Your Bass Isn't Missing. It's Undefined.
A track feels like it has no bottom, and the instinct is immediate: boost the bass. On a lot of AI-generated tracks, that instinct is exactly wrong, and following it makes the actual problem worse, not better.
The two things that get confused
A track can lack low-end energy, genuinely no content down there, or it can lack low-end definition, real energy present but smeared into something that doesn't read as a foundation. These feel identical on first listen and require opposite fixes.
Pull up a spectrum analyzer on a track that feels bottomless and you'll sometimes find the strongest energy concentration in the whole mix sitting right in the low end, 100 to 250 Hz, exactly where you'd expect a kick and a bass to live. The energy is there. What's missing is separation, the kick doesn't have punch sitting inside all that warmth, the vocal doesn't have room to sit above it.
Why boosting makes it worse
If the problem is a lack of definition, adding more energy into that same range doesn't create punch, it thickens the cloud that's already smearing everything together. You end up with more low end and less clarity at the same time, which is the opposite of what "no bottom" was actually asking for.
The real fix
Clean up, don't add. A cut somewhere in the low-mid range, often somewhere between 240 and 320 Hz depending on the track, targeted at the specific frequency where the muddiness concentrates, lets the kick and the vocal step out of the warmth instead of getting buried in more of it. Sweep through that range while listening for the moment separation actually happens, then stop, don't overcut chasing a "cleaner" sound than the track actually needs. Cleaner isn't always the goal, definition is.
How to tell which problem you actually have
Look at the spectrum before you touch anything. If there's genuinely little energy in the low end, that's an energy problem, and it might call for a different fix entirely, layering, regenerating, or accepting the track's natural character. If there's real energy sitting there already and the track still feels bottomless, that's a definition problem, and the fix is subtraction, not addition.
The instinct to reach for more when something feels like it's missing is natural. On a track with real energy and no definition, it's the one move guaranteed to make things worse.
— Josh Founder, JG BeatsLab