I have an obsessively-crafted fat dub tone that I continue to refine, even after 20 years working at it. The number one thing is technique. I will listen when I hit a tonal sweet spot and then determine what I doing all across the entire instrument:
Plucking Hand
- Where is my plucking hand in relation to the strings?
- Where am I anchoring my thumb? Do I shift that?
- How much pressure did I apply when plucking?
- Which part of my finger is hitting the string?
- Which finger leads? Am I strictly alternating?
Fretting Hand
- Which finger frets each note? Do I favor some fingers over another?
- How am I anchoring my hand behind the neck?
- How much pressure do I apply when fretting the notes? Am I directly on the fret or somewhere off to the side?
Instrument
- How have I balanced my pickups and tone controls?
- Which strings do I prefer to play?
- How high is my string action? How does that affect my plucking?
- If I can play the same line in different places, which do I favor over the others? (e.g. playing a 10th fret D on the E-string will sound much fatter than the 5th fret on the A-string or the open string itself)
Other Considerations
- Am I cognizant of note duration/accents/volume?
- How am I staying aware of the groove?
- Does everything lock with the feel? Am I comfortable enough with the feel to alter it at will? (e.g. varying metronomic precision with a more laidback style while still maintaining the groove)
Gear is second to all the factors above, but can really help get you from 90% to 100%. I like to boost everything around 80-160 Hz, kill the mids in/up/out/around 400-800 Hz, and keep just enough treble to avoid losing every bit of harmonic character. 15" cabs are my best friend, too.
Finally, my last weapon of choice that pushes me above 100% is the
One Control Crimson Bass Preamp pedal. Because I use a one-channel amplifier, I will to keep my settings flat. This gives me versatility across a 3+ hour set, but does mean that I lose my EQ preferences. The CRB affects everything equalization property I described above with a single stomp, so I can get my second channel immediately.
So yeah...that's how I get my bass fatness.
~Nick von Nick
Bonus
For regular fatness, I just eat really quickly and fail to notice that I'm completely satiated.
It works
way too well!