Boss Audio Systems BPS80 User manual
BPS80 Amplified Subwoofer User’s Manual - Page 1
BPS80
BPS80
Congratulations on your
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purchase of a
Amplified Subwoofer.
It has been designed, engineered
Introduction
What is included?
Features
General precautions
Protection circuitry
Installation precautions
Fuses
Front panel controls and features
Rear panel controls and features
Input wiring
Power connections
Remote level control connection
Troubleshooting
Specifications
Mounting the subwoofer
Connecting the subwoofer
and manufactured to bring you
the highest level of performance
and quality, and will afford you
years of listening pleasure.
Thank you for making a
your choice for car audio
entertainment!
CONTENTS
8” Low Profile
Amplified Subwoofer
U S E R ’ S M A N U A L
page
Introduction
With the BPS80, we are introducing
a low profile amplified subwoofer, low
enough to easily fit below the seat of
your car. This system offers you a
quick and easy way to add a high-
powered subwoofer system to your
audio system.
The integrated amplifier in BPS80
features a low pass crossover and
a subsonic filter, as well as a control
for adjusting the input sensitivity from
0.1V to 1V.
Both high level (speaker level) and
low level (RCA) type inputs are
present, making this a universal
solution for use with any head unit
or other input source.
For further flexibility in the use of a
subwoofer, a variable bass boost
control has been included. you can
control the subwoofer level with the
remote level control module.
What is included?
When first unpacking your new
amplified subwoofer, please check
first that the package contains all
of the items below. If something is
missing, contact the store where
you purchased the product.
BPS80 amplified subwoofer
Remote subwoofer level control
Remote subwoofer control cable
High level input harness/wire
Mounting EVA pads and screws
Features
Your new Powered
Subwoofer features the following:
BPS80
BPS80 Amplified Subwoofer User’s Manual - Page 2
• RCA low level input
•High level input
•Green LED power status indicator
•Red LED protect status indicator
•Phase selector switch: 0 or 180º
•Adjustable input sensitivity: 0.1V-1V
•Variable bass boost
•Low pass filter (50 - 100Hz)
•Soft delay remote turn-on
•Remote sub-woofer control
•Thermal, short and overload
protection circuit
BPS80 Amplified Subwoofer User’s Manual - Page 3
Do not open or attempt to repair this
To avoid risk of electronic shock or
damage to the unit, do not permit any
of this equipment to become damp or
wet from water or drinks. If this does
occur, immediately unplug the power
wires and send the product to your
local dealer or service center as soon
If there is smoke or any peculiar odor
SHOCK HAZARD!
Do not open the case of this product.
There are dangerous voltages present
The built-in amplifier incorporates
special protection circuitry which will
disable the amplifier if any of the
following should occur:
Input overload
If any of these conditions is detected,
If you observe that the POWER STATUS
LED IS RED, please check the system
To reset the amplified subwoofer when
it is in PROTECT mode, turn the power
off to the system (usually by turning off
the head unit or other signal source
which feeds the amplifier) and then turn
it on again.
If the internal amplifier has shut down
due to thermal overload, you should first
allow it to cool down before restarting.
If the shut down was due to either an
input overload or a short circuit, be sure
to correct these conditions before
attempting to power up the subwoofer
again.
carefully to determine what has caused
the protection circuit to engage.
the amplifier will go into a self-
preservation mode, and the PROTECT
LED on the control panel will glow in
RED color.
Short circuit
Extremely high temperatures
within the unit. There are no user-
serviceable parts within the unit.
presentduringuseor if thereis damage
to any of the component enclosures,
immediately unplug the power cord
and send the product to your local
dealer or service center as soon as
possible .
as possible.
unit yourself. Dangerous high voltages
are present which may result in electric
shock. Refer any repairs to a qualified
service technician.
Before installing and using your new
amplified subwoofer, please
become familiar with all the infor-
mation contained in this manual.
Please keep this manual in a safe
place for future reference.
General precautions Protection Circuitry
What should I do if the POWER STATUS
LED is RED?
BPS80 Amplified Subwoofer User’s Manual - Page 4
BPS80
Installation precautions Mounting the subwoofer
Fuses
Before you drill or cut any holes, 1. Find a suitable location in the vehicle
in which to mount the amplifier. A
typical location is shown below:
carefully. Take special care when you
work near the gas tank, fuel lines,
hydraulic lines and electrical wiring.
Never operate the subwoofer when it
Do not mount this product so that wire
Before making or breaking power
connections in your system,
that your head unit or other equipment
is turned off while connecting the input
jacks and speaker terminals.
If you need to replace the power fuse,
replace it only with a fuse identical to
that supplied with the product. Using
a fuse of a different type or rating may
result in damage to your audio system
or your amplifier which is not covered
by the manufacturer’s warranty.
Power fuses protect both the amplifier
and the electrical system of your car
from fault conditions. If you must
replace a fuse in your
powered subwoofer, use a fuse of
exactly the same type and rating. Using
a different type or rating of fuse may
result in damage to your amp or vehicle
or cause a fire.
disconnect the vehicle battery. Confirm
connections are unprotected, in a
pinched condition, in contact with any
metal surfaces in your vehicle, or likely
to be damaged by nearby objects.
components securely within the
amplifier to prevent damage, especially
in an accident.
is unmounted. Attach all audio system
investigate your car’s layout very
Make sure there is sufficient air
circulation around the intended
mounting location. Position the
subwoofer enclosure where you wish
to install it. Make some small marks
to identify the position and remove the
(1). Thoroughly clean the area you plan
to attach the subwoofer, using a
vacuum cleaner.
unit.
2. Please follow below to install:
Vehicle seat
BPS80 Amplified Subwoofer User’s Manual - Page 5
Connecting the subwoofer
Before doing any wiring, look through
this manual and identify the diagrams
to follow for power, input and speaker
connections for your particular
installation. Be sure you understand
closest point on the chassis of the
vehicle. Keep this ground wire to less
than 39” (100 cm) in length. Use 8
gauge (or heavier) wire.
1. Connect the ground terminal to the
2. Connect the remote terminal to the
3. Connect an empty fuse holder within
remote output of the head unit using
16 gauge (or heavier) wire.
18” (45 cm) of the car battery, and run
8 gauge (or heavier) cable from this
fuse to the amplifier location.
Then connect the fuse holder to the
“BATT+” connection on the amplifier.
4. Check that the fuse holder is empty.
all the connections before you proceed.
or cut any holes, investigate your
Take special care when you work
near the gas tank, fuel lines, hydraulic
lines and electrical wiring.
car’s layout very carefully.
(2). Place a EVA pad below
each mounting leg, and attach the
amplified subwoofer to the surface
below using the (4) self-tapping screws
provided. Of course, before you drill
BPS80 Amplified Subwoofer User’s Manual - Page 6
5. Connect all line inputs and outputs (if
used) using high-quality cables. Connect
all speakers, following the diagrams in
this manual. Be sure to observe proper
polarity to avoid audio phase problems.
6. Insert fuse(s) into the battery fuse
7. Recheck all connections before
8. Set all level controls to minimum
powering up the subwoofer.
position, and set all crossover
controls/switches to the desired
frequency points.
9. Power up the head unit and the
10. Further fine tuning of the various
controls may be necessary to obtain best
subwoofer. Then set the volume control
on the head unit to about 3/4 volume,
and adjust the subwoofer’
controls to just below the level of
distortion.
results.
holder(s).
Do not mistake the input level control
for a volume control! It is designed
ONLY to match the output level of
your audio source to the input level
of your subwoofer.
Don’t misuse the level control!
Do not adjust this input level to
maximum unless your input level
in an input overload to the amplifier
in the subwoofer, and excessive
audio distortion. It can also cause
the protection circuit to engage.
requires it.
lgnoring these instructions will result
BPS80 Amplified Subwoofer User’s Manual - Page 7
Attach the included remote level After you have installed your system,
Turn the head unit on (and the
Slowly turn up the subwoofer input
gain control until you hear a small
amount of distortion. Then reduce the
level until the distortion is completely
The bass boost feature will increase
the sound level in the bass
frequencies.
gone. Leave the control at this setting.
subwoofer will turn on via the remote
connection). Turn the head unit
volume to about 2/3 full level.
turn this control to minimum
control to the port to control the volume
level of the subwoofer independently.
REMOTE LEVEL CONTROL PORT
This control permits you define the
frequency range you want the
subwoofer amplifier to receive. The
subwoofer will reproduce all sound
BELOW the frequency you set.
If the rest of your system is weak on
the mids, you may wish to set this
control relatively high. If the midrange
is well covered by the rest of your
system, you will probably want the
subwoofer to only receive lower
frequency signal.
Use this switch to help compensate
for time alignment problems in the
from having the subwoofer at a
different distance from the listener
than the other speakers in the system.
This LED is green when power
is on and no problems are
present.
system. Such problems usually result
LOW PASS FILTER
PHASE SHIFT
POWER STATUS LED
INPUT GAIN CONTROL
BASS BOOST
Front panel controls and features
PROTECT STATUS LED
This LED will be red if one of the
protection circuits comes on.
BPS80 Amplified Subwoofer User’s Manual - Page 8
Rear panel controls and features
POWER
The fuse is rated at 20A. Do not use
Low level inputs are the
recommended way to introduce
the audio signal to the subwoofer
if RCA outputs are present on
your head unit or other signal
source (such as a sound processor).
a fuse with a different value and
NEVER replace the fuse with a wire
or coin.
LOW LEVEL RCA INPUTS
BPS80.
HIGH LEVEL (speaker level) INPUTS
If your head unit does not have RCA
outputs, you can use the speaker
outputs for the audio source for the
wire harness and connect the outputs
properly as shown in the connection
diagram in this manual.
Use the supplied cable and
Connect the power cable terminals
as per the wiring label on the power
cable. Namely,
RED to BATT +12V,
BLACK to a good chasis ground,
BLUE to remote
BPS80 Amplified Subwoofer User’s Manual - Page 9
Low Level Input Wiring
High Level Input Wiring
Low-level (RCA) input wiring is preferred for best audio performance. Most trunk
The high level input(s) should only be used when your receiver lacks RCA outputs.
If the RCA outputs are not present, connect the speaker outputs from the receiver
to the high level input connector of the amplifier. Be sure to observe polarity to
avoid audio phase problems.
or hatchback installations will require a 15-20 foot RCA cable, while pickup trucks
and under-seat installations will require a 6-12 foot RCA cable. Always use a high-
quality cable.
NOTE: Do not connect BOTH the high level and low level inputs from your
receiver to your amplifier at the same time!
NOTE: Do not connect BOTH the high level and low level inputs from your
receiver to your amplifier at the same time!
To Audio
unit or signal
processor
Ou ut ts of hea
d
p
(The extension cable to
be purchased separately)
(The extension cable to be purchased separately)
BPS80 Amplified Subwoofer User’s Manual - Page 10
Connect the ground terminal to the closest point on the chassis of the vehicle.
Connect the remote terminal to the remote output of the head unit using 16 gauge
Connect an empty fuse holder within 18” (45 cm) of the car battery, and run 8 gauge
(or heavier) wire.
(or heavier) cable from this fuse to the amplifier location. Then connect the fuse
holder to the “BATT+” connection on the subwoofer rear panel.
Keep this ground wire to less than 39” (100 cm) in length. Use 8 gauge (or heavier)
wire.
Power Connections
Left Panel
Right Panel
Install the remote control securely
under the dash or in a similar
location where using it will not
distract the drive.
Remote Level Control Connection
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