1. Introduction
Thank you for choosing the Avatar ABR-460.4 4 Channel Class AB Amplifier. This manual provides essential information for the proper installation, operation, and maintenance of your amplifier. Please read this manual thoroughly before attempting to install or operate the amplifier to ensure optimal performance and safety.
2. Safety Information
Always observe the following safety precautions to prevent injury or damage to the amplifier and other components:
- Disconnect the vehicle's negative battery terminal before beginning any installation.
- Ensure proper ventilation around the amplifier. Do not mount in enclosed spaces without adequate airflow.
- Use appropriate gauge wiring for power, ground, and speaker connections as specified in the installation section.
- Protect all wiring from sharp edges and heat sources.
- Do not expose the amplifier to moisture or extreme temperatures.
- If you are unsure about any part of the installation process, consult a professional car audio installer.
3. Product Overview
The Avatar ABR-460.4 is a 4-channel Class AB amplifier designed to enhance your car audio system with robust and clear sound. It delivers 460 watts of peak power and offers versatile power options for various audio setups.
Key Features:
- Powerful 4-Channel Amplifier: Delivers 460 watts of peak power for robust and clear audio.
- Class AB Design: Offers high-quality sound with minimal distortion and excellent efficiency.
- Versatile Power Options: Capable of delivering 230W x 4 at 2 Ohms, 115W x 4 at 4 Ohms, and 460W x 2 when bridged at 4 Ohms.
- Advanced Filters and Controls: Includes low pass filter (50-250 Hz), high pass filter (120-3000 Hz), and a bass boost option (0/6/12 dB) for precise sound tuning.
- Durable and Compact: Measures 14.9" x 8.6" x 1.9" and weighs 7.15 lbs, designed for easy installation and long-lasting performance.
Package Contents:
- 1 x Avatar ABR-460.4 Amplifier
- User Manual (this document)
- Mounting Hardware (screws, etc. - typically included)
Product Views:
Figure 3.1: Top view of the Avatar ABR-460.4 amplifier, displaying the 'AVATAR' logo, 'ABR-460.4' model designation, and '460W' power rating on its sleek black casing.
Figure 3.2: Rear view of the Avatar ABR-460.4 amplifier, highlighting the power input terminals (+12V, REM, GND), fuse holders, and speaker output terminals for channels 1-4, including bridge mode indicators.
Figure 3.3: Front view of the Avatar ABR-460.4 amplifier, displaying the RCA input jacks and various control knobs for Bass Boost, LPF, HPF, and Gain for both front and rear speaker channels.
4. Setup and Installation
4.1 Before Installation:
- Plan your wiring carefully. Ensure all cables are routed away from moving parts and heat sources.
- Choose a mounting location that provides adequate ventilation and is protected from moisture.
- Ensure the vehicle's battery is disconnected before making any electrical connections.
4.2 Wiring Connections:
Refer to Figure 3.2 for a visual guide to the connection terminals.
- Power Connection (+12V): Connect a 6 AWG power cable from the vehicle's positive battery terminal to the +12V terminal on the amplifier. Install an appropriate fuse (not supplied) within 18 inches of the battery.
- Ground Connection (GND): Connect a 6 AWG ground cable from the GND terminal on the amplifier to a clean, unpainted metal surface on the vehicle's chassis. Ensure a solid, low-resistance connection.
- Remote Turn-On (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.
- RCA Input (INPUT): Connect RCA cables from your head unit's pre-amp outputs to the INPUT jacks on the amplifier.
- Speaker Output (SPEAKER OUTPUT): Connect your speakers to the SPEAKER OUTPUT terminals. Ensure correct polarity (+ to + and - to -). For bridged operation, refer to the markings on the amplifier's terminal block. The minimum permissible load per channel is 2 Ohms, and 4 Ohms in a bridge connection.
4.3 Mounting:
Mount the amplifier securely to a solid surface using the provided mounting hardware. Ensure there is sufficient space around the amplifier for air circulation to prevent overheating.
5. Operation
5.1 Initial Power-Up:
After all connections are made and verified, reconnect the vehicle's negative battery terminal. Turn on your head unit. The amplifier's power indicator light should illuminate, indicating it is receiving power and is operational.
5.2 Adjusting Controls:
Refer to Figure 3.3 for a visual guide to the control knobs.
- GAIN: This control matches the amplifier's input sensitivity to the output level of your head unit. Start with the gain set to minimum and slowly increase it until you achieve a clear, undistorted sound at your desired volume level. Avoid setting the gain too high, as this can lead to distortion.
- LPF (Low Pass Filter): This filter allows frequencies below the set point to pass through to the speakers. It is typically used for subwoofers. The range is 50 - 250 Hz.
- HPF (High Pass Filter): This filter allows frequencies above the set point to pass through to the speakers. It is typically used for full-range speakers or tweeters. The range is 120 - 3000 Hz.
- BASS BOOST: This control provides an adjustable bass boost at 0, 6, or 12 dB. Use this feature sparingly to avoid distortion and potential speaker damage.
- CROSSOVER: This switch selects the mode for the filters (LPF, HPF, or FULL).
6. Maintenance
The Avatar ABR-460.4 amplifier requires minimal maintenance. Keep the amplifier clean and free from dust and debris. Periodically check all wiring connections to ensure they are secure and free from corrosion. Do not use harsh chemicals or abrasive cleaners on the amplifier's surface.
7. Troubleshooting
If you experience issues with your amplifier, refer to the table below for common problems and their solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No Power / Amplifier does not turn on | Blown fuse; Loose power or ground connection; No remote turn-on signal. | Check and replace fuses; Verify all power, ground, and remote connections are secure; Check head unit's remote output. |
| No Sound Output | Loose RCA cables; Speaker wires disconnected; Amplifier in protection mode; Gain set too low. | Ensure RCA cables are securely connected; Check speaker wire connections; Check for short circuits in speaker wiring; Adjust gain setting. |
| Distorted Sound | Gain set too high; Improper crossover settings; Speaker impedance mismatch; Damaged speakers. | Reduce gain setting; Adjust LPF/HPF settings; Verify speaker impedance matches amplifier's capabilities; Inspect speakers for damage. |
| Amplifier Overheats | Insufficient ventilation; Speaker impedance too low; Prolonged high volume use. | Ensure adequate airflow around amplifier; Verify speaker impedance; Reduce volume or allow amplifier to cool down. |
8. Technical Specifications
| Specification | Value |
|---|---|
| Model | ABR-460.4 |
| Type | Amplifier Class-AB |
| Number of Channels | 4 |
| Frequency Response | 10 - 20000 Hz |
| 2 Ohm RMS Power (14.4 V) | 230 W x 4 |
| 4 Ohm RMS Power (14.4 V) | 115 W x 4 |
| 4 Ohm RMS Power (Bridge) | 460 W x 2 |
| Minimum Permissible Load per Channel | 2 Ohm |
| Minimum Permissible Load in Bridge Connection | 4 Ohm |
| Input SPL | 0.2 - 6 V |
| Low Pass Filter | 50 - 250 Hz |
| High Pass Filter | 120 - 3000 Hz |
| Crossover Slope | 12 dB/Oct |
| Bass Boost | 0/6/12 dB |
| Damping Factor | ≥ 100 |
| Working Voltage | 9 - 15 V |
| Signal-to-noise Ratio | ≥ 92 dB |
| Input Terminal Connection | 6 AWG |
| Output Terminal Connection | 14 AWG |
| Dimensions (WxLxH) | 14.9" x 8.6" x 1.9" |
| Weight | 7.15 lbs |
9. Warranty and Support
This Avatar ABR-460.4 amplifier is covered by a manufacturer's warranty against defects in materials and workmanship. Please refer to the warranty card included with your product for specific terms and conditions, or visit the official Avatar website for detailed warranty information.
For technical support, troubleshooting assistance, or warranty claims, please contact Avatar customer service through their official website or authorized distributors. Keep your purchase receipt as proof of purchase for warranty service.
