Piezo Pickups vs Acoustic Pickups: Understanding the Differences

For any acoustic guitar enthusiast, understanding the different types of pickups available and their functions is crucial for achieving the desired sound. This article will explore the key differences between piezo pickups and acoustic pickups, along with other types of pickups commonly used in acoustic guitars. Whether you're a seasoned musician or a beginner, this guide will help you make an informed decision when choosing the right pickup for your acoustic instrument.

Piezo Pickups: Converting Vibration to Voltage

Piezo pickups are a type of acoustic pickup that convert physical vibration into voltage. These pickups are popular in both electric and acoustic guitar configurations. The primary components of a piezo pickup include piezo crystals, which are embedded in nodes. These nodes are typically adhered to the top of the instrument and detect vibrations directly on the surface of the guitar. The detected vibrations are then converted into electrical charges. The signal output from the piezo pickup is then sent to an amplifier or preamp, where it can be further processed.

Types of Acoustic Guitar Pickups

Acoustic guitars can be equipped with various types of pickups to enhance their sound. Let's take a closer look at the three main types:

1. Piezo Pickups

Piezo pickups are particularly effective when it comes to capturing the natural sound of the acoustic guitar. They are typically mounted on the bridge or under the bridge saddle. The under-saddle location is ideal as it captures the highest vibration areas of the guitar, leading to a clear and detailed sound. Piezo pickups work well for both nylon and steel-string acoustic guitars. However, they are generally more advantageous for steel-string guitars due to their lower output compared to magnetic pickups.

2. Magnetic Pickups

Magnetic pickups are commonly found in electric guitars, but they can also be used with acoustic guitars. These pickups use a magnetic field to detect the vibrations of the guitar strings. They work well with steel-string guitars but are not compatible with nylon-string guitars. Due to their magnetic nature, magnetic pickups can behave differently when used on acoustic guitars without a fiduciary (soundboard) to dampen the sound. This can lead to a muted and less balanced sound, especially if the guitar has nylon strings. Hence, magnetic pickups are less commonly used in acoustic guitars compared to piezo pickups.

3. Microphone Pickups

Microphone pickups, also known as condenser microphones, are small microphones that are mounted to the body of the acoustic guitar. These pickups capture sound waves directly from the guitar body, providing a more natural and detailed sound. They are less invasive when installed because they do not require direct contact with the instrument's elements. However, they can be more sensitive to ambient noise and room acoustics.

Choosing the Right Pickup for Your Acoustic Guitar

When choosing a pickup for your acoustic guitar, it's essential to consider your playing style and the type of sound you want to achieve. Piezo pickups are ideal for those who want a clear and detailed sound, especially on steel-string guitars. Magnetic pickups are better suited for players who prefer a warmer, more natural sound with steel strings. Microphone pickups offer a natural sound but can be more sensitive to room conditions and are less common in acoustic guitars.

Considerations for Advanced Players

For advanced players, it's important to consider the quality and price of the pickup. While budget pickups may suffice for basic needs, high-end piezo pickups from brands like Bartolini or Fishman can provide exceptional sound quality and flexibility. When investing in an expensive acoustic guitar, it's smart to ensure that the included pickup meets your expectations and enhances the overall performance of the instrument.

Understanding the differences between piezo pickups and acoustic pickups can help you make better choices when outfitting your acoustic guitar. Remember that each type of pickup has its strengths and weaknesses, and the right choice depends on your specific needs and preferences. Whether you're a seasoned musician or a beginner, investing time in learning about these options will undoubtedly help you achieve the perfect sound for your acoustic guitar.