Instruction/ maintenance manual of the product J2320.4 JL Audio
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Th ank you for p urcha sing a J L Au dio a mplif ier for your autom otive s ound syst em . Y our amplif ie r h as be en d es igne d an d m anufac ture d to ex ac ting stan dard s i n orde r t o en su re yea rs o f mu sic al e njoy ment in your vehicl e.
2 JL Audio 3 PLANNING Y OUR INST AL L A TION I t is importan t tha t y ou take the tim e t o r ead t hi s ma nua l an d t hat you pl an out you r in st al l ation ca ref u l ly . T he fol low in g a re s ome cons idera tion s t hat you mu st t a ke into acc ount when pla n ni ng you r ins ta l lat ion.
4 JL Audio 5 POWER CONNECTIONS Bef ore install ing the am plifie r , disc onn ect the ne ga tiv e (gro u n d ) wir e fr om the v ehicl e’ s ba t te r y . This will p rev en t acc id en ta l damag e t o the syst em , t he veh icle a nd you r b ody dur i ng i nst a l lat ion.
6 JL Audio 7 Mak e sur e yo u obse rve corr ect polari ty in makin g th e “H igh L eve l In pu t” conn e cti ons . Fa ilur e to do so will reduc e bass an d aff ect stereo imaging.
8 JL Audio 9 “BASS BOOST” CONTROLS Each channel pair of the J 2- 320.4 inclu des a si ngle ba nd , bo ost-on ly bas s e qua l iz er c ontrol le d by a rot ar y k nob m ark ed “ Bas s Bo ost ” . Th is cont rol h as a b oost ra nge of 0 d B (fu l l- counte rclockwise ) to + 12dB ( f ul l-clockwise ) and is c en tered at 45 Hz.
10 JL Audi o 11 AMPLIFIER ST A TUS INDICA TOR LIGHTS & PROTECTION CIRCUITRY There are two status ind ica tor lig h ts on the cont rol p ane l of the a mpli f ier. HP | Off | LP Filter Mode High-Pas s L ow-P ass Filter Fr equency (Hz) Filter Fr equency (Hz) Input Sens.
12 J L Au dio 13 APPEN DIX B : J2-320 .4 S pe ci f ica ti on s General Specificat ions: Recommended F use V alue: 60 A Recommended F use T ype: AFS, AGU or MaxiF use™ a t battery, 2 x 3 0A A TC fuses on amplifier cha ssis Input Sect ions: No.
14 JL Audi o 15 “My amp lif ier tu rns on, but the re is n o ou tpu t ” Che ck the inpu t signa l using an A C voltmeter to measure the vol tage from the so urce unit while an appro priate test to ne is pla yed through the source unit ( disconnect the input cables f rom t he ampl i fi er pr ior to t hi s te st).
16 JL Audi o 17 INSTALLA TI ON NOTES: Use t h is di ag ra m t o doc u ment you r a mpl if i er’ s sw itc h a nd c ontrol po sition s. HP | Off | LP Filter Mode High-Pas sL ow-P ass Filter Fr equency (Hz) Filter Fr equency (Hz) Input Sens. Input Sens.
18 JL Audi o 19 INST ALLA TION NOTES: INST ALLA TION NOTES:.
LIMIT ED WA RR ANTY AMP LIFIERS U SA JL Audio warra nts this prod uct to be free of def ec ts in materials and wor k manship fo r a period of o ne ( 1 ) year from the original d at e of purchase. This wa rranty is not transferrable and ap plies o nly to the origina l p urchaser from an au thorized JL Audio dealer .
An important point after buying a device JL Audio J2320.4 (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 J2320.4 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 J2320.4 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, JL Audio J2320.4 you will learn all the available features of the product, as well as information on its operation. The information that you get JL Audio J2320.4 will certainly help you make a decision on the purchase.
If you already are a holder of JL Audio J2320.4, 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 J2320.4.
However, one of the most important roles played by the user manual is to help in solving problems with JL Audio J2320.4. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device JL Audio J2320.4 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
