Acoustic Guitar Amplification: Pickups, Preamps & PA Guide

# Acoustic Guitar Amplification Guide: Pickups, Preamps, and PA Integration

Getting the best sound from your acoustic guitar when amplified requires a thoughtful approach to pickups, preamps, and PA integration. A well-designed amplification system can bring out the natural tone of your instrument, while a poorly designed one can result in a thin, harsh, or unnatural sound.

What Pickup Type is Right for You?

Undersaddle Piezo: This is the most common factory-installed pickup. Located under the saddle, it senses string vibration directly, producing a bright, consistent sound with great feedback rejection. However, it can sound slightly 'quacky' or artificial at high volumes.

Soundboard Transducer: This pickup adheres to the inside of the top, sensing body vibration, and produces a warmer, more natural sound. However, it's more prone to feedback.

Magnetic Soundhole Pickup: This pickup looks like a humbucker in the soundhole and produces a rich, warm tone. It's easy to install and remove, but it may not sound as acoustic as body sensors.

Internal Microphone: This pickup captures the true acoustic sound, producing an incredible natural tone. However, it's extremely sensitive to feedback and rarely suitable for loud live environments.

Hybrid Systems: These systems combine piezo and microphone or piezo and transducer, allowing for optimal tone per environment. Examples include Taylor's Expression System and similar.

Choosing the Right Preamp

Onboard Preamp: Most production instruments include these preamps, which are convenient but can vary in quality.

External DI Box: Placing a DI box between the guitar and PA can significantly improve the signal quality, even with a basic onboard preamp.

Acoustic Preamp Pedal: Dedicated boxes like Fishman Aura and LR Baggs Venue add EQ, effects, and often imaging to restore the acoustic sound digitally.

Cable to PA: Best Practices

Run a quality instrument cable (PGL Nylon Braided) from your guitar to the DI or preamp, then XLR to the board. Keep cable runs short where possible to minimize signal loss.

Managing Feedback

Feedback happens when the PA output re-enters the pickup. Prevention involves notch EQing the problem frequencies, using a feedback suppressor, angling away from monitors, and managing stage volume.

Frequently Asked Questions

Q: What's the best pickup type for a beginner? A: For beginners, undersaddle piezo pickups are a great starting point, offering a bright, consistent sound with great feedback rejection.

Q: Can I use a magnetic soundhole pickup with a loud live setup? A: While magnetic soundhole pickups produce a rich, warm tone, they may not be the best choice for loud live environments due to their sensitivity to feedback.

Q: How do I prevent feedback in my live setup? A: To prevent feedback, notch EQ the problem frequencies, use a feedback suppressor, angle away from monitors, and manage stage volume.

Related Reading

• [Guitar Cable Buying Guide: What Every Guitarist Needs](/knowledge-hub/guitar-cable-buying-guide)
• [Guitar Setup Checklist for Live Stage Performance](/knowledge-hub/how-to-set-up-guitar-for-live-stage)

For more on this topic, see our <a href="/knowledge-hub/live-music-guitar-tone-guide">live guitar tone guide</a> guide.

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