User manual FISHMAN PREFIX PRO BLEND

[. . . ] 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. [. . . ] Slowly increase the Volume again, until you start to hear a high squeal. 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. Move the Blend slider up to mix in the pickup signal (A). Adjust the Bass and Treble controls as desired. Note that these controls do not affect the microphone signal. See diagram on page 9 SETUP Battery Compartment Pull the small tab at the top of the Onboard BlenderTM 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. 4 USER GUIDE 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 compartment. Set the Blend slider to the center position and with a small slotted screwdriver and adjust the Trim Control until both the microphone and pickup levels are balanced to your taste. Endpin Jack When you plug into the endpin jack, the Prefix Pro Blend switches on. To conserve the battery, remove the instrument cable from the endpin jack when the system is not being used. It is a good idea to turn down your amp or mixer input before you plug into the endpin jack. Doing so will protect your speakers (and your ears) from loud pops. Battery Low LED Plug into the endpin jack and the Low Battery light will flash momentarily, indicating that the power is on. When the Low Battery light stays on, it is time to change the battery. 5 Prefix - Stereo Blender 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 G sharp on the same string. Low frequency "cavity resonance" feedback can usually be squelched by setting the Notch control between one o'clock and two o'clock on the dial. Note that for instruments that do not suffer from low frequency feedback, the notch can be defeated by moving the dial to the Off (seven o'clock) position. Phase Switch Flip the Phase switch back and forth until you find the position that sounds best and subdues mid-bass feedback. Mid-bass feedback generally occurs when you play bass notes above the fourth fret G sharp on the low E string. Bass This control affects the under-saddle pickup signal only!A Boost here will add depth and weight to the sound the instrument. 6 USER GUIDE Lower Feedback Range (E to G#) Upper Feedback Range (A and above) 7 Prefix - Stereo Blender 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. [. . . ] 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. Return Policy To return products to Fishman Transducers, you must follow these steps. . . [. . . ]