Reply to SOUND QUALITY: A big name taking over!

Hi there

I'm believeing of this question for a long time and I believe this is the right place to ask it.

I am, like you I presume, a clubber. You can find me week in and week out in clubs and festivals.
While I'm clubbin I always pay alot of attention to music, really ALLOT. That goes from mixing techniques, effects to sound quality. And that last thing is where this topic is about.

I'm wondering what the secret is of all the headline artists to give their sound an extra boost/punch.
With "headline" I mean world known Dj's like: Luciano, Reboot, Marco Carola, Richie Hawtin and so on.
The difference is clear when they take over from the previous dj. The last track that's played and the new track that's mixed in by the headline artist has always (in my opinion) a huge difference in dynamic range, this in a positive way.

That track always blows the previous track away like a cardhouse.

Does anyone know how they do it?
Is it something software based (Traktor settings, ...)
Better hardware/soundcard than the normal Audio 10 (I even heard dj's playing with the Audio 8 and still have this massive impact.)
Or is it the difference between MP3 and AIFF/WAV
Or maybe something else?

I believe this thread is usefull as I believe there are alot of people that are trying to get better sound quality during their performances, like me

Maybe one of you knows the solution.