DSP EFFECTORS This mixer has 32-bit dual engine DSP and 24-bit ADC/DAC converter, it has 99 different digital effects, like PITCH SHIFTER, TREMOLO, RADIO VOICE and so on. Meanwhile, you can adjust the time interval of every effects manually according to your own needs. SUB OUTPUTS Indenpendent SUB buttons on all channels, control to send the audio signal to USB output for monitoring and track recording. SUB TO MAIN button can send the SUB signal to MAIN OUT. SYSTEM FEATURES 8/12/16 input channels mixer Built-in Bluetooth, connect with mobilephone or other bluetooth player Built-in MP3 player to play music in multiple formats and record, with LED display Connect USB to PC to play/record the stereo audio Preset 99 digital effects LOW CUT, POST/PRE, MUTE, SOLO, MAIN and SUB buttons on all mono channels 9-Band stereo graphic equalizer Indenpendent MP3 equalizer (2 band : High-Low) Two AUX outputs Two kinds of master output (XLR+6.35Jack) Rugged metal chassis Built-in multiple power supply (100-240V) for worldwide use