Sound Devices MixPre-D, transformer-balanced mic/line selectable inputs, 48-volt or 12-volt phantom power, Unclippable input peak limiters, dualmono, or stereo linked operation, input panning to Left, Center, or Right outputs, Mid-Side Stereo (MS) matrix with width control and front-panel channel flip, return can be used as ch3/ch4 aux-level, inputs, selectable pan and level control, high-pass fi lters, 80 Hz or 160 Hz, slate microphone and tone oscillator, Mic/Line/AES digital selectable outputs, digital SR of 44.1k, 48k, 96k, USB streaming audio output for interconnection with Mac OS, Windows, Linux, and iOS devices, dedicated mic-level output on locking TA3 connector for unbalanced camera inputs, headphone monitoring of program audio or external return audio, sSunlight-viewable, 16-segment Gain LED output meter with adjustable brightness Internal battery-power from two AA, external power input, 10-17 VDC, high-strength, extruded aluminum chassis with metal connectors