Reviewed on Apr 26, 2016

Koss UR20 HEADPHONES REVIEW

Usage Ratings - Version 1.3
5.1
Mixed Usage
6.6
Neutral Listening
4.8
Commute/Travel
4.4
Sports/Fitness
5.5
Office
4.0
Wireless Gaming
5.9
Wired Gaming
1.6
Phone Call
Type : Over-ear
Enclosure : Closed-Back
Wireless : No
Noise-Cancelling : No
Mic : No
Transducer : Dynamic

The Koss UR-20 are below-average headphones that perform poorly in most of our test categories. They are moderately comfortable but have a weak, unexciting sound and leak quite a bit. People around you will hear your audio at high volumes, and they only provide passive isolation from ambient noise.

Test Results
Design 5.2
Isolation 4.5
Microphone 0
Active Features 0
Connectivity 3.6
Pros
  • Comfortable.
  • Lightweight over-ear design.
Cons
  • Poor noise isolation.
  • leaks a lot.
  • Below-average audio reproduction.
  • No audio controls.
  • Bass and treble delivery varies significantly across users. Sensitive to glasses.
  1. Update 11/6/2019: Converted to Test Bench 1.3.
  2. Update 2/16/2018: Converted to Test Bench 1.2.
  3. Update 8/10/2017: Converted to Test Bench 1.1. Learn more about our new versioned test bench system here.

Check Price

5.2

Design

The Koss UR20 are unstable headphones that will easily slip off your head. They are a bit bulky and feel a little cheap in their build quality. They also don't have any audio controls, which is disappointing. However, they're lightweight, the large ear cups are well-padded and comfortably fit most ears, and the headband doesn't apply too much pressure to the head.

Style

The Koss UR 20 are a little bulky. They have an all-black color scheme that's a little bland. The large circular ear cups and retro-designed headband may work for some but is not visually appealing.

7.5 Comfort
Weight : 0.55 lbs
Clamping Force
:
0.77 lbs

The Koss UR20 are quite comfortable. They're lightweight and large ear cups easily fit around the ears of most listeners. The headband design is good and the padding of the ear cups is soft. Unfortunately the pressure they apply around the ears, is uneven and can be uncomfortable for some.

0 Controls
OS Compatibility
:
Not OS specific
Ease of use : N/A
Feedback : N/A
Call/Music Control : No
Volume Control : No
Microphone Control : N/A
Channel Mixing
:
N/A
Noise Canceling Control : N/A
Talk-Through
:
N/A
Additional Buttons : N/A
N/A Breathability
Avg.Temp.Difference : N/A
5.2 Portability
L : 7.87 "
W : 7.09 "
H : 4.33 "
Volume : 241.64 Cu. Inches
Transmitter required : N/A

The Koss UR20 are not portable. They're big, bulky and don't fold into a smaller format or lay flat to take up less space. They will fit in your backpack but will be too cumbersome to carry around in anything else. They also do not come with a pouch or case, which is disappointing.

0 Case
Type : No case
L : N/A
W : N/A
H : N/A
Volume : N/A
5.0 Build Quality

Build quality is average at best. The all plastic design does not feel very durable. The hinge mechanism is cheaply and poorly made. On the upside, the ear cups are relatively dense and the headband design is flexible. They can handle a fair amount of physical stress but are not as durable as some other headphones.

4.0 Stability

These headphones are not at all stable. They move as you tilt your head, which means they easily fall off your ears if you're performing any moderate activity. They also do not have a detachable cable, which may get hooked on something and pull the headphones off your head, further decreasing stability.

Headshots 1
Headshots 2
Top

Sound

They have a very good and extended bass, but a mediocre mid and treble range performance. Additionally, their bass delivery could vary noticeably from person to person, they are a bit muddy and cluttered in the low-mid region, and their treble could sound sibilant on certain tracks. Also, they have an unremarkable soundstage and a mediocre distortion performance.

Sound Profile
Neutral
:
6.8
Bass-Heavy
:
5.9
Warm
:
7.9
Bright
:
4.5
5.9 Peaks/Dips
Peaks
:
2.75 db
Dips
:
2.3 db
6.0 Frequency Response Consistency
Avg. Std. Deviation
:
0.93 dB

The frequency response consistency is mediocre-at-best. Our measurements showed some inconsistencies in bass delivery across our human subjects. The maximum amount of deviation in the bass range is about 6dB, which is noticeable. In the treble range, they show some inconsistency and seem to be sensitive to positioning and placement.

8.5 Imaging
Weighted Group Delay
:
0.22
Weighted Amplitude Mismatch
:
0.65
Weighted Frequency Mismatch
:
1.95
Weighted Phase Mismatch
:
6.3
7.1 Soundstage
PRTF Accuracy (Std. Dev.)
:
3.51 dB
PRTF Size (Avg.)
:
6.93 dB
PRTF Distance
:
17.6 dB
Openness
:
6.5
Acoustic Space Excitation
:
4.2
7.4 Weighted Harmonic Distortion
WHD @ 90
:
0.224
WHD @ 100
:
0.255
4.5

Isolation

The Koss UR 20 poorly isolate listeners. They only offer passive isolation and can block a bit of high-frequency noise. However, they fail to isolate in loud environments and easily let the ambient noise of a train or plane seep into your audio. They also leak a lot and might disturb the people around you at moderate-to-high volumes.

3.6 Noise Isolation
Isolation Audio
:
Overall Attenuation
:
-8.68 dB
Bass
:
0.61 dB
Mid
:
-4.39 dB
Treble
:
-22.55 dB

Poor isolation. These non-noise cancelling headphones block very little noise in the bass and mid regions. In the treble range, they provide a decent amount of isolation, reaching the maximum of -28dB at 8KHz.

6.3 Leakage
Leakage Audio
:
Overall Leakage @ 1ft
:
43.31 dB

Poor leakage. The overall level of leakage is on the high side and the leakage happens throughout a broad frequency range, from 300Hz to 4KHz.

0

Microphone

Integrated
:
N/A
In-line
:
N/A
Boom
:
N/A
Detachable Boom
:
N/A
0 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 Noise Handling
Speech + Pink Noise : N/A
Speech + Subway Noise : N/A
SpNR
:
N/A
0

Active Features

No active features.

N/A Battery
Battery Type
:
N/A
Continuous Battery Life
:
N/A
Additional Charges
:
N/A
Total Battery Life
:
N/A
Charge Time
:
N/A
Power Saving Feature
:
N/A
Audio while charging
:
N/A
Passive Playback
:
N/A
Charging Port : N/A
0 App Support
App Name : N/A
iOS : N/A
Android : N/A
Mac OS : 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.

3.6

Connectivity

0 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 Non-Bluetooth Wireless
Non-BT Line of Sight Range
:
N/A
Non-BT Latency
:
N/A
9.0 Wired
Analog Audio
:
Yes
USB Audio
:
No
Detachable : No
Length : 8.33 ft
Connection : 1/8" TRS
Wired Latency
:
0 ms
PC / PS4 Compatibility
PC / PS4 Analog
:
Audio Only
PC / PS4 Wired USB
:
No
PC / PS4 Non-BT Wireless
:
No
Xbox One Compatibility
Xbox Analog
:
Audio Only
Xbox Wired USB
:
No
Xbox Wireless
:
No
0 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

In the box

  • Koss UR-20 Headphones
  • 1/8" to 1/4" Adapter

Compared to other Headphones

5.1 Mixed Usage

The Koss UR20 are not good as everyday headphones. They have a poor sound, poor isolation, and a cheap, fragile design.

6.6 Neutral Listening

Average for neutral listening. They have a decently balanced sound quality but a closed back design that limits their soundstage.

4.8 Commute/Travel

Not designed for commuting. They're cumbersome to carry around and do not isolate from ambient noise effectively. You will easily hear your surroundings, and these are not open back headphones.

4.4 Sports/Fitness

Not made for sports. The Koss UR 20 are bulky and big and don't have a decent control scheme. They will quickly fall off your head during exercise.

5.5 Office

The Koss UR20 are not good for office use. The poor seal of the earcups allows the chatter of even a moderately loud office to seep into your audio. Also, they leak quite a bit

Recommended Articles

LOG IN

JOIN RTINGS.com

Be part of the most informed community and take advantage of our advanced tools to find the best product for your needs.
Join our mailing list:
Become an insider

Unlimited access to full product reviews, test measurements and scores

test table UI

Product prices across the site on reviews, tables and tools

product prices UI

Additional votes for our
next reviews

Additional votes UI

Early Access
to our reviews and test measurements

Early Access UI

Create Discussion