Features: * 7-band EQ range, adjustable from -12 to +12 dB. The subwoofer frequency range is 30 Hz to 120 Hz. * Powered by a 12-volt battery with 6-channel front, rear and subwoofer auxiliary stereo outputs to enhance your solid in-car experience. This ensures a strong and clear signal to your amplifiers and speakers. * Allows CD and AUX input (2 channels) with gain control to adjust auxiliary volume, CD and AUX input buttons can flexibly switch to different input modes. * Flexible control, subwoofer volume control, subwoofer frequency control, fader control, per Hz control. * This car equalizer comes with a 12V DC power supply. Plus, a sturdy metal chassis and high-quality knobs are available for all controls to improve your cueing. Specifications: Name: Car amplifier Material: Metal Rated voltage: DC 12V