Meyer Sound 650-R2 - User Manual

Meyer Sound Laboratories, Inc.
2832 San Pablo Avenue
Berkeley, CA 94702
650-R2
Reinforcement
Subwoofer
Operating Instructions
The 650-R2 is designed to be operated as a
system with the Meyer Sound B-2EX Control
Electronics Unit. The B-2EX comprises elec-
tronic crossover, Meyer Sound exclusive
SpeakerSense™ driver protection circuitry, and
amplitude and phase response alignment cir-
cuitry optimized for the loudspeaker.
The Meyer Sound 650-R2 is a high-power sub-
woofer loudspeaker designed to extend the
power bandwidth of Meyer Sound reinforcement
systems to 30 Hz. The system consists of two
18-inch cone drivers in a heavily braced 14 cu.
ft. vented enclosure. The dimensions of the
cabinet are submultiples of 90", the U.S. internal
truck width standard. The cabinet is fitted with
handles and high-density rubber casters.

Summary

Product Overview

Amplifier Requirements

Connections

Verifying System Polarity

Single Cabinets Polarity Test

Procedure to verify polarity of individual drivers using a 9-volt battery.

Multiple Cabinets Polarity Test

Method to verify correct polarity between multiple cabinets using test equipment.

Verifying Crossover to Full-Range System

Arraying Techniques

Line Arrays

Using line arrays for directional control and projection of low-frequency energy.

Ring Array Configuration

Description of a circular array for projection characteristics in theme park applications.

Technical Specifications

Acoustical System Specifications

Details frequency response, maximum SPL (continuous and peak) for the system.

650-R2 Loudspeaker Specifications

Lists driver complement, enclosure, finish, dimensions, weight, connector, and wheels.

Meyer Sound 650-R2 Specifications

Acoustic Specifications

frequency response	35 to 110 Hz ±4dB
maximum SPL continuous	125 dB
maximum SPL peak	130 dB

Driver and Enclosure

driver complement	Two MS-18 18" cone driver, 8 ohms each
enclosure volume	14 cu. ft.
enclosure material	multi-ply Finnish Birch

Physical Attributes

dimensions	45"H x 30"W x 22 1/2"D
weight	176 lbs (79.8 kg)
wheels	Two 3" diameter rubber tread rigid self-lube casters