Audio-Technica ATH-ES55BK vs Koss JR 900: 16 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.
25000Hz
Sony MDR-Z1R: 120000Hz
20000Hz
2. lowest frequency
The lowest frequency at which the device produces audio. The lower the low-frequency response, the stronger and juicier the bass.
10Hz
Sony MH1CBLK: 1Hz
20Hz
3. 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-ES55BK
Koss JR 900
45% have it
4. 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.
34 Ohms
Flips Solo 2 Social: 4 Ohms
10 Ohms
5. 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-ES55BK
Koss JR 900
35% have it
6. 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-ES55BK
Koss JR 900
69% have it
7. can be folded
Folding devices are good for transporting as they take up less space in your bag.
Audio-Technica ATH-ES55BK
Koss JR 900
31% have it
8. 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-ES55BK
Koss JR 900
76% have it
9. Can be used wirelessly
Wireless devices allow users more freedom of movement.
Audio-Technica ATH-ES55BK
Koss JR 900
21% 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-ES55BK
Koss JR 900
40% have it
11. travel bag is included
The device comes with its own special case or pouch, which is useful for safe transportation.
Audio-Technica ATH-ES55BK
Koss JR 900
63% have it
12. control panel placed on a device
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.
Audio-Technica ATH-ES55BK
Koss JR 900
17% have it
13. has a straight plug
A straight plug is better when the jack is on the top or bottom of your player.
Audio-Technica ATH-ES55BK
Koss JR 900
50% have it
14. has a 3.5mm male connector
A standard 3.5mm male connector is suitable for use with all MP3 players and computer sound cards.
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-ES55BK
Koss JR 900
23% have it
16. has a removable battery
The battery is removable and can be replaced by the user if broken.