What is a Pre-Master?
A premaster is the final mixed version of your song that is exported in a specific format for mastering. To get the best mastering quality, we recommend that the final premaster is exported at a bit rate and depth of no less than 16 bit 44.1 kHz, a master volume output of -3 dB, or no less than -10 dB, and no processing on the mix bus or master fader. This means removing processing such as compression, EQ, wideness, limiting, and dither on the master bus fader.