User manual FENDER PREFIX PRO BLEND

[. . . ] BASS & TREBLE controls, a semi-parametric CONTOUR control, a NOTCH filter and PHASE switch are included for precise tone shaping and feedback control. You may plug the PREFIXTM PRO BLEND into any instrument-level audio input. THE PICKUP The included Acoustic MatrixTM pickup is made with a proprietary co-polymer sensing material, available exclusively from Fishman. Unlike so called "piezo-film" pickups, our unique copolymer formula is not available from any other manufacturer. [. . . ] Doing so will protect your speakers (and your ears) from loud pops and thumps. 4. 5. Clip / Battery Low LED This light has three distinct functions: 1. Power Up Indicator The Clip/Batt Low LED will flash momentarily when you first turn on the preamp. Some people ask us why this light doesn't stay on, like a conventional pilot light. We feel a steadily lit LED devours too many precious hours of battery life. We prefer instead to conserve the battery with a quick flash of the LED to indicate that the preamp is powered up. Clip Indicator If the LED flashes while you are playing, you are driving the preamp into distortion. Lower the Treble and/or Bass slider until the flashing stops. This indicator may also flash as you approach the end of the battery's useful life. Low Battery Warning When the Clip/Low Batt LED lights steadily, it is time to change the battery. 6. 7. Adjust the BASS and TREBLE controls as desired. Please note that these controls will affect pickup signal only. Double check the PHASE switch position until you find the clearest, feedback free response. Play your guitar as loud as you want. . Volume Affects both microphone and pickup levels. Set this as high as possible (without distorting your amp or mixer) for the cleanest signal. 3 4 P REFIX TM P RO B LEND F ISHMAN P REFIX TM S ERIES Notch and Phase These controls work hand in hand to eliminate low frequency feedback. When you set them properly, you can play your instrument as loud as you like, without feedback. For best results, tune the Notch filter first. SUGGESTED EQ SETTINGS Notch Use the Notch to scoop out the lowest range of feedback, which usually starts at the open low E string and continues up to about the forth fret G# on the same string. This "cavity resonance" feedback can usually be eliminated by setting the Notch control between 12:00 and 2:00 on the dial. You may need to initially coax out low frequency feedback by raising your volume, flipping the phase switch and moving closer to your speakers. Note that in the fully counter-clockwise position, the Notch is effectively off. ANTI-FEEDBACK Refer to page 3. Phase Switch Use the phase switch to control the upper range of low frequency feedback, sometimes call "top resonance". This feedback usually starts at the fifth fret A on the low E string and continues up to about the twelfth fret E on the same string. Flip the Phase switch back and forth until you find the position that subdues this range of feedback. [. . . ] 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. This warranty remains valid only if repairs are performed by FISHMAN. This warranty gives you specific legal rights and you may also have other rights which may vary from state to state. Current Drain: Power Supply: RETURN POLICY To return products to FISHMAN TRANSDUCERS, you must follow these steps. . . [. . . ]