Instruction/ maintenance manual of the product SR-PP4 TOA Electronics
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OPERA TING INSTRUCTIONS LINE ARRA Y SPEAKERS EXTENSION PLA TE (optional) PROTECTION P AD (optional) SR-S4L SR-S4S SR-EP4 SR-PP4 SR-S4L SR-S4S Thank you for purchasing TOA's Line Array Speakers and their associated products. Please carefully follow the instructions in this manual to ensure long, trouble-free use of your equipment.
2 T ABLE OF CONTENTS 1. SAFETY PRECAUTIONS ............................................................................................ 3 2. GENERAL DESCRIPTION ..........................................................................................
3 1. SAFETY PRECAUTIONS • Before installation or use, be sure to carefully read all the instructions in this section for correct and safe operation. • Be sure to follow all the precautionary instructions in this section, which contain important warnings and/or cautions regarding safety.
4 When Installing the Unit • Avoid placing the unit in a doorway or other high traffic area as people may trip on the equipment and cords, or be injured by falling objects.
5 2. GENERAL DESCRIPTION Featuring slim construction, the SR-S4 series are 2-way line array speakers containing 32 speaker elements. The sound source speaker elements are vertically arranged in close proximity to each other, and form a continuous linear sound source, achieving uniform sound pressure with less attenuation due to distance.
6 4. COVERAGE AREA The line array speaker radiates a sound only within a limited range. Since sound is reduced in areas that are outside the range, take care that the listening area is sufficiently covered when installing the speaker.
7 5.1. Line Array Speaker SR-S4L 5.2. Line Array Speaker SR-S4S 5. DIMENSIONAL DIAGRAM [Front] [Rear] [Side] Blank panel Input terminal panel (The optional MT-S0601 Matching Transformer can be installed inside.
8 6. SINGLE-AMPLIFIER DRIVE AND BI-AMPLIFIER DRIVE The SR-S4 series speakers are factory-preset to be driven by a single amplifier, however this setting can be changed to a bi-amplifier drive system by changing the speaker's internal wiring. (See p.
9 8. CHANGING TO HIGH IMPEDANCE The SR-S4 series speakers can be used for high-impedance applications with the installation of the optional MT-S0601 Matching Transformer. To install the MT-S0601 transformer, remove the blank panel located on the speaker's rear panel.
10 9. JOINING SPEAKERS Joining line array speakers configures a longer linear sound source, permitting richer low-frequency sound reproduction as well as transmission of higher sound output over a longer distance. To join speakers, use the optional SR-EP4 Extension Plate.
11 10. A TT ACHING THE PROTECTION P AD T O THE SPEAKER EDGE Remove the protective paper of the double-faced tape affixed to the SR-PP4 Protection Pad (optional) and attach the pad to the speaker edge as shown in the figure. When installing the speaker at head height, attach the optional SR-RP4 Protection Pad to the speaker edges.
12 1 1. CHANGING SINGLE-AMPLIFIER DRIVE TO BI-AMPLIFIER DRIVE SYSTEM The single-amplifier drive system can be changed to a bi-amplifier drive system by changing the speaker's internal wiring after removing the input terminal panel located at the back of the speaker.
13 12. INTERNAL WIRING DIAGRAM FOR THE BI-AMPLIFIER DRIVE SYSTEM The diagram below is an internal wiring after the speaker's drive system is changed to a bi-amplifier system.
14 13. DIGIT AL PROCESSOR FIL TERING 13.1. Single-Amplifier Drive (Factory-Setting) Although the speaker can be operated without a digital processor, it is recommended that the speaker be used in conjunction with a digital processor for better sound reproduction.
15 14. SPECIFICA TIONS 14.1. Line Array Speaker SR-S4L, SR-S4S Note: The design and specifications are subject to change without notice for improvement. • Accessories Bi-amplifier rating label ................................... 1 Bi-amplifier terminal label .
Printed in Japan 133-05-385-40 14.2. Extension Plate SR-EP4 (optional) The SR-EP4 is used to join multiple SR-S4L or SR-S4S speakers. One complete set consists of 2 brackets.
An important point after buying a device TOA Electronics SR-PP4 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought TOA Electronics SR-PP4 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 TOA Electronics SR-PP4 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, TOA Electronics SR-PP4 you will learn all the available features of the product, as well as information on its operation. The information that you get TOA Electronics SR-PP4 will certainly help you make a decision on the purchase.
If you already are a holder of TOA Electronics SR-PP4, 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 TOA Electronics SR-PP4.
However, one of the most important roles played by the user manual is to help in solving problems with TOA Electronics SR-PP4. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device TOA Electronics SR-PP4 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
