Instrument EQ

Instrument EQ

Kik Drum
60-80Hz - Bottom;
2.5KHz - Slap.

Snare Drum
80-120 Hz - Bottom;
240Hz - Fatness;
1-3KHz - Crispness.

Hi-Hat and Cymbals
200 Hz - Clang or gong;
2-4 kHz - Stick hitting metal;
6-10 kHz - Sibilance;
7.5-10KHz - Shimmer.

Rack Toms
240 Hz - Fullness;
2-5 kHz - Attack;
8 kHz - Overtones.

Floor Toms
80 to 240Hz - Fullness;
2-4 kHz - Attack;
8 kHz - Overtones .

Conga/Bongo
200-260 Hz - Resonance;
2-4 kHz - Presence and Slap.

Bass Guitar
60-80Hz - Bottom;
700Hz-1kHz - Attack or Pluck;
2.5kHz - String Noise or Pop.
Any apparant muddiness can be rolled off around 300Hz.

Electric guitar
100-250Hz - Adds body,
250-800Hz - Muddiness area,
1-6kHz - Cuts through the mix,
2.5-3KHz - Clarity,
6-8kHz - Presence and bite.
This depends on the particular guitar sound and the actual sound mix.
Apply either cut or boost around 300Hz, depending on the song and sound.
Boost around 3kHz to add some edge to the sound, or cut to add some transparency.
Boost around 6kHz to add presence. Boost around 8 to 10kHz to add brightness.

Acoustic Guitar
80-120 Hz - Bottom;
100-250Hz - Body;
2.5-5KHz - Clarity;
6-8kHz - Presence;
8-12kHz - Brightness.
Apparant muddiness can be rolled off between 100-300Hz.
A small amount of cut around 1-3kHz can help push the image higher.
Small amounts of boost around 5kHz to add some presence.
Nylon string guitars can have slightly bell-like overtones above 6 kHz

Piano
40-60Hz - Resonance;
60-120Hz - Bottom;
100-250Hz - Upfrontness;
250-1kHz - Muddiness;
2.5-5 KHz - Presence;
6-8kHz - Adds clarity;
10KHz - Crispness.
Any apparant muddiness can be rolled off around 300Hz.
Apply a very small boost around 6kHz to add some clarity.
Honky-tonk sound at 2.5KHz boost especially with a narrow bandwidth (high "Q").

Electric Organ
80-120 Hz - Bottom.
240 Hz - Body.
2.5 kHz - Clarity.

Horns
120 to 240Hz - Fullness.
1kHz - Tinny area.
2.5-8KHz - Shrill.

Harmonica
240Hz - Fatness.
3-5KHz - Bite.

Strings.
50-100Hz - Adds bottom end (larger instruments);
100-250Hz - Adds body;
250-800Hz - Muddiness area;
1-6kHz - Sounds crunchy;
6-8kHz - Adds clarity;
7-10 kHz - Scratchiness;
8-12kHz - Adds brightness.

Vocals
100-250Hz - Fullness;
200 to 280Hz - Boominess;
250-800Hz - Muddiness area;
4-6kHz - Presence;
6-8kHz - Sibilance or clarity;
8-12kHz - Brightness;
12 to 15 KHz - Air.
To little at 3kHz is characterised by a lisping quality, and the letters "m:, "v", "b" become indistinguishable.

It does depend a lot on the mic used and the tonal qualities of the voice (and of course male or female). However... apply either cut or boost around 300Hz and apply a very small boost around 5-6kHz to add some clarity. Remember though that many vocal mics deliberately have a boost in this region (e.g. SM58), and adding to much can increase sibilance or become fatiguing.