowest frequency at which the device produces audio. The lower the low-frequency response, the stronger and juicier the bass. Show more

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Devices with a higher sound pressure level are generally louder when supplied with any given audio source.

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The device sits tightly in place, creating an acoustic seal which reduces background noise and prevents your music from leaking out.

Impedance is the device’s electrical resistance to the current being pushed through it. The lower the impedance, the easier it is to get higher volume and requires less power. Show more

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Devices with neodymium magnets are lighter and more powerful than those which use ferrite magnets. They also have more bass and clear high notes.

A standard 3.5mm male connector is suitable for use with all MP3 players and computer sound cards.

There is a control panel on the device body, so you can easily access the volume control or remote without having to interact with a cable or another device it's connected to.