Boston Acoustics VR-M60, VR-M50 User's Manual

VR-M50
VR-M60

Lynnfield VR™Series

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Specifications VR-M60 VR-M50

Frequency Response (±3dB) 51–20,000Hz 59–20,000Hz

Recommended Amplifier Power 15–200 watts 15–150 watts

Nominal Impedance 8 ohms 8 ohms

Sensitivity [1 watt (2.83v) at 1m] 90dB 89dB

Bass Unit 61⁄2

" (165mm) DCD copolymer 5

1

⁄4

" (135mm) copolymer

Tweeter 1

" (25mm) black anodized 1

" (25mm) black anodized

aluminum dome aluminum dome

Crossover Frequency 2700Hz 3100Hz

Dimensions (HxWxD) 113⁄4 x 85⁄16 x 117⁄8" (299 x 212 x 303mm) 97⁄8 x 71⁄8 x 9" (251 x 181 x 230mm)

Weight 17 lbs (8kg) 12 lbs (5.5kg)

Finish Cherry or black ash wood veneer with Cherry or black ash wood veneer with

glossy gray top panel glossy gray top panel

Description

The VR-M50 and VR-M60 are compact, monitor-quality speakers designed to deliver accurate, natural reproduction,
with an elegant appearance.

Special care has been taken to optimize the speakers’ components for maximum performance: The bass units uti­lize die-cast aluminum baskets that keep the critical moving parts in precise alignment for exceptionally accurate
response. The cast baskets also conduct heat away from the voice coil, increasing power handling and maximizing
output. The woofer cones and surround geometry were designed and optimized with Boston’s Finite Element
Analysis (FEA) computer modeling technology, for strong bass and smooth midrange.

High frequencies are handled by Boston’s exclusive 1-inch (25mm) aluminum tweeter with Amplitude Modification
Device

™

(AMD). This remarkable driver produces an extremely smooth, flat response well beyond the audible
range. A die-cast aluminum heatsink attached to the tweeter’s backplate dissipates heat quickly and efficiently,
assuring cool, trouble-free operation, even at very high power levels.

The drivers are positioned very closely to each other for smooth, uniform radiation in both the horizontal and verti­cal planes. Inside the cabinets are heavy ”window-pane” braces to assure strength and rigidity, while minimizing
cabinet resonances. The rear-mounted vent is smoothly flared at both ends to reduce port turbulence, and both
speakers feature dual gold-plated binding posts, allowing bi-wiring or bi-amping with virtually any cable.

All the drive units are designed at Boston’s Peabody, Massachusetts facility using state-of-the-art computer-design
programs, and are built on Boston’s proprietary production lines to an incredible ±1dB—perhaps the industry’s tightest
tolerance. Both systems feature MagnaGuard

®

magnetic shielding for compatibility with home theater systems.

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How to Connect Your Speakers

Correctly wiring your speakers is important for achieving the best sound quality. Wiring should take just a few
minutes, but it’s important to do it carefully, since incorrect wiring (such as reversed connections) can result in a poor
soundstage and poor bass.

We recommend 18-gauge wire or thicker for runs up to 25 feet (8m), and 16-gauge wire or thicker for longer runs.
Separate the first few inches of the wire conductors. Strip off

1

⁄2" (12mm) of insulation from the ends of each speak-

er 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 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 and tighten.

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