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Denon AH GC25NC Review | 93 Data compared

Avg. price in UK: ~£260
Avg. price in US: ~$300
Form factor: over-ear
Connectivity: wireless
Battery life: 30 hours
Active noise cancellation (ANC): yes

Denon AH GC25NC review. Compare 93 technical specifications and user reviews to see how it ranks among headphones and if it is worth buying.

7.0

Very good

7.4

Very good

5.4

Good

7.0
Gaming
Score components:
35.0%
9.0
Audio latency
25.0%
1.0
Low-latency game mode
20.0%
10
Can be used as a headset
12.0%
10
Noise-canceling microphone
8.0%
4.8
Battery life
6.1
Travel
Score components:
28.0%
10
Active noise cancellation (ANC)
24.0%
4.8
Battery life
18.0%
3.5
Weight
16.0%
1.0
Multipoint support
14.0%
10
Ambient sound mode
6.3
Calls
Score components:
28.0%
10
Noise-canceling microphone
24.0%
10
Can be used as a headset
18.0%
1.0
Multipoint support
16.0%
4.8
Battery life
14.0%
1.0
Companion app
4.0
Workout
Score components:
28.0%
3.5
Weight
24.0%
1.0
Water resistance
20.0%
4.0
IP rating
16.0%
4.8
Battery life
12.0%
10
Can be used as a headset

Best prices in UK

Best rankings

#262 in Best Wireless Headphones for TV for Seniors
#262 in Best Wireless Over-Ear Headphones
#272 in Best Noise Cancelling Over Ear Headphones
#273 in Best Over Ear Headphones
#301 in Best Wireless Headphones
#327 in Best Headphones with Mic
#330 in Best Noise Cancelling Headphones

Verdict

The Denon AH-GC25NC is a premium wired over-ear headphone featuring 40mm FreeEdge drivers that deliver Hi-Res certified sound with a wide frequency response of 5 Hz to 50,000 Hz and a 16-ohm impedance. It is distinguished by its triple-mode active noise cancellation (Flight, City, and Office modes) and an integrated ambient monitor that allows external sound pass-through with a simple tap on the earcup. Main pros include its exceptional 40-hour battery life for noise cancellation, high-quality memory foam ear pads for extended comfort, and a lightweight, foldable design weighing 287g. However, notable cons include the lack of wireless Bluetooth connectivity, the use of a micro-USB port rather than USB-C for charging, and user reports of the synthetic leather on the ear pads peeling over time.

Technical Specifications of Denon AH GC25NC

Overall score

7.0

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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.

Sound

9.1

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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

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

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

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

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Calls & Controls

9.5

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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

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

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

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

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

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Connectivity

4.0

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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

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

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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

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Features

4.2

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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

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

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

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

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Battery

7.5

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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

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

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

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

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

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Design

6.5

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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

Denon

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

over-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

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

closed-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

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Denon AH GC25NC vs the average headphone

Why is Denon AH GC25NC better than the average headphone?

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Active noise cancellation
Denon AH GC25NC supports active noise cancellation, the average headphone does not. 27.4% of headphones support active noise cancellation.
What it is: Reduces background noise using active technology
When it matters: When blocking office, travel, or aircraft noise is a priority.
Importance: HIGH
Denon AH GC25NC supports active noise cancellation, the average headphone does not. 27.4% of headphones support active noise cancellation.
Hi-Res Audio certification
Denon AH GC25NC has Hi-Res Audio certification, the average headphone does not. 22.9% of headphones are Hi-Res Audio certified.
What it is: Certified for high-resolution audio playback
When it matters: When official support for high-resolution playback matters to you.
Importance: LOW
Denon AH GC25NC has Hi-Res Audio certification, the average headphone does not. 22.9% of headphones are Hi-Res Audio certified.
13 Hz lower bass extension
Denon AH GC25NC has a lower lowest frequency than the average headphone (5 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
Denon AH GC25NC has a lower lowest frequency than the average headphone (5 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.5 Hz vs 18 Hz
30,000 Hz higher treble extension
Denon AH GC25NC has a higher highest frequency than the average headphone (50,000 Hz vs 20,000 Hz). The average headphones reach a highest frequency of 20,000 Hz.
What it is: Highest audio frequency the headphones can reproduce
When it matters: When treble extension and overall frequency reach matter to you.
Importance: MEDIUM
Good value: >=24000 Hz
Denon AH GC25NC has a higher highest frequency than the average headphone (50,000 Hz vs 20,000 Hz). The average headphones reach a highest frequency of 20,000 Hz.50000 Hz vs 20000 Hz
More flexible connectivity
Denon AH GC25NC offers more flexible connectivity than the average headphone (wireless vs wired). The average headphones support wired connectivity.
supports both wireless and wired 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
Denon AH GC25NC offers more flexible connectivity than the average headphone (wireless vs wired). The average headphones support wired connectivity.wireless vs wired
Clear call microphone
Denon AH GC25NC offers a clear call microphone, while the average headphone does not. 45.6% of headphones support noise-canceling microphones.
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
Denon AH GC25NC offers a clear call microphone, while the average headphone does not. 45.6% of headphones support noise-canceling microphones.
On-device controls
Denon AH GC25NC includes on-device controls, the average headphone does not. 46.8% of headphones support on-device controls.
What it is: Physical controls available directly on headphones
When it matters: When you need playback, volume, or call controls to be easy to reach without pulling out your phone.
Importance: MEDIUM
Denon AH GC25NC includes on-device controls, the average headphone does not. 46.8% of headphones support on-device controls.
In-line controls
Denon AH GC25NC 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
Denon AH GC25NC includes in-line controls, the average headphone does not. 36.4% of headphones support in-line controls.
Foldable design
Denon AH GC25NC has a foldable design, the average headphone does not. 61% of headphones are foldable.
Active noise cancellation
Denon AH GC25NC supports active noise cancellation, the average headphone does not. 27.4% of headphones support active noise cancellation.
Hi-Res Audio certification
Denon AH GC25NC has Hi-Res Audio certification, the average headphone does not. 22.9% of headphones are Hi-Res Audio certified.
13 Hz lower bass extension
Denon AH GC25NC has a lower lowest frequency than the average headphone (5 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
30,000 Hz higher treble extension
Denon AH GC25NC has a higher highest frequency than the average headphone (50,000 Hz vs 20,000 Hz). The average headphones reach a highest frequency of 20,000 Hz.
10x higher input power handling
Denon AH GC25NC has a higher max input power than the average headphone (1,000 mW vs 100 mW). The average headphones handle max input power of 100 mW.
10 hours longer ANC battery life
Denon AH GC25NC has a higher battery life with ANC than the average headphone (40 hours vs 30 hours). The average headphones offer battery life with ANC of 30 hours.
Rechargeable battery
Denon AH GC25NC has a rechargeable battery, the average headphone does not. 47.9% of headphones have a rechargeable battery.
Play while charging
Denon AH GC25NC can play while charging, the average headphone cannot. 55.9% of headphones support play while charging.
More flexible connectivity
Denon AH GC25NC offers more flexible connectivity than the average headphone (wireless vs wired). The average headphones support wired connectivity.
Clear call microphone
Denon AH GC25NC offers a clear call microphone, while the average headphone does not. 45.6% of headphones support noise-canceling microphones.
On-device controls
Denon AH GC25NC includes on-device controls, the average headphone does not. 46.8% of headphones support on-device controls.
In-line controls
Denon AH GC25NC includes in-line controls, the average headphone does not. 36.4% of headphones support in-line controls.
3 more microphones
Denon AH GC25NC has more microphones than the average headphone (4 vs 1). The average headphones have 1 microphones.
Wind noise reduction
Denon AH GC25NC reduces wind noise, the average headphone does not. 34.1% of headphones support wind noise reduction.
Quick mic mute
Denon AH GC25NC includes a quick mic mute, the average headphone does not. 33.5% of headphones support a mute function.
Boom microphone included
Denon AH GC25NC includes a boom microphone, the average headphone does not. 15.6% of headphones have a boom microphone.

Calls & Controls

Why is Denon AH GC25NC worse than the average headphone?

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31.7% higher weight
Denon AH GC25NC is heavier than the average headphone (287 g vs 218 g). The average pair of headphones weighs 218 g.
4 dB/mW lower sensitivity
Denon AH GC25NC has a lower sensitivity than the average headphone (98 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
No neodymium magnet
Denon AH GC25NC does not use neodymium magnets, the average headphone does. 77.4% of headphones use neodymium magnets.
5 dB SPL lower sound pressure level
Denon AH GC25NC has a lower sound pressure level than the average headphone (98 dB SPL vs 103 dB SPL). The average headphones reach a sound pressure level of 103 dB SPL.
31.7% higher weight
Denon AH GC25NC is heavier than the average headphone (287 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
Denon AH GC25NC is heavier than the average headphone (287 g vs 218 g). The average pair of headphones weighs 218 g.287 g vs 218 g
4 dB/mW lower sensitivity
Denon AH GC25NC has a lower sensitivity than the average headphone (98 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
Denon AH GC25NC has a lower sensitivity than the average headphone (98 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.98 dB/mW vs 102 dB/mW
48.2% lower user score
Denon AH GC25NC has a lower user score than the average headphone (5.40 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.
Denon AH GC25NC has a lower user score than the average headphone (5.40 vs 8.000).5.4 vs 8
2.89x more expensive
Denon AH GC25NC is more expensive than the average headphone (£260 vs £90).
Denon AH GC25NC is more expensive than the average headphone (£260 vs £90).£260 vs £90
No neodymium magnet
Denon AH GC25NC does not use neodymium magnets, the average headphone does. 77.4% of headphones use neodymium magnets.
What it is: Uses neodymium magnets for stronger, clearer sound
When it matters: When driver construction details are part of how you compare sound hardware.
Importance: LOW
Denon AH GC25NC does not use neodymium magnets, the average headphone does. 77.4% of headphones use neodymium magnets.
2.49x less popular
Denon AH GC25NC is less popular than the average headphone (1.87 vs 4.646).
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.
Denon AH GC25NC is less popular than the average headphone (1.87 vs 4.646).1.87 vs 4.65
5 dB SPL lower sound pressure level
Denon AH GC25NC has a lower sound pressure level than the average headphone (98 dB SPL vs 103 dB SPL). The average headphones reach a sound pressure level of 103 dB SPL.
What it is: Output loudness level of the headphones, usually measured in dB. It helps compare how loud a model can play under similar conditions.
When it matters: When you need a rough idea of how loud the headphones can get before you pair them with a weaker source.
Importance: LOW
Good value: >=108 dB SPL
Denon AH GC25NC has a lower sound pressure level than the average headphone (98 dB SPL vs 103 dB SPL). The average headphones reach a sound pressure level of 103 dB SPL.98 dB SPL vs 103 dB SPL

Graphic comparison of Denon AH GC25NC and

Attribute category

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Third-party reviews

United Kingdom

United States

(Reviews last updated: June 2026)

What customers like about Denon AH GC25NC?

Amazing Hi-Res audio quality with crisp highs and deep bass
Excellent active noise cancellation with three specific environment modes
High level of comfort for long-wear sessions due to memory foam earcups
Strong passive noise occlusion even when ANC is turned off
Long battery life of up to 40 hours for noise cancellation
Convenient ambient monitor feature (tap-to-hear announcements)

What customers dislike about Denon AH GC25NC?

Reports of poor durability regarding the synthetic leather on ear pads peeling quickly
The controls can feel a bit fiddly or difficult to use initially
Requires an additional amplifier to reach full potential for high-res audio
Some users find them heavy and uncomfortable compared to newer alternatives
Outdated micro-USB charging port and lack of wireless/Bluetooth connectivity

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