1. Introduction
This manual provides essential information for the proper installation, operation, and maintenance of your Pyle PLPW8D 8-inch Car Subwoofer Speaker. Please read these instructions thoroughly before installation and retain this manual for future reference.
2. Product Features
- 800 Watt Power: 400 Watt RMS to 800 Watt peak power for high sound resonance.
- Dual Voice Coil: Dual 4 Ohm impedance, allowing wiring configurations for 2 Ohm or 8 Ohm. Features a 1.5-inch 4-layer voice coil for durability.
- Treated Foam Surround: Constructed with specially treated foam surround for durability and non-fatiguing suspension.
- Non-Pressed Paper Cone: Clean-cut design with a non-pressed paper cone and black plastic basket.
- 60oz Magnet: Built with a 40 oz. magnet for powerful audio performance.
- High Sensitivity: Sensitivity (SPL) of 89dB for clear audio reproduction.
- Compact Mounting: 3.7-inch mounting depth, suitable for most car, boat, or RV audio systems. Overall diameter is 8.2 inches.
3. Package Contents
- Pyle PLPW8D 8-inch Car Subwoofer Speaker
- Necessary cables
- Installation template
- Instruction manual
4. Setup and Installation
Proper installation is crucial for optimal performance and longevity of your subwoofer. Ensure all connections are secure and correctly polarized.
4.1 Mounting the Subwoofer
The Pyle PLPW8D features a 3.7-inch mounting depth and an 8.2-inch overall diameter. Use the provided installation template to mark and cut the mounting hole in your enclosure. Secure the subwoofer using appropriate fasteners.

Figure 1: Subwoofer dimensions including 8.2-inch diameter and 3.7-inch mounting depth.

Figure 2: Illustration of the 3.7-inch mounting depth for the Pyle PLPW8D subwoofer.
4.2 Wiring the Dual 4 Ohm Voice Coils
The PLPW8D features dual 4 Ohm voice coils, offering flexibility in wiring configurations to match your amplifier's impedance requirements. You can wire the voice coils in series for an 8 Ohm load or in parallel for a 2 Ohm load.
Series Wiring (8 Ohm Total Impedance)
To achieve an 8 Ohm total impedance, connect the positive terminal of one voice coil to the negative terminal of the other voice coil. Then, connect the remaining free positive terminal to the amplifier's positive output and the remaining free negative terminal to the amplifier's negative output.
Parallel Wiring (2 Ohm Total Impedance)
To achieve a 2 Ohm total impedance, connect the positive terminals of both voice coils together. Then, connect the negative terminals of both voice coils together. Connect the combined positive terminals to the amplifier's positive output and the combined negative terminals to the amplifier's negative output.

Figure 3: Rear view of the Pyle PLPW8D subwoofer showing the dual 4 Ohm impedance terminals.

Figure 4: Close-up of the 1.5-inch 4-layer dual voice coil and treated foam surround.
4.3 Amplifier Connection Guidance
Ensure your amplifier is stable at the impedance load you choose for your subwoofer. Incorrect impedance matching can lead to amplifier overheating or damage to the subwoofer.
Video 1: This video demonstrates general wiring principles for connecting a single voice coil 4 Ohm subwoofer to an amplifier. While the PLPW8D has dual voice coils, the amplifier connection concepts remain similar. Refer to section 4.2 for specific dual voice coil wiring instructions.
5. Operating Instructions
Once installed, adjust your amplifier's gain, crossover, and bass boost settings to achieve the desired sound. Start with low settings and gradually increase them to avoid distortion or damage to your subwoofer and other audio components.
- Gain Control: Adjust to match the output voltage of your head unit.
- Low-Pass Filter (LPF): Set to filter out high frequencies, allowing only bass frequencies to pass through to the subwoofer.
- Subsonic Filter: If available on your amplifier, set to filter out extremely low frequencies below the subwoofer's effective range to prevent damage.
6. Maintenance
To ensure the longevity and performance of your Pyle PLPW8D subwoofer, follow these simple maintenance guidelines:
- Regular Cleaning: Gently wipe the cone and surround with a soft, dry cloth to remove dust and debris. Avoid using harsh chemicals or excessive moisture.
- Inspect Connections: Periodically check all wiring connections to ensure they are secure and free from corrosion. Loose connections can lead to poor performance or damage.
- Avoid Overpowering: Do not continuously operate the subwoofer at maximum volume or with excessive bass boost, as this can cause overheating and damage to the voice coils.
- Proper Enclosure: Ensure the subwoofer is installed in a suitable enclosure that is free from leaks or damage, as this affects sound quality and subwoofer protection.
- Temperature Control: Avoid exposing the subwoofer to extreme temperatures or direct sunlight for prolonged periods, which can degrade materials.
7. Troubleshooting
If you experience issues with your subwoofer, refer to the following common troubleshooting steps:
- No Sound:
- Check all power and ground connections to the amplifier.
- Verify the remote turn-on wire is connected and receiving power.
- Ensure RCA cables are securely connected to both the head unit and amplifier.
- Confirm speaker wires are correctly connected to the subwoofer and amplifier, with correct polarity.
- Check amplifier's protection mode indicator.
- Distorted Sound:
- Reduce amplifier gain settings.
- Check for proper LPF and subsonic filter settings.
- Ensure subwoofer is not over-powered or under-powered by the amplifier.
- Inspect speaker wires for shorts or damage.
- Weak Bass:
- Increase amplifier gain gradually.
- Adjust LPF and bass boost settings.
- Verify subwoofer wiring impedance matches amplifier's optimal load.
- Check for correct phase setting on the amplifier (if available).
8. Specifications
| Model Name | PLPW8D |
| Speaker Type | Subwoofer |
| Subwoofer Diameter | 8 Inches |
| Speaker Maximum Output Power | 800 Watts |
| Impedance | Dual 4 Ohm |
| Voice Coil | 1.5-inch 4-Layer Dual Voice Coil |
| Magnet Weight | 40 oz. |
| Sensitivity (SPL) | 89 dB |
| Mounting Depth | 3.7 Inches |
| Overall Diameter | 8.2 Inches |
| Material | Metal, Plastic |
| Color | Black |
| Connectivity Technology | Wired |
| Product Dimensions | 4.3"D x 8.2"W x 8.2"H |
| Item Weight | 2 Pounds |
9. Warranty and Support
This Pyle PLPW8D subwoofer comes with a one-year limited warranty from the date of purchase. For warranty claims or technical support, please refer to the contact information provided in your purchase documentation or visit the official Pyle website.
10. Important Safety Information
Proposition 65 Warning: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.





