Sound Devices presents the 552 Production Mixer, the most technologically advanced portable audio mixer ever made. Using the best analog and digital technologies, along with advanced mechanical construction, the 552 gives professionals a superb sounding, compact, lightweight and power-efficient mixer that is equally at home in simple run-and-gun applications or in complex multi-input, multi-output production setups. The 552 contains five precision high-dynamic-range transformer-balanced microphone inputs with expanded gain and headroom. Each input accepts audio sources of various types and levels. Inputs have their own limiter, sweepable high-pass filter, and pre-or-post-fade direct output. The 552 has an integrated two-track, digital audio recorder writing industry-standard Broadcast Wave files to SD and SDHC media. A simple joystick controller is used to take command of recording functions. Push up to begin recording. Either WAV or MP3 files can be recorded. Recordings can be either 24 or 16 bit, with WAV files having sampling rates from 44.1 kHz up to 96 kHz. With its three sets of balanced master outputs (plus numerous unbalanced connections), the 552 provides complete connectivity for multi-camera and complex production setups. Additionally, a digital output option is available for either the XLR connectors or the 10-pin multi-pin outputs. When selected in the Setup Menu, the master XLR outputs can output four channels of 24-bit (or 16-bit) AES/EBU signals, the source of which is selected in the Setup Menu.