Facmogu 7-Band Car Audio Equalizer, Adjustable 7 Bands EQ Car Amplifier Graphic Equalizer with CD/AUX Input Select Switch, Front/Rear + Sub Output, for Boat RV RTV Motorcycle Car Stereo Tone Control

7 Equalization bands (63hz, 125hz, 315hz, 750hz, 2.2khz, 6khz, and 12khz), could be adjustable from -12 to + 12db. The Subwoofer frequency is in 30Hz to 120Hz adjustment. (💡💡WARM TIP:If you have any questions or concerns, please don't hesitate to contact us, we will try our best to solve the problem for you.). Powered at 12 Volts with 6-channel Front, Rear and Subwoofer aux stereo output which enhances your sound experience in the car. That makes sure that your amplifier and speaker receive a powerful but clear signal.. Allowed CD and Aux (2 channel) input with gain knob to adjust aux volume, also a CD & AUX input button could switch flexibly to another mode input.. Flexible control as your favor, subwoofer volume control, subwoofer frequency control, fader control, each various Hz control.. This car equalizer is supplied by DC 12V power. Besides, strong metal chassis with high quality rotary knobs for all controls to enhance your tips feeling.