I don't know the answer to your question, but it is how I master my tracks
I just push everything through a compressor with >50ms attack, maybe get it to dip 1-3dB on kicks and snares. Then push it through the Limiter, slow attack, disengage "look ahead", fast release. To taste. As I said in another post, I've experimented with punching the limiter down by 8dB on every kick and snare...and well...I'll post that example at the bottom. Really you don't want more than a 1-2dB dip on the limiter - experiment. The coup de grace is the output gain after the limiter followed by the soft clipper. Set the soft clipping to exactly 27. You can usually squeeze another 3dB!! out without TOO much distortion.
I think that this is all bullshit and digital mastering is a technique to make electro house, pop, and rock sound good on iPhone and laptop speakers. "Wow, that track is so LOUD!" DJs have always been expected to know their tracks and how to mix and EQ them live. I've noticed that if your tracks are TOO quiet, people won't even bother with them.
Here's a really loud track clipped to all hell in Reason (DAC clipping on every drum hit, yum!):
http://soundcloud.com/lucider/lucider-untitled-wip-demo
- J.P.
---------- Post added at 10:23 ---------- Previous post was at 10:16 ----------
Should give credit to Loki, BTW, his YouTube tutorials are great. When I saw them it made me feel like I could make a professional track in Reason - before that everyone would trash it and say it was just to learn.