42points

Koss Pro4S

46points

Sennheiser HD 218i

Koss Pro4S
Sennheiser HD 218i
Comparison winner
vs
vs

19 facts in comparison

Koss Pro4S vs Sennheiser HD 218i

Koss Pro4S
Sennheiser HD 218i

Why is Koss Pro4S better than Sennheiser HD 218i?

  • 9Hz lower low-frequency
    ?

    10Hzvs19Hz
  • 4000Hz higher high-frequency
    ?

    25000Hzvs21000Hz
  • Has an over-the-ear form
    ?
  • Has a detachable cable
    ?
  • Can be folded
    ?
  • Travel bag is included
    ?
  • 0.2m longer cable
    ?

    1.4mvs1.2m
  • Has a coil cable
    ?

Why is Sennheiser HD 218i better than Koss Pro4S?

  • Has stereo speakers
    ?
  • 9dB/mW higher sound pressure level
    ?

    108dB/mWvs99dB/mW
  • 3 Ohms lower impedance
    ?

    32 Ohmsvs35 Ohms
  • Has a neodymium magnet
    ?
  • Can be used as a headset
    ?
  • Has a 3.5mm male connector
    ?
  • 89g lighter
    ?

    92gvs181g
  • Has an in-line control panel
    ?

Price comparison

Design

1.has stereo speakers
Koss Pro4S
Sennheiser HD 218i
Devices with stereo speakers deliver sound from independent channels on both left and right sides, creating a richer sound and a better experience.
2.has an over-the-ear form
Koss Pro4S
Sennheiser HD 218i
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.
3.has a detachable cable
Koss Pro4S
Sennheiser HD 218i
With a detachable cable you can use alternative cables, and if the cable is pulled it will pop out instead of breaking.
4.weight

181g

92g

We consider a lower weight better because lighter devices are more comfortable to carry. A lower weight is also an advantage for home appliances, as it makes transportation easier, and for many other types of products.
5.can be folded
Koss Pro4S
Sennheiser HD 218i
Foldable devices are easier to transport and take up less storage space.
6.travel bag is included
Koss Pro4S
Sennheiser HD 218i
The device comes with its own special case or pouch, which is useful for safe transportation.

Sound quality

1.lowest frequency

10Hz

19Hz

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

25000Hz

21000Hz

The highest frequency at which device produces audio. The higher the high-frequency response, the clearer and crispier the treble.
3.has passive noise reduction
Koss Pro4S
Sennheiser HD 218i
The device sits tightly in place, creating an acoustic seal which reduces background noise and prevents your music from leaking out.
4.sound pressure level

99dB/mW

108dB/mW

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

35 Ohms

32 Ohms

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.
6.has a neodymium magnet
Koss Pro4S
Sennheiser HD 218i
Devices with neodymium magnets are lighter and more powerful than those which use ferrite magnets. They also have more bass and clear high notes.

Connectivity

1.has a 3.5mm male connector
Koss Pro4S
Sennheiser HD 218i
A standard 3.5mm male connector is suitable for use with all MP3 players and computer sound cards.

Features

1.can be used as a headset
Koss Pro4S
Sennheiser HD 218i
A headset is one headphone or pair with a built-in microphone. Headsets can be used for apps that require communication i.e. Skype, games with voice chat, mobile phones, etc.
2.Has an in-line control panel
Koss Pro4S
Sennheiser HD 218i
There is a control panel on the cable, so you can easily operate the device without having to interact with it.

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