Instruction/ maintenance manual of the product A1800 JL Audio
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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.
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.
POWER CONNECTIONS Before i ns ta l li ng t he a mpli f ier, dis con nec t the negat ive ( gr ound) w i re from t he ve hic le’ s b att er y . Th is w i l l prevent a ccid enta l d am age to t he s yst em, t he veh icle a nd you r body du r in g in st al l ation .
AMPLIFIER C ONTROLS 1) “ I n p u t S e n s . ”: Once the a pp rop r iate “ Input Vo l t a g e ” ra nge ha s be en sele ct ed, t he c ontr ol labeled “ In put Sens.
The p reamp o utput signal is n ot a ffected by t he “ Bass Boost ” proce ssi ng se lec ted for t he a mpli f ier or by a ny cros sover f i lte r sele cte d (if t he input signal is f ul l- range, the preamp outpu t will be full - rang e ) .
JL AUDIO A1800 11 10 JL AUDIO A1800 SERVICING YOUR JL AUDIO AMPLIFIER If yo ur am p lifier fails o r malfuncti ons , p lease re turn it to yo ur a u tho rized JL A udio deale r s o that it may be sen t in to JL A udio for ser vice. Th ere ar e no use r ser v ice able pa r ts or f u ses i ns ide t he ampl i f ier.
APPEN DIX B: Pre cis e Freq uen cy S ele c tio n Char t “FIL TER FREQ” AMP FIL TER Detent Panel Actual Number Marking Fr eq. Full c ounter-clockwise: 42 01 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 02 . . . . . . . . . . . . . . .
JL AUDIO A1800 15 “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 A1 80 0 w i ll op erat e wit h c ha rgi ng s yst em volta ges do w n t o 1 0 V .
JL AUDIO A1800 17 16 JL AUDIO A1800 INST ALLA TION NO TES: Use this diagram to document your amplifier’ s switch and control positions. Bass Boost Controls Input Voltage Low | H igh CH 1 (Left) Input Sens.
JL AUDIO A1800 19 18 JL AUDIO A1800 INST ALLA TION NO TES: INST ALLA TION NO TES:.
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.
An important point after buying a device JL Audio A1800 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought JL Audio A1800 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data JL Audio A1800 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, JL Audio A1800 you will learn all the available features of the product, as well as information on its operation. The information that you get JL Audio A1800 will certainly help you make a decision on the purchase.
If you already are a holder of JL Audio A1800, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime JL Audio A1800.
However, one of the most important roles played by the user manual is to help in solving problems with JL Audio A1800. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device JL Audio A1800 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
