OVERALL
ALTERNATIVES
SPECS
VS AVERAGE
REVIEWS
Scored using Headphones Methodology v1.0
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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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JBL Synchros S700 Review | 93 Data compared

Avg. price:~£310Form factor:over-earConnectivity:wiredBattery life:N/A hoursActive noise cancellation (ANC):no

JBL Synchros S700 Review: Compare 93 technical specifications and user reviews to see how this product ranks in the Headphones category and whether it is worth buying.

JBL Synchros S700
6.5/10

Overall score

Score
6.5/ 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–² Better than 61% of models
Score components

80%

6.4

Technical score

20%

6.6

User score

â–²Better than 61% of headphones
7.2

Value for money

Value for money
7.2/ 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 59% of models
Score components

70%

6.5

Overall score

30%

8.9

Price

â–¼Worse than 59%
6.4

Technical score

Technical score
6.4/ 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–² Better than 68% of models
Score components

52%

6.9

Sound

20%

5.6

Features

10%

6.1

Design

8%

4.6

Connectivity

6%

6.4

Battery

4%

8.8

Calls & Controls

â–²Better than 68%
6.6

User score

User score
6.6/ 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 92% of models
Score components

70%

6.8

User ratings

30%

6.0

Number of reviews

Based on ratings from across the web.
â–¼Worse than 92%
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Where to buy
*As an Amazon Associate, we earn from qualifying purchases.
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 JBL Synchros S700

Technical score
Technical score
6.4/ 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–² Better than 68% of models
Score components:

52%

6.9

Sound

20%

5.6

Features

10%

6.1

Design

8%

4.6

Connectivity

6%

6.4

Battery

4%

8.8

Calls & Controls

6.4
User score
User score
6.6/ 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 92% of models
Score components

70%

6.8

User ratings

30%

6.0

Number of reviews

Based on ratings from across the web.
6.6
Popularity
Popularity
6.0/ 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–² Better than 51% of models
Popularity:
JBL Synchros S700 has a popularity score of 6 points, which is higher than that of 51% of products in this category.
6.0
Value for money
Value for money
7.2/ 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 59% of models
Score components:

70%

6.5

Overall score

30%

8.9

Price

7.2
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
dynamic
Driver size
50 mm
Market range: <10 mm – >50 mm
This pair of headphones uses a driver size of 50 mm, larger driver size than 86.3% of headphones and equal to 8.2% 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
10 Hz
Market range: <5 Hz – >20 Hz
This pair of headphones reaches a lowest frequency of 10 Hz, lower lowest frequency than 67.2% of headphones and equal to 12.6% of headphones.
Show more
Noise-canceling microphone
yes
This pair of headphones supports a noise-canceling microphone. 61.1% of headphones support noise-canceling microphones.
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
Market range: <0 – >4
This pair of headphones has 1 microphones, more microphones than 26.9% of headphones and equal to 50.9% 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
?
Show more
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
yes
This pair of headphones supports EQ customization. 76.8% of headphones support EQ.
Companion app
?
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
2.5 hours
Market range: <1.5 hours – >3.5 hours
This pair of headphones needs 2.5 hours to charge, higher charging time than 53% of headphones and equal to 13% of headphones.
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
JBL
Form factor
over-ear
Weight
306.1 g
Market range: <14 g – >340 g
This pair of headphones weighs 306.1 g, heavier than 82.9% of headphones and equal to 0.1% of headphones.
Acoustic design
closed-back
Clamp force
?
Show more

JBL Synchros S700 vs the average pair of headphones

246810TotalDesignSoundBatteryConnectivityCalls & ControlsFeatures
  • Spatial audio support
    This pair of headphones supports spatial audio, the average pair of headphones does not. 15.9% of headphones support spatial audio.
  • EQ customization
    This pair of headphones supports EQ customization, the average pair of headphones does not. 23.2% of headphones support EQ.
  • 10 mm larger driver size
    This pair of headphones uses a larger driver size than the average pair of headphones (50 mm vs 40 mm). The average headphones use a driver size of 40 mm.
    50 mm vs 40 mm
  • 15 dB/mW higher sensitivity
    This pair of headphones has a higher sensitivity than the average pair of headphones (117 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
    117 dB/mW vs 102 dB/mW
  • Clear call microphone
    This pair of headphones offers a clear call microphone, while the average pair of headphones does not. 39% of headphones support noise-canceling microphones.
  • 8 Hz lower bass extension
    This pair of headphones has a lower lowest frequency than the average pair of headphones (10 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
    10 Hz vs 18 Hz
  • Direct 3.5 mm plug
    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.
  • On-device controls
    This pair of headphones includes on-device controls, the average pair of headphones does not. 46.8% of headphones support on-device controls.
  • Spatial audio support
    This pair of headphones supports spatial audio, the average pair of headphones does not. 15.9% of headphones support spatial audio.
  • 10 mm larger driver size
    This pair of headphones uses a larger driver size than the average pair of headphones (50 mm vs 40 mm). The average headphones use a driver size of 40 mm.
    50 mm vs 40 mm
  • 15 dB/mW higher sensitivity
    This pair of headphones has a higher sensitivity than the average pair of headphones (117 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
    117 dB/mW vs 102 dB/mW
  • 8 Hz lower bass extension
    This pair of headphones has a lower lowest frequency than the average pair of headphones (10 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
    10 Hz vs 18 Hz
  • 14 dB SPL higher sound pressure level
    This pair of headphones has a higher sound pressure level than the average pair of headphones (117 dB SPL vs 103 dB SPL). The average headphones reach a sound pressure level of 103 dB SPL.
    117 dB SPL vs 103 dB SPL
  • 2,000 Hz higher treble extension
    This pair of headphones has a higher highest frequency than the average pair of headphones (22,000 Hz vs 20,000 Hz). The average headphones reach a highest frequency of 20,000 Hz.
    22,000 Hz vs 20,000 Hz
  • Rechargeable battery
    This pair of headphones has a rechargeable battery, the average pair of headphones does not. 47.9% of headphones have a rechargeable battery.
  • Direct 3.5 mm plug
    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.
  • LHDC support
    This pair of headphones supports LHDC, the average pair of headphones does not. 2.1% of headphones support LHDC.
  • Clear call microphone
    This pair of headphones offers a clear call microphone, while the average pair of headphones does not. 39% of headphones support noise-canceling microphones.
  • On-device controls
    This pair of headphones includes on-device controls, the average pair of headphones does not. 46.8% of headphones support on-device controls.
  • In-line controls
    This pair of headphones includes in-line controls, the average pair of headphones does not. 36.6% of headphones support in-line controls.
  • Quick mic mute
    This pair of headphones includes a quick mic mute, the average pair of headphones does not. 29.3% of headphones support a mute function.
  • EQ customization
    This pair of headphones supports EQ customization, the average pair of headphones does not. 23.2% of headphones support EQ.
  • 40.4% higher weight
    This pair of headphones is heavier than the average pair of headphones (306.1 g vs 218 g). The average pair of headphones weighs 218 g.
    306.1 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.
  • 0.5 hours longer charging time
    This pair of headphones has a higher charging time than the average pair of headphones (2.5 hours vs 2 hours). The average headphones need 2 hours to charge.
    2.5 hours vs 2 hours
  • 10 mm tighter earcup height
    This pair of headphones has tighter earcup height than the average pair of headphones (50 mm vs 60 mm). The average headphones offer an inner earcup height of 60 mm.
    50 mm vs 60 mm
  • 3.44x more expensive
    JBL Synchros S700 is more expensive than the average pair of headphones (£310 vs £90).
    £310 vs £90
  • 21.4% lower user score
    User score
    6.6/ 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
    JBL Synchros S700
    the average pair of headphones
    JBL Synchros S700 has a lower user score than the average pair of headphones (6.59 vs 8).
    6.59 vs 8
  • 3.44x more expensive
    JBL Synchros S700 is more expensive than the average pair of headphones (£310 vs £90).
    £310 vs £90
  • 21.4% lower user score
    User score
    6.6/ 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
    JBL Synchros S700
    the average pair of headphones
    JBL Synchros S700 has a lower user score than the average pair of headphones (6.59 vs 8).
    6.59 vs 8
  • 40.4% higher weight
    This pair of headphones is heavier than the average pair of headphones (306.1 g vs 218 g). The average pair of headphones weighs 218 g.
    306.1 g vs 218 g
  • 10 mm tighter earcup height
    This pair of headphones has tighter earcup height than the average pair of headphones (50 mm vs 60 mm). The average headphones offer an inner earcup height of 60 mm.
    50 mm vs 60 mm
  • 0.5 hours longer charging time
    This pair of headphones has a higher charging time than the average pair of headphones (2.5 hours vs 2 hours). The average headphones need 2 hours to charge.
    2.5 hours vs 2 hours
  • 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.

Video reviews

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

9.5
Booredatwork.com
≈ estimated
19/03/2014
Hands-on review · sound, comfort and live DSP mode
Verdict
JBL Synchros S700 is clearly recommended and worth the price, with the proprietary charging cable as its only minor complaint.
9.0
Gear Diary
≈ estimated
22/09/2013
First impressions · launch event listening and unboxing
Verdict
JBL Synchros S700 has a premium build and sound, and is worth a look for premium headphone buyers.
9.5
Chris Voss
≈ estimated
24/09/2013
First look · walkaround and quick impressions
Verdict
JBL Synchros S700 is clearly favored over rival headphones, and the reviewer strongly urges buyers to buy it.
Not graded
Hands-on video, no verdict
Not graded
Hands-on video, no verdict
Shop video
Shop video
Not graded
Hands-on video, no verdict

Expert reviews

In-depth analysis and verdict from leading tech publications

pcmag.com
20/11/2013
Listening test · Powered headphones
Verdict
The JBL Synchros S700 sounds great with its LiveStage effect off, but the effect ruins some mixes and the price is hard to justify.
cnet.com
09/10/2013
Hands-on test · Bass-heavy headphones
Verdict
The JBL Synchros S700 is built for bass fans, delivering deep, powerful lows but with a tight clamp and less natural mids and treble than rivals.
ibtimes.com
25/10/2013
Hands-on test · Powered over-ears
Verdict
The JBL Synchros S700 is a luxurious, bass-rich pair whose LiveStage mode adds a wide, open sound, though it lacks noise cancellation.
technogog.com
27/07/2014
Hands-on review · Premium over-ears
Verdict
The JBL Synchros S700 feels comfortable on hour-long commutes and has a luxurious build, though ears get warm on long flights.
T
techwelike.com
15/12/2013
Summary of the review
JBL Synchros S700 Headphones Review - TechWeLike
geekdad.com
16/02/2014
Hands-on test · Bass-focused headphones
Verdict
The JBL Synchros S700 suits bass-heavy listeners who value premium build, though its short cable and soft case are weak points and the price puts many off.
au.pcmag.com
21/11/2013
Listening test · Powered headphones
Verdict
The JBL Synchros S700 sounds great with its LiveStage effect off, but the effect ruins some mixes and the price is hard to justify.
yugatech.com
03/02/2014
Hands-on review · Closed-back headphones
Verdict
The JBL Synchros S700 is a sturdy, rich-bass pair that sounds best with DSP off, since DSP adds distortion, and its cable feels flimsy.
mightygadget.com
02/12/2013
Hands-on test · Powered headphones
Verdict
The JBL Synchros S700 is a sturdy, well-built pair that handles heavy bass without distortion, though LiveStage can sound unbalanced and ears get hot on long listens.
gstylemag.com
20/11/2013
Hands-on review · Stereo over-ears
Verdict
The JBL Synchros S700 is a sturdy, rich-sounding pair whose LiveStage mode gives a live-stage feel, though its design may not appeal to younger buyers.
technobaboy.com
17/12/2014
Hands-on review · Premium over-ears
Verdict
The JBL Synchros S700 has a solid build and punchy, balanced bass, but its large size may not suit everyone, and LiveStage thins the bass on some tunes.
computerbild.de
30/06/2014
Hands-on test · Over-ear headphones
Verdict
The JBL Synchros S700 is well built, with full, powerful sound and a call mic, though its size and LiveStage effect come down to personal taste.
connect.de
23/07/2014
Lab test · Over-ear headphones
Verdict
The JBL Synchros S700 is a detailed, deep-bass over-ear with a wide stage, though it sounds best in passive mode because its DSP thins the bass.
hifitest.de
15/05/2014
Hands-on test · Over-ear headphones
Verdict
The JBL Synchros S700 is a neutral, well-built over-ear whose built-in amp adds depth to phone sound, though it's heavy and has no cable for home systems.
newgadgets.de
31/08/2014
Hands-on test · Over-ear headphones
Verdict
The JBL Synchros S700 is a comfortable, well-made over-ear with warm passive sound and a LiveStage mode that feels like a concert, though treble can lack sparkle.
lesnumeriques.com
19/12/2013
Lab test · Active headphones
Verdict
The JBL Synchros S700 is a comfortable, sturdy headphone with 28 hours of battery life, but its LiveStage mode muddles the sound and doesn't justify the price.
wearemobians.com
12/01/2014
Hands-on test · Over-ear headphones
Verdict
The JBL Synchros S700 is a well-made, comfortable over-ear with strong bass and high volume in passive mode, though LiveStage cuts the bass and sounds metallic.
alpha-audio.net
24/04/2014
Lab test · Over-ear headphones
Verdict
The JBL Synchros S700 is a well-built, deep-bass over-ear with powerful sound and comfortable leather pads, but its passive sound is muddy and LiveStage tires over time.
nwtv.nl
09/01/2014
Practical review · Over-ear headphones
Verdict
The JBL Synchros S700 is a solid, natural-sounding over-ear that's worth the money, but its large size and steep price mean it isn't for everyone.

Third-party reviews

Based on ratings from across the web.
Reviews last updated: November 2026 · How we calculate this

What customers like about JBL Synchros S700

  • Premium build quality featuring die-cast aluminium and steel components
  • Deep, powerful, and accurate bass response without distortion
  • High level of comfort for long listening sessions due to soft leather ear cushions
  • Excellent battery life, often reaching 25-28 hours of powered use
  • Versatile connectivity with dedicated cables for both iOS and Android included
  • Ability to play in passive mode even when the battery is depleted
  • Impressive clarity in the midrange and highs during standard playback

What customers don't like about JBL Synchros S700

  • The LiveStage DSP feature is polarizing; many users find it makes audio sound thin or 'tinny'
  • Proprietary 2.5mm to USB charging cable is difficult to replace if lost
  • High initial retail price compared to some similarly performing competitors
  • Strong head-clamping force can cause discomfort or headaches for some users after extended wear
  • Noticeable weight due to the metal construction may feel heavy to some
  • The included carrying case is soft-sided and offers less protection than a hard shell case
  • Included audio cables are relatively short and feel thin or low-quality

Verdict

The JBL Synchros S700 is a premium, flagship over-ear headphone featuring 50mm drivers and proprietary LiveStageâ„¢ DSP technology designed to simulate a live concert soundstage. Built from durable materials like die-cast aluminum and steel with soft leather ear cushions, it offers a frequency response of 10Hz to 22kHz, a sensitivity of 117 dB, and up to 28 hours of battery life for its powered processing. Main pros include its high-quality, sturdy construction, powerful PureBass performance, and the ability to operate in passive mode when the battery is drained. However, some users find the LiveStage processing can make certain tracks sound thin or unnatural, the proprietary 2.5mm-to-USB charging cable is inconvenient to replace, and the headband may feel heavy or cause pressure during extended listening sessions.

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