Audio-Technica ATH-M30x vs Sennheiser HD 25-1 II: 20 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.
22000Hz
Sony MDR-Z1R: 120000Hz
22000Hz
2. lowest frequency
The lowest frequency at which the device produces audio. The lower the low-frequency response, the stronger and juicier the bass.
15Hz
Sony MH1CBLK: 1Hz
16Hz
3. weight
80g lighter.
220g
Sony MDR-EX150AP: 3g
140g
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-M30x
Sennheiser HD 25-1 II
45% 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.
47 Ohms
Flips Solo 2 Social: 4 Ohms
70 Ohms
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-M30x
Sennheiser HD 25-1 II
35% have it
7. sound pressure level
Devices with a higher sound pressure level are generally louder when supplied with any given audio source.
96dB/mW
AKG K553 Pro: 144dB/mW
120dB/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-M30x
Sennheiser HD 25-1 II
69% have it
9. has a detachable cable
With a detachable cable you can use alternative cables, and if the cable is pulled it will pop out instead of breaking.
Audio-Technica ATH-M30x
Sennheiser HD 25-1 II
39% have it
10. can be folded
Folding devices are good for transporting as they take up less space in your bag.
Audio-Technica ATH-M30x
Sennheiser HD 25-1 II
31% 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-M30x
Sennheiser HD 25-1 II
76% have it
12. 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-M30x
Sennheiser HD 25-1 II
40% 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-M30x
Sennheiser HD 25-1 II
63% have it
14. has a straight plug
A straight plug is better when the jack is on the top or bottom of your player.
Allows you to change ear pads without buying new ones.
Audio-Technica ATH-M30x
Sennheiser HD 25-1 II
42% have it
16. 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.
Audio-Technica ATH-M30x
Sennheiser HD 25-1 II
31% have it
17. 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-M30x
Sennheiser HD 25-1 II
83% have it
18. cable length
A long cable ensures more freedom of movement.
3m
Pioneer SE-A1000: 6m
1.5m
19. 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-M30x
Sennheiser HD 25-1 II
23% have it
20. has removable speakers
This modularity allows you to integrate the speakers into hoodies or snowboard helmets.