AMUMU SP31 Woody Magnetic Soundhole Pickup

1. Product Overview

The AMUMU SP31 Woody Magnetic Soundhole Pickup is a passive, battery-free single-coil pickup designed to amplify the natural acoustic tone of steel-string guitars. It features a rare earth neodymium magnet and a hand-wound oxygen-free copper coil, housed in a premium beech wood casing. This pickup is engineered for clear, balanced sound reproduction with minimal noise, making it suitable for various musical applications.

Image: The AMUMU SP31 Woody Magnetic Soundhole Pickup, showcasing its wooden casing and the included 1/4'' female jack cable assembly.

2. Key Features

• Clear & Balanced Sound: Utilizes a custom Rare Earth Neodymium Magnet and hand-wound oxygen-free copper coil for low noise and bright, balanced tones.
• Premium Wood Housing: Constructed from solid beech wood, which enhances vibration transmission for a clear, natural acoustic sound.
• Lossless Signal Transmission: Comes with a studio-grade audio cable designed to preserve nearly 99% of the original sound signal.
• Battery-Free Design: High impedance passive pickup requires no external power, offering a simple plug-and-play experience.
• Customized Audio Cable: Includes a 2ft cable with a 1/4" female jack assembly for convenient connection.

3. Compatibility

The AMUMU SP31 pickup is specifically designed for steel-string acoustic guitars with soundholes measuring between 3.82 inches (97 mm) and 4.33 inches (110 mm) in diameter. It is compatible with most 40-41 inch steel-string acoustic guitars.

Important Note:

• NOT compatible with nylon-string guitars.
• NOT compatible with 3/4-size guitars, such as Taylor Baby and Little Martin series.

Image: Diagram illustrating the compatible soundhole diameters (97mm, 100mm, 110mm) for the AMUMU SP31 pickup on an acoustic guitar.

4. Components Included

Your AMUMU SP31 package should contain the following items:

• AMUMU SP31 Woody Magnetic Soundhole Pickup
• 2ft Studio-Grade Audio Cable with 1/4" Female Jack Assembly
• Cable Holders (for internal cable management)

Image: A close-up view of the custom studio-grade audio cable, highlighting its construction with oxygen-free copper, PE material, conductive PVC, and PVC material layers.

5. Installation Guide

5.1. Endpin Jack Installation

For permanent installation, the 1/4" female jack assembly can be mounted to the guitar's endpin. This process requires drilling and internal cable management.

1. Remove the strings: Loosen and remove all guitar strings to access the soundhole and endblock.
2. Drill a 15/32" hole: Carefully drill a 15/32" (approximately 11.9 mm) hole in the guitar's endblock. Ensure the hole is clean and free of debris.
3. Insert and secure the strap button: Remove the strap button from the jack assembly. Insert the jack through the drilled hole from the inside of the guitar. Thread and hand-tighten the strap button onto the jack from the outside until secure.
4. Manage the cable: Use the provided cable holders to secure the pickup cable along the inside of the guitar body. Remove the adhesive backing from the cable holders and place them as needed to prevent the cable from rattling or banging against the guitar's interior.

Image: An internal view of an acoustic guitar body, illustrating the routing of the pickup cable and the installation of the endpin jack.

5.2. Pickup Installation

The SP31 pickup is designed for easy, non-invasive installation into the guitar's soundhole.

1. Position the pickup: Gently slide the pickup into the soundhole, ensuring the "AMUMU" logo faces upwards.
2. Align with strings: Center the pickup beneath the guitar strings, ensuring it is parallel to the bridge.
3. Secure the pickup: The pickup features sponge cushions on its clips. Gently push the pickup until the clips securely grip the edges of the soundhole. Ensure it is stable and does not obstruct string movement.

Image: A sequence of three images demonstrating the step-by-step process of installing the AMUMU SP31 pickup into the soundhole of an acoustic guitar.

Image: The AMUMU SP31 pickup securely installed in the soundhole of an acoustic guitar, ready for use.

6. Operation

The AMUMU SP31 is a passive pickup, meaning it does not require batteries or external power. Once installed, simply connect your guitar cable from the 1/4" female jack assembly to your amplifier, mixer, or audio interface. The pickup will convert the string vibrations into an electrical signal, amplifying your guitar's acoustic sound.

No controls or adjustments are needed on the pickup itself; all tone shaping and volume control will be managed through your connected audio equipment.

7. Care and Maintenance

• Cleaning: Wipe the wooden casing with a soft, dry cloth. Avoid using abrasive cleaners or solvents that could damage the wood finish.
• Storage: When not in use for extended periods, store the pickup in a cool, dry place away from direct sunlight and extreme temperatures.
• Cable Care: Avoid sharp bends or kinks in the audio cable. Coil it loosely when storing to prevent damage to the internal wiring.
• Inspection: Periodically check the pickup and cable for any signs of wear or damage.

8. Troubleshooting

9. Technical Specifications

10. Warranty and Support

For warranty information and customer support, please refer to the official Amumu website or contact their customer service directly. Details regarding product warranty periods and service procedures are typically provided with your purchase or can be found on the manufacturer's official channels.

You can also visit the Amumu Store on Amazon for additional product information and support resources.