pengenalan
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.
Apa yang ada dalam Kotak
Upon unboxing your beyerdynamic DT 990 Premium Edition headphones, please ensure all the following components are present:
- Beyerdynamic DT 990 - 250 Ohm Grey Headphones
- Kes Membawa Lembut
- 3.5mm to 1/4" Adapter
Imej: Side profile of the DT 990 headphones, highlighting the earcups and headband.
Persediaan
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:
- Bongkar: Carefully remove the headphones and accessories from their packaging.
- Identify Connection: The headphones come with a 3.5mm mini-jack plug.
- Gunakan Penyesuai (jika perlu): 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.
- Sambung: Insert the headphone plug (with or without adapter) firmly into the headphone output jack of your audio device.
- Laraskan ikat kepala: Place the headphones on your head and adjust the headband for a comfortable and secure fit. The earcups should fully enclose your ears.
Imej: Depan view of the DT 990 headphones, showing the earcups and the adjustable headband.
Beroperasi
Once connected, operating your DT 990 headphones is straightforward:
- Hidupkan Sumber Audio: Ensure your stereo system or audio device is powered on and playing audio.
- Laraskan Kelantangan: 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.
- Nikmati: 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.
Penyelenggaraan
Proper care will ensure the longevity and performance of your DT 990 headphones:
- Pembersihan: 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.
- Penggantian Pad Telinga: 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.
- Storan: 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.
- Penjagaan Kabel: Avoid sharp bends or excessive pulling on the cable. Do not wrap the cable tightly around the headphones.
Menyelesaikan masalah
If you encounter issues with your DT 990 headphones, try the following solutions:
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Tiada bunyi | 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. |
| Bunyi herot | 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. |
| Bunyi hanya dalam satu telinga | 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. |
Spesifikasi
| Ciri | Spesifikasi |
|---|---|
| Nama Model | DT990 |
| Impedans | 250 Ohm |
| Julat Kekerapan | 5 Hz - 35 kHz |
| Teknologi Ketersambungan | berwayar |
| Jack Fon Kepala | Jack 3.5 mm |
| Penempatan Telinga | Atas Telinga |
| Faktor Bentuk | Atas Telinga |
| Berat Barang | 290 Gram (10.2 auns) |
| Dimensi Produk | 7 x 4 x 8.5 inci |
| warna | Kelabu |
| Pengeluar | Beyerdynamic |
| Peranti Serasi | Sistem stereo |
| Komponen yang Disertakan | 3.5mm to 1/4" Adapter, Beyerdynamic DT 990 - 250 Ohm Grey Headphones, Soft Carrying Case |
Waranti dan Sokongan
Your beyerdynamic DT 990 Premium Edition headphones come with a Waranti 2 tahun 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 webtapak atau melalui penjual dari mana anda membeli produk tersebut.
Manual Pengguna (PDF) rasmi juga tersedia untuk dimuat turun: Muat turun Manual Pengguna (PDF)
