User manual FISHMAN PREFIX PREMIUM BLEND

[. . . ] Before you go onstage with the Prefix Premium Blend, get familiar with the preamp's antifeedback features. More Bass Less Bass We recommend that you preset the system EQ to locate and eliminate microphone feedback before you mix in the under-saddle pickup. Set all controls as follows: · Notch and Volume fully counter-clockwise · All EQ sliders at center position · Blend slider at full left position · Turn off the Tuner 2. Slowly increase the volume and play the notes from the open low E, up to the fourth fret G # 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). [. . . ] The Premium Blend's 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. With the flick of a switch, you can choose between stereo or mono signal paths for the system's pickup and microphone. This feature expands your options for routing both signals. To complete the package, we include a phase switch and an adjustable notch filter, both essential for fighting feedback. Endpin Jack When you plug into the endpin jack, the Prefix Premium BlendTM 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. THE PICKUP The system's under-saddle pickup is the industry standard Fishman Acoustic MatrixTM. It is made with our proprietary co-polymer sensing material which reproduces your acoustic guitar sound with a sensitivity and dynamic range that surpasses all other pickups. At the heart of the pickup is a multi-layer stack of co-polymer strips that sense motion across the entire length of the saddle for unparalleled performance. The Acoustic Matrix's "unitary" co-polymer design provides a natural and balanced response, with sensitivity to both the strings and the soundboard. The transducer is fully enclosed in a shielded foil wrap for quiet performance and total EMI noise rejection. CONTROLS Tuner Depress the tuner button to turn the circuit on and off. This digital chromatic tuner accommodates all standard and alternate tunings. For your convenience, the tuner button also acts as a mute switch for the guitar when you are plugged in. The tuner circuit devours battery power, so turn it off when you finish tuning. You can also turn on the tuner if the guitar is un-plugged. It will automatically shut down after about 30 seconds at idle to conserve battery power. The "in tune" indicator will flash several times before tuner shuts down. Note that the tuner is calibrated to A = 440. 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 pages 7-8). [. . . ] To cut mids, boost the Contour control and then sweep the Frequency control until you find the band of frequencies that are brash and nasal sounding (usually around the center of the Frequency slider's travel). Then move the Contour slider below its detent to taste. Treble A boost here will help to "cut through the mix". Conversely, cutting the Treble will mellow and subdue your amplified tone. [. . . ]