... Low noise Mic amplifier and 2 stereo input amplifier 2 stereo Aux return input amplifier, 1Monitor output amplifier, 2 Aux Output amplifier, 1 tape out amplifier.2. Built-in ... grade potentiometers.6. Adopted high grade 60mm fader.7. The channel EQ: Low, Mid, High, @±15dB.8. Low cut filter ... 75Hz-18dB/Oct on each Mic channel.9. Input/output channel are all balanced mide, set a Mute button ...