Input channels: 10 Line Inputs (4 mono, 3 stereo), 4 Mic Inputs with 48V phantom power and HPH per channel. Output channels: 2 ST, 1 MONITOR, 1 AUX[FX] send, 1 PHONES. Bus: 1 ST, 1 AUX[FX] Robust, impact-resistant, powder-coated metal chassis. AC Adapter PA-10 (AC 38VCT, 0.62A) or equivalent recommended by Yamaha. Discrete class A “D-PRE” mic preamps with an inverted darlington circuit. Professional “1-knob compressors”. Digital effects processors: 24 “SPX” effects 24-bit/192kHz 2IN/2OUT USB Audio Interface function. Cubase AI access code included for Download on the Steinberg website. Cubasis LE available for free download on the App Store. MG REC/PLAY available for free download on the App Store.