Fender Fishman-AGP-2-ABGP Operation Manual
OWNER’S MANUAL
AGP-2
ONBOARD ACOUSTIC GUITAR PREAMP
ABGP
ONBOARD ACOUSTIC BASS GUITAR PREAMP
AGP-2 / ABGP
Thank you for your purchase of a FISHMAN product. Please read these
instructions carefully. If you have any questions or problems, contact our
PRODUCT INFORMATION LINE at 978-988-9665.
The Fishman AGP-2 and ABGP preamps are specifically designed for use
with piezoelectric pickups. Since piezoelectric pickups require specific electrical environments, the AGP-2 / ABGP feature discrete input stages that
maximize the full potential of the pickup. Both units provide active gain control and fully buffered shelving style active boost and cut for BASS and
TREBLE. The center frequencies of these controls have been selected for
their relationship with acoustic instruments.
The width of the bass and treble separation effectively provides a midrange
control; boosting the bass and treble controls simultaneously will provide an
effective midrange cut or vice-versa.
The Preamp housing is made of rugged aluminum and weighs only seven
ounces. For maximum portability and user convenience, it is equipped with
a heavy duty stainless steel belt clip.
NOTE: If you have purchased the AGP-2 Preamp Kit that includes the
Fishman AG-125 Acoustic Guitar Transducer, be sure to see the enclosed
separate instructions to guide you in proper installation of the transducer.
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. We recommend the upper bout adjacent to the neck, or in the waist area. Avoid any
location that may interfere with neck block, braces or linings.
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ONBOARD ACOUSTIC GUITAR PREAMP
INSTALLATION BY A QUALIFIED PROFESSIONAL REPAIRMAN IS STRONGLY
RECOMMENDED. FISHMAN TRANSDUCERS WILL NOT BE RESPONSIBLE FOR ANY
DAMAGES TO YOUR INSTRUMENT DUE TO IMPROPER INSTALLATION.
WARNING
2. TEMPLATE
A drilling template is provided for drilling the control shaft holes. Cut out the
template outline. Check that it fits between the upper and lower linings
when held inside the guitar at the chosen location. Tape the template at the
location on the outside of the guitar.With a sharp scribe, pierce the template at the marks. Remove the template. This should provide you with two
drilling centers marked on the side of the guitar.These centers will be
1.250 inch (31.8mm) apart. At each center, drill a .375 inch (9.5mm) hole
through the side of the guitar.We recommend using a sharp 3/8 inch spur
bit for this operation.
FIG. 1
3. SPACER BLOCK
We strongly advise that a
wooden spacer block (see
Figure 1) be used to add
strength to the mounting area
of the guitar and to more evenly
distribute the load of the preamp. We do not recommend
using a hex nut and lock washer as the inside bearing surface to accommodate the thickness of the inside of your instrument because this could result
in possible damage to the instrument itself
4. PREPARING THE SPACER
Using the drilling template as a guide, make a rectangular wooden spacer
that is 2.00 inch x .750 inch x T (50.8mm x 19.0mm x T). T is the measurement derived from the protruding bushing length minus the outside hardware thickness (Figure 1) To derive T, insert the control shafts through the
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