User manual

ManualsBrandsMeyer Sound Manualsaudio & home theatreSpeaker System USM-1

Operating Instructions

Meyer Sound Laboratories, Inc.

2832 San Pablo Avenue

Berkeley, CA 94702

USM-1

The Meyer Sound USM-1 is a high-powered, wide

coverage loudspeaker for professional stage moni-

toring applications. Specifically designed for tour-

ing reinforcement, the accurate, rugged USM-1 is

a biamplified system consisting of a proprietary 15-

inch low-frequency driver in a vented enclosure,

and a 70-degree high-frequency horn with a 2-inch

(throat diameter) driver.

The USM-1 is designed to be operated as a sys-

tem with the Meyer Sound S-1 Control Electronics

Unit (one S-1 per channel). The S-1 comprises

electronic crossover, Meyer Sound exclusive

SpeakerSense™ driver protection circuitry, and

amplitude and phase response alignment circuitry

optimized for the loudspeaker.

Summary of content (4 pages)

PAGE 1
USM-1 Operating Instructions The Meyer Sound USM-1 is a high-powered, wide coverage loudspeaker for professional stage monitoring applications. Specifically designed for touring reinforcement, the accurate, rugged USM-1 is a biamplified system consisting of a proprietary 15inch low-frequency driver in a vented enclosure, and a 70-degree high-frequency horn with a 2-inch (throat diameter) driver. Meyer Sound Laboratories, Inc.
PAGE 2
USM-1 Amplifier Requirements Connections Operating Instructions The USM-1 requires a professional quality twochannel power amplifier rated at 300 watts per channel minimum (and not exceeding 1000 watts per channel) continuous into 8 ohms. (If two USM-1’s are to be operated in parallel from the amplifier, it should be capable of driving 4 ohms.
PAGE 3
USM-1 Operating Instructions 2. Multiple Cabinets. Each cabinet should first be tested as above. • Connect one loudspeaker and advance the pink noise to a convenient measuring level. Position the measuring microphone between the two adjacent loudspeakers, and about six feet distant. Note the frequency response and overall level. • Leaving the first loudspeaker connected, con- nect the adjacent one and observe the analyzer display.
PAGE 4
USM-1 Specifications Operating Instructions Acoustical - USM-1/S-1 System Frequency response1 40-18k Hz ±4 dB Maximum SPL2 Continuous Peak 130 dB 139 dB HF Distribution Pattern Horizontal Vertical 70 degrees 60 degrees USM-1 Loudspeaker Driver Complement Low Frequency Driver High Frequency Driver MS-15 MS 2001A High Frequency Horn 70 degree modified radical HF DC Protection 20µF Polypropylene capacitor Enclosure 2.3 cu. ft.