This manual provides safety instructions, installation steps, wiring diagrams, and connection details for the Alpine MRV-F545 and MRV-F345 4‑channel car power amplifiers. It covers proper battery connection, fuse requirements, cable sizing, and grounding to ensure reliable operation and avoid damage.
The document also lists the technical specifications such as power output, frequency response, signal‑to‑noise ratio, dimensions, and weight for both models, and includes guidance on speaker wiring and optional accessories. This manual is written in Chinese.
| Power output (4 Ω, RMS per channel) | 125 W (MRV-F545) / 75 W (MRV-F345) |
|---|---|
| Bridge mode power (4 Ω) | 125 W ×2 + 500 W ×1 (MRV-F545) / 75 W ×2 + 300 W ×1 (MRV-F345) |
| Frequency response | 10 Hz – 50 kHz (+0 / –1 dB) |
| Signal‑to‑noise ratio | 93 dB (CEA‑2006) |
| Input sensitivity | 200 mV – 4.0 V |
| Input impedance | >10 kΩ |
| Speaker impedance | 4 Ω or 2 Ω (stereo), 4 Ω (bridge) |
| Power supply requirement | 11 V – 16 V DC, negative ground |
| Dimensions (W × H × D) | 420 mm × 228 mm × 60 mm (MRV-F545); 330 mm × 228 mm × 60 mm (MRV-F345) |
| Weight | 5.6 kg (MRV-F545); 4.2 kg (MRV-F345) |
Use AWG 4 to AWG 8 wire for battery and ground connections.
No. Installation should avoid high humidity or dirty locations to prevent damage.