61points

Koss QZ900

37points

Koss QZPRO

Comparison winner
Koss QZ900
Koss QZPRO
vs
vs

16 facts in comparison

Koss QZ900 vs Koss QZPRO

Koss QZ900
Koss QZPRO
61
points
Koss QZ900
37
points
Koss QZPRO

Why is Koss QZ900 better than Koss QZPRO?

  • 20Hz lower low-frequency
    ?

    20Hzvs40Hz
  • Has passive noise reduction
    ?
  • 10dB/mW higher sound pressure level
    ?

    100dB/mWvs90dB/mW
  • Has a detachable cable
    ?
  • Can be folded
    ?
  • Has an in-line control panel
    ?
  • Travel bag is included
    ?
  • Has a removable battery
    ?

Why is Koss QZPRO better than Koss QZ900?

Price comparison

Design

1.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.

Koss QZ900
Koss QZPRO
2.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.

Koss QZ900
Koss QZPRO
3.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.

Koss QZ900
Koss QZPRO
4.can be folded
?

Foldable devices are easier to transport and take up less storage space.

Koss QZ900
Koss QZPRO
5.travel bag is included
?

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

Koss QZ900
Koss QZPRO
6.cable length
?

A long cable ensures more freedom of movement.

Best

Pioneer SE-A1000

6m

1.2m

1.2m

Sound quality

1.highest frequency
?

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

20000Hz

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.

Best

Sony MH1CBLK

1Hz

20Hz

40Hz

3.sound pressure level
?

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

Best

AKG K553 Pro

144dB/mW

100dB/mW

90dB/mW

4.has passive noise reduction
?

The device sits tightly in place, creating an acoustic seal which reduces background noise and prevents your music from leaking out.

Koss QZ900
Koss QZPRO
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.

Best

Flips Solo 2 Social

4 Ohms

32 Ohms

32 Ohms

6.has active noise cancelling (noise control)
?

This type of device allows you to listen at lower volume levels, causing less ear fatigue as you don't have to crank up the volume to overcome background noise. Ideal for plane rides and morning commutes.

Koss QZ900
Koss QZPRO

Power

1.has a removable battery
?

The battery is removable and can be replaced by the user if broken.

Koss QZ900
Koss QZPRO

Connectivity

1.has a 3.5mm male connector
?

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

Koss QZ900
Koss QZPRO

Features

1.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.

Koss QZ900
Koss QZPRO

Which are the best headphones?

Show all
This page is currently only available in English.