Here is my “guide” to Bass EQ…
20hz-60hz
Low Cut to remove excessive seismic lowend and increase headroom.
60hz-100hz
Boost with Wide Q to bring the low end closer to the listener.
200hz-400hz
Cut -3dB to reduce mud
400hz-800hz
Boost makes bassline stand out more in a mix.
800hz-2kHz
Boost to bring out more attack of the string. More “pluck” sound
2kHz-5kHz
Boost/Cut here for the finger on the string noise.
Remember we are all after different tones so these points are simply “safe zone” to start sculpting.