Acoustic guitar EQ is different from electric and most people treat it wrong. Here's the cheat sheet I developed over years of recording my own music and how to actually use it.
When I first started recording my own music I made the same mistake most guitarists make. I approached acoustic guitar EQ the same way I approached electric guitar EQ and wondered why everything sounded muddy and cluttered. They are fundamentally different instruments with fundamentally different EQ needs and once that clicked the whole process got a lot simpler.
I am Tony Oso, a guitarist, songwriter, and home studio recordist out of Melbourne, Florida. I have been tracking acoustic guitar for years across everything from soft emotional songs to more rhythmic and percussive parts. This is the cheat sheet I wish I had when I started, built from real sessions rather than theory.
Why Acoustic Guitar EQ Is Different
The electric guitar gets most of its tone from pickups, amplifiers, and processing that naturally roll off a lot of low-end content. What comes out of an electric guitar signal chain is already shaped before you touch EQ.
The acoustic guitar is a hollow resonating body. It produces rich overtones, substantial low-mid content, and a natural bass response that the electric guitar does not have. That full-body resonance is part of what makes an acoustic guitar beautiful to listen to in isolation. It is also what causes the most problems in a mix if you leave it unmanaged. The low-mid buildup competes with bass guitar and kick drum. The body resonance can overwhelm vocals. The natural brightness of the strings can clash with other high-end content.
EQ on an acoustic is mostly about managing that resonance rather than adding something that was not there. You are sculpting what exists, not compensating for what is missing.
The Frequency Map for Acoustic Guitar
Below 80 Hz is rumble, room noise, handling noise, and air conditioning. There is no musical content here worth keeping. This almost always gets a high-pass filter. The exact cutoff point depends on the playing style — for strumming I set it around 90 to 100 Hz, for fingerpicking I stay closer to 80 Hz to preserve more of the natural warmth.
80 to 150 Hz is body resonance and low-end fullness. Some acoustic guitars, particularly cheaper ones or guitars with mahogany bodies, build up in this range in a way that sounds boomy rather than warm. I cut here if the guitar sounds like it has too much low-end weight. If the guitar sounds balanced in this range I leave it alone.
150 to 350 Hz is the muddiness zone for acoustic guitar. This is the range I almost always address. The cardboard, boxy, hollow quality that makes an acoustic guitar sound like it was recorded in a closet usually lives right around 200 to 300 Hz. A cut of 2 to 4 dB here clears it up significantly. Be careful not to go too deep with the cut because this range also contains legitimate warmth and body.
350 to 800 Hz is where fullness and richness live. If your acoustic sounds too thin after the cuts above, a small boost in the lower part of this range around 400 to 500 Hz adds depth and warmth back. A small amount goes a long way. Too much and you are back in mud territory.
800 Hz to 2 kHz is clarity and articulation. Boosting in this range brings out the detail of strumming patterns and individual note definition. This is especially useful when the acoustic is playing a rhythmic role and needs to be clear and present without being harsh.
2 to 5 kHz is presence and sparkle. This is where the guitar starts to shimmer and cut through a mix. For percussive strumming I boost around 3 kHz. For gentle fingerpicking I nudge toward 4 to 5 kHz. This range is what makes the acoustic feel forward and alive in a mix rather than sitting behind everything else.
5 to 12 kHz is air and brightness. A light shelf boost here can make an acoustic recording sound open and airy. If the recording is already harsh or bright skip this entirely. If it sounds closed in and dull a gentle boost above 8 kHz adds that sense of space.
6 to 8 kHz specifically is where harshness lives when strumming gets aggressive. If the top end sounds brittle or painful on harder strumming passes, a gentle narrow dip in this range smooths it out without taking away the air above it.
My Starting Point for Sessions
Here is the bare-bones setting I drop on an acoustic track at the start of every session before I adjust for the specific guitar and song.
High-pass filter at 90 Hz. Cut of 2 to 3 dB at 250 Hz for boxiness. Small boost of 1 to 2 dB at 500 to 700 Hz for body if the guitar sounds thin after the cut. Boost of 1.5 to 2 dB at 3 kHz for presence. Dip of 1 to 2 dB at 6.5 kHz if strumming is aggressive. Light shelf boost of 1 dB at 10 kHz for air if the recording needs it.
From that starting point I adjust based on what I hear in the full mix. The starting point gets me 80 percent of the way there. The remaining 20 percent is listening and responding.
Fingerstyle vs Strumming — Different Approaches
The playing style changes what the EQ needs to do significantly enough that I treat them as separate cases.
For strumming the priorities are controlling the body resonance in the low mids, adding clarity in the upper mids so the rhythmic pattern reads clearly, and managing harshness in the 6 to 8 kHz range when the strumming is energetic. The high-pass filter can sit a little higher around 90 to 100 Hz because the rhythmic energy of strumming does not need as much low-end warmth to feel complete.
For fingerpicking the approach is more delicate. The high-pass filter stays lower around 80 Hz to preserve warmth. The low-mid cut is gentler because fingerpicking naturally produces less body resonance than strumming. The presence boost shifts toward the upper end of the 2 to 5 kHz range to bring out note definition without adding harshness. Air above 10 kHz is more useful here than with strumming because fingerpicked recordings benefit from that sense of openness.
Do not copy settings between strumming and fingerpicking passes on the same song without adjusting. They need different treatment even when recorded on the same guitar in the same session.
Every Guitar EQs Differently
A guitar with a spruce top and rosewood back responds differently than one with a mahogany body. A guitar strung with light gauge strings sounds different than the same guitar with medium gauge. A guitar recorded with a small-diaphragm condenser sounds different than one recorded with a large-diaphragm mic or a DI from a pickup.
The cheat sheet is a starting point. It is based on the physics of how acoustic guitars interact with frequency ranges in general. But your specific guitar, your specific recording setup, and your specific song will require adjustment from that starting point. The more time you spend listening critically to acoustic recordings and comparing them to the settings that produced them, the faster your instincts develop.
Use your ears first. Use the cheat sheet to get there faster. Trust the mix context over how things sound in isolation.
A Few Other Things That Matter
Record it clean before you EQ it. No amount of EQ fixes a poorly recorded acoustic. If the room is too reverberant, if the mic placement is off, if there is handling noise in the recording, address those things at the source. EQ can refine a good recording. It cannot rescue a bad one.
Use small moves. Most of my EQ adjustments on acoustic guitar are 1 to 3 dB. The acoustic guitar is a naturally balanced instrument and dramatic EQ moves usually sound like dramatic EQ moves. Subtlety is almost always right.
EQ in context. Always make your final decisions with the full mix playing. What sounds perfect on a soloed acoustic track often sounds wrong when the bass and drums and vocals come back in. The acoustic needs to coexist with those instruments, not sound great alone.
Compression after EQ. Once the tone is shaped, a little compression helps tame the dynamic peaks that acoustic guitar naturally produces, especially with strumming. EQ first to get the tone right, then compress to control the dynamics. If you want to dig deeper on compression, check out my post on compression here.
If you want to hear what these decisions sound like applied to finished songs, my music is at tonyosomusic.com/music. The acoustic guitar work across the Tony Oso catalog uses exactly this approach. Dancing Free and Where Did You Go are both good reference points for how an acoustic can sit clearly in a mix without fighting everything around it.
If you want to learn even more about EQ, check out these posts: