Fishman Prefix Plus Guide

Fishman Prefix Plus Preamplifier manual cover

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Fishman Prefix Plus Preamplifier Specification

The Fishman Prefix Plus Preamplifier is a sophisticated onboard audio solution designed for acoustic guitarists seeking precise tonal control and superior sound quality. It features an integrated design that seamlessly fits into the guitar's body, providing a high level of convenience and performance. The preamplifier incorporates advanced electronics, including a unique, semi-parametric EQ that allows fine-tuning of mid-range frequencies, enabling musicians to tailor their sound with precision. It also includes a notch filter to effectively eliminate feedback, a crucial feature for live performances.

The Prefix Plus offers a built-in chromatic tuner with an LED display, ensuring accurate tuning with ease. It provides comprehensive control over bass, treble, and brilliance, allowing for a wide range of tonal possibilities. The unit is powered by a 9V battery, ensuring long-lasting performance, and features a low battery indicator to prevent unexpected power loss during use. The preamp also includes a phase switch, which helps in optimizing the sound when used in conjunction with external amplification systems.

Connectivity is enhanced with both ¼ inch and XLR outputs, allowing for versatile interfacing with a variety of audio equipment. The device's design ensures minimal alteration to the guitar's acoustic properties, maintaining the instrument's natural sound while enhancing its amplified output. The Fishman Prefix Plus Preamplifier is engineered for durability and reliability, making it an ideal choice for professional musicians who demand consistent, high-quality performance from their equipment.

Fishman Prefix Plus Preamplifier F.A.Q.

How do I properly install the Fishman Prefix Plus Preamplifier in my acoustic guitar?

To install the Fishman Prefix Plus Preamplifier, ensure that your guitar has a pre-cut slot for the preamp. Remove the battery compartment cover, insert a 9V battery, and slide the preamp into the slot until it clicks into place. Secure it using the provided screws, and connect the pickup to the preamp.

What is the best way to set the EQ on the Fishman Prefix Plus for live performances?

For live performances, start with a flat EQ setting (all knobs at 12 o'clock). Adjust the bass and treble according to the room acoustics and your guitar's natural sound. Use the midrange control to cut or boost frequencies that may cause feedback.

Why is there no sound coming from my Fishman Prefix Plus Preamplifier?

Check if the battery is properly installed and charged. Ensure the volume is turned up and the output jack is securely connected. If the problem persists, inspect the wiring and connections inside the guitar for any loose or damaged parts.

How can I reduce feedback when using the Fishman Prefix Plus Preamplifier?

Use the notch filter to eliminate feedback-prone frequencies. Adjust the phase switch to the position that reduces feedback the most. Position yourself away from speakers and reduce the midrange frequencies to help control feedback in live settings.

What maintenance is required for the Fishman Prefix Plus Preamplifier?

Regularly check the battery level and replace as needed. Clean the preamp faceplate with a soft, dry cloth. Inspect the connections and wiring periodically to ensure they are secure and free from corrosion or damage.

How do I use the notch filter on the Fishman Prefix Plus Preamplifier?

To use the notch filter, first identify the frequency that is causing feedback. Slowly turn the notch filter control until the feedback is reduced. This control helps in eliminating specific problematic frequencies without affecting the overall tone.

Can I use rechargeable batteries with the Fishman Prefix Plus Preamplifier?

Yes, rechargeable 9V batteries can be used. However, ensure they are fully charged before use, and be aware that they may not last as long as standard alkaline batteries. Regularly check battery levels to avoid unexpected power loss.

What should I do if the controls on my Fishman Prefix Plus Preamplifier are not responding?

First, check the battery to ensure it has sufficient power. If the issue persists, inspect the connections to ensure they are not loose or damaged. If necessary, consult a professional technician for further diagnosis.

How do I adjust the volume on the Fishman Prefix Plus Preamplifier?

Use the volume slider on the preamp's face to adjust the output level. Start with a moderate level and increase or decrease as needed to match your playing environment and prevent distortion or feedback.

Is it possible to replace the Fishman Prefix Plus Preamplifier battery without removing the strings?

Yes, the battery compartment is designed for easy access. You can slide out the battery compartment without needing to remove or adjust the guitar strings, allowing for quick battery changes.