Field Test · Studio Gear Review
OneOdio Pro 20 Black
Technical assessment of OneOdio’s Pro 20 Black over-ear headphones
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Spec Sheet
- Wired
- Circumaural
- Closed
- Dynamic
- Frequency range: 20 – 40,000 Hz
- Impdeance: 32 ohm
- Max. Sound pressure level: 110 dB
- Driver size: 50 mm
- Detachable cable
- Cable routing on one side
- Colour: Black
- Includes 3 m spiral cable 3.5 mm to 6.3 mm jack, cable with built-in microphone 3.5 mm to 3.5 mm jack and carrying bag
Studio Log
| Available since | September 2023 |
|---|---|
| Item number | 568466 |
| Sales Unit | 1 piece(s) |
| Design | Over-Ear |
| System | Closed Back |
| Impedance | 47 Ohms |
| Frequency range | 15 Hz – 40000 Hz |
| Adaptor | No |
| Replaceable Cable | Yes |
| Colour | Black |
| Max. SPL | 110 dB |
| Type Of Connector | Jack, mini-jack |
| Weight | 0 g |
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QC Pass — Field Test
Customer Review Summary
Introduction to the OneOdio Pro 20 Black
Released in September 2023, the OneOdio Pro 20 Black is a budget-friendly over-ear headphone model priced at £34. Designed with closed-back circumaural cups and equipped with large 50mm dynamic drivers, these headphones aim to deliver a full, impactful audio experience while remaining accessible for various uses. The model offers detachable cables with two types of connectors and ships with a carrying bag, making it versatile for studio or casual use.
Design and Build Quality
The Pro 20 Black sports a straightforward, modern black palette and utilises a wired connection. Despite its low price, it features a robust construction with 180° rotatable ear cups allowing some flexibility in wear and storage. The packaging includes two cables: a 3m spiral cable with a 3.5mm to 6.3mm jack and another 3.5mm to 3.5mm cable with an in-line microphone, adding to the headphone’s adaptability for both professional and mobile environments.
A notable point is the dual input sockets, users can choose between a mini-jack and a larger jack input on either ear cup. This is an uncommon feature at this price point, allowing connection to different audio sources without adapters. The detachable cable system also simplifies replacement or upgrading.
While the build is sound, some testers noted the materials lean towards the entry-level, with ear cushions that might feel slightly small for larger ears or cause mild discomfort over extended periods. However, the lightweight design generally contributes positively to long-term wearability.
Sound Performance
OneOdio equips the Pro 20 Black with 50mm drivers, which produce a frequency response ranging from 15Hz to an impressive 40,000Hz. Although the human hearing range typically maxes out at around 20,000Hz, the extended frequency response benefits users working with synthesizers, electronic music production or audio mastering, where overtone clarity matters.
The headphones present a bass-forward soundstage that remains tight and controlled rather than bloated. The lows offer a satisfying punch without overpowering the mids and highs. Treble frequencies come through cleanly and are well-defined without sounding harsh or fatiguing over time, which some users praise especially compared to similarly priced rivals.
Notably, despite the relatively high impedance (32, 47 ohms depending on the version), the Pro 20 Black performs well even with smartphone sources, although it thrives most when paired with amplifiers or audio interfaces thanks to its 110 dB max sound pressure level.
Comparisons and Use Cases
- Compared with more expensive models like the AKG K92 or Audio-Technica M50x, the Pro 20 Black offers competitive audio clarity and bass depth, sometimes preferred over pricier counterparts for casual listening and home studio use.
- Instrument players, including electric drum and synthesizer users, have reported the headphones reveal subtle high-frequency details, aiding in audio editing and monitoring tasks.
- The Pro 20’s bass response supports immersion for live drum and guitar monitoring without significant distortion, allowing musicians a convincing and lively sound experience at modest volume levels.
- Soundstage and instrument separation are respectable for this price but do not reach audiophile or professional reference standards; they excel more as enjoyable all-rounders.
Comfort and Usability
Comfort is generally satisfactory though not perfect. Users with larger ears may experience compression due to the smaller ear pads. The pads’ fabric tends to trap some moisture during longer sessions. However, the design accommodates wearing with glasses reasonably well.
The swivel ear cups facilitate positioning and storage, but some have expressed concerns about the longevity and robustness of the rotating mechanism under extensive use.
Cable length and quality are adequate for the price, improving practical use cases. The inclusion of both straight and spiral cables is a thoughtful addition enhancing portability and flexibility.
Conclusions
The OneOdio Pro 20 Black headphones represent an excellent value proposition in the budget category. Delivering punchy, clear sound with surprisingly good detail given their £34 price tag, these headphones suit hobbyists, home studio users and casual listeners seeking more bass presence without sacrificing midrange or treble clarity.
While some compromises exist around ear pad size and material feel, these are offset by features such as detachable cables, dual connectors and a carrying case. Compared to several competitors including some more costly models, the Pro 20 holds its own reasonably well.
Users looking for lightweight, robust, wired headphones with a warm, dynamic sound profile will find the OneOdio Pro 20 Black a smart choice. It is recommended particularly for those who value extra bass impact and versatility without a high price investment.
