Boston Acoustics VR-MX Manual de usuario

VR-MX

Wide Dispersion

Home Theater

Surround Speaker

VRMX Manual2/9/01 12:16 PM Page 1

Speciﬁcations

Frequency Response (±3dB) 80–20,000Hz

Recommended Ampliﬁer Power 15–200 watts

Nominal Impedance 8 ohms

Sensitivity [1 watt (2.83v) at 1m] 90dB

Bass Unit 51⁄4" (135mm) copolymer

Passive Radiator 51⁄4" (135mm) copolymer

High-Frequency Driver Dual 1" (25mm) VR aluminum dome with AMD

Crossover Frequency 2500Hz

Dimensions (HxWxD) 11 x 115⁄16 x 515⁄16" (279 x 286 x 151mm)

Weight/each 9 lbs (4.25kg)

Finish Cherry wood veneer with gray grille cloth

or black ash wood veneer with black grille cloth

or white vinyl with white grille cloth

Description

The Lynnﬁeld VR-MX surround speaker delivers the wide frequency response, high power-handling

and placement ﬂexibility required by the ﬁnest home theater systems. Its unique driver

complement creates an enveloping sense of surround sound, simulating the multiple surround

speakers found in a quality movie theater.

The VR-MX is a high output, wide dispersion surround speaker. It provides the rear channel

surround sound effects with Dolby®Digital, DTS®and Dolby®Pro-Logic®decoding electronics.

The VR-MX may be placed on a shelf or mounted on a wall or ceiling using the supplied template,

mounting hardware and bracket. Gold-plated ﬁve-way binding posts allow the connection of

virtually any speaker cable. Its unique design allows for it to be used to create a seemingly larger

or more intimate acoustic space, depending upon how it is oriented relative to the listening space.

Direct vs. Diffused Sound Pattern

The VR-MX represents a product evolution based upon our considerable experience with direct

and diffused radiating surround speakers. The surround channels from a movie soundtrack are

designed to help the moviemaker transform the theater into the environment that is being

portrayed on the screen. Since a movie theater is a relatively large space, several surround

speakers are placed along the theater’s walls. If you would like your listening room to sound more

like a larger acoustic space and more like a movie theater or live music performance venue, then

the VR-MX should be placed so that the speakers’ passive radiators acoustically interact with most

VRMX Manual2/9/01 12:16 PM Page 2

of the room. This is accomplished by mounting the speaker so that the diffuse side of the arrow on

the back of the speaker is aimed toward the bulk of the listening area. If you prefer the surround

effects to be more discreet and localized, then you should mount the speakers so that the direct side

of the arrow on the back of the speaker is aimed toward the bulk of the listening area. In either case,

the best results will be obtained if the VR-MX is mounted above ear level and out at least 20 inches

from the corner. However, it has been our experience that satisfactory results can be obtained with a

wide variety of placement choices.

Direct Conﬁguration Diffuse Conﬁguration

The VR-MX can be placed on the side or back walls, as well as hung from the ceiling. Recommended

placement is above ear level on the side walls opposite the primary listening position, ideally 20

inches or more out from the back wall. However, experimentation will yield the best possible results

for every room. If possible, permanent mounting of the VR-MX should only be done after the

optimum location is determined.

In general, surround speakers are either directional or diffuse. Directional surround speakers provide

a high degree of localization, and are considered best for music. Diffuse surround speakers are

difficult to localize, and are considered best for movies. The VR-MX can be used in either manner.

The VR-MX surround speaker is shipped in mirror-image pairs. Refer to the label on the back of the

VR-MX to assist you in placing the speakers for the desired result (see the label picture on page 5).

After mounting the wall brackets, experimentation between direct and diffused patterns can be

easily achieved simply by swapping the right and left speakers.

MOUNTING TIPS: Use the supplied template to aid in positioning the mounting bracket. At least 4

inches of clearance is required between the top of the template and the ceiling. Please take care

that the mounting brackets are attached securely to the chosen surface. Toggle bolts are supplied

for use on drywall or hollow plaster walls. Alternatively, you may wish to obtain wood screws for

wood or wall studs, molly bolts or screw anchors for drywall or plaster walls, or masonry anchors for

masonry walls. You can also just place the speakers to sit upright on a shelf or other ﬂat surface. In

this case, be sure to use the supplied self-adhesive rubber feet to prevent any possible slippage.

Direct

VRMX Manual2/9/01 12:16 PM Page 3

One or both of the VR-MX speakers may be

hung from the ceiling. Make sure the DIRECT

or DIFFUSE arrows on the rear label points to

the listening area for your desired effect.

Room Placement

Room placement is one of the most important

factors contributing to the quality of home

theater sound. Take a few minutes to place

your speakers correctly to ensure they will

sound their best.

Place the VR-MX speakers on either side of the

listening area.

If the listening position is against the wall,

place the speakers to either side, no less than

20" (50cm) from the rear wall.

VRMX Manual2/9/01 12:16 PM Page 4

IMPORTANT: Your speakers have been

packed as a DIRECT or DIFFUSE matched

set. Make sure that each speaker is mounted

on the desired side, with the active bass driver

(smaller dust cap) pointing to the listening

area for a DIRECT sound ﬁeld or the passive bass

driver (larger dust cap) pointing to the listening area for a DIFFUSE sound ﬁeld. The end result is that

the DIRECT and DIFFUSE arrows on the back of each speaker will be pointing in the same direction

on either side of the room.

If the viewing area is in a corner, the speakers

may be placed to either side on adjacent

walls.

Connecting Your VR-MX Speakers

Connect the speaker’s terminals to those on the ampliﬁer or receiver designated for “surround” or

“rear channel effects.” Maintain consistency of the +(red) and –(black) connections by using the

markings on the wire. Connect the ribbed side to the +(red) terminals and the smooth side to the

–(black) terminals.

WARNING: To prevent electrical shock, always switch off the ampliﬁer or

receiver when making connections to the speaker.

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

connection to pins, spade lugs, bare wire and cable banana plugs.

The metal surfaces are plated with 24K gold to resist corrosion.

NOTE: Most dual banana plugs will not ﬁt behind a ﬂush wall mount

installation, however single wire banana plugs should ﬁt.

Boston Acoustics, Inc. Peabody, MA 01960

Made in USA

VR-MX

8 ohms

PZ 000101 A

DIFFUSE

SOUND RADIATION

DIRECT

DIFFUSE

Consult manual for orientation best

suited to your listening

environment.

Wide Dispersion Surround Speaker

For DIRECT Radiating

Position VR-MX

with DIRECT

arrow facing the

listening area.

For DIFFUSE Field

Surround Effects:

Position VR-MX

with DIFFUSE

arrow facing the

listening area.

Surround Effects:

Boston Acoustics, Inc. Peabody, MA 01960

Made in USA

VR-MX

8 ohms

PZ 000101 B

DIFFUSE

SOUND RADIATION

DIFFUSE

DIRECT

Consult manual for orientation best

suited to your listening

environment.

Wide Dispersion Surround Speaker

For DIFFUSE Field

Position VR-MX

with DIFFUSE

arrow facing the

listening area.

For DIRECT Radiating

Surround Effects:

Position VR-MX

with DIRECT

arrow facing the

listening area.

Surround Effects:

SOUND RADIATION

ORIENTATION LABELS

These labels are located on

the rear of each VR-MX.

Note that the speakers are

conﬁgured as mirror

imaged pairs.

VRMX Manual2/9/01 12:16 PM Page 5

Wall or Ceiling Mounting Your VR-MX Speakers

The VR-MX is designed to be mounted directly onto a wall or ceiling. First attach the eight supplied

self-adhesive felt pads, one on the back of each corner of both speakers. Then attach the bracket to

the wall or ceiling and slide the speaker on to the bracket as shown below and on the next page.

You may run wires to the speakers on the wall surface or behind the wall. Use the recessed area on

the back of the speaker to accommodate the wire slack.

Mounting on drywall, paneling or other hollow surfaces: Use the 6-32 x 2" machine screws and

toggle wings provided. The toggle wings require a 1⁄2" (12mm) hole.

Mounting on wood and other solid surfaces:

Use a #6 or #8 wood screw.

Mounting on masonry, adobe and similar surfaces: Consult a knowledgeable installer about

proper hardware. You will obtain best results with #6 or #8 wood screws.

IMPORTANT: Your speakers have been packed as a DIRECT or DIFFUSE mirror imaged matched

set. Make sure that each speaker is mounted on the appropriate side to yield the desired surround

effect (see “Direct vs. Diffuse Sound Pattern” on pages 2 and 3). The arrows on the back of each

speaker indicate the DIRECT or DIFFUSE radiation pattern (see label picture on page 5).

(51mm)

21⁄2"

(63mm)

MOUNTING

1. Mark off the two bracket mounting

holes using the VR-MX Mounting

Template provided. If running wires

behind the wall, then also mark off a 1⁄2"

(12mm) hole located at 21⁄2" (63mm)

below the lower bracket hole. This hole

is also positioned on the template.

INCLUDED HARWARE

(2) mounting

brackets

(4) toggle wing screws

(8) rear

felt pads

(8) rubber feet for

shelf mounting

VRMX Manual2/9/01 12:16 PM Page 6

Listening Levels and

Power Handling

IMPORTANT: Adjusting Listening Volume. To obtain the best home theater effect, balance the

sound level of each speaker. Home theater systems contain a test signal that simpliﬁes this

procedure. Refer to the instructions provided with your surround sound electronics.

The power recommendation for the speaker assumes the ampliﬁer is not overdriven, which, over a

long period, can damage even our rugged speakers. If you hear a harsh, gritty noise on peak levels,

turn down the volume control. Prolonged or repeated operation with a distorted signal from the

ampliﬁer can cause damage to the speakers, which is not covered by the warranty.

Drill 1⁄2" (12mm) holes

toggle wings

Level bracket

before hanging

speaker

6-32 x 2"

machine screws

2. Drill all holes as indicated. Insert the

machine screws through the bracket and

thread them onto the toggle wings before

penetrating the wall. Push the toggle

wings through the holes in the wall.

3. Level the bracket and tighten the screws.

Connect the wires to the terminals and hang

the speaker on the brackets, so the DIRECT

or DIFFUSE arrow on the label points to the

front of the home theater area according to

your preference (see page 3).

VRMX Manual2/9/01 12:16 PM Page 7

Limited Warranty

For ﬁve years 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 speaker system, 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, accidents, shipping or repairs

or modiﬁcations by anyone other than an authorized Boston Acoustics service representative.

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.

If Service Seems Necessary

First, contact the retailer from whom you purchased the speaker. If that is not possible, write to:

Boston Acoustics, Inc., 300 Jubilee Drive, Peabody, MA 01960.

Send us:

1. Your name, address and daytime telephone number.

2. When and where you purchased the speaker system and a copy of your sales slip.

3. Makes/models of your signal sources and ampliﬁer.

4. Description of the problem.

5. Whether you have the original carton and ﬁllers or need new ones.

We will promptly advise you of what action to take. If it is necessary to return your speaker to the

factory, please ship it prepaid. After it has been repaired, we will return it freight prepaid in the U.S.

and Canada.

300 Jubilee Drive

Peabody, MA 01960

978-538-5000

Boston and Boston Acoustics are registered trademarks and

Lynnﬁeld VR is a trademark of Boston Acoustics, Inc. Dolby and

Dolby Pro Logic are registered trademarks of Dolby Laboratories

Licensing Corporation.

Speciﬁcations subject to change without notice.

042-001201-0

VRMX Manual2/9/01 12:16 PM Page 8

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