pengenalan
Thank you for choosing the LEGACY LA978 1200 Watt 2 Channel Bridgeable Mosfet Amplifier. This manual provides detailed instructions for installation, operation, and maintenance to ensure optimal performance and longevity of your amplifier. Please read this manual thoroughly before attempting installation or operation.
Ciri-ciri Utama
- 600 Watts x 2 Output (Stereo)
- 1200 Watts x 1 Bridged Output (Mono)
- Rangkaian Silang Elektronik Hi/Lo Pembolehubah
- Peningkatan Bass Pembolehubah
- Kawalan Tahap Input Berubah (Gain).
- Bekalan Kuasa PWM MOSFET
- Penunjuk LED Power ON
- Penunjuk Perlindungan LED
- Remote Bass Boost Capability
- Hi/Lo Impedance Input
- Thermal / Overload / Short Circuit Protection
- Anti-Thump Turn-On Circuitry
Maklumat Keselamatan
Arahan Keselamatan Penting:
- Sentiasa putuskan sambungan terminal negatif bateri kenderaan sebelum memulakan sebarang pemasangan.
- Pastikan pembumian yang betul untuk mengelakkan bahaya elektrik.
- Use appropriate gauge wiring for power and speaker connections to avoid overheating and damage.
- Lekapkan amplifier securely in a well-ventilated area, away from moisture and direct sunlight.
- Jangan kendalikan amplifier if it has been exposed to water or sustained physical damage.
- Seek professional assistance if you are unsure about any installation steps.
Persediaan dan Pemasangan
Pemasangan yang betul adalah penting untuk prestasi dan keselamatan peranti anda amplifier. Refer to the diagrams below for connection details.
Memasang Amplebih hidup
Choose a mounting location that is dry, well-ventilated, and secure. Avoid mounting on carpet or in enclosed spaces that restrict airflow. Ensure sufficient space around the amppelapis untuk pelesapan haba.
Imej: Atas view of the Legacy LA978 amplifier, showing its compact design and heat sink fins. This image illustrates the overall physical appearance of the unit.
Sambungan Kuasa
- +12V (Kuasa): Connect directly to the positive terminal of the vehicle's battery using a fuse holder within 18 inches of the battery.
- GND (Tanah): Connect to a clean, unpainted metal surface of the vehicle chassis. Ensure a solid connection.
- REM (Penghidupan Jauh): Connect to the remote output of your head unit. This wire turns the amplifier on and off with your car stereo.
Sambungan Input Audio
- RCA Inputs (Low-Level): Connect to the RCA pre-amp outputs of your head unit.
- Input Tahap Tinggi: If your head unit does not have RCA outputs, use the high-level inputs by connecting them to your speaker wires.
Sambungan Keluaran Speaker
- Mod Stereo (2 Saluran): Connect one speaker to the left channel outputs (+ and -) and another speaker to the right channel outputs (+ and -).
- Bridged Mode (1-Channel Mono): For higher power output to a single subwoofer, bridge the amplifier. Connect the positive terminal of the speaker to the positive output of one channel and the negative terminal of the speaker to the negative output of the other channel (refer to specific bridging instructions on the amplifier or in a detailed wiring diagram). The LA978 offers 1200 Watts x 1 bridged output.
Arahan Operasi
Setelah dipasang, laraskan amptetapan pencahayaan untuk prestasi bunyi yang optimum.
Kawalan Tahap Input Berubah (Gain).
Kawalan ini sepadan dengan amplifier's input sensitivity to the output of your head unit. Start with the gain control at minimum, then slowly increase it until you hear distortion, then back it off slightly. Do not use the gain control as a volume knob.
Rangkaian Silang Elektronik Hi/Lo Pembolehubah
Use the crossover controls to filter frequencies. A Penapis Lulus Rendah (LPF) allows only low frequencies to pass, ideal for subwoofers. A Penapis Lulus Tinggi (HPF) allows only high frequencies to pass, ideal for full-range speakers or tweeters. Adjust these settings to match your speakers' capabilities and desired sound.
Peningkatan Bass Pembolehubah
This feature allows you to increase the bass output at a specific frequency. Use sparingly to avoid distortion and potential speaker damage. The amplifier also supports a Peningkatan Bass Jauh for convenient adjustment from the driver's seat (remote sold separately or included depending on package).
Penunjuk LED
- Kuasa HIDUP LED: Bercahaya apabila amplifier is receiving power and operating normally.
- LED perlindungan: Bercahaya apabila amplifier detects a fault (e.g., thermal overload, short circuit, low voltage). If this LED lights up, immediately turn off your audio system and troubleshoot the issue.
Penyelenggaraan
- Pembersihan: Gunakan kain lembut dan kering untuk membersihkannya ampbahagian luar penapis. Jangan gunakan bahan kimia yang keras atau pembersih yang kasar.
- Pengudaraan: Memastikan bahawa amplifier's cooling fins are free from dust and obstructions to maintain proper airflow and prevent overheating.
- Sambungan: Periodically check all power, ground, and speaker connections to ensure they are secure and free from corrosion.
Menyelesaikan masalah
Jika anda mengalami masalah dengan anda amplifier, rujuk kepada masalah dan penyelesaian biasa berikut:
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| No Power (Power LED Off) | Fius putus, wayar kuasa/pembumian/alat kawalan jauh longgar, output alat kawalan jauh unit kepala rosak. | Check fuse, verify all power connections, test remote wire for 12V. |
| LED Perlindungan Dihidupkan | Short circuit in speaker wiring, amplifier overheating, low voltage. | Check speaker wires for shorts, ensure proper ventilation, verify battery voltage. Allow ampliifier untuk menyejukkan badan. |
| Tiada Keluaran Bunyi | Loose RCA cables, incorrect gain setting, speaker wires disconnected, head unit settings. | Check all audio connections, adjust gain, verify speaker connections, check head unit output. |
| Bunyi Herot | Gain set too high, improper crossover settings, damaged speakers, poor ground connection. | Reduce gain, adjust crossover, inspect speakers, ensure solid ground connection. |
Spesifikasi
| Ciri | Perincian |
|---|---|
| Nombor Model | LA978 |
| Kuasa Output (Stereo) | 600 Watt x 2 Saluran |
| Output Power (Bridged) | 1200 Watt x 1 Saluran |
| AmpKelas yang lebih hidup | Bekalan Kuasa PWM MOSFET |
| Kawalan Tahap Input | Keuntungan Berubah |
| Rangkaian Crossover | Variable Hi/Lo Electronic |
| Bass Boost | Variable, Remote Capable |
| Impedans Input | Hi/Lo Impedance Input |
| Ciri-ciri Perlindungan | Thermal / Overload / Short Circuit |
| Turn-On Circuitry | Anti-Thump |
| Dimensi (H x W x L) | 2.09" H x 12.17" W x 13.50" L (Product Description) |
| Berat Barang | 10.4 paun |
| Dimensi Produk | 19.29 x 13.9 x 4.53 inches (Packaging/Shipping) |
| ASIN | B000MCELBU |
| UPC | 068888880664 |
Maklumat Waranti
The LEGACY LA978 ampliifier dilengkapi dengan a Waranti Terhad 1 Tahun from the date of purchase. This warranty covers defects in materials and workmanship under normal use. It does not cover damage resulting from improper installation, accident, misuse, abuse, neglect, unauthorized repair, or modification. Please retain your proof of purchase for warranty claims.
Sokongan
For technical assistance, troubleshooting, or warranty inquiries, please contact LEGACY customer support. Refer to the official LEGACY webtapak untuk maklumat hubungan terkini.
Nota: Spesifikasi dan ciri produk tertakluk kepada perubahan tanpa notis.
