Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Cerwin-Vega B52 Stealth Bomber Series 2-Channel Class D Full Range Amplifier. Please read this manual thoroughly before installation and use to ensure proper function and safety.
Product Overview
The Cerwin-Vega Mobile Stealth Bomber Class D Amp (Model B52) is a compact, high-efficiency 2-channel amplifier designed for car audio systems. It delivers 500 Watts of power and features advanced protection circuits to ensure reliable performance under various conditions.
Key Features
- 2-Channel Power: Delivers 250W RMS @ 2Ω and 150W RMS @ 4Ω per channel, with 500W RMS bridged for superior sound clarity and impact.
- Class D Efficiency: Features a high-efficiency Class D IR chipset and Direct-FET power MOSFET output, delivering precise and clean power.
- Compact, Durable Design: Ultra-compact aluminum alloy chassis offers optimal heat dissipation and robust protection in a sleek, space-saving form factor.
- Versatile Sound Control: Switchable 12dB HP/FLAT/LP crossovers, variable low-pass (40Hz-400Hz), and subsonic filter (10Hz-55Hz) for complete sound customization.
- VEGA Bass Boost: Enhance your system’s low-end frequencies with dynamic bass response for deep, rich sound.
- Remote Turn-On Configurator: Simplifies installation and integration with REM/DC/VOX options for seamless operation.
- Smart Protection: Features advanced rollback power/thermal protection to ensure your system runs smoothly even under heavy load.
- Water-Resistant Coating: Conformal PCB board protection shields the amplifier from moisture and environmental damage.
Product Components and Controls
Familiarize yourself with the amplifier's layout and connections.
This image displays the rear panel of the B52 amplifier, featuring the speaker output terminals (left and right channels, with bridging option) and the power input terminals (+12V, Remote, Ground).
This image shows the front panel of the B52 amplifier, including the input terminals (GND, R, L), turn-on mode selector (REM, DC, VOX), sensitivity adjustment, and crossover controls (HP, FLAT, LP, and frequency adjustment).
A top-down view of the Cerwin-Vega B52 amplifier, highlighting its compact design and branding.
Installation and Setup
Safety Precautions
- Disconnect the vehicle's negative battery terminal before installation.
- Ensure proper grounding to the vehicle chassis.
- Use appropriate gauge wiring for power, ground, and speaker connections.
- Mount the amplifier in a location that allows for adequate ventilation and is protected from moisture.
Wiring Connections
- Power Connection: Connect the +12V terminal to the vehicle's positive battery terminal via an inline fuse (not included).
- Ground Connection: Connect the GND terminal to a clean, unpainted metal surface on the vehicle chassis.
- Remote Turn-On: Connect the REM terminal to the remote output of your head unit. Alternatively, use DC offset or VOX sensing if your head unit lacks a remote output.
- Speaker Output: Connect your speakers to the SPEAKER OUTPUT terminals. Observe correct polarity (+ to + and - to -). For bridged operation, refer to the diagram on the amplifier.
- Input Connection: Connect the audio signal from your head unit to the INPUT terminals (R and L). The amplifier supports speaker-level inputs.
Operation
Turn-On Mode Selection
The B52 amplifier offers three turn-on modes:
- REM (Remote): Activates the amplifier when a 12V signal is received at the REM terminal.
- DC (DC Offset): Activates the amplifier by detecting a DC offset in the speaker-level input signal.
- VOX (Voltage Operated Switch): Activates the amplifier by detecting an audio signal at the speaker-level input.
Sensitivity (Gain) Adjustment
The SENS control adjusts the input sensitivity of the amplifier. Start with the control at minimum and slowly increase it until the desired volume is achieved without distortion.
Crossover Settings
The X-OVER section allows you to filter frequencies:
- HP (High Pass): Allows frequencies above the set point to pass. Useful for tweeters or mid-range speakers.
- FLAT: Bypasses the crossover, allowing all frequencies to pass.
- LP (Low Pass): Allows frequencies below the set point to pass. Useful for subwoofers.
Use the FREQ knob to adjust the crossover frequency (40Hz-400Hz).
Subsonic Filter
The subsonic filter (10Hz-55Hz) removes extremely low frequencies that are inaudible and can cause damage to speakers, especially subwoofers.
VEGA Bass Boost
This feature enhances low-end frequencies. Use sparingly to avoid distortion.
Maintenance
- Keep the amplifier clean and free from dust and debris.
- Ensure adequate airflow around the amplifier to prevent overheating.
- Periodically check all wiring connections for tightness and corrosion.
- Do not expose the amplifier to excessive moisture or direct sunlight.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No Power | Blown fuse, loose power/ground connection, faulty remote wire. | Check inline fuse, verify all power and ground connections, test remote wire for 12V. |
| No Sound | Loose input/output connections, incorrect gain setting, incorrect crossover setting, speaker issues. | Check RCA/speaker-level inputs, speaker wires, adjust gain, verify crossover mode (HP/LP/FLAT). |
| Distorted Sound | Gain set too high, poor ground connection, speaker impedance mismatch, damaged speakers. | Reduce gain, ensure solid ground, check speaker impedance, inspect speakers for damage. |
| Amplifier Overheats | Insufficient ventilation, impedance too low, prolonged high volume. | Relocate amplifier for better airflow, ensure speaker impedance matches amplifier's rating, reduce volume. |
| Amplifier Shuts Off | Overheating, short circuit in speaker wiring, low voltage. | Check for short circuits, ensure proper ventilation, verify vehicle's electrical system. |
Specifications
| Feature | Detail |
|---|---|
| Model | B52 |
| Channels | 2 |
| Output Power | 250W RMS x 2 @ 2Ω, 150W RMS x 2 @ 4Ω, 500W RMS x 1 @ 4Ω Bridged |
| Dimensions (L x W x H) | 7.7 x 4.02 x 1.4 inches |
| Item Weight | 2.46 pounds |
| Voltage | 10 Volts (Minimum), 14 Volts (DC) (Maximum) |
| Material | Aluminum |
| Mounting Type | Surface Mount |
| Crossover | Switchable 12dB HP/FLAT/LP |
| Low-Pass Filter | 40Hz-400Hz |
| Subsonic Filter | 10Hz-55Hz |
| Turn-On Modes | REM/DC/VOX |
Warranty and Support
Manufacturer's Warranty
This Cerwin-Vega B52 amplifier is covered by a 1-Year Manufacturer Warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use. Please retain your proof of purchase for warranty claims.
Customer Support
For technical assistance, troubleshooting, or warranty inquiries, please contact Cerwin-Vega customer support. Refer to the official Cerwin-Vega website for current contact information.
