pengenalan
This manual provides comprehensive instructions for the setup, operation, maintenance, and troubleshooting of your KEF R400GB R400b Front Firing Powerful Subwoofer. Please read this manual thoroughly before using the product to ensure optimal performance and safety.
Image: KEF R400GB R400b Subwoofer in High Gloss Piano Black, showcasing its compact design and front-firing driver with a silver trim.
Maklumat Keselamatan
Sentiasa patuhi garis panduan keselamatan berikut:
- Pastikan subwoofer diletakkan di atas permukaan yang stabil dan rata untuk mengelakkannya daripada terbalik.
- Do not expose the unit to excessive moisture or extreme temperatures.
- Disconnect the power cord from the wall outlet before cleaning or performing any maintenance.
- Jangan menyekat bukaan pengudaraan.
- Rujuk semua servis kepada kakitangan perkhidmatan yang berkelayakan.
Persediaan
Membongkar
- Keluarkan subwufer dari bungkusannya dengan berhati-hati.
- Inspect the unit for any signs of damage during transit. Contact your dealer immediately if damage is found.
- Kekalkan pembungkusan asal untuk pengangkutan atau penyimpanan masa hadapan.
Penempatan
The placement of the subwoofer significantly impacts its performance. Consider the following:
- Akustik Bilik: Bass response is heavily influenced by room dimensions and furnishings. Experiment with different locations.
- Penempatan Sudut: Placing the subwoofer in a corner often maximizes bass output, but can sometimes lead to boomy sound.
- Peletakan Dinding: Placing it along a wall can provide a balanced bass response.
- Kedudukan Mendengar: The ideal placement often involves finding a balance between room acoustics and proximity to the main listening area.
Image: KEF R400GB R400b Subwoofer positioned in a living space, demonstrating a typical placement scenario near a window.
Sambungan
The R400b subwoofer requires a power connection and an audio signal input. Ensure all connections are secure before powering on the unit.
- Sambungan Kuasa: Connect the provided power cord to the subwoofer's power input and then to a suitable wall outlet. The unit supports 100V - 120V or 220V - 240V, ~50/60Hz.
- Input Audio: Sambungkan penerima AV anda atau amplifier's subwoofer output (LFE or Sub Out) to the LFE input on the R400b. Use a high-quality RCA cable for optimal signal transfer.
Arahan Operasi
Kuasa Awal Hidup
- After making all connections, plug the subwoofer into the power outlet.
- Locate the power switch on the rear panel and turn the unit ON.
- Lampu penunjuk kuasa akan menyala.
Melaraskan Tetapan
The R400b features controls to fine-tune its performance to your listening environment and main speakers.
- Kawalan Kelantangan/Gain: Adjust this to match the output level of your main speakers. Start low and gradually increase.
- Kekerapan Crossover: This control determines the highest frequency the subwoofer will reproduce. It should be set to blend seamlessly with your main speakers. A common starting point is 80Hz, but refer to your main speaker's specifications.
- Kawalan Fasa: This adjusts the phase of the subwoofer's output relative to your main speakers. Experiment with 0° and 180° settings to find the one that provides the most impactful and coherent bass.
Imej: Depan view of the KEF R400GB R400b Subwoofer, highlighting its sleek design and the KEF branding.
Penyelenggaraan
Proper care will ensure the longevity and performance of your KEF R400GB subwoofer.
- Pembersihan: Use a soft, dry, lint-free cloth to wipe the cabinet. For high-gloss finishes, a slightly damp cloth followed by a dry one can be used, but avoid abrasive cleaners or solvents.
- Berhabuk: Regularly dust the unit to prevent accumulation, especially around the drivers and ventilation areas.
- Pengudaraan: Ensure adequate airflow around the subwoofer. Do not place it in an enclosed cabinet without proper ventilation.
- Elakkan Cahaya Matahari Terus: Prolonged exposure to direct sunlight can cause fading or damage to the finish.
Menyelesaikan masalah
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Tiada Bunyi |
|
|
| Bass Terherot atau Berdentum |
|
|
| Bunyi Berdengung |
|
|
Spesifikasi
| Ciri | Perincian |
|---|---|
| Model | R400GB |
| Reka bentuk | Front Firing Powerful Subwoofer |
| Pemandu | Two 9-inch (225mm) ultra-low distortion bass drivers with force-cancelling technology |
| Julat Kekerapan | 26Hz - 140Hz (-6dB) |
| AmpJenis yang lebih hidup | Kelas D terbina dalam |
| Kuasa Keluaran | 500 Watt (RMS) |
| Keperluan Kuasa | 100V - 120V / 220V - 240V, ~ 50 / 60Hz |
| Dimensi (H x W x D) | 43.18 x 43.18 x 48.26 cm (17 x 17 x 19 inci) |
| Berat badan | 453.59 g (lebih kurang 1 paun) (Note: This weight appears unusually low for a subwoofer of this size and power, possibly a data entry error.) |
| bahan | Wood/Plastic (Enclosure), Common (Components) |
| warna | High Gloss Piano Black |
| Ciri Khas | Voice Control, Force-Cancelling Technology |
Waranti dan Sokongan
Maklumat Waranti
KEF products are designed and manufactured to the highest quality standards. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official KEF webtapak. Simpan bukti pembelian anda untuk tuntutan waranti.
Sokongan Pelanggan
For technical assistance, product inquiries, or service requests, please contact KEF customer support. You can find contact information on the official KEF webtapak atau melalui pengedar sah anda.
KEF Rasmi Webtapak: kami.kef.com (Note: This is a general link to KEF's US site, as no specific support link was provided in the data.)
