Technical Pro EQB7151 Professional Dual 20 Band Equalizer Rack Mount Equalizer, Black Dual 20 band equalizer with individual LED indicators - Inputs: RCA (3 audio sources) - iPod / MP3 input - Outputs: RCA (record, main) Frequency response: 20Hz-20kHz - Removable Rack mount brackets Equalizations Points: 20Hz, 40Hz, 90Hz, 150Hz, 220Hz, 320Hz, 450Hz, 600Hz, 800Hz, 1.2kHz, 2kHz, Adjustment Range: 12dB - Fluorescent graphic spectrum analyzer display Direct / Equalizer function allows option of unfiltered pass-through- Equalizations Points: 20Hz,40Hz,90Hz, 150Hz,220Hz, 320Hz, 450Hz,600Hz, 800Hz, 1.2kHz,2kHz, 3kHz,4.5kHz, Direct / Equalizer function allows option of unfiltered pass-through- Bass booster increases the low frequency levels - Loudness booster increases the low and high frequency levels 3kHz, 4.5kHz, 6kHz, 8kHz, 10kHz, 12kHz, 14kHz, 17kHz, 20kHz 6kHz, 8kHz,10kHz, 12kHz,14kHz, 17kHz, 20kHz Bass booster increases the low frequency levels - Loudness booster increases the low and high frequency levels