Find problem frequencies: Use a frequency analysis to identify frequencies that seem over or underrepresented in a recording, and then use EQ to correct these imbalances.

Cut instead of boost: If you need to reduce certain frequencies, start by cutting instead of boosting. A cut can often improve the sound without adding noise or distortion.

Use narrow cuts to remove unwanted frequencies: If you want to remove a specific frequency without affecting the surrounding frequencies, use a narrow cut to remove the problematic frequency without affecting the other frequencies.

Use narrow boosts to highlight important frequencies: If you want to bring out a specific frequency in a recording, use a narrow boost to highlight that frequency.

Keep an eye on the overall spectrum: Be careful not to over-correct in one frequency area, as this can affect the entire spectrum and create phase issues.

Use EQ in moderation: Avoid using too much EQ, as this can introduce noise or distortion and negatively affect the overall sound.

Avoid adding excessive low frequencies: Excessive low frequencies can make the sound seem louder, but this can also introduce phase issues and make the overall sound unbalanced.

Avoid exaggerating high frequencies: Excessive high frequencies can give a sense of clarity, but this can also make the overall sound aggressive or fatiguing to the ear.

Use different EQ for different instruments: Avoid using the same EQ settings for all instruments, as each instrument has unique sound characteristics that require different EQ.

Listen carefully: Listen carefully to the changes you make with EQ and how they affect the overall sound. By keeping an attentive ear, you can avoid mistakes and achieve optimal sound.