Blaupunkt High Power Amplifier Instruction Manual
Models: AMP-1901DPRO, AMP-1904DPRO
Company Information & Compliance
BP Americas Corp.
9590 NW 40th St. Road
Doral, Florida 33178
©2024 BLAUPUNKT. All Rights Reserved.
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
⚠ WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Product Overview
The Blaupunkt High Power Amplifier is designed to enhance your car audio system's performance. This manual provides essential information for system planning, installation, and troubleshooting.
Visual Description: The amplifier unit is a rectangular metal chassis, typically silver or black, with connection terminals and controls on its ends or top. It features the Blaupunkt logo prominently.
System Planning & Requirements
Proper system planning is crucial for maximizing your amplifier's performance and reliability. Consult an authorized Blaupunkt dealer for expert assistance with system design and installation.
System Requirements
Each channel of the amplifier can easily handle 4Ω speaker loads in Stereo Mode. For bridged operation:
- Minimum load impedance is 3Ω for subwoofer use.
- Minimum load impedance is 4Ω for full-range operation.
Operating the amplifier with lower impedances than recommended may cause overheating and engage the thermal protection circuitry, which will shut down the unit. Normal operation will resume once the chassis cools down. Continuous operation under such conditions is not recommended and can reduce the amplifier's lifespan.
Most car audio speakers are 4Ω. Connecting two 4Ω speakers in parallel results in a 2Ω load, which is not recommended for bridged channels.
Wiring Configurations:
- Series Wiring: Connect two 4Ω speakers in series to present an 8Ω load to the amplifier channel. [Diagram: Two 4Ω speakers connected in series.]
- Parallel Wiring: Connect two 4Ω speakers in parallel to present a 2Ω load to the amplifier channel. [Diagram: Two 4Ω speakers connected in parallel.]
- Series/Parallel Wiring: Connect four 4Ω speakers in a series-parallel configuration to present a 4Ω load to the amplifier channel. [Diagram: Four 4Ω speakers connected in series-parallel.]
System Connections
System 1: Connection Subwoofer (Example)
This section illustrates typical connections for a subwoofer setup.
Amplifier Top Panel Description: Features include:
- REMOTE HI-INPUT: For wired remote control.
- INPUT: RCA input jacks (e.g., LCH, RCH).
- Controls: SUB, R GAIN, SONIC, LOW PASS, BASS BOOST.
- Power Input: Terminals for +12V DC, REM (Remote), and GND (Ground).
- Speaker Output: Terminals for LCH, LCH, BRIDGE, REAR RCH, rated for 4~8Ω loads.
Wired Remote Control: Allows for remote adjustment of amplifier settings.
System 2: Bridge Connection Subwoofer (Example)
This section illustrates connections for a bridged subwoofer setup.
Amplifier Rear Panel Description: Features include:
- Power Input: Terminals for +12V DC, REM (Remote), and GND (Ground).
- Speaker Output: Terminals for PWR, +, -, PRT, rated for 4~8Ω loads.
Specifications
AMP-1904DPRO
| Parameter | Value |
|---|---|
| RMS output power 2Ω (Watts) | 170W x 4 CH |
| RMS output power 4Ω (Watts) | 120W x 4 CH |
| THD | <=0.05% |
| Frequency response (-3dB) | 10Hz-30KHz |
| Signal to noise ratio | >=96dB |
| Sensitivity | 250mV-6V |
| Recommended fuse type | 30A x 1 |
| Dimensions | 6.69 x 3.78 x 1.69 in |
AMP-1901DPRO
| Parameter | Value |
|---|---|
| RMS output power 1Ω (Watts) | 1800W x 1 CH |
| RMS output power 2Ω (Watts) | 1300W x 1 CH |
| RMS output power 4Ω (Watts) | 600W x 1 CH |
| THD | <=0.05% |
| Frequency response (±2dB) | 30Hz-250Hz |
| Signal to noise ratio | >=96dB |
| Sensitivity | 250mV-6V |
| Recommended fuse type | 30A x 2 |
| Dimensions | 6.69 x 3.78 x 1.69 in |
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No Output | Low or no remote turn-on input | Check remote turn-on voltage output on amplifier and correct as needed. |
| No Output | Fuse down | Check power wire integrity and reverse polarity; repair as needed and replace fuse. |
| No Output | Power wires not connected | Check power wire connections and repair/replace as needed. |
| No Output | Audio input not connected or no output from source | Check input connections and signal integrity; repair/replace as needed. |
| No Output | Speaker wires not connected | Check speaker wires and repair/replace as needed. |
| Audio cycles on and off | Speakers are blown | Check system with known working speaker and repair/replace speakers as needed. |
| Audio cycles on and off | Thermal protection engages when amplifier heat sink temperature exceeds 90°C | Make sure there is proper ventilation for amplifier and improve ventilation as needed. |
| Distorted output | Loose or poor audio input | Check input connections and repair/replace as needed. |
| Distorted output | Amplifier level sensitivity set too high, exceeding maximum output capability of amplifier | Reset gain. Refer to the turning section of the manual for detailed instructions. |
| Distorted output | Impedance load to amplifier too low | Check speaker impedance load. If below 2Ω stereo or 4Ω mono, rewire speakers to achieve a higher impedance. |
| Distorted output | Shorted speaker wires | Check speaker wire connections and repair/replace as needed. |
| Distorted output | Speaker incorrectly connected to amplifier properly | Check speaker wiring and repair/replace as needed. Refer to the installation section of this manual for detailed instructions. |
| Poor Bass Response | Speaker polarity may be reversed or wired incorrectly, causing cancellation at low frequencies. | Check speaker polarity and repair as needed. |
| Poor Bass Response | Crossover set incorrectly | Reset crossover. For detailed instructions, refer to the multi-cross crossover configuration section of this manual. |
| Battery Fuse Blowing | Impedance load to amplifier is too low | Check speaker impedance load. If below 2Ω stereo or 4Ω mono, rewire speakers to achieve a higher impedance. |
| Battery Fuse Blowing | Short in power wire or incorrect power connection or wire | Check power and ground connections and repair as needed. |
| Battery Fuse Blowing | Fuse used is smaller than recommended | Replace with proper fuse size. |
| Amplifier Fuse Blowing | Too much current being drawn | Check speaker impedance load. If below 2Ω stereo or 4Ω mono, rewire speakers to achieve a higher impedance and replace with recommended fuse size. |
| Amplifier Fuse Blowing | Fuse used is smaller than recommended | Check speaker impedance load. If below 2Ω stereo or 4Ω mono, rewire speakers to achieve a higher impedance and replace with recommended fuse size. |
| Amplifier Fuse Blowing | Short in power wire or incorrect power connection or wire | Check power and ground connections. Repair as needed. |
| Amplifier Fuse Blowing | Fuse used is smaller than recommended | Replace with proper fuse size. |
