Ultrasone Pro 900 Review | 93 Data compared

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  • Avg. price in UK: ~£410
  • Avg. price in US: ~$600
  • Form factor: over-ear
  • Connectivity: wired
  • Battery life: N/A hours
  • Active noise cancellation (ANC): no

Ultrasone Pro 900 review. Compare 93 technical specifications and user reviews to see how it ranks among headphones and if it is worth buying.

4.9

Overall score

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 components:

80.0%

4.9

Technical Score

20.0%

?

User score

Poor
4.9

Technical Score

What it is: An assessment of the headphones' technical performance, covering key areas such as sound quality, noise cancelling, microphone performance, battery life, comfort, connectivity, features, and build quality.

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

Score components:

52.0%

6.4

Sound

20.0%

2.7

Features

10.0%

6.5

Design

8.0%

2.9

Connectivity

6.0%

1.0

Battery

4.0%

2.8

Calls & Controls

Poor
?

User score

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 components:

70.0%

?

User reviews

30.0%

?

Popularity

  • 2.1
    Gaming

    Score components:

    35.0%

    0.0

    Audio latency

    25.0%

    0.0

    Low-latency game mode

    20.0%

    10

    Can be used as a headset

    12.0%

    1.0

    Noise-canceling microphone

    8.0%

    0.0

    Battery life

  • 0.9
    Travel

    Score components:

    28.0%

    1.0

    Active noise cancellation (ANC)

    24.0%

    0.0

    Battery life

    18.0%

    3.3

    Weight

    16.0%

    0.0

    Multipoint support

    14.0%

    0.0

    Ambient sound mode

  • 2.7
    Calls

    Score components:

    28.0%

    1.0

    Noise-canceling microphone

    24.0%

    10

    Can be used as a headset

    18.0%

    0.0

    Multipoint support

    16.0%

    0.0

    Battery life

    14.0%

    0.0

    Companion app

  • 3.2
    Workout

    Score components:

    28.0%

    3.3

    Weight

    24.0%

    1.0

    Water resistance

    20.0%

    4.0

    IP rating

    16.0%

    0.0

    Battery life

    12.0%

    10

    Can be used as a headset

  • ultrasone-pro-900
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  • ultrasone-pro-900
  • ultrasone-pro-900
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ultrasone-pro-900
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ultrasone-pro-900

Best prices in UK

    N/A~ £410

Best rankings

?

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

Verdict

The Ultrasone Pro 900 is a professional-grade closed-back dynamic headphone featuring 40mm titanium-plated Mylar drivers and a wide frequency response of 6Hz to 42,000Hz. It incorporates proprietary S-Logic Plus technology for a spacious soundstage and ULE (Ultra Low Emission) shielding with a MU-metal bufferboard to reduce electromagnetic radiation. With an impedance of 40 Ohms and a sensitivity of 96dB, it is known for its intense, V-shaped sound signature that offers impactful, deep bass and detailed high-frequency extension. Main pros include its durable foldable design, high-quality Neutrik connectors, and a comprehensive accessory package featuring detachable cables and spare velvet earpads. Notable cons include a recessed midrange that can feel overwhelmed by the low end, potential sibilance in the upper registers, and a soundstage that some users find narrow or overly dependent on precise ear placement.

Technical Specifications of Ultrasone Pro 900

Technical Score

What it is: An assessment of the headphones' technical performance, covering key areas such as sound quality, noise cancelling, microphone performance, battery life, comfort, connectivity, features, and build quality.

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

Score components:

52.0%

?

Sound

20.0%

?

Features

10.0%

?

Design

8.0%

?

Connectivity

6.0%

?

Battery

4.0%

?

Calls & Controls

4.9
Ultrasone Pro 900 has a technical score of 4.9 points, which is lower than that of 50.8% of products in this category.
User score

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 components:

70.0%

0.0

User reviews

30.0%

1.0

Popularity

?
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.
1.0
Ultrasone Pro 900 has a popularity of 1 points, which is lower than 72.7% of products in this category.
Ratio quality/price

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 components:

60.0%

4.9

Overall score

40.0%

8.4

Price

5.9
Ultrasone Pro 900 has a quality-to-price ratio of 5.9 points, which is lower than 85.5% of products in this category.
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

no
Ultrasone Pro 900 does not support active noise cancellation. 27.4% of headphones support active noise cancellation.
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

40 mm
Ultrasone Pro 900 uses a driver size of 40 mm, larger driver size than 28.2% of headphones and equal to 53.6% of headphones.
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

1
Ultrasone Pro 900 uses 1 drivers, equal to 96% of headphones.
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

6 Hz
Ultrasone Pro 900 reaches a lowest frequency of 6 Hz, lower lowest frequency than 84.5% of headphones and equal to 1.8% of headphones.
Show more
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

no
Ultrasone Pro 900 does not support a noise-canceling microphone. 45.6% of headphones support noise-canceling microphones.
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

yes
Ultrasone Pro 900 is headset-ready, 84.7% is not. 15.3% of headphones can be used as headsets.
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

0
Ultrasone Pro 900 has 0 microphones, fewer microphones than 74.1% of headphones and equal to 25.9% of headphones.
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

no
Ultrasone Pro 900 does not include a boom microphone. 15.6% of headphones have a boom microphone.
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

N/A
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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

wired
Ultrasone Pro 900 supports wired connectivity, equal to 52.6% of headphones.
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

N/A
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

N/A
Show more
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

N/A
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

no
Ultrasone Pro 900 does not support EQ customization. 23.3% of headphones support EQ.
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

N/A
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

N/A
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

no
Ultrasone Pro 900 does not support voice assistants. 60.9% of headphones support voice assistants.
Show more
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

N/A
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

N/A
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

N/A
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

N/A
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

N/A
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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

Ultrasone
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

295 g
Ultrasone Pro 900 weighs 295 g, heavier than 79.8% of headphones and equal to 0.6% of headphones.
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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Ultrasone Pro 900 vs the average headphone

  • Hi-Res Audio certification
    Ultrasone Pro 900 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

    Ultrasone Pro 900 has Hi-Res Audio certification, the average headphone does not. 22.9% of headphones are Hi-Res Audio certified.
  • Spatial audio support
    Ultrasone Pro 900 supports spatial audio, the average headphone does not. 30.7% of headphones support spatial audio.
    What it is: Supports immersive surround sound playback
    When it matters: When movies, games, and immersive mixes are part of your listening.

    Importance: MEDIUM

    Ultrasone Pro 900 supports spatial audio, the average headphone does not. 30.7% of headphones support spatial audio.
  • 12 Hz lower bass extension
    Ultrasone Pro 900 has a lower lowest frequency than the average headphone (6 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

    Ultrasone Pro 900 has a lower lowest frequency than the average headphone (6 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.6 Hz vs 18 Hz
  • 22,000 Hz higher treble extension
    Ultrasone Pro 900 has a higher highest frequency than the average headphone (42,000 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

    Ultrasone Pro 900 has a higher highest frequency than the average headphone (42,000 Hz vs 20,000 Hz). The average headphones reach a highest frequency of 20,000 Hz.42000 Hz vs 20000 Hz
  • Foldable design
    Ultrasone Pro 900 has a foldable design, the average headphone does not. 61% of headphones are foldable.
    What it is: Earcups or headband can fold for compact storage
    When it matters: When you travel often and want easier storage in a bag.

    Importance: LOW

    Ultrasone Pro 900 has a foldable design, the average headphone does not. 61% of headphones are foldable.
  • 11 mm more spacious earcup width
    Ultrasone Pro 900 offers more spacious earcup width than the average headphone (54 mm vs 43 mm). The average headphones offer an inner earcup width of 43 mm.
    What it is: Internal width of the earcup cavity
    When it matters: When earcup fit affects comfort and pressure around your ears.

    Importance: MEDIUM

    Ultrasone Pro 900 offers more spacious earcup width than the average headphone (54 mm vs 43 mm). The average headphones offer an inner earcup width of 43 mm.54 mm vs 43 mm
  • Foldable design
    Ultrasone Pro 900 has a foldable design, the average headphone does not. 61% of headphones are foldable.
  • 11 mm more spacious earcup width
    Ultrasone Pro 900 offers more spacious earcup width than the average headphone (54 mm vs 43 mm). The average headphones offer an inner earcup width of 43 mm.
  • Hi-Res Audio certification
    Ultrasone Pro 900 has Hi-Res Audio certification, the average headphone does not. 22.9% of headphones are Hi-Res Audio certified.
  • Spatial audio support
    Ultrasone Pro 900 supports spatial audio, the average headphone does not. 30.7% of headphones support spatial audio.
  • 12 Hz lower bass extension
    Ultrasone Pro 900 has a lower lowest frequency than the average headphone (6 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
  • 22,000 Hz higher treble extension
    Ultrasone Pro 900 has a higher highest frequency than the average headphone (42,000 Hz vs 20,000 Hz). The average headphones reach a highest frequency of 20,000 Hz.
  • 35.3% higher weight
    Ultrasone Pro 900 is heavier than the average headphone (295 g vs 218 g). The average pair of headphones weighs 218 g.
  • 6 mm tighter earcup height
    Ultrasone Pro 900 has tighter earcup height than the average headphone (54 mm vs 60 mm). The average headphones offer an inner earcup height of 60 mm.
  • 6 dB/mW lower sensitivity
    Ultrasone Pro 900 has a lower sensitivity than the average headphone (96 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
  • 14 dB lower max SPL
    Ultrasone Pro 900 has a lower max SPL than the average headphone (96 dB vs 110 dB). The average headphones reach a max SPL of 110 dB.
  • 7 dB SPL lower sound pressure level
    Ultrasone Pro 900 has a lower sound pressure level than the average headphone (96 dB SPL vs 103 dB SPL). The average headphones reach a sound pressure level of 103 dB SPL.
  • 1 fewer microphones
    Ultrasone Pro 900 has fewer microphones than the average headphone (0 vs 1). The average headphones have 1 microphones.
  • No voice assistant support
    Ultrasone Pro 900 does not support voice assistants, the average headphone does. 60.8% of headphones support voice assistants.
  • 9 years older release date
    Ultrasone Pro 900 was released earlier than the average headphone (2,008 vs 2,017). The average headphones were released in 2,017.
    October 2008
  • No voice assistant support
    Ultrasone Pro 900 does not support voice assistants, the average headphone does. 60.8% of headphones support voice assistants.
    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

    Ultrasone Pro 900 does not support voice assistants, the average headphone does. 60.8% of headphones support voice assistants.
  • 35.3% higher weight
    Ultrasone Pro 900 is heavier than the average headphone (295 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

    Ultrasone Pro 900 is heavier than the average headphone (295 g vs 218 g). The average pair of headphones weighs 218 g.295 g vs 218 g
  • 6 dB/mW lower sensitivity
    Ultrasone Pro 900 has a lower sensitivity than the average headphone (96 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

    Ultrasone Pro 900 has a lower sensitivity than the average headphone (96 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.96 dB/mW vs 102 dB/mW
  • 6 mm tighter earcup height
    Ultrasone Pro 900 has tighter earcup height than the average headphone (54 mm vs 60 mm). The average headphones offer an inner earcup height of 60 mm.
    What it is: Internal height of the earcup cavity
    When it matters: When larger ears need enough space inside the earcups.

    Importance: MEDIUM

    Ultrasone Pro 900 has tighter earcup height than the average headphone (54 mm vs 60 mm). The average headphones offer an inner earcup height of 60 mm.54 mm vs 60 mm
  • 4.56x more expensive
    Ultrasone Pro 900 is more expensive than the average headphone (£410 vs £90).
    Ultrasone Pro 900 is more expensive than the average headphone (£410 vs £90).£410 vs £90
  • 1 fewer microphones
    Ultrasone Pro 900 has fewer microphones than the average headphone (0 vs 1). The average headphones have 1 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

    Ultrasone Pro 900 has fewer microphones than the average headphone (0 vs 1). The average headphones have 1 microphones.0 vs 1
  • 4.65x less popular
    Ultrasone Pro 900 is less popular than the average headphone (1.00 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.
    Ultrasone Pro 900 is less popular than the average headphone (1.00 vs 4.646).1 vs 4.65
  • 13.5% worse value for money
    Ultrasone Pro 900 has worse value for money than the average headphone (5.94 vs 6.736).
    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.
    Ultrasone Pro 900 has worse value for money than the average headphone (5.94 vs 6.736).5.94 vs 6.74

Graphic comparison of Ultrasone Pro 900 and

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Third-party reviews

What customers like about Ultrasone Pro 900?

  • Powerful and impactful bass with excellent low-end extension, making them ideal for EDM and bass-heavy genres
  • High build quality featuring durable plastics and heavy-duty joints
  • Excellent imaging and soundstage for a closed-back model, aided by S-Logic technology
  • Comprehensive accessory bundle including a hard-shell carrying case, spare velour earpads, and two detachable cables
  • Relatively easy to drive without requiring a high-end dedicated amplifier for decent volume
  • Effective passive noise isolation due to a firm acoustic seal

What customers dislike about Ultrasone Pro 900?

  • Recessed midrange that can make vocals feel thin or distant in certain tracks
  • Harsh or peaky treble that can lead to sibilance and listening fatigue
  • Mixed comfort reports; some users find the headband or driver depth uncomfortable for long sessions
  • Strong clamping force that may be problematic for users who wear glasses
  • Unforgiving of lower-quality audio sources or heavily compressed recordings
  • Colored sound signature that is not neutral enough for some professional monitoring needs

Expert reviews

H
head-fi.org
04/03/2013

The Head-Fi review finds the Beyerdynamic DT770 (80 Ohm) offers a natural, spacious, and laid-back sound with an exceptionally wide soundstage for a closed-back headphone, though it lacks the high energy and detail texture of its competitor. Conversely, the Ultrasone Pro 900 is positioned as a specialized, forward-sounding "basshead" headphone featuring immense low-end, superior...Read more

H
headphoneslab.com
01/04/2020

Review Summary The Ultrasone PRO 900 professional over-ear headphones earn a 4.1/5 editor rating for delivering a fast, powerful, V-shaped sound signature featuring massive sub-bass and impressive imaging. Key design advantages include a durable hard-plastic build, lightweight design, and high comfort levels with passive noise isolation, making them highly suitable for DJs and...Read more

H
head-fi.org
05/05/2010

The Ultrasone PRO 900 is characterized by a specialized sound signature featuring intense mid-bass punch and deep sub-bass, making it ideal for electronic music. Utilizing S-Logic technology, these closed-back headphones offer strong spatial imaging and a wide soundstage, supported by durable, detachable cables and solid build quality. Conversely, the heavy bass can become muddy and...Read more

T
tapeop.com
01/03/2011

The Ultrasone PRO 900 headphones ($599 MSRP) provide high-end, professional audio performance built around a 40 mm titanium-plated driver system with a broad frequency response spanning from 6 Hz to 42 kHz. A major pro highlighted in the review is the S-Logic Plus technology, which utilizes decentralized driver positioning to direct sound toward the outer ear. This unique design...Read more

S
soundandvision.com
11/11/2009

The Sound & Vision review highlights the Ultrasone Pro 900 headphonesGo to product viewer dialogue for this item. for their natural, spacious sound, driven by the patented S-Logic technology that uses decentralized drivers to create a wide, room-like stereo field. Additional pros include comfortable, sweat-resistant velvet ear cushions and high-quality construction featuring Neutrik...Read more

S
soundstagexperience.com
11/11/2009

The SoundStage! Xperience review by S. Andrea Sundaram highlights the Ultrasone Pro 900Go to product viewer dialogue for this item. ($599 USD) as an attractive, German-made, closed-back headphone packed with premium accessories, including velvet earpads and a hard carrying case. Architecturally, it stands out due to its titanium-plated drivers, ultra-low-emission (ULE) radiation...Read more

H
hometheaterhifi.com
26/08/2009

The Ultrasone Pro 900 Over-the-Ear Headphones ($599 MSRP) are a large, closed-back model evaluated by Chris Heinonen for office use as an alternative to his reference AKG K701 open-back headphones. Structurally, the headphones feature 40mm Mylar/Titanium drivers, a 40-Ohm impedance, and a frequency response of 6 Hz to 42 kHz. The package includes two identical sets of silver and...Read more

T
techpowerup.com
25/03/2009

The TechPowerUp review of the Ultrasone PRO900 highlights exceptional low-end performance and deep sub-bass, delivering high-impact sound without muddiness, alongside a warm, detailed midrange. Compared to the HFI-680, the PRO900 offers a more spacious, airy, and refined audio presentation. TechPowerUpHowever, the review identifies that the ear cups exhibit a tendency to resonate,...Read more

A
areadvd.de
22/09/2016

The AREA DVD review calls the Ultrasone Pro 900iGo to product viewer dialogue for this item. an excellent pair of closed-back, dynamic over-ear headphones priced at 469 to 499 EUR. The reviewer praises their superb build quality featuring high-grade aluminum ear cup accents, deep padding, and a generous five-year manufacturer warranty. A major highlight is the patented S-Logic Plus...Read more

C
connect.de
01/12/2016

The Ultrasone Pro 900i is a closed-back headphone built for people who listen to music for hours at a time. It is a very comfortable headset with black velvet ear pads that feel soft against the skin. The velvet can get dirty quickly, but you can easily twist the pads off to swap them out. The headband is fully padded to spread the weight evenly, and it stays firmly in place. It...Read more

S
stereo.de
01/03/2012

The German hi-fi magazine STEREO evaluates headphones through rigorous real-world testing rather than relying on standard laboratory measurement equipment. Their evaluation focuses heavily on practical usability, comfort dynamics—such as weight, contact pressure, and fit—and extensive comparative listening sessions conducted by multiple editors. For Bluetooth and active...Read more

B
bonedo.de
25/11/2013

The Ultrasone Pro 900 is a closed-back, over-ear dynamic headphone designed for studio and pro-audio use, featuring 40 mm titanium-coated drivers and S-Logic PLUS technology to enhance spatial imaging while reducing ear fatigue. In terms of build and comfort, the review highlights its robust, pragmatic plastic construction accented with aluminium plates, a secure fit, and heavily...Read more

K
kopfhoerer.de
20/08/2012

The review on kopfhoerer.de highlights the Ultrasone Pro 900Go to product viewer dialogue for this item. as a highly specialized headphone defined by an exceptionally powerful and dominant bass profile, particularly in the deep sub-bass frequencies below 80 Hz. While this massive low-end response easily beats famous bass-heavy competitors like Beats, the reviewer notes that it often...Read more

L
lesnumeriques.com
27/11/2014

The Les Numériques review awards the Ultrasone Pro 900 closed-back studio headphones a 4 out of 5-star rating, highlighting its highly detailed audio performance and superb stereophony. On the positive side, the headphones excel in reproducing extremely deep, precise bass frequencies down to 25–30 Hz, and they feature the proprietary S-Logic Plus technology, which delivers a...Read more

Video reviews

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