Ashly GQX-3102 2 Channel 1/3 Octave Graphic EqualizerGQX-3102 Dual 31-Band Graphic Equalizer. The Ashly GQX-3102 is a graphic equalizer that features two channels of 31-band 1/3-octave EQ, a tunable high-pass filter circuit (8Hz to 200Hz), a switch-selectable cut or boost of either 6dB or 15dB. The full-throw faders are a custom-manufactured metal-..