Some starting points based on advice from Bobby Owsinski (update: and others). Disclaimer: Subtle. Moves of more than 3dB mean you should probably move the mic.
Kick
- Reduce ~ 200Hz to 500Hz (the mud-range) to remove boxiness
- Reduce ~ 1.5k to remove honk
- Add 1.5k-2k (kick-in) for more snap
- Add 70-80Hz for fullness/tone (esp the clicky kick-in)
- Add 5k for definition
Snare
- Add 10-12k to make a crisper
- Add 125Hz to make it fuller
- Add 1k for definition.
- Remove boxiness at 500-800Hz
Hi-hat
- Add at 10 kilohertz for sizzle
- High-pass at 160Hz for definition
- Reduce at 1k to make it thinner
Rack toms
- Add 200 to 500Hz to make them sound fuller
- Add 5k for definition
Floor tom
- Reduce 150 to 500Hz to remove the beach ball
- Add 5k to for definition
Cymbals
- Add 10k for sizzle
- High-pass at 160Hz for definition
- Reduce 250 to 500Hz (low mids) and 3-3.5K to make room and reduce harshness