🎚️ CHAPTER 12: EQUALIZATION (EQ)

Foundation X Academy – Audio Engineering & Music Production Program

Overview

EQ (Equalization) is how engineers shape sound by adjusting frequencies.

This is one of the most important tools in mixing. When used correctly, EQ creates clarity, separation, and balance. When used incorrectly, it can completely ruin a mix.

 WHAT YOU’LL LEARN

• What EQ is and how it works

• Frequency ranges:

-Sub (20–60Hz)

-Low (60–200Hz)

-Low-Mids (200Hz–500Hz)

-Mids (500Hz–2kHz)

-High-Mids (2kHz–6kHz)

-Highs (6kHz–20kHz)

•Types of EQ filters:

-High-pass (low cut)

-Low-pass (high cut)

-Bell curves

-Shelves

•Subtractive vs additive EQ

•Cleaning up muddy mixes

•Creating space between instruments

🎬 WATCH THE LESSON

⚠️ IMPORTANT: Watch this full lesson before moving forward. This knowledge applies to every chapter after this.

WHY THIS MATTERS (REAL-WORLD APPLICATION)

If you don’t understand EQ, you’ll:
Have muddy, unclear mixes
Overlap frequencies between instruments
Make vocals sound harsh or thin
Fight your mix instead of controlling it
Professional engineers use EQ to remove problems first, enhance second.

đź§Ş QUICK PRACTICAL EXERCISE

Inside your DAW:

1. Load a vocal track

2. Add an EQ plugin

3.Do the following:

High-pass filter at ~80Hz

Sweep mid frequencies to find “mud” (~200–400Hz)

Slightly reduce problem areas

4. Compare before vs after

👉 Focus on cleaning, not boosting

⚠️ COMMON BEGINNER MISTAKES

❌Boosting too many frequencies

❌Not cutting low-end where needed

❌Making extreme EQ moves

❌EQ’ing without listening in context

❌Trying to fix everything with EQ

📥 DOWNLOADABLE RESOURCE

• EQ Frequency Chart (Mixing Guide)

• Vocal EQ Cheat Sheet

Take Chapter 12- Equalization Test

A Passing Score of 70/100 is needed to proceed to next chapter.

🔒 MEMBER NOTE

This content is part of Foundation X Academy (Members Only)
Your access includes:
Full 20-chapter program
Real-world engineering techniques
Industry-level training without college debt