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ALTERNATIVES
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Scored using Headphones Methodology v1.0
Headphones Methodology v1.0
Mathematical & Unbiased Scoring
Products in this category are scored under Frontum Headphones Methodology v1.0: technical specifications plus authentic consumer ratings, with 0% commercial bias.
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Stax Sr 407 Review | 93 Data compared

Avg. price:~£530Form factor:over-earConnectivity:wiredBattery life:N/A hoursActive noise cancellation (ANC):no

Stax Sr 407 Review: Compare 93 technical specifications and user reviews to see how this product ranks in the Headphones category and whether it is worth buying.

5.1/10

Overall score

Score
5.1/ 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
â–¼ Worse than 96% of models
Score components

80%

5.1

Technical score

20%

?

User score

â–¼Worse than 96% of headphones
5.9

Value for money

Value for money
5.9/ 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
â–¼ Worse than 96% of models
Score components

70%

5.1

Overall score

30%

7.7

Price

â–¼Worse than 96%
5.1

Technical score

Technical score
5.1/ 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
â–¼ Worse than 89% of models
Score components

52%

5.9

Sound

20%

4.0

Features

10%

5.3

Design

8%

4.0

Connectivity

6%

4.0

Battery

4%

3.8

Calls & Controls

â–¼Worse than 89%
?

User score

User score
8.0/ 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
â–¼ Worse than 58% of models
Score components

70%

?

User ratings

30%

?

Number of reviews

  • No image
No image
Where to buy
    N/A~ £530
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 Stax Sr 407

Technical score
Technical score
5.1/ 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
â–¼ Worse than 89% of models
Score components:

52%

5.9

Sound

20%

4.0

Features

10%

5.3

Design

8%

4.0

Connectivity

6%

4.0

Battery

4%

3.8

Calls & Controls

5.1
User score
User score
8.0/ 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
â–¼ Worse than 58% of models
Score components

70%

?

User ratings

30%

?

Number of reviews

?
Popularity
Popularity
1.0/ 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
â–¼ Worse than 99% of models
Popularity:
Stax Sr 407 has a popularity score of 1 point, which is lower than that of 73.4% of products in this category.
1.0
Value for money
Value for money
5.9/ 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
â–¼ Worse than 96% of models
Score components:

70%

5.1

Overall score

30%

7.7

Price

5.9
Active noise cancellation (ANC)
no
This pair of headphones does not support active noise cancellation. 27.5% of headphones support active noise cancellation.
Driver type
electrostatic
Driver size
90 mm
Market range: <10 mm – >50 mm
This pair of headphones uses a driver size of 90 mm, larger driver size than 98.3% of headphones and equal to 0.3% of headphones.
Number of drivers
1
Market range: <1 – >4
This pair of headphones uses 1 drivers, fewer drivers than 4% of headphones and equal to 96% of headphones.
Lowest frequency
7 Hz
Market range: <5 Hz – >20 Hz
This pair of headphones reaches a lowest frequency of 7 Hz, lower lowest frequency than 83.2% of headphones and equal to 1.3% of headphones.
Show more
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
no
This pair of headphones is not headset-ready, while 15.1% is. 84.9% of headphones can be used as headsets.
Number of microphones
0
Market range: <0 – >4
This pair of headphones has 0 microphones, fewer microphones than 73.2% of headphones and equal to 26.9% of headphones.
Boom microphone
no
This pair of headphones does not include a boom microphone. 13.5% of headphones have a boom microphone.
Microphone SNR
N/A
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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
This pair of headphones does not support multipoint. 30.6% of headphones support multipoint.
Show more
Ambient sound mode
no
This pair of headphones does not offer ambient sound mode. 24.9% of headphones support ambient sound mode.
EQ support
no
This pair of headphones does not support EQ customization. 23.2% of headphones support EQ.
Companion app
no
This pair of headphones does not work with a companion app. 21.6% of headphones support companion apps.
Adjustable ANC levels
N/A
Voice assistant support
no
This pair of headphones does not support voice assistants. 60.9% of headphones support voice assistants.
Show more
Battery life
N/A
Battery life with ANC
N/A
Charging time
N/A
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
Stax
Form factor
over-ear
Weight
340 g
Market range: <14 g – >340 g
This pair of headphones weighs 340 g, heavier than 89.6% of headphones and equal to 1% of headphones.
Acoustic design
open-back
Clamp force
?
Show more

Stax Sr 407 vs the average pair of headphones

246810TotalDesignSoundBatteryConnectivityCalls & ControlsFeatures
  • Hi-Res Audio certification
    This pair of headphones has Hi-Res Audio certification, the average pair of headphones does not. 23.1% of headphones are Hi-Res Audio certified.
  • 50 mm larger driver size
    This pair of headphones uses a larger driver size than the average pair of headphones (90 mm vs 40 mm). The average headphones use a driver size of 40 mm.
    90 mm vs 40 mm
  • 11 Hz lower bass extension
    This pair of headphones has a lower lowest frequency than the average pair of headphones (7 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
    7 Hz vs 18 Hz
  • 21,000 Hz higher treble extension
    This pair of headphones has a higher highest frequency than the average pair of headphones (41,000 Hz vs 20,000 Hz). The average headphones reach a highest frequency of 20,000 Hz.
    41,000 Hz vs 20,000 Hz
  • 0.29 % lower distortion
    This pair of headphones has a lower total harmonic distortion than the average pair of headphones (0 % vs 0.3 %). The average headphones have total harmonic distortion of 0.3 %.
    0.01 % vs 0.3 %
  • 1.3 m longer cable length
    This pair of headphones offers a more useful cable length than the average pair of headphones (2.5 m vs 1.2 m). The average headphones have a cable length of 1.2 m.
    2.5 m vs 1.2 m
  • Open-back design
    This pair of headphones uses an open-back design, while the average pair of headphones does not. 9.1% of headphones have an open-back design.
  • 5 mm more spacious earcup height
    This pair of headphones offers more spacious earcup height than the average pair of headphones (65 mm vs 60 mm). The average headphones offer an inner earcup height of 60 mm.
    65 mm vs 60 mm
  • 1.3 m longer cable length
    This pair of headphones offers a more useful cable length than the average pair of headphones (2.5 m vs 1.2 m). The average headphones have a cable length of 1.2 m.
    2.5 m vs 1.2 m
  • Open-back design
    This pair of headphones uses an open-back design, while the average pair of headphones does not. 9.1% of headphones have an open-back design.
  • 5 mm more spacious earcup height
    This pair of headphones offers more spacious earcup height than the average pair of headphones (65 mm vs 60 mm). The average headphones offer an inner earcup height of 60 mm.
    65 mm vs 60 mm
  • Hi-Res Audio certification
    This pair of headphones has Hi-Res Audio certification, the average pair of headphones does not. 23.1% of headphones are Hi-Res Audio certified.
  • 50 mm larger driver size
    This pair of headphones uses a larger driver size than the average pair of headphones (90 mm vs 40 mm). The average headphones use a driver size of 40 mm.
    90 mm vs 40 mm
  • 11 Hz lower bass extension
    This pair of headphones has a lower lowest frequency than the average pair of headphones (7 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
    7 Hz vs 18 Hz
  • 21,000 Hz higher treble extension
    This pair of headphones has a higher highest frequency than the average pair of headphones (41,000 Hz vs 20,000 Hz). The average headphones reach a highest frequency of 20,000 Hz.
    41,000 Hz vs 20,000 Hz
  • 0.29 % lower distortion
    This pair of headphones has a lower total harmonic distortion than the average pair of headphones (0 % vs 0.3 %). The average headphones have total harmonic distortion of 0.3 %.
    0.01 % vs 0.3 %
  • No passive noise reduction
    This pair of headphones does not offer passive noise reduction, while the average pair of headphones does. 82.6% of headphones have passive noise reduction.
  • 56% higher weight
    This pair of headphones is heavier than the average pair of headphones (340 g vs 218 g). The average pair of headphones weighs 218 g.
    340 g vs 218 g
  • No voice assistant support
    This pair of headphones does not support voice assistants, the average pair of headphones does. 60.8% of headphones support voice assistants.
  • Fixed cable
    This pair of headphones has a fixed cable, while the average pair of headphones has a detachable one. 62% of headphones have a detachable cable.
  • Not headset-ready
    This pair of headphones is not headset-ready, while the average pair of headphones is. 84.8% of headphones can be used as headsets.
  • 5.89x more expensive
    Stax Sr 407 is more expensive than the average pair of headphones (£530 vs £90).
    £530 vs £90
  • 23% worse value for money
    Stax Sr 407 has worse value for money than the average pair of headphones (5.91 vs 7.3).
    5.91 vs 7.27
  • No battery indicator
    This pair of headphones does not show battery level clearly, while the average pair of headphones does. 56.3% of headphones have a battery level indicator.
  • 5.89x more expensive
    Stax Sr 407 is more expensive than the average pair of headphones (£530 vs £90).
    £530 vs £90
  • 23% worse value for money
    Stax Sr 407 has worse value for money than the average pair of headphones (5.91 vs 7.3).
    5.91 vs 7.27
  • 5.87x less popular
    Stax Sr 407 is less popular than the average pair of headphones (1 vs 5.9).
    1 vs 5.87
  • 56% higher weight
    This pair of headphones is heavier than the average pair of headphones (340 g vs 218 g). The average pair of headphones weighs 218 g.
    340 g vs 218 g
  • Fixed cable
    This pair of headphones has a fixed cable, while the average pair of headphones has a detachable one. 62% of headphones have a detachable cable.
  • Tangle-prone cable
    This pair of headphones uses a tangle-prone cable, while the average pair of headphones is easier to manage. 64.2% of headphones use a tangle-free cable.
    no tangle-free listening cable is present or specified.
  • No travel bag
    This pair of headphones does not include a travel bag, the average pair of headphones does. 65.4% of headphones include a travel bag.
  • No passive noise reduction
    This pair of headphones does not offer passive noise reduction, while the average pair of headphones does. 82.6% of headphones have passive noise reduction.
  • No neodymium magnet
    This pair of headphones does not use neodymium magnets, the average pair of headphones does. 81.9% of headphones use neodymium magnets.
  • 1 dB/mW lower sensitivity
    This pair of headphones has a lower sensitivity than the average pair of headphones (101 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
    101 dB/mW vs 102 dB/mW
  • No battery indicator
    This pair of headphones does not show battery level clearly, while the average pair of headphones does. 56.3% of headphones have a battery level indicator.
  • Not headset-ready
    This pair of headphones is not headset-ready, while the average pair of headphones is. 84.8% of headphones can be used as headsets.
  • 1 fewer microphones
    This pair of headphones has fewer microphones than the average pair of headphones (0 vs 1). The average headphones have 1 microphones.
    0 vs 1
  • No voice assistant support
    This pair of headphones does not support voice assistants, the average pair of headphones does. 60.8% of headphones support voice assistants.
  • 6 older release date
    This pair of headphones was released earlier than the average pair of headphones (2010 vs 2016). The average headphones were released in 2016.
    2010 vs 2016

Video reviews

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

Not graded yet

Third-party reviews

What customers like about Stax Sr 407

  • Exceptional detail retrieval and transparency for high-fidelity listening
  • Incredible speed and effortlessness in sound reproduction, outperforming many high-end planar and dynamic headphones
  • Smooth, refined, and grain-free sound signature compared to previous series models
  • High level of instrument separation with a 3D-like, airy soundstage
  • Extremely lightweight and comfortable for long listening sessions despite the bulky appearance
  • Excellent value for money, often described as the 'best bang-for-the-buck' in its line

What customers don't like about Stax Sr 407

  • Build quality feels subpar or cheap due to the extensive use of thin, 'plasticky' materials
  • Lacks substantial bass impact or 'slam,' which may disappoint bass-heavy music fans
  • Soundstage width can feel narrow or disappointing compared to other open-back designs
  • The heavy ribbon cable can be cumbersome if left dangling
  • Can sound slightly bright or 'ethereal' in the upper registers depending on the recording and seal

Verdict

The Stax SR-407 is an open-back electrostatic 'ear speaker' from the Lambda series featuring a push-pull oval sound element with a frequency response of 7Hz to 41,000Hz and a sensitivity of 101dB. It utilizes a 1.35µm thin-film diaphragm encased in a vibration-minimizing resin, connected via a 2.5m low-capacitance wide cable with a 580V DC bias. Main pros include exceptional speed, surgical detail retrieval, and a vast, airy soundstage that offers realistic instrument separation. However, users often cite a lack of deep bass impact compared to dynamic drivers and a build quality that feels overly plastic or fragile.

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