47points

Beyerdynamic DT 990 Edition

51points

Koss PRO4AAT

Beyerdynamic DT 990 Edition
Comparison winner
Koss PRO4AAT
vs
vs

16 facts in comparison

Beyerdynamic DT 990 Edition vs Koss PRO4AAT

Beyerdynamic DT 990 Edition
Koss PRO4AAT
Beyerdynamic DT 990 Edition
Koss PRO4AAT
47
points
51
points

Why is Beyerdynamic DT 990 Edition better than Koss PRO4AAT?

  • 5Hz lower low-frequency
    5Hzvs10Hz
  • Has a neodymium magnet
  • Has a tangle free cable
  • Has an open-back design

Why is Koss PRO4AAT better than Beyerdynamic DT 990 Edition?

  • Has sound isolation/passive noise reduction
  • Has stereo speakers
  • Can be folded
  • Travel bag is included
  • Has a coiled cord

Top specs and features

Design

1.has stereo speakers
Beyerdynamic DT 990 Edition
Koss PRO4AAT

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
Beyerdynamic DT 990 Edition
Koss PRO4AAT

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 tangle free cable
Beyerdynamic DT 990 Edition
Koss PRO4AAT

The cable is designed to minimize tangling.

4.can be folded
Beyerdynamic DT 990 Edition
Koss PRO4AAT

Folding devices are good for transporting as they take up less space in your bag.

5.travel bag is included
Beyerdynamic DT 990 Edition
Koss PRO4AAT

The device comes with its own special case or pouch, which is useful for safe transportation.

6.has a coiled cord
Beyerdynamic DT 990 Edition
Koss PRO4AAT

A coiled cord typically offers more flexibility as it can be extended, and taken outside for example.

Sound quality

1.highest frequency

35000Hz

25000Hz

The highest frequency at which device produces audio. The higher the high-frequency response, the clearer and crispier the treble.

Best

Sony MDR-Z1R

120000Hz

2.lowest frequency

5Hz

10Hz

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

Best

Sony MH1CBLK

1Hz

3.has sound isolation/passive noise reduction
Beyerdynamic DT 990 Edition
Koss PRO4AAT

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

96dB/mW

95dB/mW

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

Best

AKG K553 Pro

144dB/mW

5.impedance

250 Ohms

250 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.

Best

Flips Solo 2 Social

4 Ohms

6.has a neodymium magnet
Beyerdynamic DT 990 Edition
Koss PRO4AAT

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
Beyerdynamic DT 990 Edition
Koss PRO4AAT

A standard 3.5mm male connector is suitable for use with all MP3 players and computer sound cards.

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