Audio USB Interface Studio 22 + The STUDIO 22+ interface allows you, thanks to an XLR / Jack combo input, a stereo jack input, phantom power and its USB 2.0 interface, to record yourself directly on your computer. Can be used with CUBASE, PRO TOOLS or any other major M.A.O. Mac and PC compatible. One mono input for instrument/mic: One balanced XLR combined connector (13) and balanced Jack (14). Phantom power with ON/OFF switch and LED indicator (1). Gain control knob (3) One stereo line/instrument input: Dual 6.35mm Jack socket (balanced/unbalanced) (12) Volume knob with LED signal indicator (SIG) (4) One stereo USB audio port (7) : One stereo BUS channel (from Mac or PC). USB volume knob (2) One MAIN MIX stereo output: Dual Jack socket (balanced/unbalanced) (5). MAIN MIX output level knob (11) Hi-Z" line/instrument impedance button (15). One stereo headphone output: PHONES Jack socket (6). PHONES output level knob (9) One stereo USB port (7) : One stereo BUS channel (from Mac or PC). General features: Power LED (green) Mac OS compatible (CoreAudio) Windows compatible (Prodipe ASIO 2.0) USB power (USB A to B cable supplied) External power supply possible: DC 5Volts/500mA (via USB: USB charger, smartphone charger, etc non supplied ) 3 pin XLR connector (IEC 60268 standard), pin 1: ground, pin 2: hot (+), and pin 3: cold (-) Power consumption: 2.5 Watts (max) Dimensions: (W x H x D) 109mm x 52mm x104 mm Weight: 0.5kg