I've read "the Remixer's Bible" which is a great read, I recomend it, and in it says that a possible way to make iot come thru is to pan your kickdrum and your bassline very slightly off each other to make it come thru.
hmm, not too sure about that. perhaps thats something that could be done when mixing a band song, but i wouldnt recommend it for rave music. your kick and low bass should have little width and be dead centre.
in regard to the original question. it really depends on what sort of feel you're trying to achieve. as mentioned, one method is to high pass your kick, and let the sub completely take over the lows. for this style, most producers use kicks with a fundamental around 100 hz.
another method is to sidechain your kick to the bass, as to duck it every time the kick comes through. in that case you want your kick to go much lower, around 60 hz or so, or even better, tune your kick to be on the same note as your bass.
also, sidechaining doesnt have ot be achieved just by compressors. you can also rend everything to audio, and use fades. cubase has an amazing fade editor, and it can mimic a great "pump" feel much faster and accurate than any compressor i have used. and dont forget that sidechaining isnt the only option. a lot of steppy tunes simply dont have any bass when the kick plays. arranging is very important in that case, and audio is again more accurate, as you can see when your bass finishes and kick starts.
these are just guidelines, and its often that you'll manage to discover a wonderful combination of kick/bass that will happily exist together without any eq or compression, whereas other times you could be fighting for days to sort out your low end clashes to no avail. so yeah, numbers are good, techniques can be useful, but what matters at the end is how it sounds.
