Blaupunkt EMA 1300
1 Channel Power Mono Block
Operating and Installation Instruction
System Planning
Proper system planning is the best way to maximize your amplifier performance. By planning your installation carefully, you can avoid situations where the performance or reliability of your system is compromised. Your authorized dealer has been trained to maximize your system's sonic potential. Your dealer is a valuable resource in helping you with your system design and installation.
Speaker Requirements
Each channel of your amplifier can easily drive 4-ohm speaker loads when used in stereo mode. When a channel-pair is bridged, the recommended minimum load impedance is 3 ohms for subwoofer use and 4 ohms for full-range operation. Although operation with lower impedances is not likely to cause immediate damage to the internal circuitry, the unit will most likely overheat, causing the thermal protection circuitry to shut down the amplifier. When the chassis cools down, normal operation will resume. Continuing to operate the amplifier under these conditions is not recommended and will reduce its life expectancy.
Most speakers designed for car audio operation are 4-ohm impedance. Connecting two such speakers in parallel will result in a 2-ohm nominal impedance, which is not recommended for use with bridged channels of your amplifier.
Speaker Wiring Diagrams:
- Series Wiring: Illustrates connecting two 4-ohm speakers in series, resulting in an 8-ohm load.
- Parallel Wiring: Illustrates connecting two 4-ohm speakers in parallel, resulting in a 2-ohm load.
- Series/Parallel Wiring: Shows a configuration for multiple speakers.
Troubleshooting
Common Issues and Solutions
| Symptom | Possible Cause | Action to Take |
|---|---|---|
| Distorted output (cont'd) | Speakers are blown | Check system with known working speaker and repair or replace as needed. |
| Speakers wired with wrong polarity causing cancellation at low frequencies | Check speaker polarity and repair as needed. | |
| Crossover set incorrectly | Reset crossover referring to the multi-cross crossover configuration section of this manual for detailed instructions. | |
| Poor bass response | Impedance load to amplifier too low | Check speaker impedance load; if below 2 ohms stereo or 4 ohms mono, rewire speakers to achieve a higher impedance. |
| Short in power wire or incorrect power connections | Check power and ground connections and repair as needed. | |
| Fuse used is smaller than recommended | Replace with proper fuse size. | |
| Too much current being drawn | Check speaker impedance load; if below 2 ohms stereo or 4 ohms mono, rewire speaker to achieve a higher impedance and replace with recommended fuse size. | |
| Amplifier fuse blowing | Short in power wire or incorrect connections | Check power and ground connections and repair as needed. |
| Too much current being drawn | Check speaker impedance load; if below 2 ohms stereo or 4 ohms mono, rewire speakers to achieve a higher impedance and replace with recommended fuse size. | |
| Fuse used is smaller than recommended | Check power and ground connections and repair as needed. Replace with proper fuse size. |
| Symptom | Possible Cause | Action to Take |
|---|---|---|
| No output | Low or no remote turn-on input | Check remote turn-on voltage output at amplifier and correct as needed. |
| Fuse blown | Check power wire integrity and reversed polarity, repair as needed and replace fuse. | |
| Power wires not connected | Check power wire and ground connections and repair or replace as needed. | |
| Audio input not connected or no output from source | Check input connections and signal integrity, repair or replace as needed. | |
| Speaker wires not connected | Check speaker wires and repair or replace as needed. | |
| Audio cycles on and off | Speaker are blown | Check system with known working speaker and repair or replace speakers as needed. |
| Thermal protection engages when amplifier heatsink 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 or replace as needed. |
| Amplifier level sensitivity set too high; exceeding maximum output capability of amplifier | Reset gain referring to the turning section of the manual for detailed instructions. | |
| Impedance load to amplifier too low | Check speaker impedance load; if below 2 ohms stereo or 4 ohms mono, rewire speakers to achieve a higher impedance. | |
| Shorted speaker wires | Check speaker wire connections and repair or replace as needed. | |
| Speaker not connected to amplifier properly | Check speaker wiring and repair or replace as needed. Refer to the installation section of this manual for detailed instructions. |
Power Connection Leads
This section details the power and speaker connection leads for the amplifier.
Notes on the power supply:
- Connect the +12V power input lead only after all other leads have been connected.
- Be sure to connect the ground wire of the unit securely to a metal part of the car. A loose connection may cause a malfunction of the amplifier.
- REMOTE: The unit is turned on by applying +12Volts to this terminal. This terminal does not draw heavy current like the two power terminals, so a thinner connecting wire is acceptable. Standard 18 GUAGE is fine and the standard color is yellow. If the power antenna wire is already in use, you can still splice into it. With this method, the unit will turn on automatically with the radio. Use the power supply lead with a fuse attached whose value is the same as the original fuse.
- Place the fuse in the power supply lead as close as possible to the car battery.
- During full power operation, maximum current will run through the system. Therefore, make sure that the leads to be connected to the +12V and GND terminals of the unit respectively must be larger than 10-Guage (AWG 10).
Connection Diagrams:
- System 1 connection subwoofer: Illustrates connections for a single subwoofer, including controls for GAIN, SUB SONIC, PHASE SHIFT, LPF, BASS BOOST, and terminals for REMOTE, GND, +12V, FUSE, POWER INPUT, and SPEAKER OUTPUT. A wired remote control is also shown.
- System 2 bridged connection subwoofer: Illustrates connections for a bridged subwoofer setup, showing similar controls and terminals.
Specifications
| Model | EMA 1300 |
| RMS output power 4Ω (Watts) | 300W x 1 CH |
| RMS output power 2Ω (Watts) | 500W x 1CH |
| RMS output power 1Ω (Watts) | 800W x 1 CH |
| THD | <0.05% |
| Frequency response (±2db) | 10Hz~300Hz |
| Signal to noise ratio | >96dB |
| Sensitivity | 200mV~6V |
| Recommended fuse type | 25A x 3 |
| Dimensions | 320mm x 200mm x 51.5mm |
