1. Introducció
The Superlux HD681 are semi-open studio headphones designed for a wide range of audio applications, including professional monitoring, recording, mixing, podcasting, and general music enjoyment. Featuring 50mm neodymium drivers, these headphones deliver a balanced audio experience with a broad frequency response, deep bass, and clear highs. Their lightweight and comfortable design ensures suitability for extended listening sessions.

Figure 1: Superlux HD681 Semi-Open Studio Headphones
2. Característiques clau
- Accurate & Detailed Sound: Balanced audio with a 10–30,000 Hz frequency range, 50mm neodymium drivers for vivid detail, deep bass, clear highs, and wide soundstage.
- Deep Low-Frequency Impact: Specially tuned for rich low-end depth, ideal for classical music and large ensembles.
- Disseny còmode: Self-adjusting headband and soft vinyl earpads for long-term comfort. Lightweight build (9.9 ounces).
- Single-Sided Cable: Durable 2.5-meter (8.2 ft.) straight, single-sided cable with screw-on gold-plated stereo mini plug.
- Professional Versatility: 32 Ω impedance and 300 mW maximum power, adaptable to various settings including mixing, tracking, and general listening.

Figure 2: Ultra-wide Frequency Response for detailed audio.
Vídeo 1: Acabatview of Superlux HD681 Semi-Open Back Headphones, showcasinCaracterístiques i disseny clau de g.
3. Configuració
The Superlux HD681 headphones are designed for simple plug-and-play operation. Follow these steps to connect your headphones:
- Identify the Audio Source: Determine if your audio device requires a 3.5mm or 6.3mm audio jack.
- Connecteu el cable: The headphones come with a 3.5mm stereo mini plug. If your device requires a 6.3mm connection, attach the included screw-on 6.3mm adapter to the 3.5mm plug.
- Connectar: Insert the appropriate audio jack into your device's headphone output.
- Ajustar la diadema: The self-adjusting headband will automatically conform to your head size for a comfortable fit.

Figure 3: Connecting the 3.5mm plug and 6.3mm adapter.
4. Instruccions de funcionament
Once connected, the Superlux HD681 headphones are ready for use. Adjust the volume on your audio source to a comfortable listening level. These headphones are suitable for a variety of applications:
- Escolta de música: Enjoy high-fidelity audio for all music genres, especially classical, with their wide soundstage and clear dynamics.
- Studio Monitoring: Use for critical listening during recording, mixing, and tracking sessions.
- Jocs: Experience immersive sound for gaming with clear audio cues.
- Podcasting & Content Creation: Ideal for monitoring audio during podcast recording or video production.

Figure 4: Enjoying music with the HD681 headphones.
5. Manteniment
To ensure the longevity and optimal performance of your Superlux HD681 headphones, follow these maintenance guidelines:
- Neteja: Netegeu els auriculars amb un drap suau i sec. Eviteu utilitzar productes químics agressius o materials abrasius.
- Cura de les coixinetes de les orelles: The vinyl earpads can be gently cleaned with a damp cloth. For replacement, refer to the earpad replacement tutorial video.
- Cura del cable: Eviteu doblegar el cable bruscament o estirar-lo massa per evitar danys.
- Emmagatzematge: Store the headphones in a cool, dry place, preferably in the included travel pouch, to protect them from dust and physical damage.
Video 2: Earpad Replacement Tutorial Video for Superlux HD681 series headphones.
6. Solució De Problemes
If you encounter issues with your Superlux HD681 headphones, try the following solutions:
- Sense so:
- Ensure the audio cable is securely plugged into both the headphones and the audio source.
- Comproveu el nivell de volum de la font d'àudio i assegureu-vos que no estigui silenciat.
- Prova els auriculars amb una font o dispositiu d'àudio diferent per descartar un problema específic del dispositiu.
- Poor Sound Quality (Distortion, Hissing):
- Verify that the audio cable connections are firm.
- Reduce the volume on your audio source if distortion occurs at high levels.
- Assegureu-vos que la font d'àudio reprodueix àudio d'alta qualitat files. Low-quality audio can result in poor sound.
- Check for any damage to the cable or headphone drivers.
- Ajust incòmode:
- Allow the self-adjusting headband to settle.
- Ensure the earpads are correctly positioned over your ears.
7. Especificacions

Figure 5: Dimensions of the Superlux HD681 headphones.
| Característica | Detall |
|---|---|
| Nom del model | HD681 |
| Marca | Superlux |
| Col·locació de l'orella | Sobre l'orella |
| Factor de forma | Sobre l'orella |
| Tecnologia de connectivitat | Amb cable |
| Conector d'auriculars | 3.5 mm Jack |
| Impedància | 32 ohms |
| Tipus de controlador d'àudio | Conductor dinàmic |
| Pes de l'article | 9.9 unces (0.28 quilograms) |
| Dimensions del producte | 4.21 x 7.36 x 7.87 polzades |
| Interval de freqüència | 10-30,000 Hz |
| Potència màxima | 300 mW |
8. Què hi ha a la caixa
Your Superlux HD681 package includes the following items:
- Superlux HD681 Semi-Open Studio Headphones
- 2.5-meter (8.2 ft.) straight, single-sided cable with 3.5mm stereo mini plug
- Screw-on 6.3mm adapter
- Bossa de viatge

Figure 6: What's included in the Superlux HD681 package.
9. Garantia i Suport
For product support, technical assistance, or warranty inquiries, please refer to the official Superlux website or contact your retailer. Specific warranty details may vary by region and retailer.





