JL Audio 450/4V2 manual

Th ank you for pu rcha sing a JL Audio ampl ifi er for your automotive sound system. Y our amplif ie r ha s bee n de sign ed and m anufac tured to e xa cti ng stan dard s in order to e ns ure years of mu si cal enjo yme nt in your vehic le . For ma ximum p er for ma nce an d ex tend ed war ranty cove rage, we hig hly rec ommen d that you have you r[...]

2 | JL Audio - 450/4 v2 Owner ’ s Manual 3 Cooling Efficiency Considerations: Y ou r JL Aud io a mpli f ier employs a n adv anc ed t y pe of he at ma nage ment, c al le d Rea l Sin k ™. Thi s feat u re ta ke s adv ant age of convec t ion a nd rad iat ion ef fe ct s to remove heat f rom t he a mpli f ier c irc uit r y. For optimu m cool i ng per[...]

4 | JL Audio - 450/4 v2 Owner ’ s Manual 5 TYPIC AL INST ALLA TION SEQUENCE The fol low i ng repre sent s th e seque nce for a t y pica l a mpl if ie r in st al l ation , usi ng a n af terma rket source unit or OEM In terfac e proc ess or (l i ke t he C lea nSwee p® CL4 41dsp) . Add iti ona l ste ps a nd d if fere nt proce dure s may be requ i r[...]

6 | JL Audio - 450/4 v2 Owner ’ s Manual 7 TURN  ON LEAD Th e 450/4v2 us es a c onvention al + 12V remote tu r n-on lea d, t y pic a l ly cont rol led by t he sou rce un it ’ s remot e tu r n-on out put. T he a mpli f ier w i ll UV S OPO XIFO  7J TQSF TFOU BUJU Ti Remote w input a nd t ur n of f whe n + 12[...]

8 | JL Audio - 450/4 v2 Owner ’ s Manual 9 2) i Fi lter Mod e/Slop e w $POU SPM5 I JT TX JUDI  a l lows you to defe at t he CH 1 &2 f i lt er or sele ct f rom two f ilte r slope s. i Off w % FG FBUTUIF GJ MU FSGP S$)   DPN QMFU FMZ  a llow i ng t he f u ll r a nge of f requenc ies pre sent[...]

10 | JL Audio - 450/4 v2 Owner ’ s Manual 11 1) i In fr as onic Fi lte r w 5IF JOGSBTP OJD G JMUF SJT B 24 d B/oct ave hig h-pa ss f i lt er , w ith a f ixe d DVU PGG GSFR VF ODZ PG )[5IJT G JMUFS JT designed t o co nserve amplif ier pow er and protec t subwo ofer sy ste ms w it hout aud ibly [...]

12 | JL Audio - 450/4 v2 Owner ’ s Manual 13 ST A TUS INDICA TOR LIGHTS / PROTECTION CIRCUITRY Th ere ar e th ree s tat us i nd ica tor li ght s on t he top of t he a mpli f ier. The se a re as fol lows : 1)  i Power w  Green ): li ghts to in d ica te tha t th e a mpli f ier is t u rne d on and op erat i ng norm a ll y . 2)  i T[...]

14 | JL Audio - 450/4 v2 Owner ’ s Manual 15 Cros sove r S etu p for Bi-Amp lif ie d Syste m with one 450/ 4v2: Once t he i nput se ct ion s have be en DP OGJHVSFEB QQ SPQ SJB UFM Z H PUP UIF i CH 1 &2 Fi lter Se ct ion w 4FM FDUi x1 w POU IF i Fre q. Ra nge wTX JUDI i LP w MPXQB TT?[...]

16 | JL Audio - 450/4 v2 Owner ’ s Manual 17 Af ter proper a djust ment of t he 45 0/ 4v2’ s CH 1 &2 a nd CH 3&4 , a nd th e subwoofer a mpl i f ier’ s i Input R an ge w BOE i I nput Sen s. w  ZPVD B OG J OF tu ne f i lter f reque ncies a nd slop es a nd at tenuate ei ther pair of chann els to achiev e p rope r b [...]

18 | JL Audio - 450/4 v2 Owner ’ s Manual 19 Cros sove r se tup f or bi- amp lif ie d 3.1 syste m wit h one 4 50/ 4v2 an d a sep arate s ubw oofe r amp lif ie r: Onc e the i nput a nd prea mp out put se ct ions h ave CFFO DPOGJHVSFEB QQS PQ S JB UF MZ H PUP UIF i CH 1 & 2 Filt er Se ct ion w  4 F M F D U  i x1 w?[...]

20 | JL Audio - 450/4 v2 Owner ’ s Manual 21 C) Subwo ofer L eve l Cont rol O nl y Req uired : a sou rce u nit or pro ce ssor w it h lef t, r ig ht a nd ded ica ted subwo ofer output s is re qui red . Inp ut Con ne ct ions : one s tere o pa ir of s ourc e un it out puts i s con nec ted to t he C H 1 & 2 JOQVU TPG U IF [...]

22 | JL Audio - 450/4 v2 Owner ’ s Manual 23 3) 4XJUD IUIF i Input V olta ge w UP i Lo w wB OE UVSOUIF i Input S ens . wD POUSPM POC PUI TF UT PG cha n nels a l l t he way dow n. 4) Se t t he sou rce u nit volu me to 3/4 of fu l l vo l ume. If e ither set of channels is b ein g driv en b y a so urce unit?[...]

24 | JL Audio - 450/4 v2 Owner ’ s Manual 25 “My am pl if ier s hut s of f on ce in a while, usually at higher v olumes” Che ck your volt age s ourc e a nd grou nd in g poi nt. T he power suppl y of t he 450/4v2 w i l l oper ate w it h cha rg in g sys tem volt age s do w n t o 1 0 V . Sh utdo w n p robl ems a t hi ghe r v ol ume l eve ls ca n[...]

26 | JL Audio - 450/4 v2 Owner ’ s Manual 27 APPEN DIX D: 450/4v2 Speci fi cat ions General Specifications: Recommended F use V alue: 60A Recommended F use T ype: AF S, A GU or MaxiFuse ™ Input Sections: No. of Inputs: T w o Stereo Pair s (CH 1 & 2, CH 3& 4) Inp ut T yp e: Differential-balanced with RCA jack inputs Input Range: Switchab[...]

28 | JL Audio - 450/4 v2 Owner ’ s Manual 29 INST ALL A TION NOTES: Use this diagr am to document your amplifier ’ s switch and control positions. +12VDC Ground Remote CH 1 & 2 Filter Section CH 1 & 2 Bass Control CH 3 & 4 Filter Section CH 1 & 2 Input Section CH 3 & 4 Input Section CH 3 & 4 Speaker Outputs Left Output R[...]

30 | JL Audio - 450/4 v2 Owner ’ s Manual 31 NOTES NO TES[...]

LIMI TED WARR ANT Y  AM PLIFIE RS USA +-" 6%* 0X BSSBOUT UIJTQ SPEV DUUP CF GSFF PGE FG FDUTJON BU FSJB MTB OE XPSL NB OTI JQ GPSB QFS JPE PG ninety ( 90 ) da ys fro m the original da te o f p urchase . Th e w arranty t erm is exte nd ed to two ( 2 ) y ears if JO TU B MM BUJ POJ[...]