Waves DSPRO StageGrid 4000 Compact 32 In/16 Out SoundGrid Expansion UnitThe DSPro StageGrid 4000 is an I O interface designed for eMotion LV1 live mixing systems. It features 32 analog mic line inputs and16 analog outputs, plus four channels of AES EBU digital I O. All channels are digitally controlled. Its two headphone outs have independent volume controls. All components are carefully selected and tested to ensure continuous system stability and maximum dependability, and there is a redundant power supply. Built in a