Digital equalizer 1.Dual 31-Band 2.RFI filtering 3.XLR ,1/4"phone, ... level:+-12dB/+-6dB Professional graphic digital equalizer1.Dual 31-Band 2.RFI filtering 3.XLR ,1/4"phone and euroblcok ... level:Total level ±12dB / ±6dB 1.Single 31-band equalizer2.20mm oiled sliders with switchable range accurate constant ... XLR, 1/4" phone, and euroblock connectors10. 2×31 band EQ11.Center frequency 20,25,31.5,40,50 ...