[. . . ] The AGP-2 is designed specifically for acoustic string instruments including guitars, violins, violas, cellos and mandolins. The ABGP offers the same features as its general purpose counterpart, but has specially selected frequencies specifically chosen for the acoustic bass and the Fishman BP-100 Bass Transducer. INSTALLATION 1. LOCATION Determine the best location for the Preamp on your instrument. [. . . ] Replace the cover and screws (SEE NEXT SECTION), being careful to engage the grommet in the appropriate slot. 6. MOUNTING THE BATTERY HOLDER The AGP-2 is supplied with a battery holder that can be attached to the preamp cover with the screws provided (see Figure 3), or be attached to the neck block (see Section 6a). Be sure to check and adjust the fit of the battery in the holder before installing the AGP-2 Preamp inside the instrument. 6a. OPTIONAL BATTERY HOLDER MOUNT Cut a block of 1/4" plywood approximately 1-1/2" x 2-1/2" (40mm x 65mm). Using two Number 4 pan-head sheet metal screws (1/4" length), attach the battery holder to the wooden block. The assembly can then be attached to the neck block with wood glue, double sided tape, or Velcro. 4 ONBOARD ACOUSTIC GUITAR PREAMP IMPORTANT Although the supplied battery holder should provide adequate capacity to grip the battery at all times, we strongly recommend removal of the battery when shipping or flying with your instrument. Fishman will not be held responsible for any such damage as a result of shipping or handling. 7. MOUNT THE PREAMP Slip the wooden spacer block (prepared earlier) over the control bushings and mount the preamp. The outside hardware should include a smooth 3/8" dress washer and a 3/8" hex nut. PREPARE THE ENDBLOCK The objective of this method is to drill a hole for the jack into the endblock, with the endpin in place. You may remove a loose endpin and refasten it with cyanoacrylate glue before starting this procedure. Apply masking tape around the endblock area to protect the instrument. Cut the endpin with an X-Acto saw blade 1/16" away from the body. Line up the 15/32" Spade bit in the pilot hole and begin drilling. [. . . ] FISHMAN retains the right to 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 gives you specific legal rights and 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. . . [. . . ]