Avid Digidesign Digi001 MX001 8 Channel Recording Hardware Interface for ProTools Rev K

All Digi 001 inputs and outputs are factory calibrated for 14 dB of headroom below 0 dB, or full code. This means at the nominal reference input level (+4 dBu or –10 dBV) you can have up to 14 dB of headroom before input or output clipping occurs.