Scored using Headphones Methodology v1.0
Headphones Methodology v1.0
Mathematical & Unbiased Scoring
Products in this category are evaluated mathematically under Frontumo Headphones Methodology v1.0 using verified laboratory benchmarks, technical specifications, and authentic consumer ratings with 0% commercial bias.
Explore Headphones Methodology v1.0

Denon AH C400 Review | 93 Data compared

Avg. price:~£220Form factor:in-earConnectivity:wiredBattery life:N/A hoursActive noise cancellation (ANC):yes

Denon AH C400 Review: Compare 93 technical specifications and user reviews to see how this product ranks in the Headphones category and whether it is worth buying.

7.2

Overall score

Score
7.2/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
Score components

80%

7.5

Technical score

20%

6.0

User score

â–²Better than 78% of headphones
7.5

Technical score

Technical score
7.5/ 10
✕
What it is
An assessment of technical performance for products in the Headphones category across these key areas: Sound, Calls & Controls, Connectivity, Features, Battery, Design.
When it matters
When you want to compare headphones based on technical performance and available features.
Score distribution
â–¼
<55-66-77-88-99-10
Score components

52%

8.6

Sound

20%

6.3

Features

10%

8.0

Design

8%

5.6

Connectivity

6%

5.4

Battery

4%

6.6

Calls & Controls

â–²Better than 85% of headphones
6.0

User score

User score
6.0/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
Score components

70%

6.4

User ratings

30%

5.2

Number of reviews

Based on 120 buyer reviews from online shops.
How we calculate this
User ratings – average star rating across all shop listings, weighted by how many reviews each has, on a 1–10 scale.
Number of reviews – how many buyer reviews the product has, on a logarithmic scale; the 8% most-reviewed models in the category get 10.
â–¼Worse than 97% of headphones
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Best prices

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Best rankings

Available: ranking among products currently available (including other versions of this product).All: ranking among all products in the database.
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Technical Specifications of pair of headphones Denon AH C400

Technical score
Technical score
7.5/ 10
✕
What it is
An assessment of technical performance for products in the Headphones category across these key areas: Sound, Calls & Controls, Connectivity, Features, Battery, Design.
When it matters
When you want to compare headphones based on technical performance and available features.
Score distribution
â–¼
<55-66-77-88-99-10
Score components:

52%

8.6

Sound

20%

6.3

Features

10%

8.0

Design

8%

5.6

Connectivity

6%

5.4

Battery

4%

6.6

Calls & Controls

7.5
User score
User score
6.0/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
Score components

70%

6.4

User ratings

30%

5.2

Number of reviews

Based on 120 buyer reviews from online shops.
How we calculate this
User ratings – average star rating across all shop listings, weighted by how many reviews each has, on a 1–10 scale.
Number of reviews – how many buyer reviews the product has, on a logarithmic scale; the 8% most-reviewed models in the category get 10.
6.0
Popularity
Popularity
5.2/ 10
✕
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.
Score distribution
â–¼
<55-66-77-88-99-10
Popularity:
Denon AH C400 has a popularity score of 5.2 points, which is lower than that of 56.9% of products in this category.
5.2
Value for money
Value for money
7.9/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
Score components:

60%

7.2

Overall score

40%

9.4

Price

7.9
Active noise cancellation (ANC)
yes
Active noise cancellation (ANC)
yes
This pair of headphones supports active noise cancellation. 72.6% of headphones support active noise cancellation.
Driver type
balanced armature
Driver size
?
Number of drivers
2
Number of drivers
2
This pair of headphones uses 2 drivers, more drivers than 96% of headphones and equal to 2.5% of headphones.
Lowest frequency
4 Hz
Lowest frequency
4 Hz
This pair of headphones reaches a lowest frequency of 4 Hz, lower lowest frequency than 97.2% of headphones and equal to 2.1% of headphones.
Show more
Noise-canceling microphone
no
Noise-canceling microphone
no
This pair of headphones does not support a noise-canceling microphone. 39% of headphones support noise-canceling microphones.
Can be used as a headset
yes
Can be used as a headset
yes
This pair of headphones is headset-ready, 84.8% is not. 15.2% of headphones can be used as headsets.
Number of microphones
1
Number of microphones
1
This pair of headphones has 1 microphones, more microphones than 26.9% of headphones and equal to 50.9% of headphones.
Boom microphone
?
Microphone SNR
?
Show more
Connectivity
wired
Connectivity
wired
This pair of headphones supports wired connectivity, less flexible connectivity than 49.2% of headphones and equal to 50.8% of headphones.
Bluetooth version
N/A
Maximum Bluetooth range
N/A
Audio latency
N/A
Multipoint support
no
Multipoint support
no
This pair of headphones does not support multipoint. 30.6% of headphones support multipoint.
Show more
Ambient sound mode
no
Ambient sound mode
no
This pair of headphones does not offer ambient sound mode. 24.9% of headphones support ambient sound mode.
EQ support
yes
EQ support
yes
This pair of headphones supports EQ customization. 76.8% of headphones support EQ.
Companion app
yes
Companion app
yes
This pair of headphones works with a companion app. 78.4% of headphones support companion apps.
Adjustable ANC levels
N/A
Voice assistant support
yes
Voice assistant support
yes
This pair of headphones supports voice assistants. 39.2% of headphones support voice assistants.
Show more
Battery life
N/A
Battery life with ANC
N/A
Charging time
N/A
Quick charge
no
Quick charge
no
This pair of headphones does not support quick charging. 33.1% of headphones support quick charge.
Battery capacity
N/A
Show more
Brand name
Denon
Form factor
in-ear
Weight
9 g
Weight
9 g
This pair of headphones weighs 9 g, lighter than 96.6% of headphones and equal to 0.5% of headphones.
Acoustic design
closed-back
Clamp force
N/A
Show more

Denon AH C400 vs the average pair of headphones

246810TotalDesignSoundBatteryConnectivityCalls & ControlsFeatures
  • Active noise cancellation
    Active noise cancellation (ANC)
    yes
    This pair of headphones supports active noise cancellation, the average pair of headphones does not. 27.5% of headphones support active noise cancellation.
  • 95.9% lower weight
    Weight
    9 g
    This pair of headphones is lighter than the average pair of headphones (9 g vs 218 g). The average pair of headphones weighs 218 g.
    9 g vs 218 g
  • 14 Hz lower bass extension
    Lowest frequency
    4 Hz
    This pair of headphones has a lower lowest frequency than the average pair of headphones (4 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
    4 Hz vs 18 Hz
  • EQ customization
    EQ support
    yes
    This pair of headphones supports EQ customization, the average pair of headphones does not. 23.2% of headphones support EQ.
  • Companion app support
    Companion app
    yes
    This pair of headphones works with a companion app, the average pair of headphones does not. 21.6% of headphones support companion apps.
  • AptX Adaptive support
    aptX Adaptive
    yes
    This pair of headphones supports aptX Adaptive, the average pair of headphones does not. 6.7% of headphones support aptX Adaptive.
  • Direct 3.5 mm plug
    Has a 3.5mm male connector
    yes
    This pair of headphones includes a direct 3.5 mm plug, the average pair of headphones does not. 39.8% of headphones have a 3.5 mm male connector.
  • AptX Lossless support
    aptX Lossless
    yes
    This pair of headphones supports aptX Lossless, the average pair of headphones does not. 4.8% of headphones support aptX Lossless.
  • 95.9% lower weight
    Weight
    9 g
    This pair of headphones is lighter than the average pair of headphones (9 g vs 218 g). The average pair of headphones weighs 218 g.
    9 g vs 218 g
  • Active noise cancellation
    Active noise cancellation (ANC)
    yes
    This pair of headphones supports active noise cancellation, the average pair of headphones does not. 27.5% of headphones support active noise cancellation.
  • 14 Hz lower bass extension
    Lowest frequency
    4 Hz
    This pair of headphones has a lower lowest frequency than the average pair of headphones (4 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
    4 Hz vs 18 Hz
  • 1 more drivers
    Number of drivers
    2
    This pair of headphones uses more drivers than the average pair of headphones (2 vs 1). The average headphones use 1 drivers.
    2 vs 1
  • 4 dB/mW higher sensitivity
    Sensitivity
    106 dB/mW
    This pair of headphones has a higher sensitivity than the average pair of headphones (106 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
    106 dB/mW vs 102 dB/mW
  • 16 dB higher max SPL
    Max SPL
    126 dB
    This pair of headphones has a higher max SPL than the average pair of headphones (126 dB vs 110 dB). The average headphones reach a max SPL of 110 dB.
    126 dB vs 110 dB
  • Wireless charging support
    Wireless charging
    yes
    This pair of headphones supports wireless charging, the average pair of headphones does not. 3.9% of headphones support wireless charging.
  • AptX Adaptive support
    aptX Adaptive
    yes
    This pair of headphones supports aptX Adaptive, the average pair of headphones does not. 6.7% of headphones support aptX Adaptive.
  • Direct 3.5 mm plug
    Has a 3.5mm male connector
    yes
    This pair of headphones includes a direct 3.5 mm plug, the average pair of headphones does not. 39.8% of headphones have a 3.5 mm male connector.
  • AptX Lossless support
    aptX Lossless
    yes
    This pair of headphones supports aptX Lossless, the average pair of headphones does not. 4.8% of headphones support aptX Lossless.
  • AAC codec support
    AAC
    yes
    This pair of headphones supports AAC, the average pair of headphones does not. 32.2% of headphones support AAC.
  • In-line controls
    In-line controls
    yes
    This pair of headphones includes in-line controls, the average pair of headphones does not. 36.6% of headphones support in-line controls.
  • Wind noise reduction
    Wind noise reduction
    yes
    This pair of headphones reduces wind noise, the average pair of headphones does not. 34.3% of headphones support wind noise reduction.
  • EQ customization
    EQ support
    yes
    This pair of headphones supports EQ customization, the average pair of headphones does not. 23.2% of headphones support EQ.
  • Companion app support
    Companion app
    yes
    This pair of headphones works with a companion app, the average pair of headphones does not. 21.6% of headphones support companion apps.
  • Non-replaceable earpads
    Replaceable earpads
    no
    This pair of headphones has non-replaceable earpads, while the average pair of headphones has replaceable ones. 75.6% of headphones have replaceable earpads.
  • 32.4% lower user score
    User score
    6.0/ 10
    ✕
    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 distribution
    â–¼
    â–¼
    <55-66-77-88-99-10
    Denon AH C400
    the average pair of headphones
    Denon AH C400 has a lower user score than the average pair of headphones (6.04 vs 8.000).
    6.04 vs 8
  • 2.44x more expensive
    Denon AH C400 is more expensive than the average pair of headphones (£220 vs £90).
    £220 vs £90
  • No neodymium magnet
    Neodymium magnet
    no
    This pair of headphones does not use neodymium magnets, the average pair of headphones does. 81.9% of headphones use neodymium magnets.
  • 4 older release date
    Release date
    2012
    This pair of headphones was released earlier than the average pair of headphones (2012 vs 2016). The average headphones were released in 2016.
    May 2012
    2012 vs 2016
  • 32.4% lower user score
    User score
    6.0/ 10
    ✕
    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 distribution
    â–¼
    â–¼
    <55-66-77-88-99-10
    Denon AH C400
    the average pair of headphones
    Denon AH C400 has a lower user score than the average pair of headphones (6.04 vs 8.000).
    6.04 vs 8
  • 2.44x more expensive
    Denon AH C400 is more expensive than the average pair of headphones (£220 vs £90).
    £220 vs £90
  • Non-replaceable earpads
    Replaceable earpads
    no
    This pair of headphones has non-replaceable earpads, while the average pair of headphones has replaceable ones. 75.6% of headphones have replaceable earpads.
  • No neodymium magnet
    Neodymium magnet
    no
    This pair of headphones does not use neodymium magnets, the average pair of headphones does. 81.9% of headphones use neodymium magnets.
  • 4 older release date
    Release date
    2012
    This pair of headphones was released earlier than the average pair of headphones (2012 vs 2016). The average headphones were released in 2016.
    May 2012
    2012 vs 2016

Video reviews

Hands-on testing, unboxing, and real-world video evaluations

Expert reviews

In-depth analysis and verdict from leading tech publications

T
trustedreviews.com
19/06/2013
Summary of the review
T
totallydubbed.net
20/03/2013
Summary of the review
B
bustedwallet.com
21/01/2013
Summary of the review
U
uk.pcmag.com
31/08/2012
Summary of the review
D
denon.com
17/10/2026
Summary of the review

Third-party reviews

Based on 120 buyer reviews from online shops.
Reviews last updated: June 2026 · How we calculate this

What we like about Denon AH C400

  • Neutral and accurate sound signature ideal for audiophiles
  • Exceptional midrange detail and clarity
  • Wide and impressive soundstage for in-ear monitors
  • Excellent noise isolation, especially when used with included Comply foam tips
  • High-quality zinc die-cast housing and robust tangle-free cable
  • Generous accessory package including multiple tip types and a carrying case

What we don't like about Denon AH C400

  • Non-removable/non-replaceable cable is a major durability concern at this price
  • Reserved bass response may be insufficient for 'bassheads'
  • Unusual 'arm' design can cause the earpieces to stick out or fall out of the ear
  • Potential for minor bass distortion at very high volumes
  • High original retail price was considered poor value (though often discounted later)
  • In-line remote controls are primarily optimized for Apple devices, limiting Android functionality

Verdict

The Denon AH-C400 Music Maniac in-ear headphones feature high-performance dual balanced armature drivers with a passive crossover, housed in durable zinc die-cast casings to deliver a neutral, audiophile-grade sound profile. Key technical specifications include a wide frequency response of 4Hz to 20,000Hz, an impedance of 43 Ohms, and a sensitivity of 106dB/mW, complemented by a tangle-resistant cable with an integrated microphone and remote for Apple devices. Main advantages include exceptional vocal clarity, impressive passive noise isolation—aided by included Comply foam and multiple silicone ear tips—and a lightweight 9-gram design that offers high long-term comfort. However, notable drawbacks include a non-removable cable, potential bass distortion at maximum volumes, and a high initial price point that may be steep for a dual-driver configuration.

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