beyerdynamic 481807
beyerdynamic DT 990 Premium Edition 250 Ohm Headphones
Manuale d'uso

Introduzione
The beyerdynamic DT 990 Premium Edition 250 Ohm headphones are high-definition, open-designed over-ear stereo headphones engineered for discerning audiophiles. Manufactured in Germany, these headphones are renowned for their superior craftsmanship, dynamic audio reproduction, and exceptional wearing comfort. This manual provides essential information for the proper use and care of your DT 990 headphones.

Image: The beyerdynamic DT 990 Premium Edition 250 Ohm headphones, showcasing their open-back design and plush earcups.
Cosa c'è nella scatola
Upon unboxing your beyerdynamic DT 990 Premium Edition headphones, please ensure all the following components are present:
- Beyerdynamic DT 990 - 250 Ohm Grey Headphones
- Custodia morbida
- 3.5mm to 1/4" Adapter

Immagine: Pro lateralefile of the DT 990 headphones, highlighting the earcups and headband.
Impostare
The DT 990 Premium Edition 250 Ohm headphones are designed for optimal performance with home stereo systems and high-fidelity audio equipment. Follow these steps for initial setup:
- Disimballare: Carefully remove the headphones and accessories from their packaging.
- Identificare la connessione: The headphones come with a 3.5mm mini-jack plug.
- Use Adapter (if needed): If your audio source (e.g., stereo receiver, amplifier) has a 1/4" (6.35mm) headphone output, attach the included 1/4" adapter to the 3.5mm plug of the headphones.
- Collegare: Insert the headphone plug (with or without adapter) firmly into the headphone output jack of your audio device.
- Regola la fascia: Place the headphones on your head and adjust the headband for a comfortable and secure fit. The earcups should fully enclose your ears.

Immagine: Frontale view of the DT 990 headphones, showing the earcups and the adjustable headband.
Operativo
Once connected, operating your DT 990 headphones is straightforward:
- Sorgente audio di accensione: Ensure your stereo system or audio device is powered on and playing audio.
- Regola volume: Use the volume control on your audio source to set the listening level. Start with a low volume and gradually increase it to a comfortable level. Avoid excessively high volumes to prevent hearing damage.
- Godere: The open-back design of the DT 990 provides a spacious and natural soundstage, ideal for critical listening and enjoying high-fidelity audio.

Image: The DT 990 headphones displayed on a wooden headphone stand, illustrating their elegant design and suitability for home use.
Manutenzione
Proper care will ensure the longevity and performance of your DT 990 headphones:
- Pulizia: Use a soft, dry cloth to wipe down the exterior of the headphones. For the ear pads, which are often made of velour, a lint roller or a slightly damp cloth can be used for light cleaning. Avoid harsh chemicals or abrasive materials.
- Sostituzione dei cuscinetti auricolari: The ear pads are designed to be replaceable. If they become worn or damaged over time, new ear pads can be purchased from authorized beyerdynamic retailers. Refer to the official beyerdynamic website or support for replacement instructions.
- Magazzinaggio: When not in use, store the headphones in the included soft carrying case to protect them from dust and physical damage. Avoid exposing them to extreme temperatures or humidity.
- Cura del cavo: Avoid sharp bends or excessive pulling on the cable. Do not wrap the cable tightly around the headphones.
Risoluzione dei problemi
If you encounter issues with your DT 990 headphones, try the following solutions:
| Problema | Possibile causa | Soluzione |
|---|---|---|
| Nessun suono | Headphone plug not fully inserted; Audio source not playing or volume too low; Incorrect input selected on audio source. | Ensure plug is fully inserted. Check audio source volume and playback. Verify correct input selection on your stereo system. |
| Suono distorto | Volume too high; Faulty audio source; Damaged cable or headphones. | Reduce volume. Test with another audio source. Inspect cable for damage. If issues persist, contact support. |
| Suona solo in un orecchio | Plug not fully inserted; Cable damage; Balance setting on audio source. | Ensure plug is fully inserted. Check audio source balance settings. Inspect cable for damage. |
Specifiche
| Caratteristica | Specificazione |
|---|---|
| Nome del modello | DT990 |
| Impedenza | 250 Ohm |
| Gamma di frequenza | 5 Hz - 35 kHz |
| Tecnologia di connettività | Cablato |
| Presa per cuffie | 3.5 mm Jack |
| Posizionamento dell'orecchio | Sopra l'orecchio |
| Fattore di forma | Sopra l'orecchio |
| Peso dell'articolo | 290 grammi (10.2 once) |
| Dimensioni del prodotto | 7 x 4 x 8.5 pollici |
| Colore | Grigio |
| Produttore | beyerdynamic |
| Dispositivi compatibili | Sistema stereo |
| Componenti inclusi | 3.5mm to 1/4" Adapter, Beyerdynamic DT 990 - 250 Ohm Grey Headphones, Soft Carrying Case |
Garanzia e supporto
Your beyerdynamic DT 990 Premium Edition headphones come with a Garanzia di 2 anno for parts and labor, serviceable in the U.S.A.
For technical support, warranty claims, or inquiries regarding replacement parts (such as ear pads), please contact beyerdynamic USA directly. You can often find contact information and additional resources on the official beyerdynamic websito o tramite il venditore da cui hai acquistato il prodotto.
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