User manual FENDER MUSICMASTER

[. . . ] This low-profile "slider" unit features BASS, TREBLE, MIDRANGE and BRILLIANCE controls as well as a "set it and forget it" SUB-BASS energy trim control located on the back of the preamp. This internal trim feature can be used to adjust the amount of soundhole resonance or "bottom" so that the INSTALLATION PROFESSIONAL ACTIVE ACOUSTIC GUITAR SYSTEM WIDE FORMAT: . 125" (3. 2 mm) Width NARROW FORMAT: . 093" (2. 3 mm) Width ACOUSTIC MATRIX WARNING INSTALLATION BY A QUALIFIED PROFESSIONAL REPAIRMAN IS STRONGLY RECOMMENDED. FISHMAN TRANSDUCERS WILL NOT BE RESPONSIBLE FOR ANY DAMAGES THAT MAY RESULT FROM IMPROPER INSTALLATION. THE PREAMP The incredibly small size and convenient under the saddle design of the transducer helps preserve the beauty and structural integrity of your instrument. The ACOUSTIC MATRIX transducer is a multi-layer configuration of continuous strips of sensing material that are fully EMI shielded. This continuous strip design allows it to sense the motion of the entire saddle rather than small sections of it (as is the case with traditional ceramic based transducers); providing superb string balance. The ACOUSTIC MATRIX pickup is made with a unique co-polymer sensing material available exclusively from Fishman. [. . . ] Be certain that the bottom of the slot is FLAT. Deepen an existing slot only enough to obtain a clean, flat surface. · · · PICKUP DIMENSIONS WIDE FORMAT Width: Height: Length: Sensing Area: . 125" (3. 2 mm) . 053" (1. 35 mm) 2. 650" (67. 3 mm) 2. 670" (67. 8 mm) NARROW FORMAT Width: Height: Length: Sensing Area: . 09375" (2. 4 mm) . 043" (1. 1 mm) 2. 650" (67. 3 mm) 2. 670" (67. 8 mm) LOCATE THE WIRE HOLE 1. Locate the center of the wire hole no less than . 100" (2. 5 mm) from the closest string. Mark the location where the wire will enter the saddle slot. Center the mark between the walls (width) of the slot. Clear wood chips and foreign materials from the saddle slot. Carefully insert (do not bend) the pickup. Max. recommended string spacing: 2. 500" (63. 5 mm) Max. recommended string spacing: 2. 500" (63. 5 mm) GUIDE NOTE: The overall length of the Matrix pickup is 2. 700" (68. 58mm). We recommend a saddle slot length of at least 2. 875" (73mm). The actual sensing area of the pickup is 2. 670" long and can accommodate string spacings of up to 2. 500" (63. 5 mm). Fasten the 3/16" brass hex screws and the 1/4" hex standoffs to the preamp as shown. Note that the mounting holes on the volume control side of the circuit board are slotted to allow for fitting the preamp to the curved surface of the guitar side. Temporarily fit the preamp and bezel together on the guitar, with the standoffs finger tight. Fasten the bezel with the #4-40 1/2" screws to check the standoff alignment. Mount the backplate to the preamp with the 3/16" #4-40 screws. Install the battery and string up the guitar. Plug the guitar into an amplifier and set all the slider's tone controls to their center positions. On the back of the preamp, there is a recessed Sub-Bass control which is preset at the factory to full boost. This can be used to roll-off the amount of "bottom end" which can cause feedback (especially in larger dreadnought-style guitars). Turn the trim pot counter clockwise for less bass. Be sure that the low battery LED lines up with the corresponding hole in the bezel. [. . . ] Insert the pickup in the saddle slot then strip and tin the wire ends. Solder the "hot" wire from the pickup (inner conductor) to the pad marked "IN" on the preamp circuit board. Solder the "ground" wire from the pickup (shield) to the pad marked "GND" on the preamp circuit board. Strip and tin the wire ends of the preamp output cable. [. . . ]