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The rules should oblige the seller to give the purchaser an operating instrucion of JL Audio A6450, 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.
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First and foremost, an user manual of JL Audio A6450 should contain:
- informations concerning technical data of JL Audio A6450
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- safety signs and mark certificates which confirm compatibility with appropriate standards
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Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of JL Audio A6450 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 JL Audio A6450, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the JL Audio 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 JL Audio A6450.
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Table of contents for the manual
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Page 1
Th ank you for p urcha sing a J L Audio amp lifi er for your automotive sound system . Y our ampl ifi er ha s be en de sig ned an d manufac ture d to ex act ing stan dard s in orde r to en sure year s of mus ical e njoy ment in you r vehicl e. For ma xi mum per fo rm ance an d ex ten ded wa rrant y cove rage, we h ighly re commen d that you h ave y[...]
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Page 2
PLANNING Y OUR INST ALLA TION I t is im p o rtan t th at yo u tak e th e tim e t o r ead t hi s manu a l and t hat you pl an out you r in st al l ation c a ref ul ly. The fol low ing a re s ome con si deratio ns that you m ust take in to acc oun t whe n planning your installatio n. Coo ling E f fi cie nc y Cons ide rat ion s: Th e outer she ll of y[...]
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Page 3
Th e A64 50’s “ +1 2 V D C ” a nd “ Ground ” co nnecti on s are des igne d to acc ep t 4 A W G power w i re. 4 A WG is a m in imu m power w i re si ze for th is a mpli f ier. If you a re i nst a l li ng t he A6 450 w it h ot her a mpli f iers a nd w is h to us e a sin gle m ai n power w ire , us e 2 A W G or 1/0 A WG ma in p ower wi re ( [...]
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Page 4
INPUT SENSITIVIT Y CONTROLS Once t he ap propri ate “ Inpu t V olt age ” range ha s bee n selec te d, t he c ontrol s lab eled “ Inp ut Sens. ” loc ated i n eac h “ Channel Con trols ” se ct ion ca n b e use d to matc h th e sou rce u nit ’ s output volt age t o the i nput st age of e ach p ai r of a mpli f ier ch an nel s for ma x im[...]
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SPEAKER OUTPUTS Th e A64 50’s spea ke r output s a re des ign ed to acc ept 16 A WG - 8 A W G w i re. Ea ch pa ir of t he A6 4 50’s chan nel s ar e desi gne d to del iver p ower i nto spe a ker loa ds eq ua l to or g reat er t ha n 2 ohm s when u sin g a “stere o” conf i g ur ation a nd spe ak er load s equ a l to or g reate r th an 4 oh ms[...]
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SYSTEM C ONFIGU RA TI ONS Th e A64 50 is a f lex ible a mpli f ie r , we ll- su ited for a mult it ude of sy stem c onf ig u rat ions . In thi s se ctio n, the mo st lik e ly co nfigur ati on s are explained in detai l. Once you h ave selec ted you r de sired con f ig ur ation , you ca n us e th e ampl if i er pa nel dr aw ing on p ages 18 & 19[...]
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JL AUDIO A6450 13 D) Subwoo fer L evel C ontr ol On ly : Req ui red: a sou rce u nit or pro ce ssor w it h one pa ir of s tere o output s an d ded icat ed subwoof er outputs. Inp ut Connecti ons : the st er eo p air o f so u rce u nit out put s eac h spl it wit h a “ Y -Adapt or” a llow ing t he left sig na l to be sent to the “ CH 1 (L ef t)[...]
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Page 8
JL AUDIO A6450 15 APPEN DIX C: A6450 Specifications General Speci fications: Recommended Fuse Value: 60A Recommended F use T ype: AF S, A GU or MaxiF use ™ Input Sections: No. of Inputs: Th ree S te reo Pairs Input T ype: Dif ferential-balanced with RCA jack inputs Input Range: Switcha ble f rom 20 0mV - 2V RMS to 80 0mV - 8V RM S Amplifier Secti[...]
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JL AUDIO A6450 17 16 JL AUDIO A6450 “My a mpl if ier s hut s of f onc e in a wh ile , usu all y at hig he r volu mes ” Che ck your volt age s ourc e and g rou nd ing p oint . The p ower supply of t he A64 50 w i l l oper ate w ith c ha rg ing s ys tem volt ages do w n t o 1 0 V . Sh utdo w n p rob lem s a t highe r v olume leve ls ca n oc cu r [...]
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JL AUDIO A6450 19 18 JL AUDIO A6450 INSTALLA TIO N NOTES: Use t hi s di ag ra m to do cu ment you r a mpli f ier’s swit ch a nd cont rol po sit ions.[...]
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Page 11
LIMITE D W ARR ANTY AMPLI FIE RS USA JL AUDIO wa rr a nts t hi s produc t to be f ree of d efec ts i n mat eri a ls a nd work ma ns hip for a pe rio d of ninety ( 90 ) days f ro m the o riginal da te of purch ase. The warranty t erm is e xten ded to two (2 ) y ea rs if installatio n is perform ed or appr oved by an au t ho r ized JL A U D[...]