Fishman prefix pro blend инструкция

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Summary of Contents for Fishman PREFIX PRO BLEND

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User Guide

User Guide

Prefix Pro Blend

Acoustic Guitar System

Warning! We strongly recommend that you familiarize yourself with the

preamp’s controls before you attempt to perform with this system.
Failure to do so can produce painful acoustic feedback (see Quick Start
on page 3). Please take a few minutes to read this guide and familiarize
yourself with the Pro Blend’s controls.

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Stereo Blender

Stereo Blender

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Thank you for choosing a Fishman equipped instrument. Our goal is to provide you
with the finest acoustic amplification products available-systems that simply let you
sound your best. With our long-standing commitment to quality, you can feel confi­dent that your Fishman gear will provide great sound and trouble free performance
for years to come.

Your satisfaction is very important to us. If you have any questions, please contact
us on the web at tech@fishman.com; or by telephone at 978-988-9665.

Featured for the Pro Blend is the acclaimed Acoustic Matrix under-saddle pickup. It
delivers a clear, articulate sound with emphasis on string definition and attack. To
compliment and contrast this pickup, a miniature electret microphone (mounted to
the underside of the preamp chassis) captures the guitar’s elusive natural ambi­ence and sound chamber resonance. Blend the pickup and Microphone together for
a powerful and cohesive acoustic guitar tone that is deeper and more «filled out»,
than the sound of either the microphone or pickup alone.

The Prefix Pro Blend preamp module incorporates a unique flip-top battery compart­ment for easy access. Levels are set by the master volume and blend controls.
Traditional shelving-style bass & treble, plus a semi-parametric «Contour» EQ are
included so you can shape your guitar’s tone exactly to taste. To complete the
package, we include a phase switch and an adjustable notch filter, both essential for
fighting feedback.

THE PICKUP

The system’s under-saddle pickup is the industry standard Fishman Acoustic
Matrix. It is made with Fishman’s exclusive co-polymer sensing material. This pro­prietary material reproduces your acoustic guitar sound with a sensitivity and
dynamic range that surpasses all other known materials (including piezo-ceramic
and so called «piezo-film» pickups).

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2

SER

SER

G

G

UIDE

UIDE

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U

At the heart of the pickup is a multi-layer sandwich of co-polymer strips. These
strips sense motion across the entire length of the saddle for unparalleled perfor­mance. Compared ceramic pickups with individual elements, the Acoustic Matrix’
«unitary» co-polymer design provides a more natural and balanced response, with
sensitivity to both the strings and the soundboard. The transducer is fully enclosed
in a shielded foil wrap for dead quiet performance and total EMI noise rejection.

THE MICROPHONE

This quality electret-condenser microphone will provide very high level sound repro­duction before feedback when used in conjunction with the unit’s Phase, Notch and
Contour EQ (see page x). Conveniently shock-mounted to the underside of the pre­amp chassis, the microphone is strategically isolated inside the instrument. For
stage use, the Microphone’s interior location affords you unprecedented freedom of
movement as well as minimal bleed through from other instruments.

QUICK START

We recommend that you preset the system EQ to locate and eliminate microphone

feedback before you mix in the under-saddle pickup.

1. Set all controls as follows:

2. Slowly increase the volume and play the notes from the open low E, up to the

•

Notch and Volume fully counter-clockwise

•

All EQ sliders at center position

•

Blend slider at lowest position (B = microphone)

fourth fret G sharp until the instrument starts to rumble or howl with feedback on
one or more of these notes. Adjust the Notch control until this feedback is elimi­nated (usually between one and two o’clock on the dial).

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3

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3. Increase the volume some more and play (on the low E string) the fifth fret A
and above. Flip the phase switch to the position that eliminates feedback in this
region.

4. Slowly increase the Volume again, until you start to hear a high squeal.

5. Lower the Contour slider all the way down and adjust the Frequency slider until

the squealy feedback is eliminated. Raise the Contour slider (if possible) to just
below the threshold of feedback.

6. Move the Blend slider up to mix in the pickup signal (A).

7. Adjust the Bass and Treble controls as desired. Note that these controls do not

affect the microphone signal.

8. Play your guitar as loud as you like.

Stereo Blender

Stereo Blender

See diagram on page 9

SETUP

Battery Compartment

Pull the small tab at the top of
the Onboard Blender™ toward
you. The body of the preamp
will swing out, revealing the
battery compartment. Observe
the polarity marks on the bat­tery clip and install a fresh 9V
alkaline battery accordingly.

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Summary of Contents for Fishman PREFIX PRO BLEND

• CONTROLS Volume Control This is a master volume control for both the pickup and the microphone. Set this as high as possible (without distorting your amp or mixer) for the cleanest signal. Notch and Phase These controls work hand in hand to suppress two adjacent ranges of acoustic feedback. When you set them properly, you can play your instrument as loud as you like, feedback free. Notch Tune the Notch filter to scoop out the lowest range of feedback when you play bass notes between the open low E string and (up to and including) the forth fret

• U U SER SER G G UIDE UIDE SUGGESTED EQ SETTINGS Anti-feedback See Quick Start on Page 3 Brilliance If you are playing through a limited range amplifier (like an electric guitar amp) or have dead strings on the instrument, you can brighten up your sound by setting the Frequency knob all the way to the right and raising the Contour (level) slider to taste. If you plan to play at high stage volume levels, dial in more pickup than microphone to avoid feedback. 9 9
  

• 3. Increase the volume some more and play (on the low E string) the fifth fret A and above. Flip the phase switch to the position that eliminates feedback in this region. 4. Slowly increase the Volume again, until you start to hear a high squeal. 5. Lower the Contour slider all the way down and adjust the Frequency slider until the squealy feedback is eliminated. Raise the Contour slider (if possible) to just below the threshold of feedback. 6. Move the Blend slider up to mix in the pickup signal (A). 7. Adjust the Bass and Treble controls

• SPECIFICATIONS Nominal Input Level: -20 dBV Input Overload: (20 Hz — 20 kHz)-2 dBV Pickup Input Impedance: 20 M Ohms Output Impedance: Less than 3.5 k Ohms Nominal Output Level: -12 dBV THD: Less than .04 %, -20 dBV input Signal to Noise Ratio: 77 dB (A weighted referred to nominal -20 dBV input) Current Drain: Less than 4 mA Power Supply: 9V alkaline battery (estimated 140 hours continuous use with low battery indicator at 6.5V) Notch Filter Range: 20Hz

• Contour EQ The Contour slider and the Frequency knob make up this EQ. The Frequency knob lets you tune in on the specific range of sounds that you can boost/cut with the Contour (level) slider. With the Contour EQ you can boost or cut a wide range of frequencies, from gutsy low midrange (250 Hz) to brilliant high treble (10 kHz). Often your instrument will benefit from a slight midrange cut. To cut mids, boost the Contour c

• The Fishman Prefix Pro Blend is warranted to function for a period of One (1) Year from the date of purchase. If the unit fails to function properly within the warranty period, free repair and the option of replacement or refund in the event that Fishman is unable to make repair are Fishman’s only obligations. This warranty does not cover any consequential damages or damage to the unit due to misuse, accident, or neglect. Fishman retains the right to make such determination on the basis of factory inspec

• Suggested EQ Settings Cont’d … Mid-Cut You can scoop out harsh midrange by setting the Frequency knob at about 12:00 and the Contour (level) slider cut to taste below the center detent. Often the desired mid-cut will fall into the same frequency range as poten- tial microphone feedback. You can also cut midrange (pickup only) by boosting the BASS and TREBLE slid- ers to realize an «implied» mid-cut at 800 Hz. Fingerstyle This setting will add fullness to the bass and definition to the treble.

• Thank you for choosing a Fishman equipped instrument. Our goal is to provide you with the finest acoustic amplification products available-systems that simply let you sound your best. With our long-standing commitment to quality, you can feel confi- dent that your Fishman gear will provide great sound and trouble free performance for years to come. Your satisfaction is very important to us. If you have any questions, please contact us on the web at [email protected]; or by telephone at 978-988-9665. Featured for the Pro Blend is the acclaimed Acoustic Matrix under-

• Lower Feedback Range (E to G#) Upper Feedback Range (A and above) 7 7 U U SER SER G G UIDE UIDE
  

• Microphone Trim Control A small circular potentiometer is located on the side of the preamp that faces the back of the guitar. This control can be accessed by opening the battery compart- ment. Set the Blend slider to the center position and with a small slotted screwdriv- er and adjust the Trim Control until both the microphone and pickup levels are bal- anced to your taste. Endpin Jack When you plug into the endpin jack, the Pref

• At the heart of the pickup is a multi-layer sandwich of co-polymer strips. These strips sense motion across the entire length of the saddle for unparalleled perfor- mance. Compared ceramic pickups with individual elements, the Acoustic Matrix’ «unitary» co-polymer design provides a more natural and balanced response, with sensitivity to both the strings and the soundboard. The transducer is fully enclosed in a shielded foil wrap for dead quiet performance and total EMI noise rejection. THE MICROPHONE This quality electret-condens