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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Viper 550.2, 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 Viper 550.2 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 Viper 550.2. 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 Viper 550.2 should contain:
- informations concerning technical data of Viper 550.2
- name of the manufacturer and a year of construction of the Viper 550.2 item
- rules of operation, control and maintenance of the Viper 550.2 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 Viper 550.2 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 Viper 550.2, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Viper 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 Viper 550.2.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Viper 550.2 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
models 550.2 650.2[...]
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Page 2
2 © 2002 Directed Electronics, Inc[...]
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Page 3
3 © 2002 Directed Electronics, Inc T ABLE OF CONTENTS CONGRA TULA TIONS Congratulations for choosing Viper Audio neodymium two-way component speakers from Directed Electronics. Directed Electronics has been the industr y leader in high-quality automo- tive security and audio equipment since 1990, and with the introduction of the Viper Audio line o[...]
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Page 4
4 © 2002 Directed Electronics, Inc LIMITED TWO-YEAR CONSUMER W ARRANTY Directed Electronics, Inc. (DEI) promises to the original purchaser , to replace this product should it prove to be defective in workmanship or material under normal use, for a period of two years from the date of purchase from the dealer as indicated by the date code marking o[...]
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Page 5
5 © 2002 Directed Electronics, Inc High-powered car audio systems may produce sound pressure levels that exceed the threshold at which hearing loss may result. They may also impair a driver’ s ability to hear traffic sounds or emergency vehi- cles. Use common sense and practice safe listening habits when listening to or adjusting your audio syst[...]
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Page 6
6 © 2002 Directed Electronics, Inc INST ALLA TION PRECAUTIONS The Viper 550.2/650.2 neodymium separates are designed for installation into factor y speaker locations, custom mounting enclosures or any flat mounting surface inside the vehicle with sufficient rear clearance. The following precautions and instructions cover the basic and most common [...]
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Page 7
7 © 2002 Directed Electronics, Inc WOOFER INST ALLA TION Review the Installation Precautions section of this guide before proceeding. 1. Place the cutout template against the mounting surface in the desired location for the woofer . 2. Draw the speaker hole and mounting screw locations on the panel with a marker . The 550.2 woofer requires a 4[...]
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Page 8
8 © 2002 Directed Electronics, Inc TWEETER INST ALLA TION Review the Installation Precautions section of this guide before proceeding. Flush Mounting into Removed Panels 1. Determine the tweeter mounting location, then route the wires from the crossover to the tweeter location. 2. Mark the center point of the tweeter location. 3. If using a hole s[...]
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Page 9
9 © 2002 Directed Electronics, Inc Flush Mounting into Mounted Panels 1. Determine the tweeter mounting location, then route the wires from the crossover to the tweeter loca- tion. 2. Mark the center point of the tweeter location. 3. If using a hole saw , first drill a pilot hole, then cut out the hole using a standard 2-1/8" hole saw . 4. If[...]
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Page 10
10 © 2002 Directed Electronics, Inc T weeter Surface Mounting 1. Deter mine the tweeter mounting location, then route the wires from the crossover to the tweeter loca- tion. 2. Place the sur face mount housing against the panel and mark the two holes at the rear of the housing. 3. Drill the smaller center hole using a 1/8" drill bit. This is [...]
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Page 11
11 © 2002 Directed Electronics, Inc CROSSOVER INST ALLA TION Review the Installation Precautions section of this guide before proceeding. Crossover Adjustment and Wiring Connections This Viper crossover has the ability to work in car audio systems from basic single amplifier systems to the most sophisticated multiple amplifier systems with signal [...]
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Page 12
12 © 2002 Directed Electronics, Inc FIGURE 5—SINGLE AMPLIFIER Connection/Adjustment Single Amplifier 1. Connect the amplifier channel output to the crossover input connector as shown, carefully obser ving amplifier output polarity . 2. Connect the tweeter and woofer wires to the output connector as shown, carefully obser ving speaker polarity . [...]
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Page 13
13 © 2002 Directed Electronics, Inc FIGURE 6—DUAL AMPLIFIER Connection/Adjustment Dual Amplifier 1. Connect the amplifier tweeter and woofer channel outputs to the crossover input connector as shown, carefully obser ving amplifier output polarity . 2. Connect the tweeter and woofer wires to the output connector as shown, carefully obser ving spe[...]
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Page 14
14 © 2002 Directed Electronics, Inc SPECIFICA TIONS Viper model 550.2 650.2 T weeter Fs (Hz) 71.1 51.7 1534.54 V as (cu.ft.) 0.19 0.63 n/a V as (L) 5.5 17.9 n/a Qms 7.19 5.91 1.16 Qes 0.50 0.45 2.76 Qts 0.47 0.42 0.82 Re (ohms) 3.8 3.8 3.36 Z (ohms) 4 4 4 Le (mh) 0.49 0.483 0.01 SPL (dB 1w@1m) 87.86 89.29 91 XMAX (inches) 0.2 0.2 0.02 XMAX (mm) 4.[...]
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Page 15
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Page 16
16 © 2002 Directed Electronics, Inc The company behind this system is Directed Electronics, Inc. Since its inception, Directed has had one purpose, to provide customers with the finest vehicle security , car stereo products, rear seat entertainment, and accessories available. The recipient of more than 20 patents in the field of advanced electroni[...]