Audio-Technica ATH-ESW9AKoss PRO4AAT
Top 48%689 points
Top 48%
Top 57%579 points
Top 57%
Audio-Technica ATH-ESW9A
Koss PRO4AAT
vs
Top specs and features

Audio-Technica ATH-ESW9A vs Koss PRO4AAT: 17 facts in comparison

1. highest frequency

The highest frequency at which device produces audio. The higher the high-frequency response, the clearer and crispier the treble.
35000Hz
Sony MDR-Z1R: 120000Hz
25000Hz

2. lowest frequency

The lowest frequency at which the device produces audio. The lower the low-frequency response, the stronger and juicier the bass.
5Hz
Sony MH1CBLK: 1Hz
10Hz

3. weight

669.15g lighter.
170g
Sony MDR-EX150AP: 3g
839.15g

4. has sound isolation/passive noise reduction

The device sits tightly in place, creating an acoustic seal which reduces background noise and prevents your music from leaking out.
Audio-Technica ATH-ESW9A
Koss PRO4AAT
48% have it

5. impedance

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.
42Ohms
Flips Solo 2 Social: 4Ohms
250Ohms

6. has a neodymium magnet

Devices with neodymium magnets are lighter and more powerful than those which use ferrite magnets. They also have more bass and clear high notes.
Audio-Technica ATH-ESW9A
Koss PRO4AAT
33% have it

7. sound pressure level

Devices with a higher sound pressure level are generally louder when supplied with any given audio source.
103dB/mW
AKG K553 Pro: 144dB/mW
95dB/mW

8. no battery needed

This device works without batteries. It weighs less and you don't have to worry about recharging or replacing the battery.
Audio-Technica ATH-ESW9A
Koss PRO4AAT
73% have it

9. can be folded

Folding devices are good for transporting as they take up less space in your bag.
Audio-Technica ATH-ESW9A
Koss PRO4AAT
31% have it

10. has an over-the-ear form

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.
Audio-Technica ATH-ESW9A
Koss PRO4AAT
42% have it

11. has stereo speakers

Devices with stereo speakers deliver sound from independent channels on both left and right sides, creating a richer sound and a better experience.
Audio-Technica ATH-ESW9A
Koss PRO4AAT
75% have it

12. has a straight plug

A straight plug is better when the jack is on the top or bottom of your player.
Audio-Technica ATH-ESW9A
Koss PRO4AAT
53% have it

13. travel bag is included

The device comes with its own special case or pouch, which is useful for safe transportation.
Audio-Technica ATH-ESW9A
Koss PRO4AAT
64% have it

14. has a coiled cord

A coiled cord typically offers more flexibility as it can be extended, and taken outside for example.
Audio-Technica ATH-ESW9A
Koss PRO4AAT
8% have it

16. has a 3.5mm male connector

A standard 3.5mm male connector is suitable for use with all MP3 players and computer sound cards.
Audio-Technica ATH-ESW9A
Koss PRO4AAT
87% have it

17. has an on-ear form

This device comfortably rests on top of your outer ears. As it doesn't block out everything from the outside world, it's preferred in places like office environments and recommended for outdoor activities.
Audio-Technica ATH-ESW9A
Koss PRO4AAT
22% have it

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