1. Pengenalan
The DS18 G4000.5D GEN-X Full-Range Class D 5-Channel Amplifier is designed to deliver powerful and clear audio performance for your car audio system. This manual provides essential information for proper installation, operation, and troubleshooting to ensure optimal performance and longevity of your amplebih hidup.
2. Garis Panduan Keselamatan
- Pemasangan Profesional: It is highly recommended to have this amplifier installed by a qualified professional to prevent damage to the unit or your vehicle.
- Sambungan Kuasa: Ensure all power connections are secure and properly insulated to prevent short circuits and electrical hazards. Use appropriate gauge wiring.
- Pengudaraan: Lekapkan amplifier in a location that allows for adequate airflow to prevent overheating. Avoid covering the heat sinks.
- Pendedahan Air: Jangan dedahkan amplifier to moisture or water.
- Tahap Kelantangan: Pendedahan yang berpanjangan kepada tahap kelantangan yang tinggi boleh menyebabkan kerosakan pendengaran. Laraskan kelantangan secara bertanggungjawab.
3. Kandungan Pakej
- DS18 G4000.5D Amplebih hidup
- Remote Bass Knob with Cable
- RCA Adapter (for high-level input)
- Perkakasan Pemasangan (skru)
- Manual Pengguna (dokumen ini)
4. Ciri-ciri Produk
- Output Kuasa Tinggi: Delivers up to 4000 Watts Max Power for robust audio.
- Versatile Impedance: Stable at 2 Ohm and 4 Ohm loads, with 1 Ohm stability for the subwoofer channel.
- Bridgeable Channels: Allows for flexible speaker configurations.
- Integrated Filters: Features High-Pass Filter (HPF) and Low-Pass Filter (LPF) for precise sound tuning.
- Peningkatan Bass: Adjustable bass boost for enhanced low-frequency response.
- Reka bentuk padat: Small footprint for easy installation in various vehicle spaces.
- Tombol Bass Jauh: Termasuk untuk pelarasan tahap bes yang mudah.
5. Spesifikasi Teknikal
| Ciri | Spesifikasi |
|---|---|
| Jumlah Watt (Puncak) | 4000W |
| RMS Power @ 4 Ohm | 4 x 130W / SUB: 300W |
| RMS Power @ 2 Ohm | 4 x 220W / SUB: 600W |
| RMS Power @ 1 Ohm | SUB: 900W |
| RMS Power @ 4 Ohm (Bridged) | 2 x 420W |
| Respons Kekerapan | 20Hz-20KHz |
| Nisbah Isyarat kepada Bunyi | >90dB |
| Kecekapan @ 4 Ohm | 0.83 |
| DampFaktor Pengambilan | 78 |
| Impedans Input | 22K |
| Pemisahan Saluran | 55dB |
| Herotan Harmonik Jumlah (THD) | 0.0001 |
| Julat Input Aras Rendah | 0.25-6V |
| Input Tahap Tinggi | Tidak |
| Crossover boleh pilih | HPF/LPF |
| Crossover Filter Range (HPF) | 10-250Hz |
| Crossover Filter Range (LPF) | 50-250Hz |
| Julat Boost Bass | 0-12dB |
| Frekuensi Tingkatan Bass | Tetap @ 45Hz |
| Penapis Infrasonik | 10-50Hz |
| Pemilih Fasa | Tidak |
| Bilangan Saluran | 5 |
| Nombor Model Item | G4000.5D |
| Berat Barang | 5.92 paun |
| Dimensi Pakej | 15.16 x 7.48 x 3.31 inci |
| Teknologi Ketersambungan | RCA |
6. Persediaan dan Pemasangan
6.1. Memasang Amplebih hidup
Choose a mounting location that provides adequate ventilation and is protected from moisture. Ensure the amplifier is securely fastened to a solid surface in your vehicle.

Rajah 1: Atas view of the DS18 G4000.5D amplebih hidup.
6.2. Sambungan Pendawaian
Proper wiring is crucial for performance and safety. Refer to the diagram below for power, ground, remote, and speaker connections.

Figure 2: Power input and speaker output terminals. Ensure correct polarity and secure connections.
- Power Input (+12V): Connect to the positive terminal of your vehicle's battery using a fuse-protected power cable of appropriate gauge.
- Tanah (GND): Connect to a clean, unpainted metal surface on the vehicle chassis. Ensure a solid ground connection.
- Alat Kawalan Jauh (REM): Sambungkan ke output hidup jauh unit kepala anda.
- Output pembesar suara: Connect your speakers to the designated terminals. Pay attention to impedance and polarity.
6.3. Sambungan Input
The G4000.5D amplifier uses low-level RCA inputs. If your head unit does not have RCA outputs, you may use a high-level to low-level converter (often included or sold separately) connected to your speaker wires.

Figure 3: Control panel with RCA inputs and adjustment knobs.

Figure 4: RCA adapter for connecting high-level speaker outputs to the amplifier's low-level inputs.
7. Arahan Operasi
7.1. Melaraskan Kawalan
The amplifier features various controls to fine-tune your audio system. Adjust these settings carefully to achieve desired sound quality.

Rajah 5: Jarak dekat view daripada amplifier's control panel, showing gain, crossover, and bass boost settings.
- Keuntungan: Adjust the input sensitivity to match the output of your head unit. Start with the gain at minimum and slowly increase until distortion is heard, then back off slightly.
- HPF (Penapis Lulus Tinggi): Used for full-range speakers to block low frequencies, preventing distortion and improving clarity. Adjustable from 10Hz to 250Hz.
- LPF (Penapis Laluan Rendah): Used for subwoofers to block high frequencies, ensuring only bass notes are reproduced. Adjustable from 50Hz to 250Hz.
- Peningkatan Bass: Increases the output at 45Hz. Adjustable from 0-12dB. Use sparingly to avoid distortion.
- Penapis Infrasonik: Filters out extremely low, inaudible frequencies (10-50Hz) that can waste amplifier power and damage subwoofers.
7.2. Remote Bass Knob
The included remote bass knob allows for convenient adjustment of the subwoofer channel's bass level from your driving position.

Rajah 6: The amplifier shown with the remote bass knob, which connects via a telephone-style cable.
8. Penyelenggaraan
To ensure the longevity and optimal performance of your DS18 G4000.5D amplifier, ikut garis panduan penyelenggaraan ini:
- Pembersihan: Gunakan kain lembut dan kering untuk membersihkan bahagian luar amplifier. Avoid using harsh chemicals or abrasive cleaners.
- Pemeriksaan Sambungan: Periodically inspect all wiring connections (power, ground, remote, and speaker) to ensure they are tight and free from corrosion.
- Pengudaraan: Memastikan bahawa amplifier's ventilation fins remain clear of obstructions to allow for proper heat dissipation.
9. Penyelesaian masalah
Jika anda mengalami masalah dengan anda amplifier, consult the table below for common problems and their solutions.
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Tiada Kuasa / Tiada Bunyi | Blown fuse, loose power/ground/remote wire, amppenguat dalam mod perlindungan. | Check fuses, verify all power connections are secure, ensure remote wire is receiving +12V, check for shorted speaker wires. |
| Bunyi Herot | Set gandaan terlalu tinggi, tetapan crossover yang tidak betul, sambungan ground yang lemah, pembesar suara yang rosak. | Reduce gain, adjust crossover filters, check ground connection, inspect speakers for damage. |
| Amplifier Terlalu Panas | Insufficient ventilation, improper impedance load, prolonged high volume. | Pastikan aliran udara yang mencukupi di sekeliling amplifier, verify speaker impedance matches amplifier's capabilities, reduce volume. |
| Tiada Bas daripada Subwufer | LPF set too low or off, subwoofer channel gain too low, phase incorrect. | Adjust LPF to appropriate frequency, increase subwoofer gain, check subwoofer phase setting. |
10. Video Produk Rasmi
Tonton video produk rasmi untuk visual overview of the DS18 G4000.5D Full Range Amplifier Class D 5-Channel.
Video 1: G4000.5D Full Range Amplifier Class D 5-Channel - Features and overview by DS18.
11. Waranti dan Sokongan
DS18 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 DS18 website. For technical support or customer service inquiries, please contact DS18 directly through their official channels.





