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 KO and GT 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.

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 KO
•Section 2: PinWoofer GT

Section 1
•KO Amplifier

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

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 Input and plug it into
the LINE_IN jack on the BBU.
5. Connect the 3ft 3.5mm Male to 3.5mm TRS
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. CAUTION: Please examine the red and black
wire orientation at the header labeled “2” –
DO NOT reverse the wire orientation – use
care to ensure that the red and black wires
are as shown.

Section 2
•GT Amplifier

Starting PinWoofer GT
Amplifier Connections
•Shown to the right are:
1. Harness Power Cable Connection.
2. Amplifier Output Mini-Jack.

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. (The image shows a
12in cable to minimize clutter.)
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. CAUTION: Please examine the red and
black wire orientation at the header
labeled “2” – DO NOT reverse the wire
orientation – use care to ensure that the
red and black wires are as shown.

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 Volume and Low Pass 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.
•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.

KO Use Model Example
•Shown is one example of how you might
place your BBU into your machine using
the KO 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.

GT Use Model Example
•Shown is one example of how you might
place your BBU into your machine using
the GT 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.