Boss Audio Systems BPS80 User manual

BPS80 Amplified Subwoofer User’s Manual - Page 1

BPS80

Congratulations on your

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

(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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