6 Effects to Use with an Acoustic Guitar

For many acoustic guitarists, the world of effects is often unexplored! Unlike electric guitarists, they don’t necessarily need effects to play. However, adding effects to an acoustic guitar signal can be incredibly beneficial to stand out in a mix and introduce fresh sonic elements. Shaping the sound of an acoustic guitar requires a different approach compared to an electric guitar. It demands a finer touch to preserve the instrument’s natural richness. Let’s explore some essential effects for enhancing the acoustic guitar signal.

Reverb

Reverb is an essential effect for an acoustic guitar! It’s rare to find a pedalboard without it. Reverb enhances any effects chain, whether used sparingly or generously! For an acoustic guitar, reverb adds power and depth, giving the instrument presence. Adding a touch of reverb to your acoustic guitar sound is akin to allowing a lion to roar!

The key is to find the right settings! Overdoing reverb can be detrimental, especially depending on the venue. Adjust your settings to suit your style, music, venue, and sometimes even a specific song. Read this article to know the differences between reverb and delay.

Chorus

The chorus effect is one of the most commonly used effects among acoustic guitarists. As a pure sound-transforming effect, it’s often one of the first that musicians try!

Chorus duplicates and slightly alters the guitar’s original signal to create a final audio output that sounds like multiple instances of your guitar. When used and configured well, it adds depth and charm to your guitar tone. Chorus is often employed in solos to boost presence. It can make a six-string guitar sound as though it has many more strings—or give the impression that multiple guitarists are playing on stage instead of just one.

Impulse Response (IR Loader)

Often overlooked or unknown, Impulse Responses (IRs) are incredibly useful for acoustic guitar signals. They’re not exactly an effect but rather a filter applied to the original signal. An impulse response captures the acoustic fingerprint of a space, device, or musical instrument. Stored as an audio file (often in .wav format), it can be loaded into a suitable pedal to impart the characteristics contained in the IR file onto the source signal.

This may sound abstract, but here’s a practical explanation: As a guitarist, you’re aware that the dry signal produced by your guitar’s pickup lacks the acoustic character you hear when playing the instrument. Using an Impulse Response file allows you to impart these acoustic qualities back into the signal.

Do you want to play with a dry, lifeless signal or one that retains the natural characteristics of your instrument? Clearly, you need to try Guitar Impulse Responses!

Compressor / Booster

Regardless of the pedal you choose, a compressor or booster will add sustain to your notes. It works by reducing the gap between the loudest and softest notes, creating a more balanced and controlled sound. With a compressor, guitarists can equalize dynamics between strong and soft attacks while extending note duration (sustain).

A compressor doesn’t need to be on all the time. Activate it for specific passages or solos to stand out in the mix! It’s especially appreciated for fingerpicking and fingerstyle playing.

Tremolo

The tremolo effect may seem old-fashioned, but when used wisely, it can significantly enhance an acoustic guitar signal. Tremolo rhythmically and consistently raises and lowers the instrument’s volume. This creates a sense of notes ebbing and flowing through the ambient space.

Tremolo was heavily used in the 1950s and is closely associated with genres like surf music, country, and blues. On slow songs, and when properly configured, it adds a distinctive atmosphere to an acoustic guitar’s signal. However, moderation is key to avoid overdoing it. Balance the settings to find a sweet spot that evokes emotion without being overbearing.

Equalizer (EQ)

An Equalizer (EQ) is a staple on any pedalboard! It’s an essential tool for sculpting your acoustic guitar’s sound. For many guitars, EQ is integrated with the pickup and embedded into the instrument’s body. For acoustic guitars, EQ configuration depends on your preferences and the needs of the song.

The EQ allows you to adjust frequency bands to optimize your sound for the context. Dedicated EQ pedals exist, but they’re often integrated into advanced preamps and DI boxes. If you’re considering investing in multiple devices, compare different products to find one that combines various sound-shaping features.

Bonus Effects

The effects and methods mentioned above are great starting points, but experimentation is always encouraged. To go further, you might try:

• A DI box or preamp
• Delay
• Pitch shifter or octaver
• The 4-cable method

Some acoustic guitarists even experiment with overdrive. While typically associated with electric guitars, overdrive can work for acoustics in small doses. However, remember that saturation effects have a more pronounced impact on electric guitars. An acoustic guitarist is unlikely to replace an electric player’s role—so don’t forget your place in the group!

When selecting and configuring effects for an acoustic guitar, always aim to enhance the instrument’s organic qualities rather than mask them. The key to success lies in subtlety, ensuring the signal has presence without going overboard. Remember that as a musician, you define your sound! What works for you might not suit another guitarist, and vice versa. Ultimately, the goal is to enjoy the benefits these effects bring to your guitar’s signal without compromising its natural beauty.