SubDude Audio PINWOOFER User manual

Copyright © 2019-2021 SubDude Audio LLC, Idaho, USA. All
Rights Reserved. Reproduction, transmission or redistribution
of this document or its contents without written permission is
prohibited.
Take your time, follow the instructions, relax, and enjoy yourself!
WARNINGS: Perform installation with your pinball machine turned off and
unplugged from AC power.
Bass Boost Unit (BBU)
Section 1 – KO Amplifier
Section 2 – GT Amplifier
Section 3 – External Subwoofer Connection
Section 4 – Example BBU Placement

Section 1 - KO Amplifier
Starting PinWoofer KO Amplifier
Connections
Shown above are the Harness Power Cable and Harness Audio Cable Connections for
your PinWoofer KO Amplifier.

KO BBU Connections
1. Disconnect the Harness Power Cable from the PinWoofer Amplifier and plug it
into the 5.5mm BBU Power Jack.
2. Connect the New Power Cable Stub to the 2-pin header on the BBU observing
the polarity shown.
3. Plug the other end of the New Power Cable Stub into the 5.5mm amplifier power
jack.
4. Disconnect the Harness Audio Cable (3.5mm Male Mini-Plug) from the
PinWoofer Amplifier and plug it into the LINE_IN jack on the BBU.
5. Connect the 3ft 3.5mm Male to 3.5mm Male Cable from the BBU LINE_OUT to
the PinWoofer Amplifier Input Jack. (The image shows a 6in cable to minimize
clutter.)
6. Plug the 12ft Subwoofer Cable into the SUB_OUT jack on the BBU.
7. If you connect the 2-pin power connector to the BBU backwards, you will blow
the on-board fuse and the power LED will not glow. If this happens, simply
replace the 20mm 1A Slow Blow Fuse, and correct the polarity.

Section 2 - GT Amplifier
Starting PinWoofer GT Amplifier
Connections
Shown above are the Harness Power Cable and 3.5mm Mini-Jack Line Out Connections
for your PinWoofer GT Amplifier.

GT BBU Connections
1. Disconnect the Harness Power Cable from the PinWoofer Amplifier and plug it
into the 5.5mm BBU Power Jack.
2. Connect the New Power Cable Stub to the 2-pin header on the BBU observing
the polarity shown.
3. Plug the other end of the New Power Cable Stub into the 5.5mm amplifier power
jack.
4. Connect the 3ft 3.5mm Male to 3.5mm Male Cable from the BBU LINE_IN to the
PinWoofer GT Amplifier Line Out Jack. (The image shows a 6in cable to
minimize clutter.)
5. Plug the 12ft Subwoofer Cable into the SUB_OUT jack on the BBU.
6. The BBU LINE_OUT is unused.
7. If you connect the 2-pin power connector to the BBU backwards, you will blow
the on-board fuse and the power LED will not glow. If this happens, simply
replace the 20mm 1A Slow Blow Fuse, and correct the polarity.

Section 3 - External
Subwoofer Connection
Route the 12ft SUB_OUT cable out the back of the cabinet (through a ventilation hole)
and plug into your subwoofer.
It is recommended that you run the external subwoofer volume at or near maximum. It is
also recommended that you run the bass cutoff frequency (LOW PASS / Hz) at maximum.
Both of these functions are now controlled by the BBU.
If your subwoofer has a phase switch, you’ll want to first try it at 180 degrees. Feel free
to experiment.

Your subwoofer input connections may vary. If necessary, you may need a RCA splitter
or a RCA to mini-plug as shown above.

Section 4 - Example BBU
Placement
1. To review, both bass cutoff frequency and volume settings are now controlled by
the BBU.
2. If you would like to place the BBU at a different location for your convenience, or
to work better with your bracket and mounting location, feel free to experiment.
3. Utilize the included cable ties to keep your wires bundled and neat.
4. It is recommended that you secure your BBU with the provided double sticky tape
and affix it to a secure location

Additional BBU Placement Examples