Boston Acoustics VR-MX User's Manual

VR-MX

Wide Dispersion Home Theater Surround Speaker

VRMX Manual 2/9/01 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

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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.

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