Once a track is exported to a WAV or AIFF file, any information that is higher than 0dB will be chopped off, leading to a distorted, 'in the red' clipped sound. There is only so much musical information we can fit into a file and that cutoff point is the 0dB ceiling.
With digital files clipping at 0dB there is an inherent limitation that we have to work against. Strategies for a loud mix/master (that still sounds good).
