Introduction
Thank you for choosing the Autotek AYA-1100.4 Alloy Series 4-Channel Class AB Amplifier. This amplifier is designed to deliver powerful and clear audio performance for your vehicle's sound system. Its compact design and efficient cooling ensure reliable operation. This manual provides essential information for proper installation, operation, and maintenance of your amplifier.
The Autotek Alloy Series amplifier features built-in electronic crossovers and high-level inputs, allowing for seamless integration with both OEM (factory) audio systems that lack RCA outputs and those that do. Its versatile operation modes include 4-channel stereo, dual stereo bridged, stereo + bridged mono, and dual bridged mono, providing flexibility for various audio setups.
Safety Information
Please read all instructions carefully before installation and use. Failure to follow these instructions may result in damage to the amplifier, vehicle, or personal injury.
- Always disconnect the vehicle's battery before making any electrical connections.
- Ensure proper grounding to prevent electrical hazards.
- Do not expose the amplifier to moisture or extreme temperatures.
- Consult a professional car audio installer if you are unsure about any installation steps.
- Use appropriate gauge wiring for power and speaker connections to prevent overheating.
Package Contents
Verify that all items are present in the package:
- Autotek AYA-1100.4 Amplifier
- User Manual (this document)
- Mounting hardware (screws, etc.)
Product Overview
Setup and Installation
Proper installation is crucial for optimal performance and safety. It is recommended to have this amplifier installed by a qualified professional.
Mounting Location
Choose a mounting location that is dry, well-ventilated, and away from direct sunlight or heat sources. Ensure sufficient space around the amplifier for air circulation. Common locations include under a seat or in the trunk.
Wiring Connections
Refer to Figure 4 for the power and speaker output panel layout.
- Power Connection (+12V): Connect a heavy-gauge power cable (e.g., 8-gauge or 4-gauge depending on total system power) from the vehicle's positive battery terminal to the +12V terminal on the amplifier. Install an inline fuse holder (not supplied) within 18 inches of the battery.
- Ground Connection (GND): Connect a heavy-gauge ground cable of the same size as the power 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.
- Speaker Outputs: Connect your speakers to the appropriate speaker output terminals (CH1, CH2, CH3, CH4). Pay close attention to polarity (+ and -). Refer to the "Operating Modes" section for different wiring configurations (stereo, bridged).
- Input Connections: Refer to Figure 3 for the input and control panel layout.
- RCA Inputs (Low Level): Connect RCA cables from your head unit's pre-amp outputs to the CH1/CH2 and CH3/CH4 RCA inputs on the amplifier.
- High Level Inputs: If your head unit does not have RCA outputs, use the supplied high-level input harness (if included) to connect directly to your head unit's speaker wires. Connect the vehicle's speaker wires to the corresponding high-level input terminals (CH1, CH2, CH3, CH4).
Operating Instructions
Initial Power-Up
After all connections are made, reconnect the vehicle's battery. Turn on your head unit. The "PWR" indicator LED on the amplifier should illuminate, indicating it is receiving power and operating correctly. If the "PRT" (Protection) LED illuminates, there may be a wiring issue or fault; refer to the Troubleshooting section.
Adjusting Controls
Refer to Figure 3 for the input and control panel layout.
- Level (Gain) Control: This control matches the amplifier's input sensitivity to the output level of your head unit. Start with the gain set to minimum (MIN). Play a familiar track at about 75% of your head unit's maximum volume. Slowly increase the amplifier's gain until you hear slight distortion, then back off slightly.
- Filter Control (CH1/CH2 and CH3/CH4):
- HPF (High Pass Filter): Allows frequencies above the set point to pass through. Useful for full-range speakers to prevent low bass distortion. Adjustable from 40Hz to 400Hz.
- FULL: Allows all frequencies to pass through.
- LPF (Low Pass Filter): Allows frequencies below the set point to pass through. Useful for subwoofers. Adjustable from 40Hz to 400Hz. (Note: LPF is only available on CH3/CH4 filter control).
- Bass Boost (CH3/CH4): Provides an adjustable bass boost at 45Hz. Adjustable from 0dB to 12dB. Use sparingly to avoid distortion and speaker damage.
Operating Modes
The Autotek AYA-1100.4 amplifier supports several configurations:
- 4-Channel Stereo: Connect four full-range speakers, one to each channel.
- Dual Bridged Mono: Bridge channels 1&2 for one mono output and channels 3&4 for another mono output. This configuration provides two high-power mono outputs, ideal for driving two subwoofers or high-power mid-bass speakers. Ensure speakers are rated for the bridged impedance (typically 4 ohms minimum).
- Stereo + Bridged Mono: Connect two speakers in stereo to channels 1&2, and bridge channels 3&4 for a single subwoofer.
Note on Bridging:
When bridging channels, connect the speaker's positive (+) terminal to the positive (+) terminal of the first channel (e.g., CH1+) and the speaker's negative (-) terminal to the negative (-) terminal of the second channel (e.g., CH2-). Always ensure the speaker impedance meets the minimum requirements for bridged operation (typically 4 ohms per bridged channel pair).
Maintenance
The Autotek AYA-1100.4 amplifier requires minimal maintenance.
- Cleaning: Periodically wipe the amplifier's exterior with a soft, dry cloth to remove dust. Do not use harsh chemicals or abrasive cleaners.
- Ventilation: Ensure that the amplifier's cooling fins are not obstructed by debris or other objects. Proper airflow is essential for preventing overheating.
- Connections: Occasionally check all wiring connections to ensure they are secure and free from corrosion. Loose connections can lead to poor performance or damage.
Troubleshooting
If you experience issues with your amplifier, consult the following table before seeking professional service.
| Problem | Possible Cause | Solution |
|---|---|---|
| Amplifier does not turn on (PWR LED off) |
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| Protection (PRT) LED is on |
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| No audio output |
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| Distorted audio |
|
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Specifications
| Feature | Specification |
|---|---|
| Model Number | AYA-1100.4 |
| Max Power Output | 1,100 Watts |
| RMS Power (4 Ohms) | 30 Watts x 4 Channels |
| RMS Power (2 Ohms) | 40 Watts x 4 Channels |
| RMS Power (4 Ohms Bridged) | 60 Watts x 2 Channels (Mono) |
| Number of Channels | 4 |
| Dimensions (L x W x H) | 25.4 x 20.3 x 6 cm (10 x 8 x 2.36 inches) |
| Weight | 2.12 kg (4.67 lbs) |
| Color | Silver |
| Manufacturer | Autotek |
| UPC | 806576231509 |
Warranty Information
Autotek products are designed and manufactured to the highest quality standards. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official Autotek website. Keep your purchase receipt as proof of purchase for warranty claims.
Customer Support
If you have any questions or require assistance with your Autotek AYA-1100.4 amplifier, please contact Autotek customer support through their official website or the contact information provided in your product packaging.
For more information, visit: www.autotek.com
