This 12-channel (4 mono plus 4 stereo) mic/line mixer features our highly acclaimed IMP “Invisible” Mic Preamps, ULN Ultra Low Noise circuitry plus our new FBQ Feedback Detection System, a 24-bit multi-FX processor and an auto-range power supply. Highlights include four state-of-the-art, studio-grade IMP “Invisible” Mic Preamps with state-of-the-art 4580 operational amplifiers that provide the lowest noise and distortion plus ultra-high 130 dB dynamic range and the revolutionary, FBQ Feedback Detection System that instantly displays the feedback frequencies via the LEDs of the built-in 7-band stereo graphic EQ. Plus, there is an integrated 24-bit digital stereo FX processor with 99 presets of VIRTUALIZER fame (including reverbs, delays, chorus, compression, tube distortion, vinylizer and more), a breathtaking XPQ 3D stereo surround effect for an enhanced stereo image and even a Voice Canceller for karaoke fans. Its full-featured channel strips include input trim controls with level-set and clip LEDs, ultra-musical 3-band EQs with low cut filter, monitor and FX sends, mute switch plus high-quality logarithmic faders for exact signal level control. The 4 mono channels have balanced low-impedance mic inputs with state-of-the-art IMP “Invisible” Mic Preamps, switchable +48 V phantom power for condenser microphones, balanced high-impedance line inputs for direct connection of line sources or high-output instruments, inserts for connecting external processors and a pan control. Stereo channels include stereo line inputs, additional mono mic inputs on channels 5/6 and 7/8 and a balance control.