Boston Acoustics PV700 Manual de usuario

Powered Subwoofers

PV900

PV700

Important Safety Instructions

This symbol found on the apparatus indicates hazards arising from dangerous

voltages.

This symbol found on the apparatus indicates the user should read all safety state-

ments found in the user manual.

This symbol found on the apparatus indicates double insulation.

WARNING! To reduce the risk of fire or electric shock, do not expose this product to rain or

moisture.

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with dry cloth.

7. Do not block any ventilation openings.

Install in accordance with the manufacturer's

instructions.

8. Do not install near any heat sources such

as radiators, heat registers, stoves, or other

apparatus (including amplifiers) that produce

heat.

9. Do not defeat the safety purpose of the

polarized or grounding-type plug. A polarized

plug has two blades with one wider than the

other. A grounding type plug has two blades

and a third grounding prong. The wide blade or

the third prong are provided for your safety. If

the provided plug does not fit into your outlet,

consult an electrician for replacement of the

obsolete outlet.

10. Protect the power cord from being

walked on or pinched particularly at plugs,

convenience receptacles, and the point where

they exit from the apparatus.

11. Only use attachments/accessories

specified by the manufacturer.

12. Unplug this apparatus during lightning

storms or when unused for long periods of time.

13. Refer all servicing to qualified service

personnel. Servicing is required when the

apparatus has been damaged in any way, such

as power-supply cord or plug is damaged, liquid

has been spilled or objects have fallen into the

apparatus, the apparatus has been exposed to

rain or moisture, does not operate normally, or

has been dropped.

14. Maintain a minimum distance of 50 mm

around the front, rear and sides of the

apparatus for sufficient ventilation. The

ventilation should not be impeded by covering

the ventilation openings or placing on or

around the apparatus items such as

newspapers, table-cloths, curtains, etc.

15. No naked flame sources, such as lighted

candles, should be placed on the apparatus.

16 The apparatus shall not be exposed to

dripping or splashing. No objects filled with

liquids, such as vases, shall be placed on the

apparatus.

17. The apparatus is suitable for use in

tropical and/or moderate climates.

Description

Boston’s PV700 and PV900 subwoofers deliver the dynamic bass foundation that is essential for lifelike reproduction of

movie soundtracks and music in the home. These attractive powered subwoofers will complement any stereo or home

theater surround sound system with their impressive bass output and compact size.

Both subwoofers utilize our rugged DCD™ (Deep Channel Design) bass unit designed in Boston’s state-of-the-art

engineering facility in Peabody, Massachusetts. Every one is tested as it comes off the line to be within ±1dB of the lab

reference unit, an incredibly tight tolerance. The amplifiers have built-in variable crossovers that allow them to easily

achieve a seamless blend with the main speakers, while a 24dB/octave low-pass filter prevents the subwoofers from

being easily localized by ear, increasing placement flexibility. A crossover bypass function is provided for use with home

theater electronics that perform their own bass management.

Because of their high-powered amplifiers and computer-optimized tunings, the PV700 and PV900 are capable of impres-

sive 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.

Auto on-off amplifier switching and easily accessible controls make the PV700 and PV900 subwoofers as convenient to

use as they are exciting to listen to.

Specifications*

PV900 PV700

Frequency Response (±3dB) 26–150Hz 29–150Hz

Subwoofer Amplifier Power FTC Rated Power: 300 watts @ 50 Hz FTC Rated Power: 200 watts @ 50 Hz

into 4 ohms at less than 1% THD+N into 4 ohms at less than 1% THD+N

Subwoofer Crossover 50–150Hz 50–150Hz

24dB/octave low-pass 24dB/octave low-pass

LFE Input Yes Yes

Crossover Bypass Yes Yes

Bass Unit 12" (305mm) DCD 12" (305mm) DCD

down-firing down-firing

Enclosure Type Rear-ported Rear-ported

Dimensions (HxWxD) 155/8 x 141/2 x 171/2"14

1/4 x13

1/2 x 163/4"

(with feet and (397 x 369 x 445mm) (362 x 343 x 426mm)

rear connectors)

Weight 32 lbs (14.4kg) 28 lbs (12.6kg)

Finish Black ash vinyl veneer Black ash vinyl veneer

*In keeping with our policy of continual product improvements, specifications are subject to change without notice. Please visit our web

page, www.bostonacoustics.com, for the latest specifications on these two products.

Connections

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

the power toggle switch located in the lower left corner of 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.

Line level: Use one of the “line level in” jacks with most systems. These inputs accept the line-level signal from your

receiver’s subwoofer output. When using the “use crossover control” input, the subwoofer’s circuitry filters out the high

frequencies and sends the remaining low frequencies to the subwoofer power amplifier.

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. NOTE: Certain receivers use speaker grounding

circuits that may be incompatible with external powered audio products, such as powered subwoofers. When speaker

wire is used instead of line level cables, this incompatibility can sometimes result in an audible hum when the receiver is

turned off or switched to a different speaker channel. See page 8 for more information.

How to Connect Using the Speaker Terminals

We recommend 18-gauge wire or thicker for runs up to 15 feet (4.5m), and 16-gauge wire or thicker for longer runs.

Separate the first few inches of the wire conductors. Strip off 1⁄2-inch (12mm) of insulation from the ends of each speaker

wire to expose the two conductors and tightly twist the wire strands.

WARNING: To prevent electrical shock hazard, always switch off the amplifier or receiver when making connections to

the speaker.

When making all connections, be sure to connect the +(red) on the speaker to the +(red) on the amplifier, and

the –(black) on the speaker to the –(black) on the amplifier.

IMPORTANT: Typically, one side of

the wire is smooth. Connect this side

to the –(black) connection. The other

side has a rib or stripe. Connect this

to the +(red) connection.

–

Using This Manual – PV700 versus PV900

NOTE: The rear amplifier panels of the PV700 and the PV900 are virtually the same. Although the instructional images

on the following pages depict the PV700’s rear panel, the PV900 connects, functions and operates in exactly the same

manner.

Using the five-way binding posts: The binding posts permit easy

connection to banana plugs, spade lugs, and bare wire. Insert the wire in the

hole (as shown on left) or a 3/8-inch spade lug over the post and tighten. For

banana plugs, remove the red and black caps from the end-holes and insert

either dual or single banana plugs (as shown on right).

PowerVent Powered Subwoofer

PV700

Featuring BassTrac®

CAUTION: Disconnect supply cord

before replacing fuse. For continued

protection against risk of fire, replace only

with same type fuse.

ATTENTION: Debrancher avant de

remplacer le fusible. Utiliser un fusible de

rechange de même type.

* use crossover control: removes high

frequencies; use with sources lacking suitable

filtering (most products without Dolby Digital

or DTS), or where manual control is desired.

** bypass crossover control: direct to woofer;

use with sources having built-in crossover

controls or bass management (most products

with Dolby Digital or DTS).

T 2.5A L 250V

120V ~ 60Hz 2.5A

off

power

C US

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

AVIS: RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR

left right

speaker level in

80 120

150

crossover (Hz)

power indicator

0º180 º

polarity

use

crossover

control *

bypass

crossover

control **

line level in

power mode

auto

Use only with a 250V fuse

Employer uniquement avec

un fusible de 250V

Use only with a 250V fuse

Employer uniquement avec

un fusible de 250V

Connecting the Subwoofer to Digital Home Theater Systems

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

low-frequency (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.

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

Connect the other end to the PV700 or PV900 jack labeled “bypass crossover control” underneath “line level in”.

Be sure to connect +to +

(red) and –to –(black).

If you do not wish to run RCA cables to your subwoofer, you may use speaker wire to connect the subwoofer in parallel

with your main speakers (see diagram below). The subwoofer does not present any additional load to your receiver.

Select “subwoofer-no” from your receiver’s set-up menu. This sends the LFE signal to the main left and right speakers,

and thus, to the subwoofer. Consult your receiver’s owner’s manual for more details.

When using the speaker wire hookup, 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 (for

Boston Acoustics front speakers, refer to the included “Optimal Crossover Settings...”sheet). 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.

BACK OF RECEIVER

left right

front

speakers

to main

speakers

PowerVent Powered Subwoofer

PV700

Featuring BassTrac®

CAUTION: Disconnect supply cord

before replacing fuse. For continued

protection against risk of fire, replace only

with same type fuse.

ATTENTION: Debrancher avant de

remplacer le fusible. Utiliser un fusible de

rechange de même type.

* use crossover control: removes high

frequencies; use with sources lacking suitable

filtering (most products without Dolby Digital

or DTS), or where manual control is desired.

** bypass crossover control: direct to woofer;

use with sources having built-in crossover

controls or bass management (most products

with Dolby Digital or DTS).

off

power

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

AVIS: RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR

left right

speaker level in

80 120

150

crossover (Hz)

power indicator

0º180 º

polarity

use

crossover

control *

bypass

crossover

control **

line level in

power mode

auto

Use only with a 250V fuse

Employer uniquement avec

un fusible de 250V

Use only with a 250V fuse

Employer uniquement avec

un fusible de 250V

T 2.5A L 250V

120V ~ 60Hz 2.5A

C US

BACK OF RECEIVER

SUBWOOFER OUT

Controls

PowerVent Powered Subwoofer

PV700

Featuring BassTrac®

CAUTION: Disconnect supply cord

before replacing fuse. For continued

protection against risk of fire, replace only

with same type fuse.

ATTENTION: Debrancher avant de

remplacer le fusible. Utiliser un fusible de

rechange de même type.

* use crossover control: removes high

frequencies; use with sources lacking suitable

filtering (most products without Dolby Digital

or DTS), or where manual control is desired.

** bypass crossover control: direct to woofer;

use with sources having built-in crossover

controls or bass management (most products

with Dolby Digital or DTS).

T 2.5A L 250V

120V ~ 60Hz 2.5A

off

power

C US

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

AVIS: RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR

left right

speaker level in

80 120

150

crossover (Hz)

power indicator

0º180 º

polarity

use

crossover

control *

bypass

crossover

control **

line level in

power mode

auto

Use only with a 250V fuse

Employer uniquement avec

un fusible de 250V

Use only with a 250V fuse

Employer uniquement avec

un fusible de 250V

Connecting the Subwoofer to Stereo or Dolby®Pro Logic®Systems

For stereo or Dolby Pro Logic systems, the easiest method is to use the same speaker wire connections as shown on page 5.

You may also use the “sub out” connection from your receiver to the input on the subwoofer marked use crossover

control. When using speaker wire or the use crossover control 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 (for Boston Acoustics front speakers, refer to the included “Optimal Crossover Settings...”sheet). 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.

BACK OF RECEIVER

SUBWOOFER OUT

80 120

150

crossover (Hz)

0º180 º

polarity

off

power

Main power switch Volume (on front panel)

Adjusts the sound level of

the subwoofer. A typical

setting is around 11:00

o’clock, as shown.

Crossover (Hz) Polarity (0° or 180°)

Completely turns all power

to the amplifier either on or

off and over-rides the power

mode switch. This switch

must be turned on before

setting the power mode

switch (see next page).

Adjusts the frequency of

the low-pass filter for

the subwoofer. This

control is inactive when

using the “bypass crossover

control” input jack.

Selects regular (0°) or inverted

(180°) polarity 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.

Power indicator: This two-

color power status light will

be red when the Power

Mode Switch is set to auto

(without any audio signal

present) and green when set

to on mode.

It will not light up at all until

the Main Power switch is set

to the on position.

auto

Controls (con’t)

Auto: When set to this position, the subwoofer’s auto-on

circuitry turns the amplifier on when an audio signal is presented

(turning the power indicator light green), and turns it off in

approximately 15 minutes if no signal is detected (turning the

power indicator red).

Placement

Place the subwoofer next to a wall or in a corner near your main speakers. Typically, the sound is best when the subwoofer

is within 15 feet (4.5m) of the main speakers. However, the sharp 24dB/octave crossover roll-off permits placement farther

from the main speakers if necessary. Since the ear is unable to localize the low frequencies of the subwoofer, the bass still

appears to come from the main speakers. In most cases, the subwoofer may be placed anywhere in the listening room.

The level of bass output from the subwoofer will vary at different positions in a room. When placed near walls, its loudness

is emphasized. Corner placement provides the most bass output, while placement near only one wall will provide some-

what less bass. Placement completely away from walls may produce too little bass. Regardless of how you place the sub-

woofer, you can adjust the subwoofer’s level with its volume control. If you move the subwoofer, recheck the setting of the

polarity switch. Use the setting that yields the louder and more dynamic sound.

IMPORTANT: Do not place the subwoofer where there is a chance of contact between the rear panel and drapes or

furniture. Avoid obstructing air flow to the back.

Position subwoofer

in corner for maximum

bass output

On: When set to this position, the subwoofer’s auto-on

circuitry is bypassed and the amplifier will remain on whether

an audio signal is present or not (the power indicator light

stays green).

Power mode switch

NOTE: The Main Power Switch needs to be in the on position before this switch is active.

power indicator

DCD is a trademark and BassTrac, Boston and Boston Acoustics are

registered trademarks of Boston Acoustics, Inc. Dolby and Dolby Pro Logic

are registered trademarks of Dolby Laboratories Licensing Corporation.

Specifications subject to change without notice. 042-001685-0

Or visit our web site at:

www.bostonacoustics.com

If Speaker Wire Connections Cause the Subwoofer to Hum

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

such as powered 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.

If you do not wish to make your own

grounding cable, please contact the

Boston Acoustics Customer Service

Department directly (see below) and we

will promptly ship one to you of suitable

length at no charge.

80 120

150

crossover (Hz)

use

crossover

control *

bypass

crossover

control **

line level in

AUDIO

VIDEO

S VIDEO

V-AUX

VCR

OUT

D-TV

/CBL

DVD

S VIDEO

VIDEO

SUB

WOOFER

MONITOR OUT

OUTPUT

MONITOR

OUT

D-TV

/CBL

DVD

ANT

(PLAY)

/CD-R

OUT

(REC)

Ω UNBAL.

UNBAL.

TUNER

COMPONENT VIDEO

DIGITAL

OUTPUT

DIGITAL

INPUT

6 CH INPUT

COAXIAL

MAIN

SUB

WOOFER

DVD

MD/CD-R

OPTICAL

D-TV/CBL

PB/C

PR/C

SURROUND

CENTER

ANT

GND

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

BACK OF RECEIVER

BACK OF SUBWOOFER

use either RCA jack

use any

available

RCA jack

Or email us at:

[email protected]

300 Jubilee Drive

Peabody, MA 01960 U.S.A.

978.538.5000

www.bostonacoustics.com

If Service Seems Necessary

First, contact the dealer from whom you purchased the PV700 or PV900. If that is not possible, write to:

Customer Service

Boston Acoustics, Inc.

300 Jubilee Drive

Peabody, MA 01960 U.S.A.

We will promptly advise you of what action to take. If it is necessary to return your unit to the factory, please ship it

prepaid. After it has been repaired, we will return it freight prepaid in the U.S. and Canada.

Limited Warranty

For one year from the date of purchase, Boston Acoustics will repair for the original owner any defect in materials

or workmanship that occurs in normal use of the subwoofer, without charge for parts and labor.

Your responsibilities are to use the system according to the instructions supplied, to provide safe and secure

transportation to an authorized Boston Acoustics service representative, and to present proof of purchase in the

form of your sales slip when requesting service.

Excluded from this warranty is damage that results from abuse, misuse, improper installation, accidents, shipping,

or repairs/modifications by anyone other than an authorized Boston Acoustics service representative. This warranty

is limited to the Boston Acoustics product and does not cover damage to any associated equipment. This warranty

does not cover the cost of removal or reinstallation.

This warranty is void if the serial number has been removed or defaced. This warranty gives you specific legal

rights, and you may also have other rights which vary from state to state.

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