Instruction/ maintenance manual of the product USW-1P Meyer Sound
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Operating Instructions USW-1P (Serial Numbers 981000 and above) Self-Powered Subwoofer Copyright © 1997 Meyer Sound Laboratories, Inc. All rights reserved PN: 05.
2 Contents Pour indiquer les risques résultant de tensions dangereuses Zu die gefahren von gefährliche spanning zeigen Important operating instructions Pour indequer important instructions Zu wichti.
3 Introduction The Integrated Design The Meyer USW-1P self-powered subwoofer is composed of: • t wo 15 - inch cone drivers. • phase-corrected, optimized control electronics; • a two-channel amplifier ( 5 50 watts total ). The drivers, control electronics, and amplifier are integrated into a compact enclosure.
4 Current Requirements Each USW-1P requires approximately 3 A rms @115V (1.5 A rms @230V) for proper operation, allowing up to five USW- 1P to be powered from one 15 A circuit. However, we recom- mend powering no more than three USW-1Ps per 15 A branch to allow a 30% margin for peak voltages.
5 The Modular Rear Panel The rear panel of the USW-1P has two slots for modules. The top slot contains the Audio Input Module ; the bottom slot contains the optional Remote Moni toring System™ (RMS) Module . A blank plate covers the bottom slot if RMS is not installed.
6 If either LED remains on for longer than three seconds, that channel incurs these consequences: • Increasing the input level will not increase the volume.
7 Full-Range Systems Introductory Concepts The USW-1P is used to add low frequency SPL to sound systems. It is optimized to be used with the Meyer UPA-P series self-powered loudspeakers. It can also be used with all Meyer Sound loudspeakers. For information on integrat- ing the USW-1P with the UPA-P, see the UPA-P Series Operating Instructions.
8 -8 -6 -4 -2 0 2 4 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 Distance in meters between wall and acoustical center of speaker. dB SPL relative to free-space response.
9 Verifying Driver Polarity Incorrect driver polarity impairs system performance and may damage the drivers. All Meyer loudspeakers are shipped with the drivers in correct alignment. Polarity In Adjacent Loudspeakers Use the following test procedure to verify the polarity be- tween two USW-1P.
10 Troubleshooting This section suggests several possible solutions to some com- mon problems encountered by USW-1P users and is not intended to be a thorough troubleshooting guide. Contact Meyer Sound for additional information and documentation. The On/Temp.
11 • To reduce the risk of electric shock, disconnect the loudspeaker from the AC mains before installing audio cable. Reconnect the power cord only after making all signal connections. • Connect the loudspeaker to a two-pole, three wire grounding mains receptacle.
12 Rear Panel and Optional Modules User Panel with RMS option and Standard Looping Audio Input Module. Looping, Polarity, and Attenuating Input Module Summing Audio Input Module The user panel and optional modules are described on page 5 of this guide.
13 Dimensions (in inches) Meyer Sound Laboratories, Inc. 2832 San Pablo Avenue Berkeley, California 94702 Telephone: 510 - 486 - 1166 F A X : 510 - 486 - 8356 E-mail: t echsupport@meyersound.com http://www.meyersound.com AC Input 100-240V ~ 50-60Hz 4A MAX ! Meyer Sound, Berkeley, CA.
An important point after buying a device Meyer Sound USW-1P (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Meyer Sound USW-1P yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Meyer Sound USW-1P - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Meyer Sound USW-1P you will learn all the available features of the product, as well as information on its operation. The information that you get Meyer Sound USW-1P will certainly help you make a decision on the purchase.
If you already are a holder of Meyer Sound USW-1P, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Meyer Sound USW-1P.
However, one of the most important roles played by the user manual is to help in solving problems with Meyer Sound USW-1P. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Meyer Sound USW-1P along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
