You open the EQ plugin.
There are seven bands, a high-pass, a low-pass, a Q knob on each band, a gain control on each band, three shelf modes, two notch modes, and dynamic options on top of that.
The plugin is right; you just have no idea which knob does what for the specific source in front of you.
EQ is the most-used plugin in any mix, but it is also the one most beginners learn through trial and error rather than through a map.
The trial-and-error path takes years and leaves gaps.
The map path takes hours and gives you a starting point for every instrument and every common problem before you ever touch the dry signal.
This guide is that map.
It moves from the underlying fundamentals to a frequency breakdown for every common source, then out to the mix bus and mastering stages.
It finishes on one cheat sheet that fits every instrument on a single page. Each source section hands off to its own dedicated post when you want the full per-genre detail.
Once the moves are decisions instead of guesses, EQ becomes the fastest plugin in your chain rather than the most confusing.
TL;DR: How This Guide Works
The guide moves from the underlying mechanics to per-source treatment to the bus and master stages.
Read it top to bottom for the full picture, or jump to the section for the source you are stuck on.
- Fundamentals: what each EQ move does, when to cut, when to boost, what Q to use.
- Per source: vocals, drums, bass, guitars, piano, strings — with the bands that matter for each.
- Bus and master: how EQ on the mix bus and mastering chain differs from per-channel EQ.
- Cheat sheet: the master frequency table covering every common instrument on one page.
- FAQ: the highest-level questions every engineer asks at some point.
EQ Fundamentals: What Every Move Does
Every EQ move falls into one of five categories.
Understanding which category a knob belongs to is what separates EQ that solves problems from EQ that creates new ones.
- High-pass filter (HPF): cuts everything below a set frequency. Used to clean unwanted low end on non-bass sources. The most-used move in any mix.
- Low-pass filter (LPF): cuts everything above a set frequency. Used to soften brittle top end on dull sources, less commonly used than HPF.
- Bell (peak) cut or boost: a curve centered on a chosen frequency, narrowed or widened by Q. The workhorse for surgical work.
- Shelf: raises or lowers everything above (high shelf) or below (low shelf) a frequency. Used for broad tonal shaping like adding air or warmth.
- Dynamic EQ: an EQ band that only acts when the input crosses a threshold. The fix for harshness that comes and goes with performance dynamics.
The universal rule across every source: subtractive first, additive second. Cut what is in the way before boosting what is missing.
Boosting on top of mud or boxiness creates a louder version of the wrong sound. Cuts solve the problem; boosts flatter what is already there.
For Q (bandwidth), the rule is cut narrow, boost wide. Narrow cuts (high Q) remove a specific problem without thinning what surrounds it.
Wide boosts (low Q) flatter the source musically. Anything reversed sounds artificial fast.
EQ for Vocals
Vocals are the most-EQ’d element in any mix because they are the most important.
The settings shift with gender, genre, and the specific singer, but the moves themselves follow a consistent pattern.
General Vocal EQ
Start with a high-pass filter at 80–120 Hz on most lead vocals. Sweep a notch through 200–400 Hz to find boxiness and cut 2–4 dB.
Cut 1–2 dB around 800 Hz to 1 kHz if the vocal sounds nasal. Boost 2–3 dB around 3–5 kHz for presence.
Add a gentle high shelf at 10 kHz for air. The full per-genre walkthrough lives in how to EQ vocals like a pro.
Vocal Cheat Sheet and Female-Specific Moves
For a single-page reference that maps every important vocal frequency band on one chart, the vocal EQ cheat sheet is the working reference.
Female vocals sit higher in the spectrum than male vocals, with fundamentals around 200–250 Hz and sibilance peaking 5–8 kHz; the specific moves are in EQ female vocals.
Dynamic EQ on Vocals
When harshness appears only on loud notes (and never on quiet ones), static EQ cuts hurt the body on the quiet hits.
Dynamic EQ on the harsh band only acts when the harshness arrives, leaving the rest of the vocal untouched.
The full setup is in how to use dynamic EQ on vocals.
Plugin Picks for Vocal EQ
The plugin matters less than the moves.
Still, a few EQs earn their reputation on vocals: FabFilter Pro-Q 3 for surgical work, the various Pultec emulations for additive warmth, and Soothe 2 for dynamic harshness control.
The full roundup with the per-purpose recommendations is in best EQ plugins for vocals.
EQ for Drums
Drum EQ is mostly subtractive.
Each piece of the kit has a ring or boxy band that needs cutting, plus a body band and an attack band that occasionally need boosting.
The ring frequency is unique to each drum and must be swept for.
Kick Drum
High-pass at 30 Hz. Cut 3–6 dB around 250–400 Hz to remove boxiness. Boost 2–4 dB at 50–80 Hz for weight and 2–4 dB at 3–5 kHz for click.
The per-genre variations and the bands that flip for hip-hop versus metal are in kick drum EQ.
Snare Drum
High-pass the bottom mic at 150 Hz. Cut 3–6 dB around 400–500 Hz. Boost 2–4 dB at 200 Hz for body and 3–5 dB at 4–6 kHz for crack.
A gentle high shelf at 10 kHz adds air. The full top-and-bottom mic treatment is in snare EQ settings.
Hi-Hats and Overheads
Hi-hats need a high-pass at 300–500 Hz and a 2–3 dB notch at the harshness band (2–4 kHz). Add 1–3 dB of shimmer at 8–10 kHz only after the harshness is gone.
The full hat-specific treatment is in how to EQ hi-hats.
Overheads use the same logic on a wider scale, with the cymbal-specific bands covered in how to EQ drum overheads.
Toms
Tom EQ centers on the ring notch. Sweep through 300–600 Hz on rack toms or 200–400 Hz on floor toms to find the resonance, then cut 4–6 dB with a high Q.
Add body at 80–120 Hz and attack at 4–6 kHz. The full per-tom map is in how to EQ toms.
The Drum EQ Cheat Sheet
For a single-page reference covering every kit element on one chart, the drum EQ cheat sheet is the kit-wide working reference.
Keep it open while you work and use the per-element posts above when one drum needs the full breakdown.
EQ for Bass
Bass guitar EQ has two distinct halves: the low end, where the bass shares territory with the kick, and the upper mids, where pick attack and finger noise live.
The settings vary widely by playing style and recording method.
Start with a high-pass at 30–50 Hz on a clean DI. Cut 2–4 dB around 200–400 Hz to clear the boxiness that collides with guitars and vocals.
Boost 1–2 dB at 80–100 Hz for warmth (or higher if the kick owns the sub) and 2–3 dB at 800 Hz to 1 kHz for finger or pick definition.
The complete by-style breakdown (fingerstyle, pick, slap, DI versus mic) is in how to EQ bass guitar.
For a single-page chart that summarizes the bass frequency map across playing styles, the bass guitar EQ cheat sheet is the at-a-glance reference.
Use the cheat sheet for fast decisions during the mix and the full post when a tricky bass tone needs more thinking.
EQ for Guitars
Electric and acoustic guitars need very different EQ approaches even though they share the name.
Electric guitars are usually amp-recorded with built-in coloration; acoustic guitars are typically mic’d with the room sound baked in.
Both need surgical cuts in the mid-range and tonal shaping at the edges.
For electric guitar, high-pass at 100 Hz. Cut 3–5 dB around 300–500 Hz for boxiness. Cut 2–3 dB at 2.5–3.5 kHz for harshness on distorted tones.
Add presence at 4–5 kHz only after the harshness is handled. The cabinet-versus-DI choices and the by-genre variations are in how to EQ an electric guitar.
For acoustic guitar, high-pass at 100–150 Hz. Cut 3–4 dB around 300 Hz to remove muddy body resonance.
Cut 1–2 dB at 800 Hz if the guitar sounds boxy. Add 1–3 dB of air at 8–10 kHz with a shelf.
The mic-position-versus-EQ approach and the strumming-versus-fingerpicking adjustments are in EQ acoustic guitar.
EQ for Piano and Strings
Piano and strings cover the widest frequency range of any common instrument, which makes EQ on them both more powerful and more dangerous.
A wrong cut can dull either source quickly; a wrong boost can make it harsh.
Piano EQ depends on the role. A backing piano gets a high-pass at 100 Hz and a 2–3 dB cut around 300 Hz to clear room for vocals and bass.
A featured piano gets a wider, lighter treatment that preserves the full natural range. The full per-role breakdown is in how to EQ piano.
Strings (real or sampled) live in the same range as vocals and need careful EQ to avoid collisions.
High-pass at 150 Hz on most string parts, cut 2–3 dB at 300–500 Hz for boxiness, and add a gentle 1–2 dB shelf at 8 kHz only if the strings sound dull.
The orchestral and pop-string-arrangement specifics are in how to EQ strings.
Mix Bus and Mastering EQ
EQ at the mix bus and mastering stages follows different rules than per-channel EQ.
The moves are smaller (typically 1–3 dB), the Q is wider, and the goals shift from corrective to tonal.
Big surgical cuts belong at the channel, not on the bus.
Mix bus EQ shapes the broad tonal balance of the whole song. A gentle 1–2 dB high shelf adds air.
A wide 1 dB cut around 250–400 Hz clears mud across the entire mix.
The bus EQ moves and the order of operations relative to bus compression are in how to EQ the mix bus.
Mastering EQ is even more conservative. Moves of 0.5–1.5 dB with wide Q across broad bands.
The goal is final tonal balance and matching against reference tracks, not fixing anything that should have been handled in the mix.
The mastering chain placement and the specific moves are in how to EQ your master.
Hardware-style EQs (Pultec, API, Neve emulations) add musical color even at the bus and master stages.
The Pultec EQP-1A in particular has the famous low-end trick of boosting and cutting the same frequency simultaneously for a fat low end.
The full Pultec workflow is in the Pultec EQ guide.
Frequency Cheat Sheet (Every Instrument)
The master cheat sheet. Starting bands for every common source on one page.
Use the table to find your way around fast, and turn to the dedicated post for any source when you want the full per-genre or per-style detail.
| Source | HPF | Mud / box cut | Body boost | Presence / attack | Air |
|---|---|---|---|---|---|
| Lead vocal | 80–120 Hz | 200–400 Hz | 200 Hz | 3–5 kHz | 10 kHz shelf |
| Female vocal | 120–150 Hz | 300–500 Hz | 200–250 Hz | 3–5 kHz | 10–12 kHz |
| Kick | 30 Hz | 250–400 Hz | 50–80 Hz | 3–5 kHz click | — |
| Snare | off (bottom 150 Hz) | 400–500 Hz | 200 Hz | 4–6 kHz crack | 10 kHz |
| Toms | 50–80 Hz | 300–600 Hz ring | 80–120 Hz | 4–6 kHz | — |
| Hi-hats | 300–500 Hz | 2–4 kHz harshness | — | — | 8–10 kHz |
| Overheads | 100–200 Hz | 3–6 kHz harshness | — | — | 10 kHz |
| Bass guitar | 30–50 Hz | 200–400 Hz | 80–100 Hz | 800 Hz–1 kHz | — |
| Electric guitar | 100 Hz | 300–500 Hz | — | 4–5 kHz | — |
| Acoustic guitar | 100–150 Hz | 300 Hz | — | — | 8–10 kHz shelf |
| Piano (backing) | 100 Hz | 300 Hz | — | — | 8–10 kHz light |
| Strings | 150 Hz | 300–500 Hz | — | — | 8 kHz light |
| Mix bus | off | 250–400 Hz (-1 dB) | — | — | 10 kHz shelf (+1) |
| Master | off | — | broad ±0.5–1.5 dB | — | — |
3 Common EQ Mistakes
Three mistakes account for most amateur EQ work that almost sounds right. Each one has a clean fix that comes out of the fundamentals above.
- 1. Boosting before cutting. Adding 4 dB at 200 Hz on a boxy source builds louder boxiness. Cut the mud first. Then decide whether the boost is still needed. Usually it is much smaller than you thought.
- 2. EQ in solo. A source that sounds great in solo often does not sit in the mix. EQ decisions belong in context, with the rest of the song playing. Solo only to find a specific problem frequency, then mute the solo and decide the cut depth in context.
- 3. Trying to fix recording problems with EQ. A muddy recording becomes a muddy EQ’d recording. A harsh source becomes a harsh dynamically-EQ’d source. EQ shapes what is there; it cannot recover what was never captured cleanly. Better recordings beat heavier EQ every time.
Frequently Asked Questions
Short answers to the highest-level questions about EQ across every source.
Should you EQ before or after compression?
Subtractive EQ first, then compression, then additive EQ if needed.
Cutting mud and boxiness before compression lets the compressor react to the wanted content rather than the trash you were going to cut.
Additive EQ after compression shapes the post-compressed signal cleanly without the compressor amplifying boosted bands.
What Q should I use on EQ cuts and boosts?
Cut narrow, boost wide. Narrow Q (high values, Q of 4–8) for surgical cuts at problem frequencies.
Wide Q (low values, Q of 0.5–1.5) for tonal boosts. Reversing the rule produces artificial sounds: wide cuts thin the source, narrow boosts ring like resonant peaks.
How many EQ bands should I use on one channel?
Most sources need three to five EQ moves at most: a high-pass filter, one or two cuts at problem frequencies, and one or two boosts for tone.
More than five bands usually means you are trying to fix something that EQ cannot fix or layering moves that fight each other.
Less is more on individual channels.
When should I use dynamic EQ instead of static EQ?
When the problem comes and goes with performance. Three cases benefit. A harsh band that appears only on loud notes.
A boomy band that appears only on certain words or chords. A sibilant peak that varies across a vocal take.
All three benefit from dynamic EQ that activates only when the problem arrives. Static EQ for consistent issues; dynamic EQ for performance-dependent ones.
Do I need expensive EQ plugins?
No. The stock EQ in any modern DAW (Pro Tools EQ III, Logic Channel EQ, Ableton EQ Eight, Cubase Frequency 2) is fully capable of professional results.
Paid plugins like FabFilter Pro-Q 3, Soothe 2, and the Pultec emulations offer specific workflows or sonic characters, but the moves matter far more than the brand. Workflow beats gear.
Why does my EQ sound worse the more I push it?
Three usual causes. First, boosting before cutting (boosting on top of mud creates louder mud).
Second, EQing in solo instead of in context (solo decisions rarely translate to the full mix).
Third, trying to use EQ to fix recording problems that needed a different mic, position, or take.
Walk back through the fundamentals and check each.
The Bottom Line
EQ is the single most-used tool in any mix. Get the fundamentals right, and the per-source decisions become small.
Cut before you boost. Cut narrow, boost wide. Mix in context.
Use this guide as the cluster-wide map; turn to the dedicated post for any source when you need its full per-genre or per-style detail.
EQ is only ever one stage in a larger chain. On a lead vocal, it feeds into level rides, compression, and effects, all of which the complete vocal mixing guide walks through.
Drums ask the same question at kit scale, and the complete drums mixing guide covers the routing, balance, and glue that surround the tonal moves here.
At the far end of the chain, EQ becomes one of the lightest touches in mastering. The complete mastering guide places it alongside the limiting and metering that finish a record.