Acoustic Guitar Series: When to Use a Soundhole Cover?

2025-10-29 08:25:20

Acoustic guitar Series: When to Use a Soundhole Cover?

Introduction

An acoustic guitar produces sound through the vibration of its strings, which resonates within the hollow body of the instrument. The soundhole plays a crucial role in amplifying and projecting this sound. However, there are situations where a soundhole cover (also known as a feedback buster or soundhole plug) can be beneficial.

This article explores the purpose of a soundhole cover, when to use one, and the potential advantages and drawbacks of using it. Whether you're a beginner or an experienced guitarist, understanding when and why to use a soundhole cover can enhance your playing experience in various settings.

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What Is a Soundhole Cover?

A soundhole cover is a device, typically made of rubber, plastic, or wood, that fits snugly into the soundhole of an acoustic guitar. Its primary function is to reduce feedback when playing at high volumes, but it can also alter the guitar’s tonal characteristics and provide other practical benefits.

Types of Soundhole Covers

1. Rubber/Plastic Feedback Busters – The most common type, designed primarily for live performance to prevent feedback.

2. Wooden Plugs – Often used for aesthetic purposes or subtle tonal adjustments.

3. Magnetic Covers – Some models use magnets for easy removal and attachment.

4. Custom Covers – Some players use decorative or branded covers for personalization.

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When to Use a Soundhole Cover?

1. Live Performances with Amplification

The most common use of a soundhole cover is during live performances where the guitar is amplified. When an acoustic guitar is played at high volumes through a PA system or amplifier, the sound from the speakers can re-enter the soundhole, creating a feedback loop. This results in an unpleasant, high-pitched squeal that disrupts the performance.

A soundhole cover blocks external sound waves from entering the guitar’s body, significantly reducing feedback. This is especially useful in loud environments like bars, concert halls, or outdoor stages.

When Not to Use It:

- If you're playing unplugged (no amplification), a soundhole cover is unnecessary and may dampen the natural resonance of the guitar.

- In studio recordings where feedback is controlled, a cover might not be needed unless specifically desired for tonal shaping.

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2. Recording Sessions

In a studio setting, feedback is less of an issue because microphones are placed strategically. However, some engineers and guitarists use soundhole covers to:

- Reduce unwanted resonance when close-miking the guitar.

- Control low-end frequencies that can muddy a mix.

- Experiment with tonal changes (a covered soundhole can produce a slightly more focused, midrange-heavy sound).

When to Avoid It:

- If you're recording in a natural, resonant space, removing the cover allows the guitar’s full tonal character to shine.

- If you're using room mics, the open soundhole contributes to the overall sound.

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3. Practice and Noise Reduction

If you're practicing in a shared living space or late at night, a soundhole cover can slightly reduce volume by limiting the guitar’s resonance. While it won’t make the guitar silent, it can help minimize disturbance.

Alternative Solutions:

- Silent guitars or headphone amps are better for completely quiet practice.

- Stuffing the guitar with foam or fabric can further dampen sound but may affect playability.

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4. Playing in Windy or Outdoor Environments

When playing outdoors, wind can blow across the soundhole, creating unwanted noise. A soundhole cover helps block wind interference, making it useful for beachside gigs or busking.

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5. Tonal Experimentation

Some guitarists use soundhole covers to alter their guitar’s tone. Covering the soundhole reduces bass response and can make the sound more mid-focused, which can be useful in certain musical styles.

Tonal Effects:

- Less bass resonance → tighter, more controlled low end.

- More midrange emphasis → can help cut through a mix.

- Slightly reduced sustain → may be preferable for fast, percussive playing.

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Potential Drawbacks of Using a Soundhole Cover

While soundhole covers are useful, they aren’t perfect for every situation. Some potential downsides include:

1. Reduced Natural Resonance

An acoustic guitar’s soundhole is designed to project sound. Covering it can make the guitar sound less open and airy, which may not be ideal for solo performances or intimate settings.

2. Altered Tone

Some players find that a soundhole cover muffles harmonics and reduces the guitar’s natural brightness. This can be a drawback if you rely on the guitar’s full, resonant sound.

3. Aesthetic Considerations

Some guitarists prefer the look of an open soundhole, especially on high-end acoustic guitars with decorative rosettes. A cover may obscure this feature.

4. Potential Fit Issues

Cheap or poorly designed soundhole covers may fall out during playing or not fit snugly, causing rattling noises. Always test the fit before relying on one in a live setting.

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How to Choose the Right Soundhole Cover

If you decide to use one, consider the following factors:

1. Material – Rubber/plastic is best for feedback reduction; wood offers a more natural look.

2. Fit – Ensure it sits securely without needing excessive force.

3. Removability – Some covers are easier to remove quickly than others.

4. Aesthetics – If appearance matters, choose a cover that complements your guitar.

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Conclusion

A soundhole cover is a simple yet effective tool for acoustic guitarists, particularly in live amplified settings where feedback is a concern. It can also be useful for recording, practice, outdoor playing, and tonal shaping. However, it’s not always necessary—unplugged performances and certain recording scenarios may benefit from an open soundhole.

Ultimately, whether to use a soundhole cover depends on your playing environment, tonal preferences, and practical needs. Experimenting with one can help you determine if it’s a worthwhile addition to your acoustic guitar setup.

By understanding when and why to use a soundhole cover, you can make informed decisions that enhance your playing experience in any musical situation.