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Monoprice Monolith M650 Review | 93 Data compared

Avg. price:~£130Form factor:over-earConnectivity:wiredBattery life:N/A hoursActive noise cancellation (ANC):no

Monoprice Monolith M650 Review: Compare 93 technical specifications and user reviews to see how this product ranks in the Headphones category and whether it is worth buying.

Monoprice Monolith M650
5.2/10

Overall score

Score
5.2/ 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
â–¼ Worse than 94% of models
Score components

80%

4.8

Technical score

20%

7.2

User score

â–¼Worse than 94% of headphones
6.6

Value for money

Value for money
6.6/ 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 89% of models
Score components

70%

5.2

Overall score

30%

9.8

Price

â–¼Worse than 89%
4.8

Technical score

Technical score
4.8/ 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 97% of models
Score components

52%

4.9

Sound

20%

4.0

Features

10%

6.0

Design

8%

4.0

Connectivity

6%

4.0

Battery

4%

5.6

Calls & Controls

â–¼Worse than 97%
7.2

User score

User score
7.2/ 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 83% of models
Score components

70%

8.6

User ratings

30%

3.8

Number of reviews

Based on ratings from across the web.
â–¼Worse than 83%
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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 Monoprice Monolith M650

Technical score
Technical score
4.8/ 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 97% of models
Score components:

52%

4.9

Sound

20%

4.0

Features

10%

6.0

Design

8%

4.0

Connectivity

6%

4.0

Battery

4%

5.6

Calls & Controls

4.8
User score
User score
7.2/ 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 83% of models
Score components

70%

8.6

User ratings

30%

3.8

Number of reviews

Based on ratings from across the web.
7.2
Popularity
Popularity
3.8/ 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 67% of models
Popularity:
Monoprice Monolith M650 has a popularity score of 3.8 points, which is lower than that of 66.9% of products in this category.
3.8
Value for money
Value for money
6.6/ 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 89% of models
Score components:

70%

5.2

Overall score

30%

9.8

Price

6.6
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
15 Hz
Market range: <5 Hz – >20 Hz
This pair of headphones reaches a lowest frequency of 15 Hz, lower lowest frequency than 58.3% of headphones and equal to 5.8% 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
yes
This pair of headphones is headset-ready, 84.8% is not. 15.2% 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.
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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
Monoprice
Form factor
over-ear
Weight
335 g
Market range: <14 g – >340 g
This pair of headphones weighs 335 g, heavier than 89% of headphones and equal to 0.3% of headphones.
Acoustic design
open-back
Clamp force
?
Show more

Monoprice Monolith M650 vs the average pair of headphones

246810TotalDesignSoundBatteryConnectivityCalls & ControlsFeatures
  • 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
  • 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.
  • 11 mm more spacious earcup width
    This pair of headphones offers more spacious earcup width than the average pair of headphones (55 mm vs 44 mm). The average headphones offer an inner earcup width of 44 mm.
    55 mm vs 44 mm
  • 0.8 m longer cable length
    This pair of headphones offers a more useful cable length than the average pair of headphones (2 m vs 1.2 m). The average headphones have a cable length of 1.2 m.
    2 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.
  • 3 Hz lower bass extension
    This pair of headphones has a lower lowest frequency than the average pair of headphones (15 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
    15 Hz vs 18 Hz
  • 0.8 m longer cable length
    This pair of headphones offers a more useful cable length than the average pair of headphones (2 m vs 1.2 m). The average headphones have a cable length of 1.2 m.
    2 m vs 1.2 m
  • 11 mm more spacious earcup width
    This pair of headphones offers more spacious earcup width than the average pair of headphones (55 mm vs 44 mm). The average headphones offer an inner earcup width of 44 mm.
    55 mm vs 44 mm
  • 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.
  • 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
  • 3 Hz lower bass extension
    This pair of headphones has a lower lowest frequency than the average pair of headphones (15 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
    15 Hz vs 18 Hz
  • 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.
  • 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.
  • 53.7% higher weight
    This pair of headphones is heavier than the average pair of headphones (335 g vs 218 g). The average pair of headphones weighs 218 g.
    335 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.
  • 0.7 % higher distortion
    This pair of headphones has a higher total harmonic distortion than the average pair of headphones (1 % vs 0.3 %). The average headphones have total harmonic distortion of 0.3 %.
    1 % vs 0.3 %
  • 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.
  • 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
  • 9.9% worse value for money
    Monoprice Monolith M650 has worse value for money than the average pair of headphones (6.62 vs 7.3).
    6.62 vs 7.27
  • 2 dB/mW lower sensitivity
    This pair of headphones has a lower sensitivity than the average pair of headphones (100 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
    100 dB/mW vs 102 dB/mW
  • 9.9% worse value for money
    Monoprice Monolith M650 has worse value for money than the average pair of headphones (6.62 vs 7.3).
    6.62 vs 7.27
  • 11.9% lower user score
    User score
    7.2/ 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
    ▼▼
    <55-66-77-88-99-10
    Monoprice Monolith M650
    the average pair of headphones
    Monoprice Monolith M650 has a lower user score than the average pair of headphones (7.15 vs 8).
    7.15 vs 8
  • 55.5% less popular
    Monoprice Monolith M650 is less popular than the average pair of headphones (3.77 vs 5.9).
    3.77 vs 5.87
  • 53.7% higher weight
    This pair of headphones is heavier than the average pair of headphones (335 g vs 218 g). The average pair of headphones weighs 218 g.
    335 g vs 218 g
  • 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.
  • 0.7 % higher distortion
    This pair of headphones has a higher total harmonic distortion than the average pair of headphones (1 % vs 0.3 %). The average headphones have total harmonic distortion of 0.3 %.
    1 % vs 0.3 %
  • 2 dB/mW lower sensitivity
    This pair of headphones has a lower sensitivity than the average pair of headphones (100 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
    100 dB/mW vs 102 dB/mW
  • 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.
  • 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.
  • 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.

Third-party reviews

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

What customers like about Monoprice Monolith M650

  • Exceptional midrange performance, often cited as the best in its price class for vocal presence.
  • Spacious, life-like soundstage and depth due to the open-back beryllium driver design.
  • High build quality featuring a solid wood and metal construction with a braided detachable cable.
  • Easy to drive (64 ohms) and compatible with most portable devices without needing a high-powered amplifier.
  • Comes with a useful bundle including a sturdy carrying case and two sets of ear pads (faux leather and velour).

What customers don't like about Monoprice Monolith M650

  • Mid-bass can be overemphasized and boomy, which some users feel detracts from overall clarity.
  • Sub-bass lacks deep extension and visceral rumble compared to planar magnetic alternatives.
  • The stock cloth/leather pads are frequently criticized for being uncomfortable or negatively impacting tonality.
  • Fit issues for users with smaller heads, leading to an unstable feel or a poor acoustic seal.
  • Open-back design results in significant sound leakage and zero isolation from external noise.

Verdict

The Monoprice Monolith M650 is an open-back, over-ear headphone featuring 50mm beryllium-coated dynamic drivers designed to deliver a smooth and warm sonic profile. It operates at an impedance of 64 ohms and a high sensitivity of approximately 107.5dB, making it easy to drive with portable devices without requiring a dedicated amplifier. Key characteristics include its premium construction with real wood earcups and metal components, along with a wide frequency response of 15Hz to 20kHz and a detachable braided cable. Main pros include exceptional midrange performance for vocals, a spacious soundstage, and high comfort for long sessions aided by included interchangeable faux leather and velour pads. However, common cons include a mid-bass emphasis that can occasionally sound boomy or bleed into the lower mids, a lack of deep sub-bass extension, and subdued treble detail compared to more analytical competitors.

Compare Monoprice Monolith M650 with other products in the Headphones category

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