Field Test · Studio Gear Review
HEDD HEDDphone Two
Examining the technical design and performance of HEDD’s latest open-back headphone
HEDD
- HEDDphone Two Studio Headphones
- Second-gen full-range AMT headphones
- Built for committed studio work
- Accessories & matching items
- 2Customer ratings
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Spec Sheet
- Open-back design
- Circumaural
- With Air Motion Transformer drivers (electrodynamic transducer) and Variable Velocity Transformation (VVT)
- Frequency range: 10 Hz – 40,000 Hz
- Max. SPL: 89 dB @ 1 mW
- Impedance: 41 Ohm
- Adjustable headband (height, width, bend and clamping pressure)
- Synthetic leather head and ear pads
- Kevlar-reinforced cables (braided)
- Made from materials including carbon fibre and magnesium for low weight
- Weight: 550 g
- 6.3 mm jack 2.2 m cable
- 4.4 mm jack 2.2 m cable
- 6.3 mm to 3.5 mm jack 3-pin audio adapter
- 4.4 mm Jack to 4-pin XLR, balanced, 4-pin audio adapter
- Transport case
- Replacement ear cushions
Studio Log
| Available since | October 2023 |
|---|---|
| Item number | 578108 |
| Sales Unit | 1 piece(s) |
| Design | Over-Ear |
| System | Open |
| Impedance | 41 Ohms |
| Frequency range | 10 Hz – 40000 Hz |
| Adaptor | Yes |
| Replaceable Cable | Yes |
| Colour | Black |
| Max. SPL | 89 dB |
| Type Of Connector | Jack(stereo) |
| Weight | 550 g |
Demo Footage
Field Photography
QC Pass — Field Test
Customer Review Summary
Introduction
The HEDD HEDDphone Two arrived in October 2023 as an over-ear, open-back headphone designed for discerning listeners and professionals alike. Priced at £1,666, it incorporates innovative acoustic technology uncommon in typical headphones. This review delves into the technical construction, sound profile, and user experience based on specifications and real-world reports.
Design and Build Quality
The HEDDphone Two adopts a circumaural, open-back design that emphasises natural sound reproduction. The use of carbon fibre and magnesium in its chassis keeps the weight at a reasonable 550 grams, though some users report the headset feels heavier during extended sessions. The adjustable headband provides fine control over height, width, bend, and clamping pressure, allowing a customised fit. Synthetic leather ear pads and head cushions contribute to comfort, while included replacement cushions add to long-term usability.
Cabling and Connectivity
The headphones come with two braided Kevlar-reinforced cables, each 2.2 metres long, terminating in 6.3 mm and 4.4 mm jacks respectively. Additional adapters include a 6.3 mm to 3.5 mm stereo jack and a 4.4 mm balanced 4-pin XLR adapter. This offers flexibility across a spectrum of audio devices, including professional high-end equipment. The replaceable cable design is a practical choice for maintenance and longevity.
Driver Technology
Central to the HEDDphone Two’s sonic character are the Air Motion Transformer (AMT) drivers paired with Variable Velocity Transformation (VVT) technology. AMT drivers operate on an electrodynamic principle different from conventional dynamic or planar magnetic drivers. This allows for highly detailed and fast transient response, particularly in the critical midrange and treble frequencies.
- Frequency response extends from 10 Hz to 40,000 Hz, covering and surpassing the standard audible spectrum, which translates to rich lows and a revealing treble range.
- The impedance stands at 41 Ohms, a value enabling compatibility with a variety of headphone amplifiers.
- Maximum sound pressure level is rated at 89 dB per 1 milliwatt, sufficient for detailed listening without risking hearing fatigue under normal conditions.
Acoustic Impact of Open-Back System
The open design ensures air circulation around the driver, reducing pressure accumulation and contributing to a natural spaciousness in the sound stage. This design, while excellent for critical listening environments, means sound isolation is limited, and use in noisy environments may not be ideal.
Audio Performance
Reports from actual use describe the HEDDphone Two delivering exceptionally detailed audio reproduction. The midrange clarity and treble precision stand out, showcasing the effectiveness of the AMT drivers. Bass response is notable for extension rather than sheer impact, reflecting the headphone’s focus on accuracy over enhancement.
Such characteristics make this headphone a valuable tool in music production, particularly for genres where precise monitoring is paramount. However, the overall weight and adjustment characteristics require some habituation during long sessions, especially for users accustomed to lighter models.
Additional Features and Accessories
- Transport case included for secure carrying and protection
- Replacement ear cushions supplied to maintain comfort over time
- Multiple adapters increase compatibility with diverse audio setups
Conclusion
The HEDD HEDDphone Two offers a sophisticated listening experience built around unique Air Motion Transformer technology and meticulous engineering. Enthusiasts seeking transparency and precision will find value, particularly in professional environments where faithful sound reproduction is critical. While the price point and weight may limit appeal to casual listeners, the combination of advanced drivers, ergonomic adjustability, and robust accessories justifies consideration among serious audiophiles and production professionals.
