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Koss QZPro Headphones Review

Tested using Methodology v1.3.1
Reviewed Mar 04, 2016 at 12:00 am
Koss QZPro Picture
5.4
Mixed Usage
6.0
Neutral Sound
5.3
Commute/Travel
5.6
Sports/Fitness
5.4
Office
3.8
Wireless Gaming
5.5
Wired Gaming
1.6
Phone Call
Type Over-ear
Enclosure Closed-Back
Wireless No
Noise Cancelling Yes
Mic No
Transducer Dynamic

The Koss QZPro are flawed headphones that fail at delivering decent audio reproduction or adequate noise isolation. They aren't comfortable, there are no satisfactory audio controls, and the all-plastic build feels cheap and susceptible to breaking.

Our Verdict

5.4 Mixed Usage

The QZPro aren't good everyday headphones. They don't isolate well. They have a poor sound quality, and they're bulky and cumbersome, heavy and leaky for casual use.

6.0 Neutral Sound

Not good for neutral listening. They have a bass-heavy sound quality and their closed-back design limits their soundstage.

See our Neutral Sound recommendations
5.3 Commute/Travel

Not suitable for commuting. Their noise isolation is weak and doesn't block enough ambient noise for busy commutes.

See our Commute/Travel recommendations
5.6 Sports/Fitness

Not designed for sports. They have a poor control scheme and they're bulky and unstable.

See our Sports/Fitness recommendations
5.4 Office

Not good for office use. They have a poor control scheme, they're not too comfortable and poorly isolate listeners. On the upside, they don't leak too much.

See our Office recommendations
5.5 Wired Gaming
1.6 Phone Call
  • 5.4 Mixed Usage
  • 6.0 Neutral Sound
  • 5.3 Commute/Travel
  • 5.6 Sports/Fitness
  • 5.4 Office
  • 3.8 Wireless Gaming
  • 5.5 Wired Gaming
  • 1.6 Phone Call
Pros
  • Doesn't leak much sound.
Cons
  • Unbalanced and poor audio reproduction.
  • All-plastic build quality feels cheap.
  • Poor noise cancellation.
  1. Update 11/21/2019: Converted to Test Bench 1.3.1.
  2. Update 11/21/2019: Converted to Test Bench 1.3.
  3. Update 2/16/2018: Converted to Test Bench 1.2.
  4. Update 8/10/2017: Converted to Test Bench 1.1.
  5. Update 3/1/2017: Converted to Test Bench 1.0.

Check Price

Test Results

Design
Design
Style

The QZPro look a little cheap. The two-tone color scheme is aesthetically pleasing but the low-grade plastic and odd hinge reduce their appeal significantly. The matte, silver ear cups are circular and coated with a soft black padding. The headband is lightly padded but oddly shaped due to the hinge and may be a turn off for some.

5.5
Design
Comfort
Weight 0.64 lbs
Clamping Force
1.44 lbs

The Koss QZPro are not very comfortable. The headband and ear cup design is a little cumbersome and stiff and doesn't extend very well for larger heads. The ear cups, although decently padded, oddly don't provide a good seal, leaving gaps that feel uncomfortable and let sound leak in and out.

5.0
Design
Controls
OS Compatibility
Not OS specific
Ease Of Use Poor
Feedback Poor
Call/Music Control No
Volume Control Yes
Microphone Control N/A
Channel Mixing
N/A
Noise Cancelling Control N/A
Talk-Through
N/A
Additional Buttons No

Button layout is very limited on the QZPro, with just one switch to activate the noise cancelling. It's simple but looks and feels a little cheap. The audio cable, which isn't detachable or interchangeable, only has a volume slider, which is disappointing.

N/A
Design
Breathability
Avg.Temp.Difference N/A
6.0
Design
Portability
L 4.72 "
W 6.30 "
H 3.35 "
Volume 99.66 Cu. Inches
Transmitter Required N/A

The QZPro are somewhat portable. They have a unique folding mechanism that allows them to collapse into a compact format. However, they're on the larger side for over-ear headphones and will still take up quite a bit of space in a bag. They won't fit in a pocket and are too cumbersome to carry around on your person. They also do not come with a case or carrying pouch, which is disappointing.

0
Design
Case
Type No case
L N/A
W N/A
H N/A
Volume N/A
6.0
Design
Build Quality

Build quality is just passable. The QZPro look and feel cheap. The joints are made of dense plastic that feels moderately solid but also makes the hinges stiff. The headband, however, doesn't feel very solid and once on, adjusting the ear cups is very cumbersome. The sliding mechanism to extend the headband doesn't feel durable and doesn't extend very far. The padding on the ear cups and the headband is soft but looks susceptible to wear and tear.

6.5
Design
Stability
Design
Headshots 1
Design
Headshots 2
Design
Top
Design
In The Box

  • Koss Quiet Zone Pro Headphones
  • Airline adapter
  • Manual

Sound
Sound
Sound Profile
Bass Amount
-3.33 db
Treble Amount
-8.72 db
8.4
Sound
Frequency Response Consistency
Avg. Std. Deviation
0.31 dB
Sound
Raw Frequency Response
5.3
Sound
Bass Accuracy
Std. Err.
6.41 dB
Low-Frequency Extension
40.58 Hz
Low-Bass
-4.84 dB
Mid-Bass
7.13 dB
High-Bass
8.08 dB
5.6
Sound
Mid Accuracy
Std. Err.
5.87 dB
Low-Mid
7.26 dB
Mid-Mid
5.5 dB
High-Mid
3.13 dB
3.5
Sound
Treble Accuracy
Std. Err.
7.56 dB
Low-Treble
-9.46 dB
Mid-Treble
-5.31 dB
High-Treble
-5.75 dB
5.9
Sound
Peaks/Dips
Peaks
2.63 db
Dips
2.73 db
8.4
Sound
Imaging
Weighted Group Delay
0.43
Weighted Amplitude Mismatch
0.19
Weighted Frequency Mismatch
2.66
Weighted Phase Mismatch
3.81
6.7
Sound
Soundstage
PRTF Accuracy (Std. Dev.)
2.74 dB
PRTF Size (Avg.)
5.37 dB
PRTF Distance
15.48 dB
Openness
5.5
Acoustic Space Excitation
3.1
6.1
Sound
Weighted Harmonic Distortion
WHD @ 90
0.764
WHD @ 100
0.762
Isolation
4.4
Isolation
Noise Isolation
Isolation Audio
Overall Attenuation
-10.4 dB
Bass
-0.16 dB
Mid
-7.38 dB
Treble
-24.21 dB

Poor isolation overall. The passive isolation is decent, but starts relatively late - at around 800Hz - and only providing -30db (the minimum acceptable value) at 10kHz. The active noise cancelling performance is even worse, starting to work above 100Hz and barely crossing 10dB of reduction at 400Hz.

7.5
Isolation
Leakage
Leakage Audio
Overall Leakage @ 1ft
36.74 dB

Very good leakage performance. If they fit well and you get a good seal, listening at moderate volumes won't bother the people around you.

Microphone
Microphone
Microphone Style
Integrated
N/A
In-line
N/A
Boom
N/A
Detachable Boom
N/A
0
Microphone
Recording Quality
Recorded Speech
N/A
LFE
N/A
FR Std. Dev.
N/A
HFE
N/A
Weighted THD
N/A
Gain
N/A
0
Microphone
Noise Handling
Speech + Pink Noise N/A
Speech + Subway Noise N/A
SpNR
N/A
Active Features
7.7
Active Features
Battery
Battery Type
AAA
Continuous Battery Life
40 hrs
Additional Charges
N/A
Total Battery Life
40 hrs
Charge Time
N/A
Power Saving Feature
No
Audio While Charging
N/A
Passive Playback
No
Charging Port N/A

The Quiet Zone Pro can last up to 40 hours of continuous playtime at average volumes. This gives them an above-average battery life and means you won't have to change the triple AAA battery as often, which is great for long flights or road trips. Unfortunately, they do not have any battery-saving features like an auto-off timer but can continue playing audio even when the battery is completely drained.

0
Active Features
App Support
App Name N/A
iOS N/A
Android N/A
macOS N/A
Windows N/A
Equalizer
N/A
ANC Control
N/A
Mic Control N/A
Room effects
N/A
Playback Control
N/A
Button Mapping N/A
Surround Sound N/A

No compatible app.

Connectivity
0
Connectivity
Bluetooth
Bluetooth Version
N/A
Multi-Device Pairing
N/A
NFC Pairing
N/A
Line of Sight Range
N/A
Default Latency
N/A
aptX Latency
N/A
aptX(LL) Latency
N/A
0
Connectivity
Non-Bluetooth Wireless
Non-BT Line of Sight Range
N/A
Non-BT Latency
N/A
9.0
Connectivity
Wired
Analog Audio
Yes
USB Audio
No
Detachable No
Length 4.07 ft
Connection 1/8" TRS
Wired Latency
0 ms
Connectivity
PC / PS4 Compatibility
PC / PS4 Analog
Audio Only
PC / PS4 Wired USB
No
PC / PS4 Non-BT Wireless
No
Connectivity
Xbox One Compatibility
Xbox One Analog
Audio Only
Xbox One Wired USB
No
Xbox One Wireless
No
0
Connectivity
Base/Dock
Type
N/A
USB Input
N/A
Line In
N/A
Line Out
N/A
Optical Input
N/A
RCA Input
N/A
Dock Charging
N/A
Power Supply
N/A

Koss QZPro Price

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