Flipper Fidelity Williams / Bally "System 11" Speaker Installation
Thank you for purchasing the Flipper Fidelity speaker kit for a Williams/Bally System 11 Pinball machine. Your kit should include the
following:
(1) 5" Speaker
(1) 6" Speaker
(1) 5" speaker spacer
(1) Back box speaker wiring harness
(2) Speaker wiring harness adaptors
(1) Volume Control Assembly
(1) 8" Woofer with crossover attached
(1) Woofer spacer
(4) 1" #8 pan head screws
(2) ½" #6 hex head screws
(4) ½" #8 Phillip's truss head screws
Please make sure all parts are present before starting
your installation.
Tools required for kit installation:
1/4" nut driver.
5/16" nut driver
Medium Phillip's screw driver
Note: Use of a drill driver or powered screwdriver is not recommended. Avoid over‐tightening. The fasteners used by Williams /
Bally, and those included in this kit, need only be tightened enough to hold the component in place and prevent vibration when in
use.
Please allow approximately 30 minutes to install. This kit requires no permanent modification to the machine. You may want to take
photos of your particular machine in the event you wish to accurately restore it to its' original configuration.
Step One – Machine Preparation.
Make sure you have adequate space available to access the front and both sides of the machine. Make sure the machine is turned
off and unplugged from its' power source. To
install this kit you will need to remove the
translite to access the back box speakers, speaker
connections, and to mount the volume control.
Woofer installation requires access to the inside
of the base cabinet. If you are not familiar with
the procedures to access these areas, i.e. removal
of the translite, removal of the playfield glass, and
raising the playfield to the service position; please
refer to the Williams / Bally owners' manual.
Step Two ‐ Back‐box speaker removal.
First, remove the translite. For safety, I would
find a towel to drape across the machine for the
speaker/display panel to rest on. This will protect
both your speaker/display panel and the side rails
from getting scratched. Lay the panel on its front,
spanning across the side rails. See photo.
Carefully examine the existing installation of the
back box speakers. Note the routing of the stock
wiring. The green wire going to one of the
fasteners holding the existing back box speakers is a ground wire which must be re‐attached when the new speakers are installed.
Instructions
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