www.fishman.com USER GUIDE PREFIX PLUS-T
Contents
1. www fishman com ISHMAN USER GUIDE PREFIX PLUS T Welcome Thank you for making Fishman a part of your acoustic experience We are proud to offer you the finest acoustic amplification products available high quality professional grade tools to empower you to sound your very best We are confident Prefix Plus T will both enhance and inspire your music making Quick Start Before you begin set the controls as shown 1 Plug in Use a inch instrument cable 2 Tune up Press the Tuner button When engaged Tuner mutes the output Press again to exit Tuner 3 Turn up Raise the Volume 4 Pickup tone Adjust tone controls Volume an a an 1 N N S 2 i i fe U lv Bh Jat jst ts ng g amp 2 o 2 v gt 0 i O N N S 2 5 amp 5 Phase 250Hz Contour Freq 3kHz Tuner U aa U Controls Volume e For the cleanest signal set the volume knob as high as possible without causing distortion or feedback Bass e Boost here to add depth and weight to the sound of the guitar Middle e Turn the middle knob all the way left for a smooth scooped out tone at high volume levels Raise the middle knob to the right of center to add midrange bite to the sound Treble e Boost to cut through the mix Cut to mellow and subdue the sound Brilliance e This slider can add shimmer and sparkle to your sound It2. action for the preamp remember to leave an extra 3 76 2mm of slack when you decide the output cable s final length Solder the wire connections 1 Determine the proper length for the cable then if necessary strip and tin the output wires 2 To gain better access to the terminals on the endpin jack gently bend back the Strain Relief Sleeve tab before you begin to solder Jack connections for the Prefix Premium Blend model e Red wire to Tip short terminal e White wire to Ring middle terminal e Black wire to Switch longest terminal e Shield wire to Sleeve strain relief Black Wire White Wire to Switch to Ring Shield to to Tip Sleeve Jack connections for Onboard Aura and Prefix Plus T models e Red wire to Tip short terminal e Black wire to Switch longest terminal e Shield wire to Sleeve strain relief Black Wire to Switch Red Wire Shieldto to Tip Sleeve e Ring is not connected middle terminal Endpin jack Install the endpin jack per Switchjack Installation Guide Mount the preamp 1 Insert the pickup in the saddle slot 2 Carefully pull back the trap door on the preamp located next to the output cable to expose the rica Terminal Block Trap Door 0 O Pulled Back terminal block 3 Insert the hot pickup wire inner conductor in the left side of the terminal block marked IN the pickup ground wire shield in the
3. right side of the terminal block marked GND and tighten down the screws on the top of the terminal block with a 2 4mm slot head screwdriver 4 Snap closed the trap door 5 Angle the preamp 90 from the bezel and insert it in the cut out then fasten the preamp bezel using the four self tapping screws and the two plastic backing plates T Self Tapping Screws T Soundboard v v Plastic Backing Brackets Complete the installation Install a 9V alkaline battery To keep the wires inside the guitar from rattling secure them with the included adhesive backed clips Attach the wire guide clips to the side of the instrument FISHMAN www fishman com 009 087 007 Rev E 5 09
4. nearest string Install the pickup per Acoustic Matrix installation instructions Cut out the preamp cavity Please note For instruments with solid wood sides especially maple we strongly recommend that you glue 2 5 63 5mm x 5 12 7mm plywood patches in the areas inside the guitar where the screw holes will be drilled Doing so will prevent the area around the mounting holes from cracking or splintering and will strengthen the side of the instrument at the cutout 1 Choose the flattest possible location for the pre amp on the side of the instrument The flattest and most comfortable location for the player is often at the upper bout just above the instrument s waist and well below the shoulder Note that the bezel has a limited ability to bend just enough to conform to the curved sides of most standard sized instruments Caution When mounting the Prefix on solid wood instruments with highly curved sides such as small bodied acoustic electrics exercise extreme caution when choosing the preamp location A highly curved mounting surface may cause the preamp to bind against the mounting bezel or in worst cases may cause the wood to crack around the preamp mounting holes 2 Attach the enclosed cutout template at the de sired location and cut out the cavity for the preamp 3 Drill the preamp mounting holes with a 45 drill 082 2 08mm Output cable endpin jack wiring Important note To ensure full pivot
5. observe the correct polarity during this instal lation Sample Settings Fingerstyle This will add fullness to the bass and definition to the treble a 2 Scooped Mid This setting emphasizes extreme bass and treble dj E O Gamay O PREFIX DEC PLUS T Da 1 Notch 8 Volume Notch Volume y a W 8 al J a IE E 2 2 A 2 amp 5 NEL v dk UNER v ba o R o Le de L X o En 4 EN 4 o UE UU A UB NEUE Phase 250Hz Contour Freq 3kHz Tuner Pha So conte reg iz fui O Gamay O Strummer Cut Through the Mix A good setting for strumming chords When you need to be heard through a loud band AIL Den PREFIX PLUS T Battery Notch O Volume Notch Volume w w af Veil al yz IES E ah ESO je al Wal jet Js E g E E v E g E v bi o ho o ES dee EN n o Le Le EN 4 o SUSO US A SUS UE LU A Phase 50Hz Contour Freq z Tuner ir Freq iz fun CS O Gama U O Gama O Electrical Specifications Nominal Input Level Input Impedance Output Impedance Nominal Output Level THD Noise Floor Dynamic range Battery Life Notch Filter Range Bass control frequency Treble control frequency Contour control frequency Brilliance control frequency 20dBV 20MOhm Less than 3 5kOhm 12dBV Less than 04 20d BV input 97dBV 104dB 150h
6. rs tuner off 30Hz 300Hz 15dB 60Hz 10kHz 250Hz 3kHz O 0 5 10kHz OQ 0 5 All specifications subject to change without notice 10 FISHMAN www fishman com 513 000 022 Rev H 9 08 Fishman Prefix Series Cutout Template 2 264 57 51 mm 1 024 26 01 mm aay 757 4 00 mm fol 9 23 mm pS For bezels with 6 holes 2x D 089 2 26 mm 2 BE we AD a E a a 6x R 0 093 2 36 mm 3 16 Cutter yY 1 902 4 48 3 mm 4x D 116 0 230 2 94 mm 5 84 mm 009 087 001 Rev 2 8 03 PREFIX SERIES PREAMP INSTALLATION GUIDE www fishman com Read Me First Installation of this product is a simple procedure but we recommend this job only if you are an experienced repair technician Requirements Saddle slot Minimum saddle slot length 2 775 70 4mm Maximum E to E spacing at saddle 2 5 63 5mm The Prefix preamp will only fit in guitars with a clearance of at least 2 57 15mm between the top and back braces at the point where the preamp chassis swings inside the instrument Soundboard Minimum 2 250 57 15mm clearance between top and i back braces iso tr Installation Preliminary 1 Widen the endpin hole to 2 11 9mm to accommodate the endpin jack 2 Drill a hole 2 4mm in the saddle slot for the pickup wire no less than 100 2 5mm from
7. zeros in on crisp high frequency tones the realm of harmonics and acoustic string sound Lower the brilliance slider to reduce finger noise and fret buzz Notch Tune the notch filter to remove low end feedback Raise the volume until feedback occurs then slowly turn the notch to the right until the feedback is eliminated Tuner Depress the Tuner button to turn the circuit on and off This digital chromatic tuner accommodates all standard and alternate tunings and mutes the output when engaged It can be activated without an instrument cable connected in which case it will turn itself off after three minutes Note the tuner is calibrated to A 440 below pitch y FE pitch is raised Ya step flashes in edit mode in tune OQ above pitch A Phase Use the Phase switch to improve bass response at low volume and suppress feedback at high volume If feedback occurs push the Phase switch If feedback recurs when you change your location press switch again Power Plug in the guitar and the Prefix Plus T switches on The Battery LED will flash once at power up to tell you the preamp is on Low Battery Indicator When the Battery indicator lights steadily it is time to change the battery To conserve power unplug the instrument and turn off the tuner when not in use Replace the battery by flipping open the preamp body using the latch located at the top ofthe preamp Be sure to
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