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Manual JL Audio J2250.1

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  • JL Audio J2250.1 - page 1

    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. For m ax imum per fo rm ance , we hig hly rec omme nd th at you h ave your ne w amp lif ier ins ...

  • JL Audio J2250.1 - page 2

    2 JL Audio PROTE CT Y OUR HE ARI NG! W e value yo u as a lo ng -term customer . For t hat re as on, we u rge you to prac tic e re st ra i nt in t he op erat ion o f t hi s pro duct so as not to da ma ge your hearing and that of o thers in your ve hicle. St udie s h ave show n t h at cont i nuous e xp osu re t o high sound pr essure levels can lead ...

  • JL Audio J2250.1 - page 3

    3 PLANNING Y OUR INST ALLA 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. Cooling Eff iciency Consider ations: The ou ter she ll of y ...

  • JL Audio J2250.1 - page 4

    4 JL Audio TYPICAL INST ALLA TION SE QUENCE The follo w ing repr esents the sequence for a t y pica l ampl i f ier i ns ta l lat ion, usi ng a n a ft erm ar ket sou rce u n it or OEM Inter fa ce prod uct . Additio na l steps and dif f eren t proced u res ma y be req u ired in some app l icatio ns. If you h ave a ny qu est ions , ple as e cont ac t ...

  • JL Audio J2250.1 - page 5

    5 POWER CONNECTIONS Befor e i nstal ling the a mp l if ier , disconnect the nega tive (ground ) wire from the vehicl e’ s battery . This wi ll prev ent accidental damage to the system, t he veh icle a nd you r p ers on du ri ng ins ta l lat ion. Made in China Speaker Output (Mono) Gr ound FUSE 30A Remot e + 12VDC Th e J2-250.1 ’s “ +1 2 V D C ...

  • JL Audio J2250.1 - page 6

    6 JL Audio “REMOTE” TURNON The J 2- 250.1 is tur ned on and o ff usi ng a c onventiona l + 12V remot e t ur n- on l ead, ty pical ly co ntrolled by the source unit’ s remo te turn-on ou tput. Made in China Speaker Output (Mono) Gr ound FUSE 30A Remot e + 12VDC T he ampl if i er w i l l t ur n on when + 12V i s pres ent at its “ Remo te ? ...

  • JL Audio J2250.1 - page 7

    7 IMPOR T ANT ! Mak e sur e yo u obse rve corr ect polari ty in makin g th e “H igh-Level I np ut ” co nnect ions. Fa ilur e to do so will res ult in a comp let e loss of signal (no bass). Th e con nec t ions for t he “H ig h-L eve l I nputs” p lu g w ire s a re a s fol low s f rom le f t to ri ght on t he p lug: W hite : L ef t Positi ve ( ...

  • JL Audio J2250.1 - page 8

    8 JL Audio “LP FIL TER ”  CROSSO VER CONTROL The J 2- 250.1 emp loys a 12dB/ octave lo w-pass (LP) ac t ive f i lter for it s i nter na l c ha nne l. T h is feature is designed to attenuate freque ncies abo ve its fi lt er frequ ency , so that the system ’ s sub woof ers do no t repro duce any aud ible m id ra nge content. Th e low-pas ...

  • JL Audio J2250.1 - page 9

    9 “BASS BOOST” CONTROL Th e J2-250.1 i nclude s a sin gle ba nd, bo ost- only bass equali zer co ntrolled b y a ro tar y knob ma rked “Ba ss Boo st ” . This control has a boost range of 0d B ( f ull-counter clockw ise ) to + 9dB (fu l l-clo ck w ise) a nd i s ce ntered at 4 5 H z. LP Filter Fr equency (Hz) Input Sens. Bass Boost Po we r Pr ...

  • JL Audio J2250.1 - page 10

    10 JL Audi o SPEAKER OUTPUT Speaker connection to the J 2- 250.1 is stra ightforward and takes place at the far right of t he pow er / spea ker conn ection pa nel. T wo p osit ive (“ + ”) con nec t ions a nd t wo neg ati ve (“ – ”) c onnec t ions are ava i lable v ia a con nec tor l abe led “ Speaker Ou tput (Mono )” . Th e dua l con ...

  • JL Audio J2250.1 - page 11

    11 ST A TUS INDICA TOR LIGHTS / PROTECTION CIRCUITRY There are two status ind ica tor lig h ts on the a mpli f ier’s cont rol pa nel . T hes e a re as follow s: 1) “ Power ” (Gr e e n) : L oc ated at t he fa r le ft of t he amplif ier’ s control panel, this LED l ights to indicate that the amplif ier is turned on and operati ng norma l ly . ...

  • JL Audio J2250.1 - page 12

    12 J L Au dio APPEN DIX A : Input Sensitivity L ev el Setting Follo wing t he di rections below wil l al lo w the in st al ler to adjus t t he i nput sens itiv it y of e ach amplif ier chan ne l pair simply and easi ly in just a few mi n utes using eq uipme nt which is commo nly ava i lable in i nst a ll ation bay s. Necessary Equipment • D igita ...

  • JL Audio J2250.1 - page 13

    13 APPEN DIX B : J2- 250. 1 Spec ificati ons General Specificat ions: Recommended F use V alue: 3 0 A Recommended F use T ype: ANL at battery, 1 x 30 A A TC fuses on amplifier chass is. Input Section: Low- Leve l Inpu t: Sing le- en ded wi th RC A jack s Low-Level Input Range: 200mV - 4V RMS High-Level Input: Single - ende d with m old ed conne c t ...

  • JL Audio J2250.1 - page 14

    14 JL Audi o “How do I pro perly set the i nput sensiti vity on my am plifier” Plea se ref er to Appen di x A ( page 12 ) to set the inpu t sensi tivit y fo r ma x imu m, low-d istor t ion out put . “My amp lif ier do esn’t tu rn o n” Che ck the fuse, not just visua lly , bu t with a continuity meter . It is pos sible for a f use to have ...

  • JL Audio J2250.1 - page 15

    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). T he f reque ncy us ed sho uld be in the ra n ...

  • JL Audio J2250.1 - page 16

    16 JL Audi o INST ALLA TION NO TES: Use this diagram to document your amplifier’ s switch and control positions. LP Filter Fr equency (Hz) Input Sens. Bass Boost Po we r Pr otect Remote Le vel Po rt LEFT RIGHT LEFT RIGHT Preamp Outputs Amplifier Inputs min max 60 240 O +9dB High-Level Inputs ...

  • JL Audio J2250.1 - page 17

    17 LP Filter Fr equency (Hz) Input Sens. Bass Boost Po we r Pr otect Remote Le vel Po rt LEFT RIGHT LEFT RIGHT Preamp Outputs Amplifier Inputs min max 60 240 O +9dB High-Level Inputs ...

  • JL Audio J2250.1 - page 18

    18 JL Audi o INST ALLA TION NO TES: ...

  • JL Audio J2250.1 - page 19

    19 INST ALLA TION NO TES: ...

  • JL Audio J2250.1 - page 20

    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 . Should serv ice be nece ...

Manufacturer JL Audio Category Car Amplifier

Documents that we receive from a manufacturer of a JL Audio J2250.1 can be divided into several groups. They are, among others:
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All of them are important, but the most important information from the point of view of use of the device are in the user manual JL Audio J2250.1.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals JL Audio J2250.1, service manual, brief instructions and user manuals JL Audio J2250.1. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product JL Audio J2250.1.

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A complete manual for the device JL Audio J2250.1, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use JL Audio J2250.1 by users. Manuals are usually written by a technical writer, but in a language understandable to all users of JL Audio J2250.1.

A complete JL Audio manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual JL Audio J2250.1 - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the JL Audio J2250.1, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the JL Audio J2250.1, that we can find in the current document
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5. FAQ - Frequently Asked Questions
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