1. Introduction
The Audison SR6.600 is a high-performance 6-channel Class D power amplifier designed for automotive audio systems. With a total power output of 1120W RMS, it delivers robust and clear sound. This amplifier features advanced technologies such as ADT (Audison D-Class) for superior efficiency and Hi-Res certified audio performance. Its compact design and flexible configuration options make it suitable for a wide range of audio setups, from active 3-way front systems to powerful subwoofer applications.
2. Key Features
- High-Current Capability: Delivers high power into challenging loads (1Ω Stereo, 2Ω Bridged for channels 5/6).
- Staggered Power Output: Optimized for 3-way active front systems with higher power for woofers, or 600W bridged power for a subwoofer.
- Flexible Crossover Filter Networks: Supports Active 3-way, Front/Rear/Sub, or six channels of high-passed power.
- ADT (Audison D-Class) Technology: Ensures Hi-Res certified audio performance with superior efficiency in a compact size.
- Compact Design: Extruded aluminum chassis with a fanless convection cooling system.
- Built-in USS (Universal Speakers Simulator): For seamless integration with OEM head units.
- Balanced High-Noise Rejection Inputs: Supports both Speaker-In (for OEM head units) and RCA-In (for aftermarket head units).
- ART (Automatic Remote Turn-On/Off): Automatically turns the amplifier on/off with the OEM head unit (selectable).
- Wide Input Signal Acceptance: Accepts up to 40-volt input signal via Speaker-In.
- Adjustable Bass Boost: Up to 12 dB at 50 Hz for enhanced subwoofer punch.
- Adjustable Lo-Pass and Hi-Pass Filters: 12 dB/Octave, ranging from 50 Hz to 5000 Hz.
- Optional Remote Volume Control: VCR-S2/ARC 01 allows adjustment of OUT 5/6 volume from the dashboard.
3. Setup and Installation
Proper installation is crucial for the performance and longevity of your Audison SR6.600 amplifier. Always ensure the vehicle's battery is disconnected before beginning any wiring.
3.1. Amplifier Overview
Figure 3.1: Top view of the Audison SR6.600 amplifier, showing input and output terminals.
3.2. Power Connections
Connect the amplifier to the vehicle's electrical system. The amplifier operates within a power supply voltage range of 11 to 17 VDC. Ensure proper fusing (2 x 30A) and use appropriate gauge wiring for power and ground connections to prevent voltage drops and ensure stable operation.
3.3. Input Connections
The SR6.600 supports both low-level (RCA-In) and high-level (Speaker-In) inputs. For OEM head units, utilize the Speaker-In connections, which can accept signals up to 40 volts. The built-in USS (Universal Speakers Simulator) ensures compatibility. For aftermarket head units, use the RCA-In connections.
Figure 3.2: Rear view of the Audison SR6.600 amplifier, highlighting input and output terminals.
3.4. Speaker Connections
Connect your speakers to the designated speaker output terminals. Pay close attention to the minimum load impedance requirements:
- Channels 1-4: Minimum 2Ω
- Channels 5-6: Minimum 1Ω
- Bridged (1+2/3+4): Minimum 4Ω
- Bridged (5+6): Minimum 2Ω
Incorrect impedance can lead to amplifier damage or reduced performance.
3.5. Remote Turn-On
The amplifier features ART (Automatic Remote Turn-On/Off) which can automatically power on/off the amplifier when the OEM head unit is turned on/off. This feature can be enabled or disabled as needed. Alternatively, a traditional remote turn-on wire can be used.
4. Operating Instructions
The Audison SR6.600 offers various adjustments to fine-tune your audio system.
4.1. Crossover Settings
The amplifier features flexible crossover filter networks with adjustable Lo-Pass and Hi-Pass filters (12 dB/Octave) ranging from 50 Hz to 5000 Hz. This allows for precise frequency management for different speaker types and system configurations (e.g., 3-way active, front/rear/sub).
Figure 4.1: Top panel of the Audison SR6.600 amplifier, showing control knobs and switches for settings.
4.2. Bass Boost
For enhanced low-frequency response, the Bass Boost feature (50 Hz) can be adjusted up to 12 dB. Use this setting carefully to avoid distortion and speaker damage.
4.3. Operating Modes
The SR6.600 supports multiple operating modes to suit various system designs:
- 6-Channel Mode: Provides independent power to six speakers.
- 5-Channel Mode: Typically used for 4 speakers + 1 bridged subwoofer (Ch5/6 bridged).
- 4-Channel Mode: Can be configured for 2 bridged channels + 2 independent channels, or 2 bridged channels + 1 bridged channel.
- 3-Channel Mode: Often used for 2 bridged channels + 1 bridged subwoofer.
4.4. Remote Volume Control (Optional)
An optional VCR-S2/ARC 01 Remote Volume Control can be connected to adjust the volume level of channels 5/6 (subwoofer output) directly from your dashboard.
5. Maintenance
The Audison SR6.600 is designed for reliable operation with minimal maintenance. Follow these guidelines to ensure its longevity:
- Cleaning: Periodically clean the amplifier's exterior with a soft, dry cloth. Avoid using harsh chemicals or abrasive cleaners.
- Ventilation: Ensure the amplifier's cooling fins are free from dust and debris. Although it features a fanless convection cooling system, proper airflow around the unit is essential to prevent overheating.
- Connections: Occasionally check all power, ground, input, and speaker connections to ensure they are secure and free from corrosion.
6. Troubleshooting
If you experience issues with your Audison SR6.600 amplifier, consider the following common troubleshooting steps:
- No Power: Check the main power fuse, the amplifier's fuses (2 x 30A), and ensure the remote turn-on signal is present (if not using ART). Verify all power and ground connections are secure.
- No Sound: Confirm that the input signal cables (RCA or speaker-level) are properly connected to both the head unit and the amplifier. Check speaker wiring for correct polarity and secure connections. Verify crossover settings are not filtering out the desired frequencies.
- Distorted Sound: Reduce the input gain level. Check speaker impedance to ensure it meets the amplifier's minimum requirements. Inspect speaker cones for damage.
- Amplifier Overheating: Ensure adequate ventilation around the amplifier. Verify speaker impedance is not too low. Check for short circuits in speaker wiring.
- Noise/Hum: Check for proper grounding of the amplifier and head unit. Ensure RCA cables are routed away from power cables. Verify input signal quality.
If problems persist after performing these checks, consult a qualified car audio technician or contact Audison customer support.
7. Specifications
Detailed technical specifications for the Audison SR6.600 amplifier:
| Category | Specification |
|---|---|
| Channels | 6 |
| Class | D-Class |
| Total Power RMS | 1120 W |
| Efficiency | >87% |
| Power Supply Voltage | 11 ÷ 17 VDC |
| Fuses | 2 x 30A |
| Idling Current | 2.2 A |
| Distortion (THD @ 100 Hz, 4Ω, 70% Rated Power) | 0.05 % |
| Bandwidth | 10Hz ÷ 42 kHz |
| S/N Ratio | 102 dBA |
| Input Sensitivity (Pre-In) | 0.32 ÷ 8 VRMS |
| Input Sensitivity (Speaker-In) | 1.6 ÷ 40 VRMS |
| Minimum Load Impedance (Ch 1-4) | 2Ω |
| Minimum Load Impedance (Ch 5-6) | 1Ω |
| Output Power (RMS) @14.4 VDC, 1% THD (6Ch mode @4Ω) | 85 W x 4 + 110 W x 2 |
| Output Power (RMS) @14.4 VDC, 1% THD (6Ch mode @2Ω) | 140 W x 4 + 185 W x 2 |
| Output Power (RMS) @14.4 VDC, 1% THD (5Ch mode @2Ω) | 130 W x 4 + 600 W x 1 (Ch5/6 bridged) |
| Output Power (RMS) @14.4 VDC, 1% THD (3Ch mode @4Ω) | 280 W x 2 (Ch1-4 bridged) + 370 W x 1 (Ch5/6 bridged) |
| Dimensions (L x W x H) | 314 mm (12.36 in) x 284 mm (11.18 in) x 47.4 mm (1.87 in) |
| Weight | 2.52 kg (5.56 lbs) / 6.64 pounds (3.01 kg) |
7.1. Dimensions Diagram
Figure 7.1: Technical drawing illustrating the dimensions of the Audison SR6.600 amplifier (A: 314mm, B: 284mm, C: 155mm, D: 135mm, E: 47.4mm).
8. Warranty and Support
The Audison SR6.600 amplifier comes with a 1-Year Warranty from the date of purchase. This warranty covers manufacturing defects under normal use conditions.
For technical support, warranty claims, or service inquiries, please contact your authorized Audison dealer or visit the official Audison website for contact information. Please have your product model number (SR6.600) and proof of purchase readily available when seeking support.
