1. Introduction
Thank you for choosing the Planet Audio AP1000D Class D Monoblock Power Amplifier. This 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 maintenance of your amplifier. Please read it thoroughly before attempting installation or use.
The AP1000D is a 1000-watt maximum power, 1-Ohm stable Class D monoblock power amplifier, engineered for robust bass reproduction.
2. Safety Information
Please observe the following safety guidelines to prevent injury and damage to the amplifier or vehicle.
- Professional Installation Recommended: Installation of car audio components requires experience with electrical wiring and audio system setup. If you are unsure about any part of the installation, consult a qualified professional.
- Power Connections: Always disconnect the vehicle's negative battery terminal before starting any electrical work. Ensure all power connections are secure and properly fused to prevent short circuits and fire hazards.
- Mounting: Mount the amplifier securely to prevent it from coming loose in the event of a sudden stop or collision. Ensure adequate ventilation around the amplifier to prevent overheating.
- Hearing Protection: Prolonged exposure to high sound pressure levels can cause permanent hearing loss. Use caution when adjusting volume levels.
- Avoid Moisture: Do not expose the amplifier to moisture or water. This can cause electrical shock or damage to the unit.
3. Package Contents
Upon opening the package, ensure all items are present and in good condition:
- Planet Audio AP1000D Monoblock Power Amplifier
- Remote Subwoofer Level Control
- Data Link Cable (for strapping two amplifiers)
- Mounting Hardware (screws, washers)
- User Manual (this document)
4. Features
The Planet Audio AP1000D amplifier incorporates advanced features for optimal performance:
- Class D Monoblock Design: Efficient power delivery for subwoofer applications.
- High Power Output:
- Maximum Power (1 Ohm): 1000 Watts x 1
- RMS Power (1 Ohm): 650 Watts x 1
- RMS Power (2 Ohms): 450 Watts x 1
- RMS Power (4 Ohms): 250 Watts x 1
- Signal-to-Noise Ratio: 100 dB for clear audio reproduction.
- Frequency Response: 20-250 Hz, optimized for bass frequencies.
- Switchable Input Sensitivity: Selectable between 100mV-2V or 2V-8V to match various head unit outputs.
- Switchable Phase Shift: 0-180° adjustment to optimize bass alignment with other speakers.
- Variable Bass Boost: Adjustable from 0 to +18dB for enhanced low-frequency impact.
- Continuous Variable Low Pass Crossover: Allows precise tuning of the frequency range sent to the subwoofer.
- Variable Subsonic Filter: Adjustable from 15-40 Hz to protect subwoofers from damaging ultra-low frequencies.
- Low Level Inputs and Outputs: For signal connection and daisy-chaining multiple amplifiers.
- Power and Protection LEDs: Indicators for operational status and fault conditions.
- Heavy-Duty Set Screw Style Terminals: Ensure secure and reliable connections.
- Chrome Plated Connections: For improved conductivity and corrosion resistance.
- Illuminated Logo: Aesthetic branding feature.
- Strapping Capability: Connect two AP1000D amplifiers together for double the power output (2 Ohm stable when strapped).
5. Setup and Installation
Proper installation is crucial for optimal performance and safety. Refer to your vehicle's service manual for specific wiring diagrams if needed.
5.1 Mounting the Amplifier
Choose a mounting location that provides adequate ventilation and protection from moisture. Common locations include the trunk, under a seat, or behind a rear seat. Ensure the amplifier is securely fastened to a solid surface using the provided mounting hardware.
Figure 1: Planet Audio Monoblock Amplifier. This image displays the overall design of a Planet Audio monoblock amplifier, featuring the brand logo and connection terminals on the side.
5.2 Wiring Connections
All wiring should be routed carefully to avoid pinching, chafing, or interference with vehicle components. Use appropriate gauge wire for power and speaker connections.
5.2.1 Power Connections
- Ground (GND): Connect the amplifier's GND terminal to a clean, unpainted metal surface on the vehicle chassis. Ensure a solid electrical connection.
- Remote Turn-On (REM): Connect the REM terminal to the remote output wire from your head unit. This wire turns the amplifier on and off with your stereo.
- Power (+12V): Connect the +12V terminal directly to the positive terminal of your vehicle's battery. Install an appropriate fuse holder (not included) within 18 inches (45 cm) of the battery.
5.2.2 Speaker Connections
Connect your subwoofer(s) to the amplifier's speaker terminals. The AP1000D is a monoblock amplifier, designed for a single channel output. Ensure the total impedance of your subwoofer(s) is 1 Ohm or higher for stable operation.
5.2.3 Input Connections (RCA)
Connect the RCA output cables from your head unit (or line output converter) to the amplifier's Low Level Inputs. Use high-quality RCA cables to minimize noise.
5.2.4 Remote Subwoofer Level Control
Connect the included remote subwoofer level control to the designated port on the amplifier. Mount the control in an accessible location for easy adjustment from the driver's seat.
5.2.5 Strapping Two Amplifiers (Optional)
For increased power, two AP1000D amplifiers can be strapped together. Refer to the specific wiring diagram provided with the data link cable for this advanced configuration. When strapped, the combined impedance should be 2 Ohms stable.
6. Operating Instructions
After installation, carefully adjust the amplifier settings for optimal sound quality.
6.1 Input Sensitivity (GAIN)
This control matches the amplifier's input to the output level of your head unit. Start with the gain control at its minimum setting. Play a familiar piece of music at a moderate volume on your head unit. Slowly increase the amplifier's gain until you hear slight distortion, then back it off slightly. Avoid setting the gain too high, as this can lead to distorted sound and potential damage to speakers.
6.2 Low Pass Crossover (LPF)
The LPF control filters out high frequencies, allowing only low frequencies to pass to the subwoofer. Adjust this setting to blend the subwoofer's output seamlessly with your main speakers. A common starting point is between 80Hz and 120Hz.
6.3 Subsonic Filter
This filter removes extremely low frequencies that are below the audible range and can cause subwoofers to over-excurt without producing useful sound. Adjust this to protect your subwoofer, typically set slightly below your enclosure's tuning frequency or around 20-30Hz.
6.4 Bass Boost
The bass boost control provides an increase in output at a specific low frequency. Use this sparingly and adjust carefully to avoid distortion. Start at 0dB and increase gradually if desired.
6.5 Phase Shift
The phase shift control (0-180°) helps to align the subwoofer's output with the main speakers. Experiment with both settings to find the one that produces the most impactful and coherent bass response.
6.6 Remote Subwoofer Level Control
This knob allows you to conveniently adjust the subwoofer's output level from your listening position without accessing the amplifier directly.
7. Maintenance
The Planet Audio AP1000D amplifier requires minimal maintenance to ensure long-term performance.
- Cleaning: Periodically wipe the amplifier's exterior with a soft, dry cloth. Do not use harsh chemicals or abrasive cleaners.
- Ventilation: Ensure that the amplifier's cooling fins are free from dust and debris to maintain proper heat dissipation.
- Connections: Occasionally check all power, ground, and speaker connections to ensure they remain tight and secure. Loose connections can cause performance issues or damage.
8. Troubleshooting
If you experience problems with your amplifier, consult the following troubleshooting guide before contacting support.
| Symptom | Possible Cause | Solution |
|---|---|---|
| No Power (Power LED Off) | Blown fuse Poor power/ground connection No remote turn-on signal | Check and replace fuse Verify all power and ground connections Check remote wire connection to head unit |
| Protection Mode (Protection LED On) | Overheating Speaker short circuit Low impedance load | Ensure adequate ventilation; allow to cool Check speaker wiring for shorts Verify speaker impedance is within specifications |
| No Sound | No input signal Gain set too low Speaker wires disconnected | Check RCA input connections Adjust gain control Verify speaker connections |
| Distorted Sound | Gain set too high Improper crossover settings Damaged speakers | Reduce gain setting Adjust LPF and Subsonic filter Inspect speakers for damage |
9. Specifications
Detailed technical specifications for the Planet Audio AP1000D amplifier:
- Model: AP1000D
- Amplifier Class: Class D
- Channel Configuration: Monoblock (1-Channel)
- Maximum Power Output (1 Ohm): 1000 Watts x 1
- RMS Power Output (1 Ohm): 650 Watts x 1
- RMS Power Output (2 Ohms): 450 Watts x 1
- RMS Power Output (4 Ohms): 250 Watts x 1
- Minimum Stable Impedance: 1 Ohm (2 Ohms when strapped)
- Signal-to-Noise Ratio: 100 dB
- Frequency Response: 20 Hz - 250 Hz
- Low Pass Filter (LPF): Variable
- Subsonic Filter: Variable (15 Hz - 40 Hz)
- Bass Boost: Variable (0 to +18 dB)
- Phase Shift: Switchable (0° or 180°)
- Input Sensitivity: Switchable (100mV-2V or 2V-8V)
- Dimensions (H x W x L): 2-5/16 inches x 10-5/8 inches x 13-9/16 inches (6.35 cm x 27.31 cm x 34.44 cm)
- Weight: Approximately 3.79 kg (8.35 lbs)
- Manufacturer: Planet Audio
10. Warranty and Support
Planet Audio products are designed for reliability and performance. For specific warranty information, please refer to the warranty card included with your product or visit the official Planet Audio website. If you encounter issues not covered in the troubleshooting section, or require further assistance, please contact Planet Audio customer support.
Contact Information: Please refer to the Planet Audio official website or your purchase documentation for the most current customer support contact details.
