Boston CPS 8Wi User manual

OWNER’S MANUAL / SAFETY INSTRUCTIONS / COMPLIANCE INFORMATION

Classic

CPS 12Wi, CPS 10Wi, CPS 8Wi

Wireless-Ready Subwoofers

Español

Subwoofers Boston

Classic Series

Manual del Propietario /

Instrucciones de Seguridad /

Información de Cumplimiento

Français

Caissons de graves Boston

Classic Series / Guide de

l’utilisateur / Instructions

de sécurité / Informations

relatives à la conformité

3

Speciﬁcations CPS 12Wi CPS 10Wi CPS 8Wi

Frequency Range:

25Hz – 150Hz 28Hz – 150Hz 31Hz – 150Hz

Amplier Power: 400 watts RMS 300 watts RMS 200 watts RMS

(850 watts Peak) (650 watts Peak) (350 watts Peak)

Bass Driver: 12” (305mm) DCD 10” (254mm) DCD 8” (203mm) DCD

Dimensions: (H x W x D) 15

11

⁄16 x 16

7

⁄16 x 17” 13

7

⁄8 x 14

11

⁄16 x 17” 11

1

⁄2 x 12

3

⁄16 x 15

3

⁄8”

(397 x 416 x 431mm) (352 x 372 x 431mm) (292 x 309 x 389mm)

Weight: 48.5 lbs 40 lbs 26 lbs

(22kg) (16.8kg) (11.7kg)

Introduction

Boston Acoustics Classic Series Wireless-Ready Subwoofers

Thank you for choosing Boston Acoustics. The Classic Series Wireless Ready subwoofers incorporate high-quality components

that produce the legendary Boston Sound. The subwoofers are ideally suited for use in a high-quality 5.1 channel home

theater or stereo music system. They are capable of impressive deep bass and high output from remarkably compact

enclosures. In addition, they feature BassTrac®, a proprietary Boston-designed circuit that tracks the input signal to the

subwoofer and prevents its ampliﬁer from being driven into audible distortion. The beneﬁt: the bass stays clean and strong

at any listening level.

Features

• PlaywirelesslywiththeoptionalWT50WirelessTransmitter

• 12”,10”,and8”woofers

• 200to400wattsRMS

• High-outputfront-ring,front-porteddesign

• DeepChannel®Design(DCD)woofersformorebassfromlessamplierpower

• BassTraccircuitryfortight,distortion-freebassatalloutputlevels

• Adjustablecrossoverfrequencyandvolumecontrol

• Switchablepolarity

• Signal-sensingautomaticaudio-oncircuitry

• Speakerandlinelevelinputs

• Ultra-rigidreinforcedcabinetry

3

Speciﬁcations CPS 12Wi CPS 10Wi CPS 8Wi

Frequency Range: 25Hz – 150Hz 28Hz – 150Hz 31Hz – 150Hz

Amplier Power: 400 watts RMS 300 watts RMS 200 watts RMS

(850 watts Peak) (650 watts Peak) (350 watts Peak)

Bass Driver: 12” (305mm) DCD 10” (254mm) DCD 8” (203mm) DCD

Dimensions: (H x W x D) 15

11

⁄16 x 16

7

⁄16 x 17” 13

7

⁄8 x 14

11

⁄16 x 17” 11

1

⁄2 x 12

3

⁄16 x 15

3

⁄8”

(397 x 416 x 431mm) (352 x 372 x 431mm) (292 x 309 x 389mm)

Weight: 48.5 lbs 40 lbs 26 lbs

(22kg) (16.8kg) (11.7kg)

Introduction

Boston Acoustics Classic Series Wireless-Ready Subwoofers

Thank you for choosing Boston Acoustics. The Classic Series Wireless Ready subwoofers incorporate high-quality components

that produce the legendary Boston Sound. The subwoofers are ideally suited for use in a high-quality 5.1 channel home

theater or stereo music system. They are capable of impressive deep bass and high output from remarkably compact

enclosures. In addition, they feature BassTrac®, a proprietary Boston-designed circuit that tracks the input signal to the

subwoofer and prevents its ampliﬁer from being driven into audible distortion. The beneﬁt: the bass stays clean and strong

at any listening level.

Features

• PlaywirelesslywiththeoptionalWT50WirelessTransmitter

• 12”,10”,and8”woofers

• 200to400wattsRMS

• High-outputfront-ring,front-porteddesign

• DeepChannel®Design(DCD)woofersformorebassfromlessamplierpower

• BassTraccircuitryfortight,distortion-freebassatalloutputlevels

• Adjustablecrossoverfrequencyandvolumecontrol

• Switchablepolarity

• Signal-sensingautomaticaudio-oncircuitry

• Speakerandlinelevelinputs

• Ultra-rigidreinforcedcabinetry

5

receiver

CPS 12Wi

use either input

digital receiver

Sub Out

CPS 12Wi

Connections

After your speakers are properly placed, you are ready to wire your system.

NOTE: Power is always supplied to the subwoofer electronics unless it is unplugged or switched to the Mute position using

the Audio On switch located on the rear panel. The auto-on circuitry only activates or deactivates the power ampliﬁer. Make

sure your subwoofer and receiver are unplugged when making the connection (230v models include a main power switch

which turns oﬀ all power of the subwoofer).

Power: When plugging your subwoofer in be sure to use a wall outlet, or dedicated electrical outlet. Some receivers will

provide a switched outlet. Do not use this. These on-board electrical outlets do not oﬀer the amount of current or proper

isolation required by a power ampliﬁer, such as the one in your subwoofer.

Line level or LFE: On most systems use the line level input or the LFE input. These inputs accept the line-level signal from

your receiver’s subwoofer output. Your receiver’s manual should indicate which input is most appropriate.

Connecting the Subwoofer to Digital Home Theater Systems Using LFE

Digital 5.1, 6.1 and 7.1 home theater electronics dedicate one channel (the “.1”) to reproduce the special low-frequency eﬀects

(LFE) information (such as explosions and thunder) contained in digitally-encoded soundtracks.

Select ”subwoofer-yes” from your receiver’s set-up menu. Hooked up this way, the receiver’s ampliﬁer is relieved of having

to reproduce the diﬃcult low bass signals that can drive the receiver into audible distortion. In some cases it can also depend

on several other settings within a receiver. We recommend consulting your receiver manual for further assistance in this area.

Use an RCA cable (not included), as shown, to connect your digital receiver’s LFE/subwoofer output to the subwoofer.

Connect the other end to the Line Level/LFE input.

Connecting the Subwoofer to Stereo or Dolby® Pro Logic®

For stereo or Dolby Pro Logic systems use the “sub out” connection from your receiver to the input on the subwoofer marked

“L” or “R”.

6

Note

Certain receivers use speaker grounding circuits that may be incompatible with external powered audio products, such as pow-

ered subwoofers. When speaker wire is used instead of line level cables, this incompatibility can result in an audible hum when

the receiver is turned oﬀ or switched to a diﬀerent speaker channel.

If this should happen with your Boston Acoustics subwoofer, you will need to make a ground cable and connect it to either RCA

line input on the subwoofer and any unused

RCA line input or output on your receiver

(see diagram). The proper ground cable for

this application should consist of two male

RCA plugs that have their negative outside

terminals (or “sleeve”) connected to each

other by any length of single conductor

copper cable. The inside positive (or “pin”)

terminals should not be wired in either plug.

CPS 12Wi

Connecting to Electronics Without a Subwoofer Output

If the receiver in your system does not have a subwoofer or LFE output you can connect the CPS Wi subwoofer to a preamp

output. Use a stereo RCA cable (not included) to connect the preamp outputs to the “L” and “R” Line Level inputs.

Adjusting the Crossover Control

When using the Line Level inputs (not the LFE input) the subwoofer’s built-in crossover is engaged. As a starting point, set the

crossover control on the subwoofer about 10Hz higher than the lower limit of your main speakers’ bass response. Fine-tune

the crossover setting by ear for the smoothest blend with your main speakers. The best setting of the crossover control will

depend on speaker placement and personal preference.

Speaker level

Use these high-level terminals with receivers that do not have subwoofer output. The speaker inputs accept both left and

right channel speaker signals from your receiver. When using a home theater receiver, set the speaker type to “Large.” The large

setting will produce a fuller sound.

or

CPS 12Wi

AUDIO

AUDIO VIDEO

VIDEOS VIDEO

V-AUX

IN

VCR

OUT

D-TV

/CBL

DVD

S VIDEO

VIDEO

MONITOR OUT

MONITOR

OUT

D-TV

/CBL

DVD

CD

FM

ANT

IN

(PLAY)

MD

/CD-R

OUT

(REC)

75Ω UNBAL.

TUNER

COMPONENT VIDEO

DIGITAL

OUTPUT

DIGITAL

INPUT

6 CH INPUT

CD

COAXIAL

R

L

R

L

MAIN

SUB

WOOFER

DVD

MD/CD-R

OPTICAL

D-TV/CBL

Y

P

B

/C

B

PR/CR

SURROUND

CENTER

AM

ANT

GND

single conductor (-) RCA to (-) RCA ground cable

use any available RCA jackback of receiver

use either RCA jack

back of subwoofer

7

Optional WT 50 Wireless Transmitter

Transmitter Power

Plug the transmitter power supply into a power outlet. The transmitter power supply requires very little power so you can

plug it into an auxiliary power outlet on the receiver. Plug the connector on the power supply cable into the transmitter

power input labeled 5V DC.

Wireless ID Switches

Both the CPS Wi Subwoofer and optional WT 50 Wireless

Transmitter have Wireless ID switches (located on the rear

of the subwoofer and transmitter). The various switch

settings change the digital identiﬁcation code of the

wireless signal the WT 50 sends to the subwoofer. The two

switches must be set to the same position. Typically you’ll

never need to adjust these switches. They are included in

case you have more than one CPS Wi subwoofer in your

house. Use diﬀerent Wireless ID switch settings so the

subwoofers won’t interfere with each other.

Note: Do not connect the same audio source to the subwoofer and WT 50 wireless transmitter at

the same time.

Operation

Audio On/Auto/Mute

Plug the subwoofer’s AC cord into a wall outlet. Do not use the outlets on the back of the receiver. Set the audio switch

to the desired setting.

AUDIO ON – The subwoofer audio is always on.

AUTO – The subwoofer audio will turn on whenever a signal is detected. If no signal is detected after several minutes, it will

automatically enter the Mute mode.

MUTE – The subwoofer is muted and will not produce any sound. You may want to unplug your subwoofer if you will not be

using it for some time or wish to conserve electricity. (On 230v models only, you may turn oﬀ the main power switch, located

next to the power cord)

An LED indicator next to the Polarity switch indicates what mode the subwoofer is in:

OFF – The subwoofer is unplugged (or the main power switch is oﬀ on 230v models)

RED – Mute (No signal detected, Amp Oﬀ)

GREEN – Audio On (Signal detected, Amp On)

The subwoofer will automatically enter the Mute mode after several minutes when no signal is detected from your system.

The subwoofer audio will then turn ON instantly when a signal is detected.

Polarity Control

(0° or 180°): Selects regular (0°) or inverted (180°) phase for the subwoofer. Set this switch to provide the fullest, most

dynamic bass. The eﬀect of phase will be most audible on low-frequency percussion instruments or music with a continuously

repeating bass line.

Crossover Control

Adjusts the frequency of the low pass ﬁlter for the subwoofer. Note: This control is not active when using the LFE input jack.

Volume Control

Turn the subwoofer Volume control to the 11 o’clock position. If no sound emanates from the subwoofer, check the AC-line

cord, Audio On switch, Power switch (on 230v models), and input cables.

Adjust the subwoofer Volume control until you hear a match between the main speaker and subwoofer. Bass response should

not overpower the room but rather be adjusted so there is a natural blend across the entire musical range.

WT 50 Transmitter Receiver

Power supply cord

CPS12Wi Service Parts

Component Item Component Description

110-002215 WOOFER 12"

111-001728 TRIM RING WOOFER CPS12Wi

120-003408 GRILLE ASSEMBLY CPS12Wi

120-003409 AMP ASSY W/O XFMR CPS12Wi 120V

120-003413 AMP ASSY W/O XFMR CPS12Wi 230V

120-003350

DISPLAY CARTON W/LABEL CPS12Wi BLK

120-003351

DISPLAY CARTON W/LABEL CPS12Wi CHERRY

126-000115 XFMR ASSEMBLY CPS12Wi 120V

126-000158 XFMR ASSEMBLY CPS12Wi 230V

132-000160

FUSE 5.0A 250V 20MM TIME LAG (for 120V model)

132-000161

FUSE 2.5A 250V 20MM TIME LAG (for 230V model)

137-001591 FOOT CPS10

137-001634 DETACHABLE POWER CORD 120V

137-001635 DETACHABLE POWER CORD 230V

140-000618 SCREW,HEX CAP,WFR

140-000619 SCREW,PHILIPS,AMP

141-002808 EPS TOP&BOTTOM SET CPS10/12Wi

142-003789

MANUAL CPS 8Wi 10Wi 12Wi

154-000308 TERMINAL CRIMP INSULATED CLOSED-END

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Boston CPS 8Wi User manual

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Boston CPS 8Wi User manual

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