BOSS Audio Systems EQ1208 4 Band Half-DIN Car Equalizer | Certified

Front Panel Controls 1.CD/Radio Selector: This button permits you to select the equalizer input source. The unit features separate rear panel RCA inputs for radio and CD/DVD players. 2.Illumination Selector: This button permits you to select the color of the front panel illumination. 3.Master Volume Control: Use this control to adjust the overall output volume level. 4.Fader: Use this control to balance the sound level between front and rear speakers as desired. 5.Subwoofer Volume: This control permits you to increase or decrease the output level of the subwoofer channel. 6.Subwoofer Frequency: Use this knob to set the crossover frequency for the subwoofer output channel (it is for a low pass filter). 7.Boost/Cut Controls: Each of these controls represents a range of frequencies surrounding a center frequency to cover the audio spectrum from subwoofer to treble. Adjust these controls to suit your taste and listening environment. Each center frequency can be adjusted +/- 18 dB.

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