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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Tannoy B475, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.
What is an instruction?
The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of Tannoy B475 one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.
Unfortunately, only a few customers devote their time to read an instruction of Tannoy B475. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.
What should a perfect user manual contain?
First and foremost, an user manual of Tannoy B475 should contain:
- informations concerning technical data of Tannoy B475
- name of the manufacturer and a year of construction of the Tannoy B475 item
- rules of operation, control and maintenance of the Tannoy B475 item
- safety signs and mark certificates which confirm compatibility with appropriate standards
Why don't we read the manuals?
Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Tannoy B475 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Tannoy B475, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Tannoy service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Tannoy B475.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Tannoy B475 item, and its use of respective accessory, as well as information concerning all the functions and facilities.
After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.
Table of contents for the manual
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Page 1
B475 USER MANUAL[...]
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Page 2
2[...]
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Page 3
3 CONTENTS 1. Introduction .......................................................................................................... 5 2. Unpacking ............................................................................................................ 5 3. Connectors/Cabling ....................................................................[...]
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Page 4
4[...]
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Page 5
5 1. Introduction Thank you for purchasing Tannoy B475. The Tannoy B475 is an 18” direct radiating bass loudspeaker system, designed for high definition sound reinforcement at low and ultra - low frequencies. It will extend the power bandwidth of Tannoy i/T range mid/high sound reinforcement systems to below 30Hz, making it ideal for effects in c[...]
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Page 6
6 CABLE RUN (m) C.S.A. OF EACH CONDUCTOR (mm) CABLE RESISTANCE Ω Ω % POWER LOSS INTO 8 Ω Ω LOAD % POWER LOSS INTO 4 Ω Ω LOAD 10 2.5 4.0 6.0 0.14 0.09 0.0 6 1.7 1.1 0.73 3.5 2.2 1.5 25 2.5 4.0 6.0 0.35 0.22 0.14 4.3 2.7 1.8 8.6 5.4 3.6 50 2.5 4.0 6.0 0.69 0.43 0.29 8.6 5.4 3.6 17.0 11.0 7.2 100 2.5 4.0 6.0 1.38 0.86 0.58 17.0 11.0 7.2 35[...]
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Page 7
7 6. Crossovers For optimal performance the B475 has been designed to operate with Tannoy Install or Transportable series, e.g. i12/T12, i15 and T300, where overall system control is achieved by utilising the TDX2 syst em controller. The TDX2 has been factory preset to provide the recommended cross - over points, delays and overall system balance. [...]
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Page 8
8 9. Positioning When a bass loudspeaker is used in an environment with boundary surfaces, its placement affects its frequency response. When such effects are properly understood, they can be used to great effect in producing the desired sound quality wi thout the aid of additional amplification. Consider Figure 9a in the diagram below, here we see[...]
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Page 9
9 10. Dimensions[...]
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Page 10
10 11. Technical Specifications Frequency r esponse (1) +/ - 3dB 28Hz - 240Hz Recommended Amplifier Power 400 - 800 Watt / 8 Ω Power Handling Average (2) Programme Peak (10ms) 300 Watt 600 Watt 1200 Watt Sensitivity (1) 2.83 volt @ 1m 98dB 101dB (half space) Maximum SPL (3) Average Peak @ 1m 123dB 129dB Impedance Nominal 8 Ω Minimum 7.8 Ω Dis[...]
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Page 11
11 12. B475 Service Parts & Accessories Part Number Description 7900 0599 Driver Kit Type 4505 7900 0603 Recone Kit Type 4505 8001 2190 EBS10 Eye Bolt Set M10 8000 0727 TDX2 Digital loudspeaker management s ystem 60 - 250V - UK 8000 0728 TDX2 Digital loudspeaker management system 60 - 250V - EUR 8000 0729 TDX2 Digital loudspeaker management sys[...]
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Page 12
12 Tannoy Limited , Professional Division, Coatbridge, Strathclyde, ML5 4TF, Scotland. Tel: +44 (0) 1236 420199 Fax +44 (0) 1236 428230 e - mail: prosales@tannoy.com Website: www.tannoy.com Tannoy / TGI North America Inc. , 335 Gage Avenue, Suite 1, Kitchener, Ontario, Canada N2M 5E1. Tel: (519) 745 - 1158 Fax: (519) 745 - 2364 e - mail: inquiries@[...]