Deaf Bonce Apocalypse DB-SA252 D1 12-inch Subwoofer Instruction Manual

1. Introduction

This manual provides essential information for the proper installation, operation, and maintenance of your Deaf Bonce Apocalypse DB-SA252 D1 12-inch Subwoofer. Please read this manual thoroughly before attempting to install or operate the subwoofer to ensure optimal performance and safety. This subwoofer is designed for high-performance audio systems, delivering powerful bass reproduction.

Figure 1: Front view of the Deaf Bonce Apocalypse DB-SA252 D1 12-inch Subwoofer.

2. Safety Information

• Always disconnect the vehicle's battery before performing any electrical work.
• Ensure proper wiring and connections to prevent damage to the subwoofer, amplifier, or vehicle's electrical system.
• Avoid exposing the subwoofer to moisture or extreme temperatures.
• Do not operate the subwoofer beyond its specified power handling limits (RMS/MAX) to prevent damage.
• Securely mount the subwoofer to prevent movement during vehicle operation.

3. Package Contents

Verify that all items are present in the package:

• 1x Deaf Bonce Apocalypse DB-SA252 D1 12-inch 2000 Watt Dual 1 Ohm Subwoofer

4. Installation and Setup

4.1 Mounting Considerations

Proper mounting is crucial for both performance and safety. Ensure the subwoofer is securely fastened within its enclosure and the enclosure is stable within the vehicle. Consider the following dimensions for installation:

• Mounting Depth: 6.6 inches
• Mounting Width: 11 inches
• Overall Height: 8 inches
• Overall Diameter: 12.6 inches

4.2 Wiring

The DB-SA252 D1 features a dual 1 Ohm voice coil. Proper wiring to your amplifier is essential to achieve the desired impedance and prevent damage. Consult your amplifier's manual for compatible impedance loads. Common wiring configurations for dual voice coil subwoofers include:

• Series Wiring: Connect the two 1 Ohm voice coils in series to achieve a 2 Ohm load.
• Parallel Wiring: Connect the two 1 Ohm voice coils in parallel to achieve a 0.5 Ohm load. (Note: Ensure your amplifier is stable at 0.5 Ohm before attempting this configuration.)

Figure 2: Rear view showing the subwoofer's terminals for wiring connections.

4.3 Recommended Enclosure Parameters

For optimal acoustic performance, it is highly recommended to install the subwoofer in a properly designed enclosure. The following table provides recommended parameters for a bass reflex (ported) enclosure for the DB-SA252 D1 model:

Figure 3: Recommended enclosure parameters for various Deaf Bonce subwoofer models, including the DB-SA252 D1/D2.

Based on the provided image, for the DB-SA252 D1/D2 model:

• Recommended Volume: 50 liters / 1.8 ft³
• Port Area: 150 cm² / 23 inch²
• Port Length: 62 cm / 24.4 inch
• Hz Setting (Tuning Frequency): 35 Hz

These parameters are guidelines. Fine-tuning may be required based on your specific vehicle acoustics and personal preferences.

5. Operating Instructions

5.1 Break-in Period

Allow a break-in period of approximately 10-20 hours of normal listening before operating the subwoofer at high volumes. This allows the suspension components to loosen and reach their optimal performance characteristics.

5.2 Power Handling

The subwoofer has an RMS power rating of 1000 Watts and a MAX power rating of 2000 Watts. Ensure your amplifier's output matches these ratings to prevent underpowering or overpowering, both of which can lead to damage.

5.3 Amplifier Settings

Properly adjust your amplifier's gain, crossover, and bass boost settings. Start with low gain and gradually increase it until the desired volume is reached without distortion. Set the low-pass filter (LPF) to prevent high frequencies from reaching the subwoofer, typically between 60-100 Hz, depending on your system's other speakers.

6. Maintenance

Regular maintenance ensures the longevity and performance of your subwoofer:

• Cleaning: Use a soft, dry cloth to clean the cone and surround. Avoid using harsh chemicals or excessive moisture.
• Inspection: Periodically check all wiring connections for tightness and corrosion. Inspect the subwoofer's cone and surround for any signs of damage or wear.
• Environment: Keep the subwoofer in a dry, stable environment, away from direct sunlight and extreme temperature fluctuations.

7. Troubleshooting

If you encounter issues with your subwoofer, refer to the following common problems and solutions:

• No Sound:
  • Check all power, ground, and remote turn-on connections to the amplifier.
  • Verify RCA signal cables are securely connected to both the head unit and amplifier.
  • Ensure the amplifier is powered on (indicator light should be lit).
  • Check the subwoofer's voice coil wiring for proper connection and continuity.
• Distorted Sound:
  • Reduce the amplifier's gain setting.
  • Check for proper crossover settings; high frequencies can cause distortion.
  • Ensure the subwoofer is not over-excursing (moving too far).
  • Inspect the subwoofer cone and surround for physical damage.
• Overheating:
  • Ensure the amplifier is stable at the connected impedance.
  • Verify adequate ventilation for the amplifier and subwoofer.
  • Reduce prolonged high-volume operation.

If problems persist, consult a professional car audio installer or contact Deaf Bonce customer support.

8. Specifications

Detailed technical specifications for the Deaf Bonce Apocalypse DB-SA252 D1 Subwoofer:

9. Warranty and Support

This Deaf Bonce Apocalypse DB-SA252 D1 Subwoofer comes with a Limited Warranty. For specific terms and conditions of the warranty, please refer to the documentation provided with your purchase or visit the official Deaf Bonce website. For technical support, troubleshooting assistance, or warranty claims, please contact Deaf Bonce customer service through their official channels.