If you want to get it clearer down there, you just simply have to start EQing or try different bass&kick tones until it fits.
Usually it is impossible to have "full" kick and bass tones simultaneously. They will fight for the room down there and which ever is higher in volume will win and mask the another one.
So try and cut those bass frequencies. Just for some rough example, try to get the kick to provide the "main meat" around 65-100hz, then adjust the bass EQ so that it fits properly "ontop" of that. You need to make them work like a team. Also you might want to try slight boostes too. Like add a bit more kick "snap" or bass "string&plug" sounds.
Overall I can't give you any magic recipe that will work all the time, but hope this helped
For exaple this is how I do it usually when the song has that typical bass/kick syncro arragment:
- Listen them together and find out how they are masking each other etc. (can't really help this, it is the "ear" thing)
- I usually limit bass quite much, the song needs to have constant bass volume.
- I EQ and compress (the main work here)
- Then I find the volume balance. Good thing to start is to try to get it to sound like the kick would "send" the bass guitar ringing. So put that kick just a bit higher than bass in volume.
- When I have gotten them to "groove" as a one instrument I send them both to one group channel. In that channel I usually (depends if it needs it at all) put yet another limiter to "glue" those two a little better. Usually the limiter just cuts some of the kick's peaks every now and then (I really don't use that limeter at all often. Sometimes it will give that "sound" which is missing, sometimes makes everything sound worse heh)
Hope you get something out from this
