Blaupunkt BPA-HX1200 Monoblock Car Amplifier
User Manual
Introduction
Welcome to the Blaupunkt BPA-HX1200. This powerful 1200W Class D monoblock amplifier is designed to deliver exceptional audio performance for your car's sound system, specifically tailored for subwoofers.
Key Features
- High Power Output: 1200W Max Power
- Efficient Class D Topology
- Monoblock Design for Subwoofer Application
- Variable Low-Pass Filter (LPF)
- Variable Subsonic Filter (SS)
- Adjustable Bass Boost
- Comprehensive Protection Circuits (Thermal, Overload, Short Circuit)
- Remote Bass Control (Optional accessory)
Specifications
| Parameter | Value |
|---|---|
| Power Output (RMS @ 4Ω) | 350W x 1 |
| Power Output (RMS @ 2Ω) | 600W x 1 |
| Power Output (RMS @ 1Ω) | 1000W x 1 |
| Max Power | 1200W x 1 |
| Frequency Response (+/- 1dB) | 10Hz - 250Hz |
| THD (Total Harmonic Distortion) | < 0.1% |
| Input Sensitivity | 0.2V - 6V |
| Low-Pass Filter (LPF) | 30Hz - 250Hz (Variable) |
| Subsonic Filter (SS) | 10Hz - 50Hz (Variable) |
| Bass Boost | 0-12dB @ 45Hz |
| Fuse Rating | 30A x 2 |
| Dimensions (LxWxH) | Approx. 300mm x 200mm x 50mm |
Installation Guide
Proper installation is crucial for performance and safety. Consult a professional if you are unsure.
Connections:
- Power (B+): Connect to the positive (+) terminal of the vehicle battery using a suitable gauge wire and an inline fuse holder (recommended 30A).
- Ground (GND): Connect to a clean, unpainted metal surface on the vehicle chassis using a short, heavy gauge wire.
- Remote (REM): Connect to the head unit's remote turn-on output. This powers the amplifier on/off with the head unit.
- Speaker Output (+/-): Connect to your subwoofer's positive (+) and negative (-) terminals. Ensure correct polarity.
Filter Settings:
LPF (Low-Pass Filter): Adjust to set the upper limit of frequencies sent to the subwoofer. Typically set between 60Hz and 100Hz for subwoofers.
SS (Subsonic Filter): Use to eliminate very low frequencies that can cause distortion and damage to the subwoofer. Set slightly below the desired bass response, e.g., 25Hz-35Hz.
Bass Boost: Use sparingly to add emphasis to low frequencies. Excessive boost can lead to distortion.
Safety Precautions
- ⚠️ Ensure all connections are secure and correct before powering on.
- ⚠️ Do not operate the amplifier if any wires are damaged or connections are loose.
- ⚠️ Protect the amplifier from moisture and extreme temperatures.
- ⚠️ Never bypass the fuse.
- ⚙️ Internal protection circuits will shut down the amplifier if it overheats or if there is a short circuit. Allow it to cool down before restarting.
Troubleshooting
- No Sound: Check power, ground, and remote connections. Ensure head unit is on and volume is up. Verify fuse integrity.
- Distortion: Reduce gain or bass boost. Check speaker impedance compatibility.
- Amplifier Shuts Off: Overheating (ensure ventilation) or overload (check speaker impedance).
