Product Description Kicker 03KQ30 30-Band Equalizer .com .com Product Description Thirty bands of 12dB cut or boost at 1/3-octave spacing mean ultimate frequency control in stereo or mono. A scorching 9-volt output lets you pour on the signal to your amps. Adjustable input and output controls for each channel add more control, and fast-acting clip indicators keep things from getting too crazy. Thirty bands of 12dB cut or boost at 1/3-octave spacing. Click to enlarge. View control diagram. Click to enlarge.30 Bands at 1/3 Octave Spacing Allows precise adjustment at each 1/3 octave measured frequency from 20 Hz to 20 KHz. 12 dB Boost or Cut Available at each of the 30 bands. High Voltage Preamp Accepts 500 mV to 9 Volts audio signal and supplies up to 9 Volts of output. Separate Left and Right Input/Output Controls Allows precise adjustment to input sensitivity, output voltage, and channel balancing. Separate Left and Right Input/Output Clipping LEDs Visual indicators to aid in setting input gain and output level controls. Mono / Stereo Selector Allows one KQ30 to equalize both the left and right channels or two units for independent left and right equalization settings. EQ / Bypass Switch Allows you to defeat the equalizer and compare equalized and non-equalized sound. What's in the Box Kicker 03KQ30 30-Band Equalizer, Mounting Screws, User's Manual