AKG K121 StudioSennheiser HD 558
Top 41%402 points
Top 41%
Top 42%394 points
Top 42%
AKG K121 Studio
Sennheiser HD 558
vs
Top specs and features

AKG K121 Studio vs Sennheiser HD 558: 14 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.

2. lowest frequency

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

3. weight

40g lighter.

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.

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.
AKG K121 Studio
Sennheiser HD 558
35% have it

6. sound pressure level

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

7. has a tangle free cable

The cable is designed to minimize tangling.
AKG K121 Studio
Sennheiser HD 558
26% have it

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.
AKG K121 Studio
Sennheiser HD 558
73% have it

9. has included ear pads

Allows you to change ear pads without buying new ones.
AKG K121 Studio
Sennheiser HD 558
44% have it

10. has a straight plug

A straight plug is better when the jack is on the top or bottom of your player.
AKG K121 Studio
Sennheiser HD 558
55% have it

11. 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
Sennheiser HD 558
42% have it

12. cable length

A long cable ensures more freedom of movement.

13. 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
Sennheiser HD 558
22% 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.
AKG K121 Studio
Sennheiser HD 558
87% have it

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