Audiopipe Xeq700 Xxx 7 Band Graphic Equalizer With Led Power Meter & Subwooer OutputXXX Band Graphic Equalizer with LED Power Meter Subwooer Output. Slim Mount Equalizer. Frequency Response: 20Hz~20KHz. Pre Graphic Frequency: 40Hz, 200Hz, 200Hz, 2KHz, 20KHz. Total Harmonic Distortion(TDH): 0.05%. Signal-to-noise Ratio: >80dB. Inputs: Switchable to ..