User Guide

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Features

High power

Extremely low distortion

Long-term reliability

Rugged

Applications

Road use or installations

Sound reinforcement

Concert, film, and theater

Live music clubs and discos

Bass instrument amplification

— 12

–

— 9

–

— 6

–

— 3

–

— 0

Inches

650-R2

Concert Series

Subwoofer

Meyer Sound Laboratories, Inc.

2832 San Pablo Avenue

Berkeley, CA 94702

(

510

) 486-1166

FAX (

510

) 486-8356

The 650-R2 requires a professional qual-

ity two-channel power amplifier capable

of delivering 200 to 300 watts continuously

into 8 ohms or 400 to 600 watts into a

4 ohm load (drivers connected in parallel),

with a signal voltage gain of 20 dB (mini-

mum) to 30 dB (maximum).

The 650-R2 Subwoofer extends the

power bandwidth of Meyer Sound rein-

forcement systems to 30 Hz. Accurate and

rugged, this powerful subwoofer consists

of two 18-inch cone drivers capable of long

excursion with extremely low distortion,

set in a heavily braced 14 cubic foot vented

enclosure of multiple-ply hardwood.

Fitted with handles and a pair of high-

density rubber casters, the roadworthy

cabinet is dimensioned in submultiples of

90", the U.S. internal truck width standard.

Summary of content (4 pages)

PAGE 1
Features High power Extremely low distortion Long-term reliability 650-R2 Rugged Concert Series Subwoofer Applications Road use or installations Sound reinforcement Concert, film, and theater Live music clubs and discos Bass instrument amplification — – – — – – — – – — – – — 12 9 6 3 0 Inches The 650-R2 Subwoofer extends the power bandwidth of Meyer Sound reinforcement systems to 30 Hz.
PAGE 2
650-R2 Specifications Acoustical – 650-R2/B-2EX System Frequency Response1 Maximum SPL2 Continuous Peak Acoustical Crossover Frequency 130 dB 135 dB 100 Hz 650-R2 Loudspeaker Transducers Enclosure Finish Protective Grill Connector Wheels Physical Dimensions Weight (2) MS-18 18-inch cone drivers, 8 ohms per driver 14 cu. ft.
PAGE 3
The B-2EX Control Electronics Unit 8 Safe Excursion Out Power UltraSeries™ B-2EX Crossover Sense Limit The 650-R2 operates as a system with the B-2EX Control Electronics Unit (one per channel). Optimized for use with Meyer Sound subwoofers, and pre-aligned at the factory, the B-2EX contains frequency response and phase response alignment circuitry, and Meyer Sound’s exclusive SpeakerSense™ driver protection circuitry, incorporating RMS signal limiting and switchable excursion limiting.
PAGE 4
Architectural and Engineering Specifications Meyer Sound Laboratories has 650-R2/B-2EX devoted itself to designing, manufacturing, and refining components that deliver superb sonic reproduction.