General description The 9 Band Equalizer is designed for high-performance audio equalization in boats, RVs, and cars. It features 9 equalization bands and intelligent noise reduction, allowing for precise sound adjustments and an enhanced audio experience. Technical specifications Power supply: 12V DC Maximum output voltage: 8V RMS Leveling range: 12dB Subwoofer frequency adjustment: 30Hz to 120Hz Equalization bands: 50Hz, 100Hz, 250Hz, 500Hz, 1KHz, 2KHz, 4KHz, 8KHz, 16KHz Dimensions: Measurement allowed error is +/- 1-3cm Compatibility and accessories Compatible with CD and AUX inputs Supports front left/right channels, rear left/right channels, and 2 subwoofer output channels Installation Easy to install in cars, boats, RVs, and other stereo systems Usage Adjust the aux volume using the gain knob for better sound quality Utilize the subwoofer output and adjustment function to enhance the sound experience Other information Material: High-quality metal and plastic Built-in chip