The Sound Devices 552 Production Mixer 5 transformer-balanced XLR mic inputs, each with its own limiter and sweepable high-pass filter. Each of the inputs also has its own pre-or-post-fader direct output. It also features 3 sets of master outputs and several unbalanced outputs, allowing you to connect to a variety of recorders, cameras, and more. The master XLR outputs can be set for analog or digital operation, and are capable of sending 4 channels of 24-bit AES/EBU signals. The 552 also features an internal stereo recorder, which can capture WAV or MP3 files at either 16-bit or 24-bit; with sample rates from 44.1kHz all the way up to 96kHz.