Deaf Bonce Apocalypse ATOM-900.2 PRO

1. Introduction

Thank you for choosing the Deaf Bonce Apocalypse ATOM-900.2 PRO 2-Channel Class D Amplifier. This amplifier is engineered to deliver high-fidelity audio performance and robust power for your car audio system. This manual provides essential information for proper installation, operation, and maintenance to ensure optimal performance and longevity of your amplifier.

Please read this manual thoroughly before attempting installation or operation. Keep this manual for future reference.

2. Safety Information

Improper installation or use can lead to serious injury, damage to the amplifier, or damage to your vehicle. Always follow these safety guidelines:

• Disconnect the vehicle's negative battery terminal before starting any installation work.
• Ensure all wiring is properly routed and secured to prevent pinching or damage.
• Use appropriate gauge power and ground wires as specified in the installation section.
• Install the amplifier in a location that allows for adequate ventilation to prevent overheating.
• Avoid installing the amplifier in areas exposed to moisture or direct sunlight.
• Do not attempt to repair or modify the amplifier yourself. Refer all servicing to qualified personnel.
• Wear appropriate safety gear, including eye protection, during installation.

3. Package Contents

Verify that all items are present in the package:

• (1) Deaf Bonce ATOM-900.2 PRO Amplifier
• User Manual (this document)
• Mounting Hardware (screws)

Image: Retail packaging for the Deaf Bonce ATOM-900.2 PRO amplifier, showing the product box.

4. Product Overview and Features

The Apocalypse ATOM-900.2 PRO is a high-power 2-channel Class D amplifier designed for demanding car audio applications. Its compact design and advanced features ensure powerful and clear sound reproduction.

Key Features:

• High-Power Output: Delivers up to 900W RMS per channel at 1 Ohm.
• Bridgeable Configuration: Allows for a single powerful output of up to 1800W at 2 Ohms for subwoofers.
• Versatile Frequency Control: Equipped with adjustable Low Pass Filter (LPF) and High Pass Filter (HPF) for precise sound tuning.
• Efficient Class D Technology: Ensures high power output with minimal heat generation and power consumption.
• Compact and Durable Design: Engineered for longevity and ease of installation in various vehicle types.

Image: Angled view of the Deaf Bonce ATOM-900.2 PRO amplifier, showcasing its compact design and heat sink fins.

5. Setup and Installation

Proper installation is crucial for the performance and safety of your amplifier. If you are unsure about any part of the installation process, consult a professional installer.

5.1 Mounting the Amplifier

Choose a mounting location that is dry, well-ventilated, and protected from direct sunlight or excessive heat. Ensure there is sufficient space around the amplifier for air circulation. Secure the amplifier firmly using the provided mounting screws.

Image: Top-down angled view of the Deaf Bonce ATOM-900.2 PRO amplifier, showing its overall dimensions and mounting tabs.

5.2 Wiring Connections

Before making any connections, disconnect the negative terminal of your vehicle's battery.

• Power (B+ / +12V): Connect a high-quality 4-gauge power cable directly from the positive terminal of the vehicle's battery to the +12V terminal on the amplifier. Install an appropriate fuse (not included) within 18 inches of the battery.
• Ground (GND): Connect a 4-gauge ground cable from the GND terminal on the amplifier to a clean, unpainted metal surface of the vehicle chassis. Ensure a solid, low-resistance connection.
• Remote (REM): Connect a remote turn-on wire from your head unit's remote output to the REM terminal on the amplifier. This wire turns the amplifier on and off with your head unit.
• Speaker Output: Connect your speakers to the CH1+ / CH1- and CH2+ / CH2- terminals. Ensure correct polarity. For bridged operation, refer to the diagram below. The minimum permissible load on each channel is 1 Ohm, and 2 Ohm in a bridged connection.
• Input (RCA): Connect RCA cables from your head unit's pre-out to the INPUT RCA jacks on the amplifier.
• High-Input: If your head unit does not have RCA outputs, use the HI-INPUT connection.

Image: Detailed view of the input and output terminals on the Deaf Bonce ATOM-900.2 PRO amplifier, showing power, ground, remote, speaker outputs, RCA inputs, and high-level input connections.

5.3 Initial Settings

After all connections are made, reconnect the negative battery terminal. Before playing audio, set the amplifier controls to their initial positions:

• GAIN: Set to minimum (fully counter-clockwise).
• FREQ (LPF/HPF): Set to the desired crossover frequency based on your speaker type. For full-range speakers, you might use HPF. For subwoofers, use LPF.
• X-OVER: Select LPF (Low Pass Filter), FULL (Full Range), or HPF (High Pass Filter) based on your system configuration.
• BASS BOOST: Set to 0dB (minimum).

Image: Close-up view of the control panel on the Deaf Bonce ATOM-900.2 PRO amplifier, showing the GAIN, FREQ, X-OVER, and BASS BOOST knobs, along with input options.

6. Operating the Amplifier

Once installed, you can fine-tune the amplifier for optimal sound quality.

6.1 Gain Adjustment

The GAIN control matches the amplifier's input sensitivity to the output level of your head unit. To set the gain:

1. Turn the amplifier gain to minimum.
2. Set your head unit volume to about 75-80% of its maximum.
3. Play a dynamic piece of music.
4. Slowly increase the amplifier gain until you hear distortion, then back off slightly until the sound is clear.

Note: The gain control is not a volume knob. Setting it too high can cause distortion and damage to your speakers or amplifier.

6.2 Crossover Settings (LPF/HPF)

The crossover filters allow you to direct specific frequency ranges to your speakers or subwoofers.

• LPF (Low Pass Filter): Allows frequencies below the set point to pass through. Typically used for subwoofers (e.g., 50-80 Hz).
• HPF (High Pass Filter): Allows frequencies above the set point to pass through. Typically used for full-range speakers or component sets (e.g., 80-120 Hz).
• FULL: Bypasses the crossover, allowing the full frequency range to pass.

Adjust the FREQ knob to select the desired cutoff frequency for your chosen filter.

6.3 Bass Boost

The BASS BOOST control provides an increase in output at a specific low frequency. Use this feature sparingly and with caution, as excessive bass boost can lead to distortion and potential damage to your speakers or amplifier. Start at 0dB and increase gradually if desired.

7. Maintenance

The Deaf Bonce Apocalypse ATOM-900.2 PRO amplifier requires minimal maintenance to ensure long-term performance.

• Cleaning: Periodically wipe the amplifier's exterior with a soft, dry cloth to remove dust and dirt. Do not use harsh chemicals or abrasive cleaners.
• Ventilation: Ensure that the amplifier's cooling fins are free from obstructions to allow for proper heat dissipation.
• Connections: Occasionally check all power, ground, remote, and speaker connections to ensure they are secure and free from corrosion.

8. Troubleshooting

If you experience problems with your amplifier, refer to the following troubleshooting guide. If the issue persists, contact customer support.

8.1 No Power / Amplifier Not Turning On

• Check the in-line fuse near the battery. Replace if blown.
• Verify that the +12V, GND, and REM connections are secure and have proper voltage.
• Ensure the remote wire is receiving +12V from the head unit when it is on.
• Check the vehicle's battery voltage.

8.2 No Sound Output

• Confirm the amplifier is powered on (power indicator light should be illuminated).
• Check RCA input connections from the head unit to the amplifier.
• Verify speaker wire connections at both the amplifier and the speakers.
• Ensure the head unit is providing an audio signal.
• Check the GAIN setting; it might be too low.

8.3 Distorted Sound

• Reduce the GAIN setting on the amplifier.
• Lower the volume on your head unit.
• Check speaker impedance; ensure it matches the amplifier's capabilities (minimum 1 Ohm per channel, 2 Ohm bridged).
• Verify that speaker wires are not shorted or touching the vehicle chassis.
• Adjust crossover settings (LPF/HPF) to ensure speakers are playing within their optimal frequency range.
• Reduce BASS BOOST if it is set too high.

8.4 Amplifier Overheating

• Ensure adequate ventilation around the amplifier. Clear any obstructions.
• Check speaker impedance; running below the minimum recommended impedance can cause overheating.
• Reduce the GAIN setting.
• Verify proper ground connection.

9. Specifications

Technical specifications for the Deaf Bonce Apocalypse ATOM-900.2 PRO amplifier:

10. Warranty Information

This Deaf Bonce Apocalypse ATOM-900.2 PRO amplifier is covered by a manufacturer's warranty. Please refer to the warranty card included with your product or visit the official Deaf Bonce website for detailed warranty terms and conditions. Keep your proof of purchase for any warranty claims.

11. Support

For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact your authorized Deaf Bonce dealer or visit the official Deaf Bonce website for support resources and contact information.

Deaf Bonce Official Website: Visit the Deaf Bonce Store on Amazon