AKG K551Sennheiser MM 30G
Top 54%615 points
Top 54%
Top 56%590 points
Top 56%
AKG K551
Sennheiser MM 30G
vs
Top specs and features

AKG K551 vs Sennheiser MM 30G: 18 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.
28000Hz
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.
12Hz
Sony MH1CBLK: 1Hz
17Hz

3. weight

294g lighter.
305g
Sony MDR-EX150AP: 3g
11g

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.
AKG K551
Sennheiser MM 30G
46% 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.
32Ohms
Flips Solo 2 Social: 4Ohms
16Ohms

6. sound pressure level

Devices with a higher sound pressure level are generally louder when supplied with any given audio source.
114dB/mW
AKG K553 Pro: 144dB/mW
106dB/mW

7. 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 K551
Sennheiser MM 30G
72% have it

8. can be folded

Folding devices are good for transporting as they take up less space in your bag.
AKG K551
Sennheiser MM 30G
32% have it

9. has an in-line control panel

There is a control panel on the cable, so you can easily operate the device without having to interact with it.
AKG K551
Sennheiser MM 30G
45% 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 K551
Sennheiser MM 30G
52% 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.
AKG K551
Sennheiser MM 30G
76% have it

12. has an L-shaped plug

An L-shaped plug is better if the jack is on the left or right side of the device, so that the cable isn't bent, and is less likely to break when the device is in your pocket.
AKG K551
Sennheiser MM 30G
31% have it

13. has included ear pads

Allows you to change ear pads without buying new ones.
AKG K551
Sennheiser MM 30G
41% have it

14. number of microphones

More microphones result in better sound quality and enable the device to filter out background noise.
1
Parrot Zik Sport: 8
1

16. cable length

A long cable ensures more freedom of movement.
1.2m
Pioneer SE-A1000: 6m
1.2m

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.
AKG K551
Sennheiser MM 30G
23% have it

18. has an in-ear form

The in-ear device is ultracompact and lightweight, with little or no interference with earrings, spectacles, hats, or hairstyles. It is inserted in the ear canal itself and blocks out a lot of environmental noise. It has stronger bass tones and is unlikely to fall out of the ear.
AKG K551
Sennheiser MM 30G
33% have it

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