... Total level:+-12dB/+-6dB Professional graphic digital equalizer1.single 31-Band 2.RFI filtering 3.XLR ,1/4" ... 4.Total level:Total level ±12dB / ±6dB1.Single 31-band equalizer2. 20mm oiled sliders with switchable range accurate ... 1/4" phone, and euroblock connectors10. Equalizer controls 31 bands (1/3 octave)11.Center frequency 20,25 ... ,31.5,40,50,63,80,100,125, 160 ...