Reviewed on Dec 12, 2016

AKG K240 MKII HEADPHONES REVIEW

Usage Ratings - Version 1.3
5.1
Mixed Usage
7.1
Neutral Listening
4.4
Commute/Travel
4.9
Sports/Fitness
5.1
Office
4.4
Wireless Gaming
6.2
Wired Gaming
1.6
Phone Call
Type : Over-ear
Enclosure : Semi-Open
Wireless : No
Noise-Cancelling : No
Mic : No
Transducer : Dynamic

The AKG K240 MKII are semi-open, critical listening headphones with an above-average sound. They're comfortable to wear and deliver an immersive audio reproduction. Unfortunately, they're not the most versatile headphones. They perform poorly in loud environments and their bulky, cumbersome build is a bit unstable on the head.

Test Results
Design 5.7
Isolation 2.4
Microphone 0
Active Features 0
Connectivity 3.8
Pros
  • Above-average audio reproduction.
  • Lightweight and comfortable design.
Cons
  • Very sensitive to ambient noise, by design.
  • High leakage, by design.
  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.

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K240 MKII
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B&H
5.7

Design

The AKG K240 MKII have the typical look and feel of the AKG K series. They have semi-open, circular ear cups and a retro headband design that creates a comfortable listening experience. However, the materials used in their build feels considerably cheaper than the K701 or K702. They're also not the most practical headphones. They're big and bulky and do not come with a case or pouch. They will also fall if you tilt your head too far back, so they won't be the ideal headphones to use while doing sports (see our recommendations for the best headphones for working out).

Style

The K240 MKII have a similar design to the rest of the K series. They keep the familiar old-school headband and circular ear cups, but the materials used in this build do not feel as premium as those used on the K702 and K712 PRO. They also have a pretty bland color scheme, but the understated look may work for some. Overall these are decent looking headphones, but they feel a bit cheap.

7.5 Comfort
Weight : 0.53 lbs
Clamping Force
:
0.7 lbs

The K240 MKII have a pretty comfortable design. They're quite lightweight for their size and they're not too tight on the the head. Also the ear cups are sufficiently well padded that they won't cause any soreness during long listening sessions. However, the circular shape and size of the ear cups do not always fit well around larger ears. Also, the lack of padding on the headband slightly decreases their comfort level but isn't particularly noticeable once you have the headphones on.

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
6.9 Breathability
Avg.Temp.Difference : 4.3 C
5.1 Portability
L : 9 "
W : 7.13 "
H : 4.13 "
Volume : 265 Cu. Inches
Transmitter required : N/A

The K240 MKII are not portable headphones. They have a bulky design that doesn't fold or have ear cups that lay flat to take less space. They will be a hassle to carry around on your person and will only fit into larger bags. They also don't come with a case so keeping them in your bag with other items might not be the best way to transport them.

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

Decent build quality. The MKII have a similar design to the AKG K701 and K702. They have moderately dense circular ear cups that can survive a couple of drops without being damaged. However, like the rest of the K-series, the headband has a lot of moving parts that will deteriorate over time with regular wear and tear.

5.0 Stability

These headphones are not designed to provide a stable fit during physical activity. The slack headband isn't too tight on the head, which is good for comfort but unfortunately, makes the fit unstable in most situations. They're a little bulky and cumbersome and will fall if you tilt your head too far back during casual listening sessions. Therefore they won't be good headphones to exercise with. The cable is detachable but locks into the ear cups, so it will still yank the headphones off your head if hooked on something.

Headshots 1
Headshots 2
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Sound

They have a mediocre Bass that lacks thump and sounds boomy, a good Mid Range that sounds slightly muddy, and a good Treble that could sound sharp on certain tracks. They also have a relatively open Soundstage due to their semi-open design. However, they are sensitive to placement and their performance could vary from person to person.

Sound Profile
Neutral
:
6.8
Bass-Heavy
:
2.8
Warm
:
7.8
Bright
:
4.6
6.9 Peaks/Dips
Peaks
:
2.15 db
Dips
:
1.22 db
6.9 Frequency Response Consistency
Avg. Std. Deviation
:
0.65 dB
8.4 Imaging
Weighted Group Delay
:
0.24
Weighted Amplitude Mismatch
:
0.49
Weighted Frequency Mismatch
:
1.83
Weighted Phase Mismatch
:
9.75
8.1 Soundstage
PRTF Accuracy (Std. Dev.)
:
4.09 dB
PRTF Size (Avg.)
:
4.54 dB
PRTF Distance
:
15.14 dB
Openness
:
9.4
Acoustic Space Excitation
:
7.3
6.6 Weighted Harmonic Distortion
WHD @ 90
:
0.212
WHD @ 100
:
0.887
2.4

Isolation

These headphones are semi-open by design, which means they won't be the ideal headphones to block the ambient noise of loud environments. They immerse you within your surroundings, which helps their sound quality in a quiet room but makes them practically unusable outdoors or while commuting. They also leak quite a bit not as much as fully open headphones but enough to still be distracting to those around you even at lower volumes.

1.7 Noise Isolation
Isolation Audio
:
Overall Attenuation
:
-3.84 dB
Bass
:
0.13 dB
Mid
:
1.38 dB
Treble
:
-12.66 dB

Poor leakage. Although these headphones are marketed as semi-open, their isolation is on par with fully open headphones. Therefore, they provide no isolation up to 2KHz, and the isolation they achieve above 2KHz is well below average.

3.7 Leakage
Leakage Audio
:
Overall Leakage @ 1ft
:
55.29 dB

Poor leakage. These headphones leak a considerable amount, due to the semi-open-back design. The majority of the leakage is between 500Hz and 10KHz which is a broad range. The level of the leakage is also quite high.

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.

3.8

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
9.5 Wired
Analog Audio
:
Yes
USB Audio
:
No
Detachable : Yes
Length : 9.45 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

  • AKG K240 MKII Headphones
  • 1/8" to 1/4" Adapter
  •  Ear-cup cushions (x2)
  • Audio cable (x2)
  • Manual

Compared to other Headphones

Conclusion

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B&H
5.1 Mixed Usage

The K240 MKII are critical listening headphones that are not versatile enough for other use cases. They're comfortable and deliver a good sound. However, they can't practically be used outdoors or in loud environments. They're also bulky headphones to carry around on your person, and will easily fall off your head if used while doing any sort of exercise.

7.1 Neutral Listening

The K240 MKII are built to be neutral listening headphones that deliver an immersive audio reproduction. They have a great soundstage for a semi-open design and reproduce instruments and vocals well enough to please most neutral listners. However, they lack a bit of bass and do not sound as crisp and clean as some of the other models in AKG K series

4.4 Commute/Travel

Not designed for commuting. They have semi-open ear cups that let the ambient noise of your surroundings seep into your audio. Hence in loud environments like a bus or train, they will not perform well.

4.9 Sports/Fitness

Not meant for sports. They're big and bulky and difficult to carry around on your person. They're also quite unstable and will quickly fall off your head if used while running.

5.1 Office

Subpar for office use. They leak a lot, which means people will be able to hear what you're listening to. They also don't block enough noise for lively offices.

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