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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of JBL MA6004, 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 JBL MA6004 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 JBL MA6004. 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 JBL MA6004 should contain:
- informations concerning technical data of JBL MA6004
- name of the manufacturer and a year of construction of the JBL MA6004 item
- rules of operation, control and maintenance of the JBL MA6004 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 JBL MA6004 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 JBL MA6004, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the JBL 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 JBL MA6004.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the JBL MA6004 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
MA6004 MA6002 MARINE A UDIO POWER AMPLIFIER OWNER’S MANU AL www .jbl.com The Official Brand of Live Music .[...]
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Page 2
INST ALLA TION 2 THANK Y OU for purchasing a JBL marine amplifier . In order that we may better serve you should you require warranty service for your new amplifier , please retain your original purchase receipt and register your new JBL amplifier online at www .jbl.com. W ARNING Playing loud music in a boat can hinder your ability to hear other bo[...]
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Page 3
3 INST ALLA TION POWER CONNECTIONS The amplifier requires a reliable connection to the boat’ s electrical system in order to perform optimally . See Figures 1 and 2 for terminal con- nection locations. Please adhere to the following instructions carefully: Ground Connection Connect the amplifier’ s Ground (GND) terminal to the battery’ s nega[...]
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Page 4
4 APPLICA TIONS – MA6004 The MA6004 can be set up for stereo 4-channel, 3-channel or bridged 2-channel operation, as shown in Figures 4 through 6 . NOTE: For simplicity , Figures 4 through 6 do not show power , remote and input connections. NOTE: Minimum speaker impedance for stereo operation is 2 ohms. Minimum speaker impedance for bridged opera[...]
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Page 5
5 APPLICA TIONS – MA6002 Right Left Right Left Figure 7. MA6002 used in 2-channel (stereo) operation to drive a set of full-range speakers. Figure 8. MA6002 used in bridge mode to drive a subwoofer .[...]
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Page 6
6 CONTROLS AND SETUP SETTING THE CROSSOVER(S) Determine your system plans and set the crossover mode switch accordingly . If your system design does not include a subwoofer with the MA6004, set the crossover mode to FLA T ; if you are using speakers that are 5 inches in diameter or larger , skip to “Setting Input Sensitivity. ” Initially set th[...]
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Page 7
7 MA6004 • 60W RMS x 4 channels at 4 ohms and ≤ 1% THD + N • Signal-to-noise ratio: 80dBA (reference 1W into 4 ohms) • 80W RMS x 4 channels at 2 ohms, 14.4V supply and ≤ 1% THD + N • 160W RMS x 2 channels at 4 ohms, 14.4V supply and ≤ 1% THD + N • Dynamic power: 145W at 2 ohms • Effective damping factor: 6.395 at 4 ohms • Freque[...]
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Page 8
Declaration of Conformity W e, Harman Consumer Group International 2, route de T ours 72500 Château du Loir France declare in own responsibility that the products described in this owner’s manual are in compliance with technical standards: EN 55013:2001 + A1:2003 EN 55020:2002 + A1:2003 Klaus Lebherz Harman Consumer Group International Château [...]