Description: 7 Bands: The car audio equalizer has 7 equalization bands (63Hz 125Hz 315Hz 750Hz 2.2KHz 6KHz 12KHz), the subwoofer frequency can be adjusted from 63Hz-12kHz. 6 Channel Outputs: This 7 band EQ equalizer supports front left right channels, rear left right channels and 2 subwoofer output channels. The independent subwoofer output and adjustment function enhance the sound experience in the car.CD AUX Inputs: The car parametric equalizer supports CD and Aux inputs. Built in DSP chip, reduces howling interference, prevents noise, is accurately adjusted, and provides clearer and better sound quality.Premium Material: The crossover amplifier equalizer adopts a premium aluminum shell, DC 12V powered, has high texture, is easy to operate, and has a long service life.Easy Installation: The audio equalizer is easy to install, car audio EQ tuning, effectively modifies and adjusts the audio and timbre effects, and greatly improves the control performance of the entire sound effects. Specification: Product size: 18.5cmx11cmx3cm/7.28inchx4.33inchx1.18inchMaterial: aluminum shellApplicable voltage: DC 12V Package Includes: 1Car Audio Equalizer Note: Please allow slightly errors due to manual measurement and different monitors.