Go to page of
A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of JBL MkII W15GTi, 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 MkII W15GTi 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 MkII W15GTi. 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 MkII W15GTi should contain:
- informations concerning technical data of JBL MkII W15GTi
- name of the manufacturer and a year of construction of the JBL MkII W15GTi item
- rules of operation, control and maintenance of the JBL MkII W15GTi 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 MkII W15GTi 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 MkII W15GTi, 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 MkII W15GTi.
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 MkII W15GTi 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
-
Page 1
THANK YOU for choosing a JBL ® GTi Series subwoofer. GTi subwoofers are designed to provide maximum sound output in a va ri et y of enclosure types while maintaining the superb sound quality associated with JBL. To ensure the best subwoofer performance, we strongly recommend that installation be entrusted to a qualified professional. Although th [...]
-
Page 2
2 INST ALLA TION W ARNINGS AND TIPS WARNING Playing loud music in an automobile can hinder your ability to hear traffic, as well as permanently damage your hearing. We recommend listening at low levels while driving. JBL accepts no liability for hearing loss, bodily injury or property damage resulting from use or misuse of this product. YOUR CAR A[...]
-
Page 3
GTi Series subwoofers are optimized to perform best in small sealed, vented and bandpass enclosures. While infinite- baffle mounting of GTi Series subs is possible, power handling will be compromised since there will be no enclosed volume of air to help the speaker’s suspension control the motion of the woofer’s cone. For this reason, we do n[...]
-
Page 4
4 ENCLOSURE CONSTRUCTION Please observe the following suggestions when building an enclosure for GTi Series subwoofers. 1. Choose an enclosure design from the Enclosure Design Sheet included with your subwoofer. 2. Use at least 3/4" (19mm) MDF (medium density fiberboard) or marine birch plywood to build the enclosure. Enclosures for 12" [...]
-
Page 5
At extremely high power, each coil will enter the other coil’s magnetic gap. This will cause magnetic braking, which will slow the cone’s motion and prevent damage due to overexcursion. For a GTi Series woofer, X max is determined by the amount of voice-coil overhang between the first and second top plates. See Figure 3. Thermal power handling[...]
-
Page 6
6 CONFIGURING MULTIPLE WOOFERS FOR CONNECTION TO A SINGLE AMPLIFIER Figure 7. Connect two woofers in parallel (with coils in parallel) for a 1.5-ohm load Figure 8. Connect three woofers in parallel (with coils in series) for a 4-ohm load Figure 9. Connect four woofers in parallel (with coils in series) for a 3-ohm load TERMINAL JUMPERS INT ACT + TE[...]
-
Page 7
W10GTi MkII W12GTi MkII W15GTi MkII 10" Automotive subwoofer 12" Automotive subwoofer 15" Automotive subwoofer Power handling (peak) 3000W 4000W 5000W Power handling (RMS) 600W 700W 800W Frequency response (in-car) 20Hz – 1kHz, ±3dB 18Hz – 1kHz, ±3dB 16Hz – 1kHz, ±3dB Impedance 3 or 12 ohms 3 or 12 ohms 3 or 12 ohms Sensitiv[...]
-
Page 8
Declaration of Conformity We, Harman Consumer Group International 2, route de Tours 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 61000-6-3:2001 EN 61000-6-1:2001 Klaus Lebherz Harman Consumer Group International Château du Loir, Franc[...]