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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Rockford Fosgate P2D2-8, 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 Rockford Fosgate P2D2-8 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 Rockford Fosgate P2D2-8. 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 Rockford Fosgate P2D2-8 should contain:
- informations concerning technical data of Rockford Fosgate P2D2-8
- name of the manufacturer and a year of construction of the Rockford Fosgate P2D2-8 item
- rules of operation, control and maintenance of the Rockford Fosgate P2D2-8 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 Rockford Fosgate P2D2-8 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 Rockford Fosgate P2D2-8, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Rockford Fosgate 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 Rockford Fosgate P2D2-8.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Rockford Fosgate P2D2-8 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
Printed in China Installation & Operation P 2 - D V C - D U AL V O I CE C O I L S U B WO O F ER S Serial Number: Date of Purchase: Ro ck fo r d C or por at io n o ff e rs a li mi te d w ar ra nt y o n R oc kf or d F o sg at e p r odu ct s o n t he fo ll ow in g t er ms : Le n gt h o f W a r r an ty S p e ak e r s – 1 Y e ar . A n y Fa c t o r[...]
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Page 2
2 This manual outlines two specific types of enclosures that pr ovide distinctly different performance. This section is to help you decide which type is best for your application. SEALED ENCLOSURES Sealed enclosures ar e the simplest to build. The most important part of building a sealed enclosure is to mak e sure that the enclosur e is airtight. U[...]
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Page 3
3 NO TE: Vb is the gr oss v olume, which is the T O T AL internal volume, before any speak er and/or port displacement. All external dimensions w ere based on the use of 3/4" (1.90cm) materials. NO TE: When using enclosures other than recommended, call T echnical Support f or corr ect a pplication. NO TE: Vb is the gr oss v olume, which is the[...]
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Page 4
4 S p e ci fi ca ti o n s s ub je c t t o c ha ng e w i t ho ut n ot ic e " 5 1 " 2 1 " 0 1 " 8 C V D - 2 P H C N U P P 2D 2- 8 / P 2D 4- 8 P 2D 2- 1 0 / P2 D4 - 10 P 2D 2- 1 2 / P2 D4 - 12 P 2D 2- 1 5 / P2 D4 - 15 A - T r im Ri ng Dia met er - inc h 8.96 (22.75) ) m c ( B - T rim R ing Hei gth -i nch 0.85 (2.16) ) m c ( C - Mou[...]
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Page 5
5 S p e ci fi ca ti o n s s ub je c t t o c ha ng e w i t ho ut n ot ic e " 5 1 " 2 1 " 0 1 " 8 C V D - 2 P H C N U P P 2D 2- 8 / P 2D 4- 8 P2 D2 - 10 / P 2D 4 -1 0 P 2D 2- 1 2 / P2 D4 - 12 P 2D 2- 1 5 / P2 D4 -1 5 No min al Impe dan ce (ohm s) 2 x 2 / 2 x 4 Fr eque nc y Res pon se (Hz ) 39.6-250 / 43-250 V oic e Co il Di am et [...]
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Page 6
Français MISE EN GARDE : a vant d'entamer l'installation, déconnectez la broche négativ e (-) de la batterie pour éviter tout risque de blessures, d’incendie ou de dommages à l'appar eil. Enceintes recommandées Ce manuel décrit deux types particuliers d'enceintes aux performances tout à fait distinctes. Cette section v[...]
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Page 7
• Respuesta de bajo pr ofundo con menos exigencia de potencia • Fabulosas para salida alta con potencia limitada Construcción de una caja Para un buen funcionamiento las paredes de la caja deben ser rigidas y no se deben doblar cuando sean sometidas a la gran presión que ejer ce el funcionamiento del alta voz. Recomendamos usar madera comprim[...]
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Page 8
8 F EA TURES • High modulus Kevlar reinforced cone and dust cap. • • Dual tear and fatigue resistant poly-cotton spiders. • Tall profile Santoprene surround. • H ig h t e m p v o i ce co i l wi th s p un - l ac ed No m e x ™ ™ ™ i ns ul a t in g r e -i nf or c me nt c o ll ar . • O pt im i z ed m o to r m a gn e ti cs w i t h e xt[...]