Field Test · Studio Gear Review
Superlux HD-681 Evo WH
A technical assessment of Superlux’s HD-681 Evo WH studio headphones
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Spec Sheet
- Semi-open
- Circumaural
- Dynamic
- Self-adjusting headband for comfort
- 50 mm drivers
- Peak SPL: 98 dB
- Impedance: 32 Ohm
- Frequency Range: 10 – 30,000 Hz
- Power Consumption: 300 mW
- Detachable cable
- 1 m and 3 m cables with 3.5 mm stereo jack
- Weight (including cable): 291 g
- Weight (excluding cable): 269 g
- Colour: White
- Includes: 6.3 mm stereo jack adapter, carry bag and one pair of Velour earpads
Studio Log
| Available since | April 2013 |
|---|---|
| Item number | 297906 |
| Sales Unit | 1 piece(s) |
| Design | Over-Ear |
| System | Semi Open |
| Impedance | 32 Ohms |
| Frequency range | 10 Hz – 30000 Hz |
| Adaptor | Yes |
| Replaceable Cable | No |
| Colour | White |
| Sensitivity | 98 dB |
| Max. SPL | 98 dB |
| Type Of Connector | Mini Jack |
| Adapter | Yes |
| Weight | 269 g |
| Marrone/Argento | White |
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Field Photography
QC Pass — Field Test
Customer Review Summary
Introduction
The Superlux HD-681 Evo WH headphones, available since 2013, are a budget semi-open over-ear model designed primarily for studio monitoring and casual music enjoyment. Priced at around £28, they employ 50mm dynamic drivers, a self-adjusting headband and come equipped with two detachable cables, Velour earpads, and a 6.3mm stereo adapter. This review examines how effectively they blend sound quality, comfort and build within their entry-level price bracket.
Design and Build Quality
The HD-681 Evo WH features a white, plastic frame that is lightweight, weighing 269g excluding the cable. Despite its weight, the headphones have a somewhat bulky profile caused largely by the sizeable circumaural earcups designed to fit around the ears fully. The build quality is functional but unsurprisingly utilitarian and somewhat fragile; multiple users have reported issues with cable durability and plastic components breaking after regular use. The detachable cable system involves a male 3.5mm jack on the left earcup, permitting easy cable replacement, an uncommon feature at this price point.
A carrying bag and a pair of alternative velour earpads provide options for added comfort or durability. The Velour pads are favoured for longer sessions due to better breathability compared to the supplied synthetic leather pads, which tend to trap heat. The headband employs a self-adjusting mechanism rather than traditional sliders, which some users may find less secure, especially on smaller heads, as the headphones can feel slightly loose.
Sound Performance
The HD-681 Evo WH is equipped with 50mm drivers producing a frequency response of 10Hz to 30,000Hz, an impedance of 32 Ohms and a sensitivity of 98 dB. These specifications collectively ensure a broad, detailed sound capable of revealing subtle elements within music and mixes.
Reviewers consistently highlight the headphones’ clear, detailed sound signature with a notable emphasis on bass depth and presence. The bass is generally warm and full without muddiness, contributing to a satisfying soundstage that is wider than some closed-back alternatives, enhancing the spatial feel of music or game audio. Midrange reproduction is considered natural and well defined, though some accounts describe it as slightly recessed when bass-heavy tracks dominate. High frequencies are crisp and clear, with reduced harshness compared to earlier Superlux models known for fatiguing trebles.
While not perfectly neutral, due to the tasteful bass lift, the HD-681 Evo WH handles a variety of musical genres well, from classical to electronic, offering enjoyment over analytical precision, making them less ideal for critical mixing but excellent for casual listening or gaming.
Comfort and Usability
Comfort is mixed but largely positive. The fairly light weight and self-adjusting headband help distribute pressure comfortably across the head. However, the headphones can cause warmth and itchiness after extended wear, particularly with the synthetic leather earpads. The velour replacements alleviate this issue somewhat. Several users report discomfort around the ears after prolonged sessions, with pressure deemed moderate.
Included cables measure 1m and 3m, catering to portable and studio-like setups respectively. Their flexible nature and detachable design add convenience but durability is a known weak point, requiring careful handling or aftermarket replacements for longevity. The provided 6.3mm adapter extends compatibility to professional audio equipment.
Strengths and Limitations
- Sound Quality: Exceptional for the price; clear, detailed and with a pleasing bass response.
- Value for Money: Competes well with headphones costing significantly more, delivering a near-professional listening experience.
- Detachable Cables: Includes two lengths and allows custom replacements, rarely seen at this price.
- Comfort: Generally good fit with velour pads recommended for longer use.
- Build Quality: Predominantly plastic construction prone to wear and cable failures; requires careful treatment.
- Fit: Self-adjusting headband may feel loose for some; limited adjustment options.
- Sound Isolation: Semi-open design offers moderate ambient noise leakage and spatial sound but less external noise blocking.
Conclusion
Superlux’s HD-681 Evo WH headphones deliver sound quality that belies their modest price. Their detailed and enjoyable sonic character, spacious soundstage and included accessories position them as excellent value for anyone requiring an affordable semi-open headphone, be it for casual listening, gaming, or light studio work. However, their plastic build and fragile cables temper enthusiasm, signalling these headphones are best suited for users who prioritise audio performance over rugged durability.
Those seeking critical monitoring precision or high-end durability may find better options at higher prices, but as an entry-level studio or everyday headphone, the HD-681 Evo WH remains a compelling choice that repeatedly receives high praise from both amateurs and enthusiasts alike.
