SubDude Audio PINWOOFER User manual

Copyright © 2019-2023 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.

PinWoofer KOP and GTP BBU Amplifier Instructions

Kit Components
•Shown to the right are the kit
components:
1. PinWoofer BBU Board
2. 3ft 3.5mm Male to Male TRS Cable
3. 3ft Power Cable
4. 12ft 3.5mm TRS Male Stereo to RCA
Male Stereo Subwoofer Cable
5. Adhesive Double Sticky Mounting Pad.

BBU Overview
•The PinWoofer BBU (Bass Boost Unit) is used
with a PinWoofer Amplifier.
•It enables fine control of Bass Volume and
Bass Frequency Cutoff and provides a line
out to your external subwoofer.
•The first time you use the BBU, please rotate
both Bass Volume and Bass Frequency
Cutoff controls fully counterclockwise so
that you start from a “quiet” position and do
not overdrive your external subwoofer when
the title sound comes on.
•Also, turn any external subwoofer controls
full counterclockwise to zero.
•Slowly turn your controls “up” to increasing
intensity after you begin your audio
adjustments.

Amplifier Identification
•This document covers BBU installation on
one of two possible amplifier models.
•Identify your amplifier as shown to the
right.
•Section 1: PinWoofer KOP
•Section 2: PinWoofer GTP

Section 1
•KOP Amplifier

Starting PinWoofer
KOP Amplifier
Connections
•Shown to the right are:
1. Harness Power Cable Connection.
2. Harness Audio Cable Connection.

KOP BBU Connections
1. Disconnect the PinWoofer Harness
Power Cable from the PinWoofer
Amplifier and plug it into the BBU Power
Jack “Vin”.
2. Connect the New 3ft Power Cable to the
“Vout” Jack on the BBU.
3. Plug the other end of the New 3ft Power
Cable into the 5.5mm amplifier power
jack.
4. The existing audio cable from the
PinWoofer Harness remains plugged into
the “Input” Jack of the KOP Amplifier.
5. Interconnect the 3ft 3.5mm Male TRS to
3.5mm Male TRS Cable between the KOP
Amplifier “Output” Jack and the BBU
“LINE_IN” 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. Do not attempt to interconnect these
components in a way different than
shown.

Section 2
•GTP Amplifier

Starting PinWoofer
GTP Amplifier
Connections
•Shown to the right are:
1. Harness Power Cable Connection.
2. Harness Audio Cable Connection.

GTP BBU Connections
1. Disconnect the PinWoofer Harness
Power Cable from the PinWoofer
Amplifier and plug it into the BBU Power
Jack “Vin”.
2. Connect the New 3ft Power Cable to the
“Vout” Jack on the BBU.
3. Plug the other end of the New 3ft Power
Cable into the 5.5mm amplifier power
jack.
4. The existing audio cable from the
PinWoofer Harness remains plugged into
the “Input” Jack of the KOP Amplifier.
5. Interconnect the 3ft 3.5mm Male TRS to
3.5mm Male TRS Cable between the KOP
Amplifier “Output” Jack and the BBU
“LINE_IN” 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. Do not attempt to interconnect these
components in a way different than
shown.

Subwoofer Connection
•Route the 12ft SUB_OUT cable out the back
of the cabinet (through a ventilation hole)
and plug into your subwoofer.
•After initial setup, it is recommended that
you run the external subwoofer volume
between half and maximum. It is also
recommended that you run the bass cutoff
frequency (LOW PASS / Hz) between half
and maximum.
•Both Volume and Low Pass functions are
now controlled by the BBU remotely.
•If your subwoofer has a phase switch, you’ll
want to first try it at 180 degrees. Feel free
to experiment.
•It is recommended that you enable the auto
power to on so that your external subwoofer
turns off after a period of no signal at the
input.

Use Model Example
•Shown is one example of how you might
place your BBU into your machine.
•Keep in mind that there is power to your
BBU so care should be taken to secure it
to an interior surface using the supplied
double sticky tape, similar to what is
shown.

GTP Use Model
Example
•Shown is one example of how you might
place your BBU into your machine using
the GTP Amplifier.
•Keep in mind that there is power to your
BBU so care should be taken to secure it
to an interior surface using the supplied
double sticky tape, similar to what is
shown.

Your PinWoofer BBU is now ready for use.