Mixing and mastering often get confused. I am not saying you are confusing them, but I’d like to start off my post this way, for others users who might also have your same question…
Mixing is the stage where you balance your track. Mastering is the stage that comes after rendering your mix, where you apply, “post production processing.” ( I am aware that this is not a wikipedia quality description )
To get a good master, you must have a good mix. You may use google to research the veracity of this statement if you wish, “a quiet mix, will produce an audio waveform, that can handle more aggressive processing during the mastering stage.”
It is good practice to: Not record too hot. Not create samples that peak too hot. Have peaks balanced in the mix by using a combination of volume fader automation, and compression. When you are satisfied you mix is tight, than it is time to go to the post production stage of mastering. ** I believe, “mastering,” and what we are doing here at home are two different things. “Mastering,” professional mastering, takes place in a Mastering Studio, by an engineer with the knowledge and abilities to create the proper audio wave. ** Take note, by this I do not necessarily mean, the latest bundle of jackasses who are pumping out Justin Bieber’s records, or any major label stuff as of late. What I have affectionately come to call the process of what we do here at home is, “home brew master.” Home Brew Mastering can be as simple, or as complex as you would like it to be.
To master with only Renoise and no extra vst’s, would be to master without any multi-band dynamics. I am not going to argue whether this is good or bad… For years I did not have a multi-band dynamics vst as these are quite expensive… So I made do with what I did have.
Reverb on the master track is not a must… sometimes it works at like, “1 or 2%,” I am not a huge fan. I like a really simple Home Brew Mastering chain.
Compression —> EQ ----> Limit
You may like an example Renoise Project file… ***** https://www.box.com/s/8bdf7b62ebad31a98f0b
*** Note! The setting of the processors completely depend on your track. The settings in the project file are definitely not, “presets.” Just an example. I am sure, you have many advanced users, using the multi-band send function, to split there wave form, so they may do multi-band compression, or eq, and also stereo widening. I do not… I just happen to master with different plug ins, in a different daw… Although, I have, “home brew,” mastered in Renoise before regardless… not my fave workflow, as I’ve got some multi-band compressor vst’s now, and some other stuff for stereo widening, an some other eq’s that I really like…