Fishman Blender quick start Heres why, Using the Notch Filter to Reduce Feedback

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FISHMAN PREFIX™ ONBOARD BLENDER

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Here's why:

A typical guitar has a cavity resonance of about 100 Hz. This is the frequency that generally feeds back when a mic'ed guitar and speaker are in phase.

100 Hz has a wavelength of about 11 feet.

Phase inverts 180° for every 1/2 a frequency's wavelength. In this case, 1/2 the wavelength is about 5 1/2 feet.

If you set your PHASE switch to eliminate cavity resonance (out of phase) and then move 5 1/2 feet towards or away from the speaker, you will effectively put the mic'ed guitar/speaker relationship at 100 Hz back in phase; in the line of fire for low frequency feedback.

PHASE INVERTED 180°

PHASE INVERTED 180°

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DISTANCE:

5' 7"

 

11' 4"

 

17 '

 

22' 7"

 

 

 

The PHASE switch on the ONBOARD BLENDER™ in effect electronically "moves" your instrument's position relative to the speaker by inverting the phase 180° every time you flip it.

B. USING THE NOTCH FILTER TO REDUCE FEEDBACK

Notching out instrument cavity resonance will eliminate the low frequency feed- back problem completely. The advantages to using notching equalization are:

•The physical distance from the speaker will no longer be a factor for potential low frequency feedback.

•The mic'ed instrument/speaker can remain in phase, maintaining a more nat- ural and balanced response.

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Contents Onboard Blender Pickup MicrophoneAcoustic Guitar System Quick StartPreamp Functions Battery CompartmentBattery LOW LED Microphone Trim ControlBass Control Volume ControlPhase Switch Treble ControlANTI-FEEDBACK Suggested EQ SettingsBrilliance MID CUT FingerstylePhase What is PHASE?OUT of Phase High Volume Levels WHY do I Need a Phase Switch ?LOW Volume Amplification Using the Phase Switch to Reduce FeedbackUsing the Notch Filter to Reduce Feedback Heres whySpecifications THDLimited Warranty Return Policy

Blender specifications

The Fishman Blender is an innovative acoustic instrument designed to elevate the tone and performance of musicians across various genres. This advanced pickup system is specifically crafted for acoustic guitars, offering unparalleled versatility and sound quality. One of the main features of the Fishman Blender is its unique combination of the renowned Fishman Acoustic Matrix undersaddle pickup and an internal microphone. This dual-source setup allows musicians to blend the direct sound from the pickup with the natural resonance captured by the microphone, resulting in a rich and full-bodied tone that emulates the true character of the guitar.

The Fishman Blender utilizes sophisticated technologies to enhance the end-user experience. The onboard preamp includes an intuitive blending control that allows players to adjust the mix of the pickup and microphone signals seamlessly during live performances. This feature offers great flexibility, enabling musicians to cater the sound to their preferences or environmental conditions in real-time. Additionally, the preamp includes a built-in EQ, providing further control over the audio output. This allows users to shape their sound by adjusting bass, midrange, and treble frequencies according to their needs.

One of the standout characteristics of the Fishman Blender is its exceptional feedback rejection. Thanks to its balanced design and intelligent positioning, it effectively minimizes unwanted feedback during amplified performances, a common challenge for acoustic musicians. The Fishman Blender is also engineered for easy installation, enabling guitarists to retrofit their instruments without major modifications or damage.

Another notable characteristic is its compact size and lightweight construction, making the system easy to handle. The Fishman Blender is powered by a standard 9-volt battery, ensuring reliable performance and longevity during extended playing sessions. The durability of the materials used in the construction of the pickup and preamp ensures that the Fishman Blender meets the demands of rigorous touring musicians.

Overall, the Fishman Blender stands out as a versatile, high-performance acoustic pickup system that effectively captures the essence of an acoustic guitar. Its combination of cutting-edge technology, user-friendly features, and impressive sound quality makes it an ideal choice for both amateur and professional musicians looking to enhance their acoustic performances.
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