Parts of the frequency spectrum

Low-end: 0-120Hz

• Kick fundamental usually around 75Hz
• Bass fundamental usually around 85Hz

Low-mids: 120-500Hz

• Body, punch, and impact
• Fundamentals of most instruments

Mid-range: 500-2kHz

• Can get crowded
• Usually where you need to notch out specific frequency buildups

High-mids: 2kHz-7.5kHz

• Brightness and attack
• This is where to boost if you want the track to cut through

Highs: 7.5kHz

• Shine, air, crispiness
• Essential to getting a song to feel loud (see Using EQ to increase loudness)¹