AKG K121 StudioKoss JR 900
Top 58%562 points
Top 58%
Top 69%420 points
Top 69%
AKG K121 Studio
Koss JR 900
vs
Top specs and features

AKG K121 Studio vs Koss JR 900: 15 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.
22500Hz
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.
18Hz
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.
AKG K121 Studio
Koss JR 900
46% 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.
55Ohms
Flips Solo 2 Social: 4Ohms
10Ohms

5. no battery needed

This device works without batteries. It weighs less and you don't have to worry about recharging or replacing the battery.
AKG K121 Studio
Koss JR 900
72% have it

6. has a tangle free cable

The cable is designed to minimize tangling.
AKG K121 Studio
Koss JR 900
25% have it

7. has a straight plug

A straight plug is better when the jack is on the top or bottom of your player.
AKG K121 Studio
Koss JR 900
52% have it

8. 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.
AKG K121 Studio
Koss JR 900
42% have it

9. 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.
AKG K121 Studio
Koss JR 900
76% have it

10. has included ear pads

Allows you to change ear pads without buying new ones.
AKG K121 Studio
Koss JR 900
41% have it

11. Can be used wirelessly

Wireless devices allow users more freedom of movement.
AKG K121 Studio
Koss JR 900
17% 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.
AKG K121 Studio
Koss JR 900
15% have it

13. has a 3.5mm male connector

A standard 3.5mm male connector is suitable for use with all MP3 players and computer sound cards.
AKG K121 Studio
Koss JR 900
86% have it

14. 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.
AKG K121 Studio
Koss JR 900
23% have it

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