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Koss KDE250 Review | 93 Data compared

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  • Avg. price in UK: ~£220
  • Avg. price in US: ~$250
  • Form factor: in-ear
  • Connectivity: wired
  • Battery life: N/A hours
  • Active noise cancellation (ANC): no

Koss KDE250 review. Compare 93 technical specifications and user reviews to see how it ranks among headphones and if it is worth buying.

4.0

Overall score

What it is: An overall evaluation of the headphones' quality, based on technical analyses and user reviews.

When it matters: When you need a quick reference to identify the best headphones on the market.

Score components:

80.0%

3.7

Technical Score

20.0%

5.2

User score

Poor
3.7

Technical Score

What it is: An assessment of the headphones' technical performance, covering key areas such as sound quality, noise cancelling, microphone performance, battery life, comfort, connectivity, features, and build quality.

When it matters: When you want to compare headphones based on technical performance and available features.

Score components:

52.0%

2.2

Sound

20.0%

4.1

Features

10.0%

8.1

Design

8.0%

6.2

Connectivity

6.0%

3.7

Battery

4.0%

4.1

Calls & Controls

Poor
5.2

User score

What it is: A rating that combines user reviews and the total number of reviews received by the headphones.

When it matters: When you want to understand how headphones perform in real listening and how reliable they are in terms of comfort, audio quality, battery life, and long-term use.

Score components:

70.0%

6.6

User reviews

30.0%

1.8

Popularity

User score:
United Kingdom
amazon
3.3
(10)
United States
Amazon_logo.png
3.3
(10)

(Reviews last updated: June 2026)

Good
  • 2.1
    Gaming

    Score components:

    35.0%

    0.0

    Audio latency

    25.0%

    0.0

    Low-latency game mode

    20.0%

    10

    Can be used as a headset

    12.0%

    1.0

    Noise-canceling microphone

    8.0%

    0.0

    Battery life

  • 3.2
    Travel

    Score components:

    28.0%

    1.0

    Active noise cancellation (ANC)

    24.0%

    0.0

    Battery life

    18.0%

    9.8

    Weight

    16.0%

    0.0

    Multipoint support

    14.0%

    8.0

    Ambient sound mode

  • 2.7
    Calls

    Score components:

    28.0%

    1.0

    Noise-canceling microphone

    24.0%

    10

    Can be used as a headset

    18.0%

    0.0

    Multipoint support

    16.0%

    0.0

    Battery life

    14.0%

    0.0

    Companion app

  • 6.9
    Workout

    Score components:

    28.0%

    9.8

    Weight

    24.0%

    9.0

    Water resistance

    20.0%

    4.0

    IP rating

    16.0%

    0.0

    Battery life

    12.0%

    10

    Can be used as a headset

  • No image
No image

Best prices in UK

Best rankings

?

Available: ranking among products currently available (including other versions of this product).
All: ranking among all products in the database.

Verdict

The Koss KDE250 is a unique dual-element ear-clip headphone featuring a 20mm low-frequency transducer and a 13mm mid-high frequency transducer mounted at perpendicular angles. Its technical specifications include a frequency response of 40Hz–20kHz, 16 ohms impedance, and a sensitivity of 95 dB SPL, making it easy to drive with portable devices. Main characteristics include a highly customisable fit via a knurled height-adjustment knob and a hinge mechanism that modifies the transducer's attack angle into the ear canal. Pros include impressive openness, transparency, and a midrange-forward sound signature that allows for ambient awareness while listening. However, notable cons include a lack of deep bass extension, minimal noise isolation due to its open design, and a finicky fit that some users find difficult to secure comfortably.

Technical Specifications of Koss KDE250

Technical Score

What it is: An assessment of the headphones' technical performance, covering key areas such as sound quality, noise cancelling, microphone performance, battery life, comfort, connectivity, features, and build quality.

When it matters: When you want to compare headphones based on technical performance and available features.

Score components:

52.0%

2.2

Sound

20.0%

4.1

Features

10.0%

8.1

Design

8.0%

6.2

Connectivity

6.0%

3.7

Battery

4.0%

4.1

Calls & Controls

3.7
Koss KDE250 has a technical score of 3.67 points, which is lower than that of 91.2% of products in this category.
User score

What it is: A rating that combines user reviews and the total number of reviews received by the headphones.

When it matters: When you want to understand how headphones perform in real listening and how reliable they are in terms of comfort, audio quality, battery life, and long-term use.

Score components:

70.0%

6.6

User reviews

30.0%

1.8

Popularity

User score:
United Kingdom
amazon
3.3
(10)
United States
Amazon_logo.png
3.3
(10)

(Reviews last updated: June 2026)

5.2
Koss KDE250 has a user score of 5.16 points, which is lower than that of 98.4% of products in this category.
Popularity
What it is: An indicator based on the number of reviews received by the headphones.
When it matters: When you prefer headphones that have already been chosen and reviewed by many other users.
1.8
Koss KDE250 has a popularity of 1.8 points, which is lower than 68.3% of products in this category.
Ratio quality/price

What it is: An indicator that combines the headphones' overall rating with their cost.

When it matters: When you are looking for headphones that offer a strong balance of performance, features, and price.

Score components:

60.0%

4.0

Overall score

40.0%

9.4

Price

5.6
Koss KDE250 has a quality-to-price ratio of 5.6 points, which is lower than 90.7% of products in this category.
Active noise cancellation (ANC)
What it is: Reduces background noise using active technology
When it matters: When blocking office, travel, or aircraft noise is a priority.

Importance: HIGH

no
Koss KDE250 does not support active noise cancellation. 27.4% of headphones support active noise cancellation.
Driver type
What it is: Type of speaker driver technology used
When it matters: When the underlying sound character and driver technology matter to you.

Importance: MEDIUM

dynamic
Driver size
What it is: Diameter of the speaker driver unit
When it matters: When you want extra hardware context behind how the headphones may handle bass weight, scale, or overall presentation.

Importance: MEDIUM

20 mm
Koss KDE250 uses a driver size of 20 mm, smaller driver size than 82.3% of headphones.
Number of drivers
What it is: Total number of speaker drivers per earcup
When it matters: When multi-driver designs are part of your buying criteria.

Importance: LOW

2
Koss KDE250 uses 2 drivers, more drivers than 96% of headphones and equal to 2.5% of headphones.
Lowest frequency
What it is: Lowest audio frequency the headphones can reproduce
When it matters: When deeper bass extension matters for your music or movie listening.

Importance: MEDIUM

Good value: <=10 Hz

40 Hz
Koss KDE250 reaches a lowest frequency of 40 Hz, higher lowest frequency than 99.2% of headphones and equal to 0.3% of headphones.
Show more
Noise-canceling microphone
What it is: Built-in microphone reduces background noise during calls
When it matters: When you take calls in busy spaces and want your voice to stay clearer.

Importance: MEDIUM

no
Koss KDE250 does not support a noise-canceling microphone. 45.6% of headphones support noise-canceling microphones.
Can be used as a headset
What it is: Shows whether the headphones can handle voice chat and calls in addition to normal audio playback.
When it matters: When one pair needs to cover music, calls, meetings, and gaming chat.

Importance: MEDIUM

yes
Koss KDE250 is headset-ready, 84.7% is not. 15.3% of headphones can be used as headsets.
Number of microphones
What it is: Total number of built-in microphones
When it matters: When call pickup quality and beamforming support matter to you.

Importance: LOW

Good value: >=2

N/A
Boom microphone
What it is: Includes detachable boom microphone for voice clarity
When it matters: When you need stronger voice clarity for gaming, streaming, or work calls.

Importance: LOW

no
Koss KDE250 does not include a boom microphone. 15.6% of headphones have a boom microphone.
Microphone SNR
What it is: Signal-to-noise ratio of the microphone
When it matters: When call clarity matters and you want your voice picked up more cleanly instead of buried in background hiss.

Importance: LOW

Good value: >80 dB

N/A
Show more
Connectivity
What it is: Available connection methods (wired, wireless, Bluetooth, etc.)
When it matters: When the headphones need to match how you listen across wired and wireless devices.

Importance: HIGH

wired
Koss KDE250 supports wired connectivity, equal to 52.6% of headphones.
Bluetooth version
What it is: Version of Bluetooth technology supported
When it matters: When wireless stability, efficiency, and feature support matter more than treating Bluetooth as a box-check spec.

Importance: MEDIUM

Good value: >=5.0

N/A
Maximum Bluetooth range
What it is: Maximum wireless operating distance from source device
When it matters: When you move around rooms and want fewer dropouts from your source device.

Importance: LOW

Good value: >=10 m

N/A
Audio latency
What it is: Delay between audio and video in wireless mode
When it matters: When you watch video or play games and need sound to stay in sync.

Importance: HIGH

Good value: <60 ms

N/A
Multipoint support
What it is: Supports simultaneous connections to multiple devices
When it matters: When you switch often between a phone and a laptop during the day.

Importance: MEDIUM

N/A
Show more
Ambient sound mode
What it is: Allows external sounds to pass through for awareness
When it matters: When you need to stay aware of traffic, voices, or announcements.

Importance: MEDIUM

?
EQ support
What it is: Allows customization of sound profile via equalizer
When it matters: When the stock tuning is not enough and you want to shape bass, mids, or treble to match your taste.

Importance: MEDIUM

no
Koss KDE250 does not support EQ customization. 23.3% of headphones support EQ.
Companion app
What it is: Dedicated mobile app for customization and updates
When it matters: When software customization, updates, and extra controls matter.

Importance: MEDIUM

N/A
Adjustable ANC levels
What it is: Allows adjustment of noise cancellation intensity levels
When it matters: When you move between quiet rooms, offices, streets, and public transport and do not want one ANC setting for every situation.

Importance: LOW

Good value: >=4

N/A
Voice assistant support
What it is: Compatible with voice assistants like Siri, Alexa, or Google Assistant
When it matters: When hands-free control is part of your daily routine.

Importance: LOW

no
Koss KDE250 does not support voice assistants. 60.9% of headphones support voice assistants.
Show more
Battery life
What it is: Playback time on a single charge
When it matters: When you commute, travel, or work long shifts and do not want charging breaks to interrupt listening.

Importance: HIGH

Good value: >45 hours

N/A
Battery life with ANC
What it is: Playback time with active noise cancellation enabled
When it matters: When you plan to keep noise cancellation on for most of the day.

Importance: HIGH

Good value: >40 hours

N/A
Charging time
What it is: Time required for a full battery charge
When it matters: When you often need the headphones ready again after short breaks.

Importance: MEDIUM

Good value: <=2 hours

N/A
Quick charge
What it is: Provides quick playback time with short charging period
When it matters: When a short top-up needs to deliver useful playback before you leave.

Importance: MEDIUM

N/A
Battery capacity
What it is: Total energy storage of the internal battery
When it matters: When you are estimating how much battery headroom the design may have before relying only on the official runtime claim.

Importance: MEDIUM

Good value: >=720 mAh

N/A
Show more
Brand name
What it is: The manufacturer or brand of the product.
When it matters: When you prefer a specific ecosystem, support network, or design philosophy.

Importance: MEDIUM

Koss
Form factor
What it is: Overall design type of the headphones (over-ear, on-ear, in-ear, etc.)
When it matters: When comfort, portability, and isolation depend on the overall headphone style.

Importance: HIGH

in-ear
Weight
What it is: Total weight of the headphones
When it matters: When long listening sessions make wearing comfort more important.

Importance: MEDIUM

Good value: <150 g

27 g
Koss KDE250 weighs 27 g, lighter than 83.3% of headphones and equal to 0.1% of headphones.
Acoustic design
What it is: Type of acoustic design (open-back, closed-back, semi-open)
When it matters: When you need the right balance of isolation, leakage, and soundstage.

Importance: HIGH

open-back
Clamp force
What it is: Amount of clamping pressure applied to the head
When it matters: When comfort and fit security matter during long sessions.

Importance: MEDIUM

N/A
Show more

Koss KDE250 vs the average headphone

  • 87.6% lower weight
    Koss KDE250 is lighter than the average headphone (27 g vs 218 g). The average pair of headphones weighs 218 g.
    What it is: Total weight of the headphones
    When it matters: When long listening sessions make wearing comfort more important.

    Importance: MEDIUM

    Good value: <150 g

    Koss KDE250 is lighter than the average headphone (27 g vs 218 g). The average pair of headphones weighs 218 g.27 g vs 218 g
  • Direct 3.5 mm plug
    Koss KDE250 includes a direct 3.5 mm plug, the average headphone does not. 38.8% of headphones have a 3.5 mm male connector.
    What it is: Shows whether the headphones end in a built-in 3.5 mm male plug instead of relying on a separate detachable cable.
    When it matters: When direct wired compatibility with older devices or adapters matters.

    Importance: MEDIUM

    Koss KDE250 includes a direct 3.5 mm plug, the average headphone does not. 38.8% of headphones have a 3.5 mm male connector.
  • In-line controls
    Koss KDE250 includes in-line controls, the average headphone does not. 36.4% of headphones support in-line controls.
    What it is: Controls available on in-line remote of wired cable
    When it matters: When your wired setup depends on cable-mounted buttons or call controls.

    Importance: LOW

    Koss KDE250 includes in-line controls, the average headphone does not. 36.4% of headphones support in-line controls.
  • Open-back design
    Koss KDE250 uses an open-back design, while the average headphone does not. 9.3% of headphones have an open-back design.
    What it is: Shows whether the headphones use an open-back housing that lets air and sound pass through more freely than a closed design.
    When it matters: When you listen in quiet places and care more about spacious sound than blocking outside noise or preventing sound leakage.

    Importance: MEDIUM

    Koss KDE250 uses an open-back design, while the average headphone does not. 9.3% of headphones have an open-back design.
  • 87.6% lower weight
    Koss KDE250 is lighter than the average headphone (27 g vs 218 g). The average pair of headphones weighs 218 g.
  • Open-back design
    Koss KDE250 uses an open-back design, while the average headphone does not. 9.3% of headphones have an open-back design.
  • Direct 3.5 mm plug
    Koss KDE250 includes a direct 3.5 mm plug, the average headphone does not. 38.8% of headphones have a 3.5 mm male connector.
  • In-line controls
    Koss KDE250 includes in-line controls, the average headphone does not. 36.4% of headphones support in-line controls.

Total
Design
Connectivity
Calls & Controls
  • Fixed cable
    Koss KDE250 has a fixed cable, while the average headphone has a detachable one. 62% of headphones have a detachable cable.
  • Tangle-prone cable
    Koss KDE250 uses a tangle-prone cable, while the average headphone is easier to manage. 64.2% of headphones use a tangle-free cable.
  • No passive noise reduction
    Koss KDE250 does not offer passive noise reduction, while the average headphone does. 82.7% of headphones have passive noise reduction.
  • 20 mm smaller driver size
    Koss KDE250 has smaller driver size than the average headphone (20 mm vs 40 mm). The average headphones use a driver size of 40 mm.
  • 7 dB/mW lower sensitivity
    Koss KDE250 has a lower sensitivity than the average headphone (95 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
  • 22 Hz weaker bass extension
    Koss KDE250 has a higher lowest frequency than the average headphone (40 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
  • 15 dB lower max SPL
    Koss KDE250 has a lower max SPL than the average headphone (95 dB vs 110 dB). The average headphones reach a max SPL of 110 dB.
  • 8 dB SPL lower sound pressure level
    Koss KDE250 has a lower sound pressure level than the average headphone (95 dB SPL vs 103 dB SPL). The average headphones reach a sound pressure level of 103 dB SPL.
  • 1 fewer drivers
    Koss KDE250 has fewer drivers than the average headphone (2 vs 1). The average headphones use 1 drivers.
  • No voice assistant support
    Koss KDE250 does not support voice assistants, the average headphone does. 60.8% of headphones support voice assistants.
  • 8 years older release date
    Koss KDE250 was released earlier than the average headphone (2,009 vs 2,017). The average headphones were released in 2,017.
    September 2009
  • No passive noise reduction
    Koss KDE250 does not offer passive noise reduction, while the average headphone does. 82.7% of headphones have passive noise reduction.
    What it is: Shows whether the headphones reduce outside noise through physical sealing, fit, and materials rather than active electronics.
    When it matters: When you want better isolation from fit and seal alone, even with ANC turned off or not available.

    Importance: MEDIUM

    Koss KDE250 does not offer passive noise reduction, while the average headphone does. 82.7% of headphones have passive noise reduction.
  • 20 mm smaller driver size
    Koss KDE250 has smaller driver size than the average headphone (20 mm vs 40 mm). The average headphones use a driver size of 40 mm.
    What it is: Diameter of the speaker driver unit
    When it matters: When you want extra hardware context behind how the headphones may handle bass weight, scale, or overall presentation.

    Importance: MEDIUM

    Koss KDE250 has smaller driver size than the average headphone (20 mm vs 40 mm). The average headphones use a driver size of 40 mm.20 mm vs 40 mm
  • No voice assistant support
    Koss KDE250 does not support voice assistants, the average headphone does. 60.8% of headphones support voice assistants.
    What it is: Compatible with voice assistants like Siri, Alexa, or Google Assistant
    When it matters: When hands-free control is part of your daily routine.

    Importance: LOW

    Koss KDE250 does not support voice assistants, the average headphone does. 60.8% of headphones support voice assistants.
  • Fixed cable
    Koss KDE250 has a fixed cable, while the average headphone has a detachable one. 62% of headphones have a detachable cable.
    What it is: Cable can be removed or replaced
    When it matters: When you care about easier cable replacement, simpler storage, or the option to swap to shorter, longer, or upgraded leads.

    Importance: MEDIUM

    Koss KDE250 has a fixed cable, while the average headphone has a detachable one. 62% of headphones have a detachable cable.
  • 7 dB/mW lower sensitivity
    Koss KDE250 has a lower sensitivity than the average headphone (95 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
    What it is: Sound pressure output level per unit of input power
    When it matters: When you plan to use weaker sources like phones, handhelds, or entry-level dongles and still want enough volume.

    Importance: MEDIUM

    Good value: >=106 dB/mW

    Koss KDE250 has a lower sensitivity than the average headphone (95 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.95 dB/mW vs 102 dB/mW
  • 22 Hz weaker bass extension
    Koss KDE250 has a higher lowest frequency than the average headphone (40 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
    What it is: Lowest audio frequency the headphones can reproduce
    When it matters: When deeper bass extension matters for your music or movie listening.

    Importance: MEDIUM

    Good value: <=10 Hz

    Koss KDE250 has a higher lowest frequency than the average headphone (40 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.40 Hz vs 18 Hz
  • 54.9% lower user score
    Koss KDE250 has a lower user score than the average headphone (5.16 vs 8.000).
    What it is: A rating that combines user reviews and the total number of reviews received by the headphones.
    When it matters: When you want to understand how headphones perform in real listening and how reliable they are in terms of comfort, audio quality, battery life, and long-term use.
    Koss KDE250 has a lower user score than the average headphone (5.16 vs 8.000).5.16 vs 8
  • 20.6% worse value for money
    Koss KDE250 has worse value for money than the average headphone (5.59 vs 6.736).
    What it is: An indicator that combines the headphones' overall rating with their cost.
    When it matters: When you are looking for headphones that offer a strong balance of performance, features, and price.
    Koss KDE250 has worse value for money than the average headphone (5.59 vs 6.736).5.59 vs 6.74
Total
Overall
Design
Sound
Features

Graphic comparison of Koss KDE250 and

Attribute category
Attribute
No results found

Third-party reviews

United Kingdom
amazon
3.3
10 Reviews
United States
Amazon_logo.png
3.3
10 Reviews

(Reviews last updated: June 2026)

What customers like about Koss KDE250?

  • Unique dual-element design featuring a dedicated woofer and tweeter for detailed sound separation.
  • Impressive openness and a wide, airy soundstage compared to traditional earbuds.
  • Comes with three sets of adjustable ear clips (small, medium, large) for a customisable fit.
  • Strong, punchy mid-bass and clear, transparent midrange.
  • No ear canal pressure, providing a comfortable alternative for those who dislike traditional IEM seals.
  • Covered by the Koss Limited Lifetime Warranty.

What customers dislike about Koss KDE250?

  • Finicky and difficult 'fiddly' fit that requires significant adjustment to find the optimal sound position.
  • Lack of sub-bass extension and physical punch in very deep low-end frequencies.
  • Minimal noise isolation; ambient sounds from the environment are easily heard.
  • Thin and fragile-feeling cables that are not detachable.
  • Treble can occasionally sound 'hot' or peaky (around 2400Hz) depending on the track.
  • Not suitable for active use as they can slide out of position with movement.

Expert reviews

K
kjihwan.wordpress.com
18/09/2016
Review – Koss KDE250 | Twelfth Monkey

The Koss KDE250 is a premium, over-ear clip-on earbud retailing at $250 that departs from modern in-ear monitor (IEM) trends with a bold, functional design. Its most striking feature is a unique 90-degree audio unit placement that projects sound directly toward the ear canal rather than sitting inside it. The primary pros of this configuration include a remarkably vast, pronounced...Read more

H
head-fi.org
20/11/2011
KOSS KDE-250 Owners club - The privileged few

The Head-Fi community discussion highlights the Koss KDE/250 as a unique hybrid earphone featuring a dual dynamic transducer design, with a 20mm woofer and a 13mm tweeter providing high-quality sound characterized by deep bass, clear timbre, and a wide soundstage. Users note that these phones are highly transparent and benefit significantly from high-quality amplification, offering...Read more

H
head-fi.org
06/03/2009
Koss KDE/250 | Headphone Reviews and Discussion

The Koss KDE/250 is an unconventional, bass-heavy earphone featuring a dual-element driver design that delivers punchy, defined low-end while maintaining crisp treble, with audio quality that scales with the source. It offers instant performance without burn-in, featuring a unique open-air design. However, the headset requires tedious adjustments to its mechanical ear clips to...Read more

F
forum.headphones.com
03/03/2019
Koss KDE 250 - General IEM Discussion

The Koss KDE 250 is a uniquely engineered earphone featuring dual dynamic transducers mounted at a perpendicular angle: a larger, ported 20mm driver handling low frequencies, and a side-firing 13mm driver dedicated to mid and upper frequencies. Priced at a standard $249.99 but famously discounted on Massdrop to $59, these earphones rely on an adjustable mechanical design rather than...Read more

F
firstpost.com
11/02/2012
Koss KDE250 Review - Firstpost

The Koss KDE250 is a unique pair of high-end clip-on earphones that features a distinct, unconventional design where smaller drivers plug into the ear horizontally rather than sitting flat. Built with sturdy metal components and adjustable screw-on clips, it offers impressive mid-frequency power, sharp detail, prominent yet controlled highs, and minimal sound leakage despite a...Read more

H
head-fi.org
05/05/2010
Koss KDE250 Dual Element Stereophone (Black/Silver) - Reviews

The Head-Fi review of the Koss KDE250 highlights a unique hybrid design that delivers pristine, timbre-accurate audio with deep, separated bass and smooth treble, offering high value backed by a lifetime warranty. However, the intricate mechanical structure requires a specific, large ear anatomy to achieve proper, comfortable fit, resulting in severe ergonomics issues and poor...Read more

T
theabsolutesound.com
14/12/2010
Koss KDE250 Dual-Element Headphone (Playback 39)

The Koss KDE250 dual-element headphones are described as a unique, lightweight, and comfortable alternative to traditional in-ear monitors that provide impressive openness and transparency. Sonically, the reviewer praises the device for delivering pristine clarity, exceptional detail, and beautiful definition, particularly in the upper and mid-bass regions, making instruments and...Read more

G
gamereactor.no
03/05/2009
Koss KDE250 Review - Gamereactor

This review by Børge Fjeld from Gamereactor Norge awards the Koss KDE250 earphones an overall score of 8 out of 10. The reviewer praise the innovative, unique design, which features ear hooks that keep the earphones securely locked in place during rigorous head movements and jumping. Musically, its standout feature is a unique two-way engineering system consisting of an external...Read more

(Translated)Show original
L
lydogbilde.no
01/12/2009
Review of Koss KDE/250 earphones

The Lyd & Bilde review highlights the Koss KDE/250Go as a unique, premium earbud alternative with an unconventional design retailing at a suggested price of 2500 kr. On the positive side, the reviewers praise the earphones for their solid build quality and ability to sit very securely on the user's head. Additionally, they commend the device for delivering crystal-clear audio...Read more

(Translated)Show original
H
head-fi.org
05/05/2010
Koss KDE250 Dual Element Stereophones Review

The Koss KDE250, a unique side-firing clip-on earphone with a dual-dynamic driver configuration, is lauded for exceptional audio quality, offering a punchy, separated bass and crisp treble. Pros include its vibrant, non-sterile sound signature, high-fidelity performance, and a lifetime warranty, contributing to a 5/5 value score. Head-Fi.orgConversely, the device faces significant...Read more

(Translated)Show original
T
theabsolutesound.com
14/12/2010
Koss KDE250 Dual-Element Headphones (Playback 39)

The Absolute Sound review of the $249.99 Koss KDE250 highlights an unorthodox ear-clip design featuring dual perpendicular transducers (20mm woofer, 13mm tweeter) that sit on the ear to deliver exceptional, open, and transparent sound. Key pros include remarkable clarity in the midrange and a highly adjustable fit allowing users to change the "angle of attack" for better sonic...Read more

(Translated)Show original

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