fidox, do you mean that the same single note (like a D#3) sounds floating, or that
different notes seem to have different pressure levels?
If the latter is the case, the reason can be:
1. it's the way the synth reacts, mostly there's a small perfect range for a bassline, specially beneath it the pressure disappears easily
2. your room and your monitors produce dips and peaks at different notes, dependent of the frequency of the note.
Your monitors might have a resonance peak(s) or dip(s) at 40 to 120 Hz (the real bass range).
About kick and bass: it's common (but not a law) to have the kick peak at 80 Hz, and the bass around 60 to 50.
The kick will stomp your breast (lungs), the bass somewhere lower at your stomach and below.
You could use the Vinco to glue them together and compress the levels a bit in a natural way, but take care for the transients of specially the kick.
For dance you need good lows, I wouldn't use the strategy of Mr Arcadin for dance
I always cut everything below 40 Hz, but the levels will depend on the character of your lows.
The filter is a curve, playing with the level and the frequency you can determine the proportions of the different lows.
Remember, a filter creates some artifacts at the cutoff freq, you get a
resonant -S- like curve around it, a peak or a dip so to say, you prob know that.
This is specially the case when using a 24 db mode.
Agressively cutting below 40 Hz will create a peak at 40 Herz somewhere between 2 to 6 db!
The plugin that cares about exactly this phenomenon is the ISON by D-Vice, it is capable to flatten that -S-
Another thing to mention is your monitor level, the volume you have while mixing.
Your ears react different to different volume levels, regarding lows (and highs) perception, therefor the knob 'loudness' on (old) hifi gear which compensates for that at low levels.
To know how much lows you wanne have at a certain volume level can be difficult, depending from your neighbours
The only solution I have is playing a cd (or better a succesful 12" made for dance) which you know well and has great lows in the club.
I often use the Graphic EQ for precise lows leveling, making 'natural' curves throughout the level faders you avoid -S- curve artefacts.
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