Fishman_Prefix_Pro_Manual 电路图.pdf

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1、TM PROPRO PREFIXPREFIXPREFIX US E RSGU I D E RadioFans.CN 收音机爱 好者资料库 This fine instrument is equipped with a FISHMAN PREFIX PRO ACOUSTIC GUITAR SYSTEM. Please read these instructions carefully. If you have any questions or problems, please call our CUSTOMER SERVICE LINE at (978) 988-9665. The PREFIX

2、 PRO is an instrument-mounted pickup / preamp system that offers total control of your amplified guitar sound. The Pickup The PREFIX PRO ACOUSTIC GUITAR SYSTEM includes a FISHMAN ACOUSTIC MATRIX pickup; made with a unique co-polymer sensing material, available exclusively from FISHMAN. This technolo

3、gy is not available from any other manufacturer. The sensing material exhibits a sensitivity and dynamic range that far surpasses all other known sens- ing materials. The ACOUSTIC MATRIX transducer is a fully EMI shielded, multi-layer sandwich of co-polymer strips that run the length of the pickup.

4、This design allows the pickup to sense the motion of the entire saddle length, providing superb string to string balance, as well as sensitivity to both the strings and top of the instrument. The Preamp The PREFIX PRO preamp module incorporates a unique flip-top battery compartment for easy access.

5、Level is set by the VOLUME con- trol. Shelving BASS & TREBLE and resonant style MIDDLE & BRIL- LIANCE controls are included for precise tone-shaping. A LOW BAT- TERY indicator lets you know when its time to change the battery. FI S H M A NPR E F I X PR O 2 RadioFans.CN 收音机爱 好者资料库 AC O U S T I CGU I

6、T A RSY S T E M 3 PREAMPFUNCTIONS BATTERY COMPARTMENT Pull the small tab at the top of the PREFIX PRO preamp toward you. The body of the preamp will swing out, revealing the BATTERY COM- PARTMENT. Insert a fresh 9V alkaline battery. POWER The PREFIX PRO has no ON/OFF switch. It is turned on only whe

7、n 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. NOTE: Plug an instrument cable into the endpin jack before you plug into the sound equipment. Doing so will prevent loudspeaker damage. BA

8、TTERY LOW LED When plugging into the endpin jack, 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. RadioFans.CN 收音机爱 好者资料库 FI S H M A NPR E F I X PR O 4 CONTROLS NOTCH FILTER This is a fixed level, v

9、ariable-frequency filter for eliminating feedback or unwanted resonance. The affected frequency is variable from 40 to 500 Hz. The NOTCH FILTER is effectively off in the full counter-clockwise position. VOLUME CONTROL The Volume control goes from very quiet to very loud. BASS, & TREBLE CONTROLS Thes

10、e are boost/cut shelving tone controls. The center detent yields a flat response. MIDDLE & BRILLIANCE CONTROL These are resonant style boost/cut filters.When boosted, the BRIL- LIANCE control can add presence to your sound or brighten up dead strings. When cut, the MIDDLE control “scoops” out harsh

11、midrange fre- quencies. PHASE SWITCH The PHASE switch compensates for acoustic phase differences that often occur between instrument and speaker. It can be used as a tone filter at low volume levels or a feedback filter at high levels. The PHASE switch can correct any electrical phase difference bet

12、ween the PREFIX PRO system and an outboard instrument microphone. Flip the PHASE switch several times and use your ear to find the optimum setting. The best position for the PHASE switch may change, depending on the sound system and/or venue acoustics. AC O U S T I CGU I T A RSY S T E M 5 SUGGESTEDE

13、Q SETTINGS These settings are meant to be used as a starting point for building your sound. MID CUT This is a good all-around setting. Cut the MIDDLE Level to taste. You can also cut midrange by boosting the BASS and TREBLE sliders to realize an implied mid-cut at 800 Hz. BRILLIANCE If you are playi

14、ng through a guitar ampli- fier or have dead strings on the instru- ment, you can brighten up your sound with this setting. FI S H M A NPR E F I X PR O 6 SUGGESTEDEQ SETTINGS, CONTINUED CUT THROUGH THE MIX For cutting through a live band mix at high volumes. FINGERSTYLE This setting will add fullnes

15、s to the bass and definition to the treble. SPECIFICATIONS Nominal Input Level:-20 dBV Input Overload:(20 Hz - 20 kHz) +2 dBV 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 referr

16、ed to nominal -20 dBV input) Current Drain:Less than 3.5 mA Power Supply:9V Alkaline battery (estimated 160 hours continuous use with low battery indicator at 6.5V) Notch Filter Range:40Hz - 500 Hz (-15 dB) Bass Control Range: 12 dB at 60 Hz 3 dB at 350 Hz Treble Control Range: 12 dB at 10 kHz 3 dB

17、at 2.4 kHz Mid Control Range: 12 dB at 1 kHz 3 dB Bandwidth 1.1 kHz Brilliance Control Range: 12 dB at 10 kHz 3 dB Bandwidth 7 kHz All specifications subject to change without notice. AC O U S T I CGU I T A RSY S T E M 7 TM PROPRO PREFIXPREFIXPREFIX INSTALLATION BY A QUALIFIED PROFESSIONAL REPAIRMAN

18、 IS STRONGLY RECOMMENDED. FISHMAN TRANSDUCERS WILL NOT BE RESPONSIBLE FOR ANY DAMAGES THAT MAY RESULT FROM IMPROPER INSTALLATION. The FISHMAN PREFIX PRO ACOUSTIC GUITAR SYSTEM is warranted to function for a period of One (1) Year from the date of purchase. If the unit fails to function properly with

19、in the warranty period, free repair and the option of replacement or refund in the event that FISHMAN is unable to make repair are FISHMANs 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

20、 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 an

21、d 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. 1. Call FISHMAN TRANSDUCERS at 978-988-9199 for a Return Authorization Number (“RAN”). 2. Enclose a copy of the original Bill of Sale as evidence

22、 of the date of purchase, with the product in its original packaging and a protective carton or mailer. 3. FISHMAN TRANSDUCERS technicians will determine whether the item is covered by warranty or if it instead has been damaged by improper customer installation or other causes not related to defects

23、 in material or workmanship. 4. Warranty repairs or replacements will be sent automatically free of charge. 5. If FISHMAN TRANSDUCERS determines the item is not covered by warranty, we will notify you of the repair or replacement cost and wait for your authorization to proceed. FISHMAN TRANSDUCERS 340-D Fordham Road Wilmington MA 01887 USA Phone 978-988-9199 Fax 978-988-0770 009-089-003 5-99 LI M I T E DWA R R A N T Y