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Summary of Contents for Fishman Blender
- Page 1 WE STRONGLY RECOMMEND THAT YOU FAMILIARIZE YOURSELF WITH THE PREAMP CONTROLS BEFORE YOU ATTEMPT TO PERFORM WITH THE ONBOARD BLENDER. FAILURE TO DO SO COULD RESULT IN WAVES OF EAR-SPLITTING FEEDBACK AT HIGH LEVELS. (see Quick Start on page 3.)
- Page 2 Please read these instructions carefully. If you have any questions or problems, please call our CUSTOMER SERVICE LINE at (978) 988-9665. The ONBOARD BLENDER™ is a guitar mounted preamp that combines the sounds from a supplied FISHMAN ACOUSTIC MATRIX™ under-saddle pickup and a preamp mounted miniature electret condenser microphone.
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Page 3: Quick Start
To successfully combine microphone and pickup signals, it is best to start by presetting the microphone EQ to control feedback, then mixing in the pickup. The PREFIX™ ONBOARD BLENDER™ features three ways to control feedback; a PHASE switch, NOTCH filter and semi-parametric CONTOUR controls. - Page 4 ENDPIN JACK The ONBOARD BLENDER™ has no ON/OFF switch. It is turned on only when an instrument cable is plugged into the endpin jack. To conserve the battery, remove the instrument cable from the endpin jack when the unit is not being used.
- Page 5 ACOUSTIC GUITAR SYSTEM NOTCH FILTER is effectively off in the full counter-clockwise position. VOLUME CONTROL The VOLUME control affects both microphone and pickup. Goes from very quiet to very LOUD. BASS CONTROL This is a boost/cut shelving tone control. This control affects the pickup signal only.
- Page 6 FISHMAN PREFIX™ ONBOARD BLENDER SUGGESTED EQ SETTINGS ANTI-FEEDBACK LOUD 50 Hz 900 Hz QUIET Refer to page 3. PHASE BATTERY PICKUP BRILLIANCE If you are playing through an electric LOUD 50 Hz 900 Hz QUIET guitar amplifier or have dead strings on...
- Page 7 ACOUSTIC GUITAR SYSTEM MID CUT You can scoop out harsh midrange by setting the FREQUENCY slider slightly above center with the CONTOUR Level cut to taste below the center detent. LOUD 50 Hz 900 Hz QUIET Often the desired mid-cut will fall into the same frequency range as potential microphone feedback.
- Page 8 FISHMAN PREFIX™ ONBOARD BLENDER Phase is the relationship between two signals or soundwaves originating from the same instrument. For our purposes, phase relationships are expressed as being either "in phase" or "out of phase". In phase tends to enhance, while out of phase tends to sup- press the natural characteristics and acoustic tendencies of an instrument.
- Page 9 ACOUSTIC GUITAR SYSTEM WHY DO I NEED A PHASE SWITCH ? The phase switch is useful for two reasons: 1. Due to the interactive and changing nature of phase, acoustic amplification depends on maintaining optimum phase relationships between amplified instruments, sound systems and venues. 2.
- Page 10 17 ’ 22’ 7" DISTANCE: 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.
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Page 11: Specifications
± 12 dB at 60 Hz ± 3 dB at 350 Hz ± 12 dB at 10 kHz ± 3 dB at 2.4 kHz ± 12dB (adjustable from 250 Hz to 10 kHz) Q = 0.5 PICKUP ONLY ONBOARD BLENDER... -
Page 12: Limited Warranty
FISHMAN retains the right to make such determination on the basis of factory inspection. Products returned to FISHMAN for repair or replacement must be shipped in accordance with the Return Policy, as follows.