Field Test · Studio Gear Review
Avantone Planar the II Black
Technical Analysis of Avantone’s Open-Back Planar Headphones
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Spec Sheet
- Magnetostatic
- Open construction
- Circumaural
- 21 Micron PET diaphragm
- Transducer size: 70 x 95 mm
- Frequency range: 30 – 30,000 Hz
- Max. sound pressure level: > 130 dB
- Impedance: 32 Ohm
- Sensitivity: 104 dB/mW
- Interchangeable ear pads
- Inputs on both sides
- Weight: 510 g
- Finish: Black
- Incl. 1.5 m connection cable with 3.5 mm stereo jack, adapter plug 3.5 mm to 6.3 mm jack and carrying bag
Studio Log
| Available since | October 2023 |
|---|---|
| Item number | 578466 |
| Sales Unit | 1 piece(s) |
| Design | Over-Ear |
| System | Open |
| Impedance | 32 Ohms |
| Frequency range | 30 Hz – 30000 Hz |
| Adapter | Yes |
| Replacable Cable | Yes |
| Marrone/Argento | Black |
| Sensitivity | 104 dB |
| Type Of Connector | Mini Jack |
| Weight | 510 g |
Demo Footage
Field Photography
QC Pass — Field Test
Customer Review Summary
Introduction
The Avantone Planar the II Black headphones present themselves as an open-back, magnetostatic model designed for critical listening and studio mixing. Priced at £381 and released in October 2023, these circumaural headphones aim to deliver a detailed and transparent listening experience with technical features suited to professional environments.
Design and Build Quality
Featuring an open construction and an over-ear design, the Planar the II Black weighs 510 grams. The ear pads are replaceable, adding to the product’s longevity, although availability of replacements remains an issue according to user feedback. The headphones come with a 1.5-metre detachable cable terminated by a 3.5mm stereo mini jack, including a 6.3mm adapter and a carrying bag for convenience. Input sockets are provided on both ear cups, offering flexibility in cable routing.
Materials and Ergonomics
The diaphragm measures 21 microns and is constructed from PET, coupled with a sizeable 70 by 95 mm transducer, which facilitates a broad and natural soundstage. The open-back design enhances spatial perception but invites environmental noise, which should be considered in non-studio settings. Notably, the circumaural fit distributes pressure evenly, an advantage noted by users who wear glasses, contrasting with tighter models like the Sennheiser HD 650.
Technical Performance
- Impedance: 32 Ohms, allowing compatibility with portable devices and professional audio interfaces without additional amplification.
- Frequency Response: 30 Hz to 30,000 Hz, covering a broad spectrum well beyond human hearing, allowing precision in high-frequency reproduction and low-end depth.
- Sensitivity: 104 dB/mW, which contributes to a high output volume and clarity.
- Maximum Sound Pressure Level: Over 130 dB, ensuring dynamic range suitable for detailed monitoring without distortion.
The magnetostatic driver technology enables rapid transient response and a clean midrange, attributes essential for critical listening tasks such as mixing and mastering. This is supported by user experiences noting that instruments compressed in modern mixes remain well-defined, and vocal subtleties are distinct.
Sound Quality
Users have consistently praised the Planar the II Black for its clear, analytical sound and spatial accuracy. Compared to closed-back models like the Sennheiser HD 650, these headphones exhibit greater transient precision and reduced muddiness. Error detection in audio mixes is reportedly more straightforward, making these headphones invaluable in studio work.
Despite their open design, they are versatile, delivering reliable performance across various playback systems including desktop setups, portable devices, and interfaces such as the Apollo. This versatility adds value to their cost and practical use.
Limitations and Considerations
While the technical aspects are strong, some users noted minor build inconsistencies, such as cable manufacturing defects. The 1.5-metre cable supplied appears longer in practice and suffers from questionable finish quality. Replacement ear pads, though theoretically available, are not easily sourced online, which may restrict long-term maintenance.
The open-back nature means these headphones are not suitable for noisy environments or recording situations where sound isolation is required. However, this is an expected trade-off for the clarity and openness offered.
Conclusion
The Avantone Planar the II Black headphones provide a compelling option for professionals seeking precise, transparent monitoring at a reasonable price point. The combination of magnetostatic drivers and quality construction makes for a detailed sonic experience with strong technical specifications. Despite minor shortcomings in accessory availability and cable finish, these headphones excel in the studio for mixing, mastering, and critical listening applications. Their ergonomic fit and balanced sound make them a worthy choice for discerning listeners prioritising accuracy over isolation.
