"Kicker 03KQ30 Brand New The Kicker 03KQ30 is a 30-band equalizer which gives stereo as well as mono operation
The input gain controls match the KQ30's input to your receiver's output while output gain controls match the KQ30's output to your crossover or amplifier. Both adjustments feature clip lights that indicate the maximum signal level, so you can be sure all your music will always play clean and distortion-free. You can cut or boost each 1/3-octave-wide band up to 12 dB, so you can make some very powerful adjustments in order to tame even the wildest-sounding system. 03KQ30 Features: 30-Band Equalizer, Signal to Noise: 95dB, Max Output Level: 9Volts, Input Sensitivity: 500mV-9V, Equalizer Frequencies: 25 - 5, 000 Hz, Bass: 25Hz-80Hz, Midbass: 100Hz-320Hz, Lower Midrange: 400Hz-1.27kHz, Upper Midrange: 1.6kHz-5kHz, Treble: 6.4kHz-20kHz, Cut/Boost: /-12dB, Stereo/Mono Operation"