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CAD Audio U39 Review | 76 Data compared

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  • Avg. price in UK: ~£35
  • Avg. price in US: ~$40
  • Connection type: USB
  • Transducer type: condenser
  • Max SPL: ?
  • Supported sample rates: 48 kHz
  • Output connector type: mini-USB

CAD Audio U39 review. Compare 76 technical specifications and user reviews to see how it ranks among microphones and if it is worth buying.

7.0

Overall score

What it is: An overall evaluation of the microphone's quality, based on technical analyses and user reviews.

When it matters: When you need a quick reference to identify the best microphones on the market.

Score components:

75.0%

7.2

Technical Score

25.0%

6.1

User score

Very good
7.2

Technical Score

What it is: An assessment of the microphone's technical performance, covering eight key areas: sound quality, sensitivity, pickup pattern, connectivity, onboard controls, accessories, compatibility, and design.

When it matters: When you want to compare microphones based on technical performance and available features.

Score components:

20.0%

8.6

Audio Performance

20.0%

6.7

Recording

16.0%

3.2

Pickup Patterns

16.0%

8.8

Controls & Features

10.0%

10

Power

7.0%

8.7

Compatibility

5.0%

6.0

Connectivity

3.0%

7.4

Design

3.0%

4.8

Accessories

Very good
6.1

User score

What it is: A rating that combines user reviews and the total number of reviews received by the microphone.

When it matters: When you want to know how a microphone performs in real use and how reliable it remains over time according to user feedback.

Score components:

70.0%

7.8

User reviews

30.0%

2.1

Popularity

User score:
United Kingdom
amazon
3.8
(20)
United States
Amazon_logo.png
3.9
(23)

(Reviews last updated: July 2026)

Good
  • 8.9
    Gaming

    Score components:

    25.0%

    10

    Zero-latency monitoring

    25.0%

    10

    Onboard gain control

    20.0%

    10

    Mute function

    20.0%

    5.5

    Volume control levels

    10.0%

    ?

    RGB lighting

  • 6.9
    Podcasting

    Score components:

    25.0%

    10

    Cardioid pattern

    20.0%

    10

    Zero-latency monitoring

    20.0%

    10

    Onboard gain control

    20.0%

    1.0

    Audio interface bit depth

    15.0%

    1.0

    Audio interface sample rate

  • 7.8
    Vocal recording

    Score components:

    40.0%

    ?

    Max SPL

    20.0%

    6.4

    Highest frequency

    20.0%

    6.4

    Lowest frequency

    20.0%

    10

    Cardioid pattern

  • 9.3
    Streaming

    Score components:

    25.0%

    10

    Loopback support

    25.0%

    10

    Zero-latency monitoring

    20.0%

    10

    Onboard gain control

    15.0%

    10

    Mute function

    15.0%

    5.5

    Volume control levels

  • 5.9
    Camera use

    Score components:

    30.0%

    ?

    Weight

    25.0%

    4.0

    Windscreen included

    25.0%

    4.0

    Shock mount included

    10.0%

    8.7

    Height

    10.0%

    6.6

    Width

  • cad-audio-u39
  • cad-audio-u39
cad-audio-u39
cad-audio-u39

Best prices in UK

Best rankings

?

Available: ranking among products currently available (including other versions of this product).
All: ranking among all products in the database.

Verdict

The CAD Audio U39 is a large-diaphragm unidirectional condenser USB microphone designed for home recording, gaming, and podcasting. It features a frequency response of 40Hz to 18kHz, supporting 16-bit audio at a 48kHz sampling rate, and includes a built-in 3.5mm headphone jack with TrakMix™ technology for real-time monitoring. Notable characteristics include an all-metal construction for durability, a bass-reduction switch to minimize room noise, and a -10dB overload-protection switch to prevent distortion from loud sources. Key pros are its straightforward plug-and-play setup for Windows and Mac, the inclusion of a 10-foot USB cable, and its effective isolation of sound sources. However, common cons include a tripod stand that some users find unstable, the lack of an integrated mute button, and plastic control knobs that may feel less premium than the metal body.

Technical Specifications of CAD Audio U39

Technical Score

What it is: An assessment of the microphone's technical performance, covering eight key areas: sound quality, sensitivity, pickup pattern, connectivity, onboard controls, accessories, compatibility, and design.

When it matters: When you want to compare microphones based on technical performance and available features.

Score components:

20.0%

8.6

Audio Performance

20.0%

6.7

Recording

16.0%

3.2

Pickup Patterns

16.0%

8.8

Controls & Features

10.0%

10

Power

7.0%

8.7

Compatibility

5.0%

6.0

Connectivity

3.0%

7.4

Design

3.0%

4.8

Accessories

7.2
CAD Audio U39 has a technical score of 7.25 points, which is higher than 64.8% of microphones.
User score

What it is: A rating that combines user reviews and the total number of reviews received by the microphone.

When it matters: When you want to know how a microphone performs in real use and how reliable it remains over time according to user feedback.

Score components:

70.0%

7.8

User reviews

30.0%

2.1

Popularity

User score:
United Kingdom
amazon
3.8
(20)
United States
Amazon_logo.png
3.9
(23)

(Reviews last updated: July 2026)

6.1
CAD Audio U39 has a user score of 6.09 points, which is lower than 97.5% of microphones.
Popularity
What it is: An indicator based on the number of reviews received by the microphone.
When it matters: When you prefer to buy a product chosen and reviewed by many other consumers.
2.1
CAD Audio U39 has a popularity of 2.1 points, which is lower than 63.8% of products in this category.
Ratio quality/price

What it is: An indicator that combines the microphone's overall rating with its cost.

When it matters: When you are looking for a microphone with a good balance between quality and price.

Score components:

60.0%

7.0

Overall score

40.0%

10

Price

7.9
CAD Audio U39 has a quality-to-price ratio of 7.9 points, which is lower than 52.8% of products in this category.
Microphone type
What it is: The overall microphone class intended for uses such as studio work, lavalier recording, handheld speech, or instrument capture.
When it matters: When you are choosing the right microphone style for studio work, interviews, streaming, or instruments.

Importance: LOW

studio
Transducer type
What it is: The transducer technology used to convert sound into an electrical signal.
When it matters: When you are choosing between condenser, dynamic, or ribbon behavior for your room and voice.

Importance: LOW

condenser
Diaphragm size
What it is: The diameter of the microphone diaphragm that reacts to incoming sound pressure.
When it matters: When you compare small and large diaphragm microphones for vocal detail, room tone, or transient response.

Importance: LOW

?
Capsule type
What it is: The capsule construction used inside the microphone to capture sound.
When it matters: When you compare different capsule designs for tone, detail, or recording style.

Importance: LOW

single
Sensitivity
What it is: The output level produced by the microphone for a given sound pressure reference.
When it matters: When you need enough output level without driving your preamp too hard.

Importance: LOW

?
Show more
Connection type
What it is: The connection standard used to link the microphone with recorders, mixers, phones, or computers.
When it matters: When you need the microphone to plug directly into the device you actually record with.

Importance: LOW

USB
Output connector type
What it is: The type of output connector used by the microphone for sending its audio signal.
When it matters: When you need the microphone to connect to a specific kind of input on your gear.

Importance: LOW

mini-USB
Headphone output
What it is: Indicates whether the microphone has a headphone output for direct monitoring.
When it matters: When you want to hear your own voice directly while recording or streaming.

Importance: LOW

yes
CAD Audio U39 includes a headphone output. 62.9% of microphones include this output.
3.5 mm audio jack
What it is: Indicates whether a 3.5 mm audio jack is available for monitoring or direct connection.
When it matters: When you want to plug headphones or a cable directly into a standard 3.5 mm socket.

Importance: LOW

no
CAD Audio U39 does not include a 3.5 mm jack. 63.3% of microphones include this connector.
6.35 mm audio jack connector
What it is: Indicates whether a 6.35 mm audio jack connector is present on the microphone or included interface.
When it matters: When your headphones, mixer, or instrument chain relies on a 6.35 mm jack connection.

Importance: LOW

no
CAD Audio U39 does not include a 6.35 mm jack. 2% of microphones include this connector.
Show more
Supported sample rates
What it is: The digital sample rates supported by the microphone for recording or monitoring.
When it matters: When you need the microphone to support the sample rates used in your recording workflow.

Importance: LOW

48 kHz
Supported bit depths
What it is: The digital bit depth values supported by the microphone for audio capture.
When it matters: When you want more digital recording resolution for editing or processing later.

Importance: LOW

16 bit
Audio interface sample rate
What it is: The audio interface sample rates supported by the microphone for digital capture or monitoring.
When it matters: When you need the microphone interface to support the sample rate used by your recording or streaming setup.

Importance: MEDIUM

48 kHz
CAD Audio U39 supports an interface sample rate of 48 kHz which is higher than that of 2.4% of microphones and equal to that of 55.3% of microphones.
Audio interface bit depth
What it is: The audio interface bit depths supported by the microphone for digital recording quality.
When it matters: When you want the microphone interface to support the bit depth used in your recording chain.

Importance: LOW

16 bit
CAD Audio U39 supports an interface bit depth of 16 bit which is lower than that of 58.8% of microphones and equal to that of 41.2% of microphones.
Signal-to-noise ratio (DAC)
What it is: The signal to noise ratio of the integrated DAC or headphone interface stage.
When it matters: When you monitor through the microphone headphone output and want that digital path to stay quiet.

Importance: MEDIUM

?
Show more
N. of polar patterns
What it is: The number of selectable pickup patterns available for different recording situations.
When it matters: When one microphone has to cover solo voice, room sound, and interview style setups.

Importance: MEDIUM

1
The number of selectable polar patterns offered by CAD Audio U39 is 1, which is equal to that of 75.4% of microphones.
Cardioid pattern
What it is: Indicates whether the microphone offers a cardioid pickup pattern for front focused capture.
When it matters: When you want to isolate one speaker in front of the microphone for podcasts, calls, or streaming.

Importance: MEDIUM

yes
CAD Audio U39 supports a cardioid pickup pattern. 91% of microphones support this pattern.
Omnidirectional pattern
What it is: Indicates whether the microphone offers an omnidirectional pickup pattern for 360 degree capture.
When it matters: When you want to capture everyone around the microphone instead of one voice from the front.

Importance: MEDIUM

no
CAD Audio U39 does not support an omnidirectional pickup pattern. 26.1% of microphones support this pattern.
Hypercardioid pattern
What it is: Indicates whether the microphone offers a hypercardioid pickup pattern with narrower front focus.
When it matters: When you want stronger rejection of sounds coming from the sides in a noisy room.

Importance: LOW

no
CAD Audio U39 does not support a hypercardioid pickup pattern. 1.5% of microphones support this pattern.
Bidirectional pattern
What it is: Indicates whether the microphone offers a bidirectional pickup pattern for front and rear capture.
When it matters: When you record two people facing each other with one microphone between them.

Importance: LOW

no
CAD Audio U39 does not support a bidirectional pickup pattern. 17.1% of microphones support this pattern.
Mute function
What it is: Indicates whether the microphone has a built in mute control for quickly silencing the signal.
When it matters: When you need to silence the microphone instantly during live calls, streams, or meetings.

Importance: MEDIUM

yes
CAD Audio U39 includes a mute function. 67.8% of microphones include this control.
Onboard gain control
What it is: Indicates whether the microphone provides a built in control for adjusting input gain.
When it matters: When different speakers or scenes need fast gain changes without touching the interface.

Importance: MEDIUM

yes
CAD Audio U39 includes onboard gain control. 51% of microphones include this control.
Volume control levels
What it is: The available volume level or volume adjustment provided directly on the microphone or its interface.
When it matters: When you want direct volume adjustment on the microphone or its built in interface.

Importance: LOW

1
CAD Audio U39 offers volume output of 1 which is higher than that of 35.4% of microphones and equal to that of 48.7% of microphones.
Flat DSP mode
What it is: Indicates whether the microphone provides a flat DSP mode without tonal processing.
When it matters: When you want a neutral sound profile before adding your own EQ or processing.

Importance: LOW

yes
CAD Audio U39 supports a flat DSP mode. 25% of microphones offer this processing option.
DSP presets
What it is: The number of built in DSP preset modes available for different sound profiles.
When it matters: When you want quick tone changes for voice, streaming, or different recording scenes.

Importance: LOW

0
CAD Audio U39 offers 0 DSP presets, which is equal to 83.4% of microphones.
Show more
Phantom power required
What it is: Indicates whether the microphone needs external phantom power to operate normally.
When it matters: When you use the microphone with an interface or mixer that may not provide phantom power.

Importance: MEDIUM

no
CAD Audio U39 requires phantom power. 90.4% of microphones also require phantom power.
Phantom power voltage
What it is: The phantom power voltage required by the microphone for proper operation.
When it matters: When you must confirm that your power supply matches what the microphone actually expects.

Importance: LOW

N/A
USB bus-powered
What it is: Indicates whether the microphone can be powered directly through its USB connection.
When it matters: When you want the microphone to run from a laptop or phone without a separate power supply.

Importance: MEDIUM

yes
CAD Audio U39 supports USB bus power. 85.9% of microphones support USB-powered operation.
Battery life
What it is: The expected operating time on battery power during portable or wireless use.
When it matters: When you use the microphone away from wall power for events, field work, or mobile video.

Importance: LOW

N/A
Height
What it is: The overall height of the microphone body, stand, or supplied desktop structure.
When it matters: When the microphone has to fit under a monitor, inside a booth, or into a limited desk space.

Importance: LOW

165 mm
CAD Audio U39 is 165 mm tall, which is shorter than 65.1% of microphones and equal in height to 2.1% of microphones.
Body only.
Width
What it is: The overall width of the microphone body or its integrated base.
When it matters: When the microphone must fit between monitors, on a narrow desk, or inside a compact rig.

Importance: LOW

76 mm
CAD Audio U39 is 76 mm wide, which is wider than 73% of microphones.
Thickness
What it is: The overall depth or front to back thickness of the microphone unit.
When it matters: When front to back depth decides whether the microphone clears your screen or keyboard area.

Importance: LOW

76 mm
CAD Audio U39 is 76 mm thick, which is thicker than 65.3% of microphones and equal in thickness to 0.5% of microphones.
Body only.
Weight
What it is: The total mass of the microphone with its included or attached parts.
When it matters: When you mount the microphone on a small arm, pack it for travel, or hold it for long sessions.

Importance: LOW

?
Body material
What it is: The main material used for the microphone body or housing.
When it matters: When you care about how sturdy, premium, or lightweight the microphone body feels over time.

Importance: LOW

metal
Show more
Included accessories
What it is: The accessories supplied in the box with the microphone for mounting, protection, or immediate use.
When it matters: When you want the box to include the accessories needed to set up and use the microphone right away.

Importance: LOW

stand; cable
Shock mount included
What it is: Indicates whether a shock mount is included to reduce vibration and handling noise.
When it matters: When desk vibrations or boom arm movement would otherwise travel into the recording.

Importance: LOW

no
CAD Audio U39 does not include a shock mount. 50% of microphones include this accessory.
Pop filter included
What it is: Indicates whether a pop filter is included to reduce plosive sounds during speech recording.
When it matters: When you record speech up close and want to reduce strong p and b bursts.

Importance: LOW

no
CAD Audio U39 does not include a pop filter. 61.4% of microphones include this accessory.
Windscreen included
What it is: Indicates whether a windscreen is included to reduce wind and breath noise.
When it matters: When you record outdoors or close to the mouth and want less wind or breath noise.

Importance: LOW

no
CAD Audio U39 does not include a windscreen. 31.8% of microphones include this accessory.
Cable length
What it is: The length of the included or attached audio cable supplied with the microphone.
When it matters: When the microphone has to reach your desk, camera rig, or interface without extension cables.

Importance: LOW

3 m
CAD Audio U39 has a cable length of 3 m which is longer than that of 81.3% of microphones and equal to that of 14.8% of microphones.
Android compatibility
What it is: Indicates whether the microphone can work properly with Android phones or tablets.
When it matters: When you plan to use the microphone with an Android phone or tablet without trial and error.

Importance: LOW

yes
CAD Audio U39 is compatible with Android. 65.8% of microphones are compatible with Android.
iOS compatibility
What it is: Indicates whether the microphone can work properly with iPhone or iPad devices.
When it matters: When you want the microphone to work properly with an iPhone or iPad setup.

Importance: LOW

no
CAD Audio U39 is not compatible with iOS. 61.8% of microphones are compatible with iOS.
Windows compatibility
What it is: Indicates whether the microphone can work properly with Windows computers.
When it matters: When your recording or streaming setup runs on a Windows computer.

Importance: LOW

yes
CAD Audio U39 is compatible with Windows. 100% of microphones are compatible with Windows.
macOS compatibility
What it is: Indicates whether the microphone can work properly with macOS computers.
When it matters: When your audio setup depends on a Mac or MacBook as the main recording machine.

Importance: LOW

yes
CAD Audio U39 is compatible with macOS. 99.5% of microphones are compatible with macOS.
Xbox compatibility
What it is: Indicates whether the microphone is explicitly compatible with Xbox consoles or controllers.
When it matters: When you want to connect and use the microphone with an Xbox console or controller.

Importance: LOW

no
CAD Audio U39 is not compatible with Xbox. 2.3% of microphones are compatible with Xbox.
Reported as not compatible with Xbox.
Show more

CAD Audio U39 vs the average microphone

  • Supports loopback audio
    CAD Audio U39 supports loopback audio, the average microphone does not.
    What it is: Indicates whether the microphone supports loopback routing for combining input and system audio.
    When it matters: When you want to send your microphone signal and system audio into one stream or recording feed.

    Importance: MEDIUM

    CAD Audio U39 supports loopback audio, the average microphone does not.
  • Includes high-pass filter
    CAD Audio U39 includes a high-pass filter, the average microphone does not.
    What it is: Indicates whether the microphone includes a high pass filter for reducing low frequency rumble.
    When it matters: When you need to cut rumble from desks, traffic, air conditioning, or stage vibration.

    Importance: LOW

    CAD Audio U39 includes a high-pass filter, the average microphone does not.
  • Supports flat DSP mode
    CAD Audio U39 supports a flat DSP mode, the average microphone does not.
    What it is: Indicates whether the microphone provides a flat DSP mode without tonal processing.
    When it matters: When you want a neutral sound profile before adding your own EQ or processing.

    Importance: LOW

    CAD Audio U39 supports a flat DSP mode, the average microphone does not.
  • 257 mW higher headphone output power
    CAD Audio U39 has a higher headphone output power than the average microphone (300 mW vs 43 mW). The average microphone has a headphone output power of 43 mW.
    What it is: The maximum power that the microphone headphone output can deliver to connected headphones.
    When it matters: When your headphones need enough power to reach a comfortable monitoring level.

    Importance: LOW

    CAD Audio U39 has a higher headphone output power than the average microphone (300 mW vs 43 mW). The average microphone has a headphone output power of 43 mW.300 mW vs 43 mW
  • 1 m longer cable length
    CAD Audio U39 has a longer cable than the average microphone (3 m vs 2 m). The average microphone has a cable length of 2 m.
    What it is: The length of the included or attached audio cable supplied with the microphone.
    When it matters: When the microphone has to reach your desk, camera rig, or interface without extension cables.

    Importance: LOW

    CAD Audio U39 has a longer cable than the average microphone (3 m vs 2 m). The average microphone has a cable length of 2 m.3 m vs 2 m
  • 2x cheaper
    CAD Audio U39 is cheaper than the average microphone (£35 vs £70).
    CAD Audio U39 is cheaper than the average microphone (£35 vs £70).£35 vs £70
  • 257 mW higher headphone output power
    CAD Audio U39 has a higher headphone output power than the average microphone (300 mW vs 43 mW). The average microphone has a headphone output power of 43 mW.
  • Supports loopback audio
    CAD Audio U39 supports loopback audio, the average microphone does not.
  • Includes high-pass filter
    CAD Audio U39 includes a high-pass filter, the average microphone does not.
  • Supports flat DSP mode
    CAD Audio U39 supports a flat DSP mode, the average microphone does not.
  • 1 m longer cable length
    CAD Audio U39 has a longer cable than the average microphone (3 m vs 2 m). The average microphone has a cable length of 2 m.

Total
Overall
Connectivity
Recording
Controls & Features
Accessories
  • 20 Hz higher low-frequency limit
    CAD Audio U39 has a higher low-frequency cutoff than the average microphone (40 Hz vs 20 Hz). By comparison, the average microphone has a low-frequency limit of 20 Hz.
  • 2,000 Hz lower high-frequency limit
    CAD Audio U39 has a lower high-frequency limit than the average microphone (18,000 Hz vs 20,000 Hz). By comparison, the average microphone has a high-frequency limit of 20,000 Hz.
  • No 3.5 mm jack
    CAD Audio U39 does not include a 3.5 mm jack, the average microphone does.
  • 8 bit lower interface bit depth
    CAD Audio U39 supports a lower audio interface bit depth than the average microphone (16 bit vs 24 bit). The average microphone audio interface supports 24 bit.
  • 5 older release date
    CAD Audio U39 is older than the average microphone (2,015 vs 2,020). The average microphone was released in 2,020.
  • 20 mm thicker body
    CAD Audio U39 is thicker than the average microphone (76 mm vs 56 mm). The average microphone has a thickness of 56 mm.
    Body only.
  • No pop filter
    CAD Audio U39 does not include a pop filter, the average microphone does.
  • Not compatible with iOS
    CAD Audio U39 is not compatible with iOS, the average microphone is.
  • 8 bit lower interface bit depth
    CAD Audio U39 supports a lower audio interface bit depth than the average microphone (16 bit vs 24 bit). The average microphone audio interface supports 24 bit.
    What it is: The audio interface bit depths supported by the microphone for digital recording quality.
    When it matters: When you want the microphone interface to support the bit depth used in your recording chain.

    Importance: LOW

    CAD Audio U39 supports a lower audio interface bit depth than the average microphone (16 bit vs 24 bit). The average microphone audio interface supports 24 bit.16 bit vs 24 bit
  • Not compatible with iOS
    CAD Audio U39 is not compatible with iOS, the average microphone is.
    What it is: Indicates whether the microphone can work properly with iPhone or iPad devices.
    When it matters: When you want the microphone to work properly with an iPhone or iPad setup.

    Importance: LOW

    CAD Audio U39 is not compatible with iOS, the average microphone is.
  • 20 Hz higher low-frequency limit
    CAD Audio U39 has a higher low-frequency cutoff than the average microphone (40 Hz vs 20 Hz). By comparison, the average microphone has a low-frequency limit of 20 Hz.
    What it is: The lowest sound frequency the microphone can capture.
    When it matters: When you want the microphone to capture more low end from deep voices or instruments.

    Importance: LOW

    CAD Audio U39 has a higher low-frequency cutoff than the average microphone (40 Hz vs 20 Hz). By comparison, the average microphone has a low-frequency limit of 20 Hz.40 Hz vs 20 Hz
  • 2,000 Hz lower high-frequency limit
    CAD Audio U39 has a lower high-frequency limit than the average microphone (18,000 Hz vs 20,000 Hz). By comparison, the average microphone has a high-frequency limit of 20,000 Hz.
    What it is: The highest sound frequency the microphone can capture.
    When it matters: When you need extra top end detail from breath, cymbals, or bright room ambience.

    Importance: LOW

    CAD Audio U39 has a lower high-frequency limit than the average microphone (18,000 Hz vs 20,000 Hz). By comparison, the average microphone has a high-frequency limit of 20,000 Hz.18000 Hz vs 20000 Hz
  • No pop filter
    CAD Audio U39 does not include a pop filter, the average microphone does.
    What it is: Indicates whether a pop filter is included to reduce plosive sounds during speech recording.
    When it matters: When you record speech up close and want to reduce strong p and b bursts.

    Importance: LOW

    CAD Audio U39 does not include a pop filter, the average microphone does.
  • No 3.5 mm jack
    CAD Audio U39 does not include a 3.5 mm jack, the average microphone does.
    What it is: Indicates whether a 3.5 mm audio jack is available for monitoring or direct connection.
    When it matters: When you want to plug headphones or a cable directly into a standard 3.5 mm socket.

    Importance: LOW

    CAD Audio U39 does not include a 3.5 mm jack, the average microphone does.
  • 5 older release date
    CAD Audio U39 is older than the average microphone (2,015 vs 2,020). The average microphone was released in 2,020.
    What it is: The period when the microphone model was officially introduced to the market.
    When it matters: When you want a newer microphone platform with current connectivity or software support.

    Importance: LOW

    CAD Audio U39 is older than the average microphone (2,015 vs 2,020). The average microphone was released in 2,020.2015 vs 2020
  • 31.3% lower user score
    CAD Audio U39 has a lower user score than the average microphone (6.09 vs 8.000).
    What it is: A rating that combines user reviews and the total number of reviews received by the microphone.
    When it matters: When you want to know how a microphone performs in real use and how reliable it remains over time according to user feedback.
    CAD Audio U39 has a lower user score than the average microphone (6.09 vs 8.000).6.09 vs 8
Total
Overall
Audio Performance
Connectivity
Recording
Design
Accessories
Compatibility

Graphic comparison of CAD Audio U39 and

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Third-party reviews

United Kingdom
amazon
3.8
20 Reviews
United States
Amazon_logo.png
3.9
23 Reviews

(Reviews last updated: July 2026)

What customers like about CAD Audio U39?

  • Durable all-metal body construction feels professional and sturdy.
  • TrakMix™ headphone jack allows for direct, real-time monitoring of recordings.
  • On-board controls include a mute switch, input adjustment, and a low-frequency roll-off switch to reduce background rumble.
  • Easy 'plug-and-play' setup for both Windows and Mac without requiring external drivers.
  • Generally considered a good value for entry-level home recording, podcasting, and social media.

What customers dislike about CAD Audio U39?

  • The included plastic tripod stand is often described as lightweight and unstable, especially if a pop filter is added.
  • Some users report extremely high output levels that can cause audio clipping even with manual adjustments.
  • Sound profile has been described by some as higher-pitched or 'tinny' compared to competitors like the Samson G-Track or Blue Yeti.
  • The bright blue LED indicator light can be distracting, as it may blink continuously during use.
  • Limited versatility due to a fixed cardioid polar pattern and lack of compatibility with iOS or Android devices.

Expert reviews

M
macsources.medium.com
26/08/2015
CAD Audio U39 USB Microphone Review | by MacSources

The MacSources review highlights the CAD Audio U39 as a user-friendly, high-performance USB microphone ($100–$139) featuring a robust metal construction, intuitive physical controls, and effortless plug-and-play setup. Key advantages include a front-facing input knob, a 10-foot USB cable, a mute switch, and a rear-mounted headphone jack for monitoring. Medium · Conversely, the...Read more

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