User manual FISHMAN VTB

[. . . ] The VTB answers the requests from many customers who asked for basic volume and tone shaping for their Acoustic Matrix or Powerjack systems. The spacing of the controls for the VTB is identical to our vintage AGP2 preamp. The VTB, along with a new Acoustic Matrix active undersaddle pickup, makes a great upgrade or replacement for the discontinued AGP-2. [. . . ] Drilling Holes We provide a template to locate the holes for the control shafts. Cut out the template and use it to verify that the VTB will fit at the desired location inside the guitar. Tape the template at the same location outside the guitar. With a sharp scribe, pierce the template at the center marks for the holes. Remove the template and drill 3/8" (9. 5mm) holes through the side of the guitar. We recommend a sharp spur bit drill for this operation. Fishman Acoustic Matrix & Martin Gold Plus - Rev 4. 0 1. Remove the components from the endpin preamp as indicated Remove Capacitor 000 Remove Resistor "182" 182 2. Solder the new 2k resistor (supplied with your VTB) to the preamp circuit board 2k Resistor "202" 202 000 3. Thread the VTB cable through the preamp barrel and solder to the preamp circuit board Shield Black Red White 202 000 White Fishman Powerjack, Martin Activejack - Rev 2. 3 1. Remove the "000" jumper from the endpin preamp. Remove Jumper "000" 000 Electrical Specifications Typical current consumption @ 9Vdc: Typical 9V alkaline battery life: Input impedance (ohm): Nominal output impedance (ohm): Recommended load impedance (ohm): Signal gain (tone controls flat, volume at maximum): Maximum output level (1% THD @ 3kHz): 0. 85mA 500 hrs. 47k 1k 10k and up 0 dB (unity) +8dBV -103 dBV -93 dBV 93dB (Referenced to -10dBV) 111 dB (Referenced to onset of clipping, 1% THD @ 3kHz) 10Hz - 70 kHz (Tone controls flat, -3dB relative to 1kHz, 100k load) 2. Thread the VTB cable through the preamp barrel and solder to the preamp circuit board Red Shield Black Baseline noise (A-weighted, tone controls flat): Baseline noise (A-weighted, tone controls full boost): Signal to Noise Ratio (A-weighted, tone controls flat): Dynamic Range (A-weighted): White White Frequency response: Bass control: (Outer shaft) 100 Hz @ 12 dB Treble control: (Inner shaft) 11 kHz @ 14 dB Finish the Job Fasten the VTB to your instrument as shown 1. Backing nuts Cable Color Code: Color White Red Black Copper shield Function VTB Input +9V VTB Output Ground All specifications subject to change without notice. L i m i t e d Wa r r a n t y Save your original sales receipt. It is your proof of purchase if you require warranty service. The Fishman VTB ("Product") is warranted to the original consumer purchaser to be free of defects in materials and workmanship under normal use and service for a period of one (1) year from the date of purchase. If the Product fails to function properly due to defects in materials or workmanship during the applicable warranty period, Fishman Transducers Inc. [. . . ] Also include a copy of your sales receipt and a note that explains how to duplicate the problem. If we cannot duplicate the problem at the Factory or verify the original purchase date, we may, at our option, charge for parts/labor and return shipping. Ship the VTB freight prepaid to: Fishman Transducers Service Department 340 Fordham Road, Wilmington, MA 01887 USA 2 - Nuts 3 - Washers GUITAR BODY 4 - Backing Strip 5 - Lockwashers with Ground Tabs 6 - Backing Nuts Ground Wire EXCEPT AS SPECIFICALLY PROVIDED IN THIS DOCUMENT, THERE ARE NO OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. [. . . ]