The BOSS AVA-1210 is a parametric equalizer with subwoofer output, designed for car audio systems. It functions as a preamplifier, offering precise control over audio frequencies to compensate for acoustic anomalies within an automotive environment. This unit is positioned as a "Mission Control Center" for high-end automotive sound systems, aiming to deliver excellent sound quality and long-lasting high performance.
Function Description:
The AVA-1210 is an active gain preamplifier that incorporates a specific bandwidth parametric equalizer with shelving control. It allows users to boost or cut specific frequency bands by up to 18dB, enabling detailed sound customization. The unit also features dedicated subwoofer outputs with level controls, an input selector for AUX or CD sources, and a fader control for balancing front and rear speakers in a 4-speaker system. Its design aims to eliminate the need for extra space often required by other high-end automotive sound system components.
Important Technical Specifications:
- Frequency Bands:
- Front Channel: 125Hz, 500Hz, 3.5kHz, 12kHz
- Rear Channel: 50Hz, 600Hz, 6.3kHz
- Boost/Cut: +/-18dB
- Signal-To-Noise Ratio: 110dB Ref 1V Input
- Frequency Response: 10Hz-15KHz, +/-1dB
- Maximum Output Voltage: 8V RMS
- Total Harmonic Distortion: 0.05%
- Input Sensitivity: 150mV
- Headroom: 20dB
- Input Impedance: 10K Ohms
- Stereo Separation: 82dB / 1KHz
- Operating Voltage: 11-15V Negative Ground
- Output Impedance: 50K Ohms
- Size (HxWxD): 1" x 7" x 4-9/16" (27.5mm x 178mm x 115mm)
- Power Supply: On-board 30V bi-polar switching power supply
- Chassis: Universal half-DIN chassis for ease of installation
- Connectors: Gold-plated RCA input/output connectors
Usage Features:
- Volume Control: A master main volume control that adjusts the overall output level. It is recommended to always use this control as the primary volume adjustment due to its better electronics, higher S/N ratio, and more linear response compared to source unit volume controls.
- Fader Control: Adjusts the volume balance between the front and rear speakers in a 4-speaker system.
- Parametric Equalizer Controls: Seven individual controls for boosting or cutting specific frequency bands for both front and rear channels. Each band has a specific bandwidth.
- Subwoofer Output Volume: A dedicated control to adjust the output level of the subwoofer RCA jack.
- Subwoofer Frequency Selector: A switch to select the subwoofer crossover frequency at 32Hz, 64Hz, or 128Hz.
- Input Selector Switch: Allows selection between AUX or CD input sources.
- CD Input Gain Selector: A switch to adjust the input gain for the CD source to Low, Mid, or High.
- Low Noise Design: Utilizes BI-FET op-amp design to yield minimum distortion.
- Signal Overload Prevention: 20dB headroom helps eliminate signal overload.
- Illumination: Features blue light illumination.
Installation and Maintenance Features:
- Installation: The manual provides a detailed electrical installation diagram showing connections to a head unit, AUX unit, sub amplifier, and full-range amplifiers, as well as front, rear, and subwoofer speakers.
- Grounding: If engine noise is audible, users are advised to check the ground connection on all units in the audio system.
- Source Volume Setting: It is recommended to set the source unit's volume (e.g., car stereo) at a position between 6 o'clock and 9 o'clock and leave it at this setting, relying on the AVA-1210's volume control for overall adjustment.
- Compliance: The equipment is in conformity with the provisions of EMC Directives 89/336/EEC, 92/31/EEC, and 93/68/EEC.
- Accessories: For best results and top performance, BOSS Link installation accessories such as RCA interconnects, power cables, and speaker wire are recommended.
- Professional Consultation: Users are encouraged to consult a professional car stereo installer for application advice or troubleshooting.
The AVA-1210 is designed to be a comprehensive solution for fine-tuning in-car audio, offering advanced equalization capabilities and robust performance within a compact form factor.
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