Instruction/ maintenance manual of the product HD900/5 JL Audio
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OWNER’ S MANU AL 5- Channel Class- D S ystem Ampli fier Th ank y ou for purcha sing a J L Audio amplif ier for your automot ive soun d sys tem . Y our amplif ier ha s bee n d esig ned and m anufac tured to ex ac ting stan dard s in order to en sure years of mu sic al e njoyme nt in your vehicle .
2 | JL Audio - HD900/5 Owner ’ s Manual PROTE CT YOUR HEA RING ! W e value yo u as a lo ng- term cu st omer . Fo r t hat re ason, we u rge you to pr act ice rest ra int i n t he ope ration of t hi s produc t s o as not to da mage your hearing and that of o thers in your ve hicle.
3 Cooling Ef ficienc y Considerations: Y our JL Audio amplifier emp loys an adv anc ed t y pe of heat man agement , ca l led RealSin k ™ . Th is feature takes advantage of conv ec tion and radiation effects to rem ove heat from t he a mpli fie r ci rcu itr y .
4 | JL Audio - HD900/5 Owner ’ s Manual PRODUCT DE SCRIPTION The JL Au dio HD90 0/ 5 is a very pow er ful and com pact f iv e-cha nnel amplif ier util izing patent ed Si ngle Cycle Cont rol ™ C las s D technolo g y for a ll channels.
5 TYPICAL INST ALLA TION SEQUENCE The follo w ing rep resen ts the sequen ce for a ty pi ca l amplif ier insta llation, using an a fte rma rket sou rce u nit or OEM Inter fac e processor (like the CleanSweep ® CL 441 dsp ). Additio nal steps and dif fe ren t pr ocedures ma y be required in some ap plications.
6 | JL Audio - HD900/5 Owner ’ s Manual POWER AND TURN ON CONNECTIONS Befor e i nstall ing the amplif i er , disconnect t he nega tive (ground ) wire from the vehicl e’ s battery . This wi ll pr even t acci dental damage to t he system, t he veh icle a nd y our b ody duri ng i nst a llat ion.
7 For opti ma l grou nding , we recom mend t he use of a JL Au dio ECS m aster g round lug (XB-MG LU) . Alter natively, a sheet met al scr ew o r bol t can be used with a star wash er .
8 | JL Audio - HD900/5 Owner ’ s Manual AMPLIFIER MOUNTING OPTIONS The HD90 0/ 5 has two moun ti ng o ptions to ease in inst allation. Standard Mounting Th e st and ard met hod of mount ing requ ires remo va l of the fo u r corner caps wit h t h e 4 mm hex wre nch i ncluded wit h your a mpl if ier.
9 AMPLIF IER INPUTS The HD900/ 5 has three se parate in put se ctions, one for th e “Front” lef t a nd r ight cha nnel s, another for the “R ear” l eft and righ t ch annels and o ne fo r the Su bw oof er Channel.
10 | JL Audio - HD900/5 Owner ’ s Manual The output of the a m plif ier decreases for a given input vo ltage when the “Input Ra nge” sw itch i s pla ced in t he “Hig h” position. The outpu t increas es with t he sw it ch in t he “Low” pos ition.
11 wh ile the “Su b” ch a nn el fi l ter is a lo w- pass fi l ter ( attenuates high f req uencies ). F or each f ilter , the user can select from a shallow ( 12dB/ oc tav e ) f ilter slop e or a more a gg ressi ve (24d B/ o ct ave ) slope.
12 | JL Audio - HD900/5 Owner ’ s Manual BI AMPLIF IED SYSTE MS Bi-a mpli fi ed s yste ms a re de fi ned as s yste ms in wh ich se par ate a mpl if ier c han nels dr ive low- frequen cy (LF) and high-freque ncy (HF) spea kers and are separately filtered to sen d app ropriate f requenc y r ange s to each spea ker sy stem.
13 REMOTE LEVE L CONTROL OPTIONAL Wit h t he ad dit ion of the option al Remote Leve l Cont rol (H D-R LC), you ca n c ontrol the level of the Subw oofer Channel of the HD900/5 from the front of the vehi cle.
14 | JL Audio - HD900/5 Owner ’ s Manual BRIDGING CONS IDERA TIONS Bridging is the practice of co mbining the outpu t of two amplif ier channels to drive a single load. When b ridged, each channel pr oduces signals of equal magn i tude, but o pposi te polarity .
15 “ST A TUS” LED / PROTECTION CIRCUITRY There is a single multi-col or LED on the cont rol pa nel of t he a mpli fie r to ind icate the a mpli fier ’ s o perat ing st atus . T his LE D’ s b ehav ior is as fo llows: 1) Flashi ng Green : a mpli f ier i s power ing up, aud io out put is muted.
16 | JL Audio - HD900/5 Owner ’ s Manual SERVICING Y OUR JL A UDIO AMPLIFIER If your amplifier fai ls or malf unctions, please return it to yo u r authorized JL Audio dea l er so that it ma y be sent in to JL Audio for ser vice. There are no user serv i ceable par ts or fu ses inside the am plif i er .
17 APPEN DIX A: HD900/ 5 Specifications Amplifier T op ology: Clas s D , switch ing type with paten ted Sing le- C ycle Con trol™ t echnology. Pow er Supply: Pu lse widt h modulat ion-regula ted swi.
18 | JL Audio - HD900/5 Owner ’ s Manual APP ENDIX B: Precise F requency Sele ction Chart “FIL TER FREQ” Detent Panel Actual Number Marking Freq . (H z) Full counter-clockwise: 53 01 ........... “50” ............ 53 02 ......................
19 The Nine-Step Proc edure (follow t h is pro cedu re for e ach pai r of cha nnel s ) 1) Di scon nec t t he Spe ak er C onnec tor Plu gs. 2) T u rn off al l processing on the so urce unit (bass/ trebl e, lo udness, EQ, etc.
20 | JL Audio - HD900/5 Owner ’ s Manual “How do I pro perly set the in put s ensitiv ity on my amplifier” Plea se r efer t o Appen d ix C (p ages 1 8, 19 ) to set the inpu t sensitivit y for m ax imu m, l ow -d istor t ion out put.
21 “My amplifier sh uts off once in a wh ile, usuall y at higher v olumes” Che ck y our vo ltage sour ce and grounding point. The po wer supp ly of the HD900/5 w ill operate wit h charg ing system vol tages down to 9 V . Shutd own pr oble ms at hig h er vo lume lev els can occu r whe n the chargi ng system vol tage drops bel ow 9V .
22 | JL Audio - HD900/5 Owner ’ s Manual INSTALLA TI ON NOTES: Use this diagram to document your amplifier ’ s switch and control positions..
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LIMIT ED WA RR A NTY A MPL IFIERS US A JL A UDI O warran ts this pr oduct to be free of de fe cts in mat erials and wo rk m anship for a peri od of t wo (2 ) yea rs f rom t he or ig ina l d ate of purc hase . This wa rranty is not tr ansfe rable a n d app l ies only to the original purchaser from an au thoriz ed JL A UDIO dealer .
An important point after buying a device JL Audio HD900/5 (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 HD900/5 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 HD900/5 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, JL Audio HD900/5 you will learn all the available features of the product, as well as information on its operation. The information that you get JL Audio HD900/5 will certainly help you make a decision on the purchase.
If you already are a holder of JL Audio HD900/5, 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 HD900/5.
However, one of the most important roles played by the user manual is to help in solving problems with JL Audio HD900/5. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device JL Audio HD900/5 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
