Equipment for Mastering?
Lots and lots of Equipment.
Lots of expensive equipment.
Eq's,...Parametric..tube or solid state
Compressors,...tube and solid state, multiband, dual band.
Limiters.
Converters, ACD, DAC and SRC's. @ channel, and multiple 8 Channels.
DAW with some kind of Editing software, SadiE, Audiocube, Nuendo, Sequoia and Sonic Solutions. Plug-Ins.
Router.
CD burner wit ability to test cd's. testing software.
Monitors, Accurate frequency repro.
Amplifiers, clean and powerful.
PCM 1630, exabyte, DDP...
Maybe a lathe if your doing vinyl.
Bit scope
Room that is acoustically balanced.
or
Protools LE (insert your software here)and Wavelab(or Ozone..T-rackS) your PC and a decent pair of home speakers.
Any and all combinations of the above.
Mixing....is taking indivually recorded tracks representing a song and balancing the right instruments using panning, eq, compression and multi-effects processors and fader levels to create a stereo track that is pleasing to the ear.
SoMm