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JL Audio f212 - page 1
f 21 2 Owne r’ s M an ual ...
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JL Audio f212 - page 2
Pag e 2 | Fathom f2 12 IMPORT ANT S AFETY INSTRUCTIONS 1 ) Read t he Inst ruc tions — A l l sa fety a nd operat ing i nst r uct ions should be read before the subwoofer is operated. 2 ) Reta in t he Inst ruc tions — e s a fety a nd operat ing i nst r uct ions sho u ld be ret a i ned for f ut u re refere nce . 3) He e d Wa r n i n g s — A ...
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JL Audio f212 - page 3
Pag e 3 | Fathom f2 12 12) Cle a n i ng — e subwoof er should be c leaned on ly as rec ommended in t he o pe ratin g instru cti on s. 13 ) Non us e P er iods — e p ow er cord of the subwoofer sh ou ld be unplugged f rom the outlet w hen the subwoofer is le u nused for long period s of ti me. 1 4 ) Lig htni ng and Pow er Surge s — W ...
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JL Audio f212 - page 4
Pag e 4 | Fathom f2 12 FC C COMP LIA NCE ST A TEMENT NOTE : is equ ipment has b een t est ed a nd found t o comply w it h t he li m its of Pa r t 15 of the F CC Ru les. es e li mit s a re des ig ned to prov ide re as onable prot ec tion a ga i nst ha r mf u l i nter ferenc e in a resid enti a l in sta l lat ion . is equ ipment gener ate ...
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JL Audio f212 - page 5
Pag e 5 | Fathom f2 12 W e si ncerely t ha nk you for yo u r purchas e and i nvite you to read th is manua l t horough ly in order to achie ve the hig hest level of per formance w ith your Fathom subw oofer system . Enjoy . PRO DUC T OVE RVI EW JL Audio Fa tho m subwoofers combine a state -of- t he-a r t JL Audio subwoofer driver a nd elect ronics/ ...
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JL Audio f212 - page 6
Pag e 6 | Fathom f2 12 PLA CING Y OUR F A THOM IN Y OUR LIST ENING ROOM: Y our l isten ing ro om or theater is a n i ntegr a l par t of your s ound reproduct ion sy stem. e physica l d i mensions of the room a nd its f ur ni shi ngs, mater ia ls , doors a nd wi ndows play an i mport a nt role in de ni ng how your sy stem sou nds. W hen you p ...
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JL Audio f212 - page 7
Pag e 7 | Fathom f2 12 .03&*/5&/4& 4.005)&3 3&$0..&/%&% 46#800'&3 1-"$&.&/5 ;0/&4 ' PS4JOHMF4VCXPPGFS 4.005)&3 4.005)&3 .03&*/5&/4& 4.005)&3 4.005)&3 4.005)&3 $0.130.*4&%4&" 5*/(104*5*0/4 3FTVMUTJOXFBLFS ...
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JL Audio f212 - page 8
Pag e 8 | Fathom f2 12 SPEC IAL C ONSIDER A TIONS F OR BUIL T -IN INST ALLA TIONS Fathom subwoof ers a re desig ned to be “ bu ilt- i n ” f riend ly . A ll t y pica l ly needed c on t rols a re located on t he front panel ab ove the woofer . A Fa t hom ca n be ea si ly integ rated i nto custom ca binet r y by followi ng a few simple gu idel ine ...
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JL Audio f212 - page 9
Pag e 9 | Fathom f2 12 Recomm ende d Subwoofe r Placeme nt Opt ions for T wo F ath oms Using T wo F ath oms W hen usi ng two Fat homs, tr y placement near t he f ront co r ners of the room, at di agona l ly -opp osite corners of the ro om, or at the center point s of opposing w a ll s as shown at r ight. Ex per i mentation w it h subwoof er a nd li ...
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JL Audio f212 - page 10
Pag e 10 | Fathom f2 12 Recomm ende d Subwoofe r Placeme nt Opti ons for Thre e F ath oms Recomm ende d Subwoofe r Placeme nt Opt ions for Fou r F atho ms Using Thre e or Four Fathoms Rese arch i ndicate s th at the smoot hest bas s response for a large li steni ng a rea ca n be ach ieved usi ng four subwoof ers, plac ing one at t he midpoint of ea ...
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JL Audio f212 - page 11
Pag e 11 | Fathom f2 12 Detailed instruct ions on unpacking the subw oofer: 1 . Place t he ca r ton on the oor nea r its i nten ded lo cat ion in t he room. 2. Op en the top of t he ca r ton ( obser ve ma rk ings on c ar ton ) a nd remov e t he ma nual , ca l ibration mic roph one and power cord. 3. T em pora r i ly remov e t he split -foam pac ...
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JL Audio f212 - page 12
Pag e 12 | Fathom f2 12 Front Control Pane l e lab eled Figu re below depicts t he f ron t control pa nel of a Fathom f21 2 subwoofer . A.R.O . page 1 4- 15 Power page 1 4 Input Mode page 15 Level Mode page 15 Master Le vel page 1 6 Lights page 1 6 LP Filter page 1 6 LP fr eq. (H z) page 1 6 e.l.f. trim (dB) page 1 7 phase ( deg.) page 1 7 Pola ...
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JL Audio f212 - page 13
Pag e 13 | Fathom f2 12 Rear Contro ls and Connec tors e lab eled Figu re below depicts t he rea r panel of a Fathom f212 sub woofer . Balanced Inputs page 1 8 Unbalanced Inputs page 1 9 IEC-St y le AC Conn ec tor page 2 1 Output to Slave Co nne ct or page 2 1 Inp ut M od e Swit che s page 20 ...
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JL Audio f212 - page 14
Pag e 14 | Fathom f2 12 FR ONT P ANEL CONT ROLS IN DET AIL Power Swit ch e “Po wer” sw itch determ i nes t he operationa l readi ness of t he Fathom subwoof er a nd should be t he only sw itch u sed to t ur n t he Fathom on and o . Do not use a p ow er st r ip switch, s w itched outlet or a ny other ex tern al s w itch as t hese may resu ...
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JL Audio f212 - page 15
Pag e 15 | Fathom f2 12 Demo Button e Demo button t rig gers a 20 s econd long to ne sequenc e t hat brie y demonst rates t he sig na ls us ed dur i ng A.R .O . c a librat ion. e Demo f unc tion is usef u l for sho wca sing t he output capabi lit y of t he Fa t hom and to veri f y t hat t he Fathom ( or mu ltiple Fa t homs ) are operat i ...
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JL Audio f212 - page 16
Pag e 16 | Fathom f2 12 Maste r Lev el K nob e Ma ster Le vel K nob is use d to control t he output level of the Fathom when t he V a riable L evel mode i s selec ted on t he front control pa nel. W hen rotated f u lly c ounter clock w ise , t he Fa t hom ’ s output wi l l be f u l ly muted. W hen at the “0” or st ra ight up posit ion, th ...
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JL Audio f212 - page 17
Pag e 17 | Fathom f2 12 E.L.F . T ri m e E x treme L ow F requenc y (“ e.l .f. tr i m ”) k nob a l lows t he user to apply a cer ta i n amou nt of signa l equa l iz ation at 25 Hert z ( ex tremely low bass ). A t f u ll c ounterclock wi se rotat ion, the sig na l at 25 Hz is c ut by 1 2 d B. At “0” t he equa l iz er is se t at for z ...
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JL Audio f212 - page 18
Pag e 18 | Fathom f2 12 C O N N E C T I N G YO U R FAT H O M Balanced Inputs If you r hom e-t heater receiver or preampl i er/proce ss or prov ide s ba l a nce d outputs, t he Fathom’ s ba la nced inputs a re the preferred connec t ion. Ba la nced connec t ions are us ed ex tensively in professiona l st udios a nd sou nd reinforcement applicat ...
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JL Audio f212 - page 19
Pag e 19 | Fathom f2 12 Unbalanced Input s e Fathom subwoofer f eat ures i ndiv idua l le a nd rig ht unba la nced RCA- t y pe i nput connectors . es e are t he most com monly us ed connec tors for hom e audio applic ations a nd must be us ed i f your receiver or prea mpli er/p roc ess or does not provide ba la nced outputs . W hi le ...
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JL Audio f212 - page 20
Pag e 2 0 | Fathom f2 12 Inpu t Mode Switc hes: T wo switche s are loc ated on the rea r pa nel to control unba la nce d signa l grou ndi ng and ma ster/ slave operat ion. “Groun ded / Iso lated ” Switch e “Grounded / Isol ated ” Input Mode sw itch a ec ts only t he u nba la nced RCA inputs a nd is desig ned to fac il itate a qu iet ...
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JL Audio f212 - page 21
Pag e 21 | Fathom f2 12 “Out put to Slave” Connec tor If you a re operati ng more t ha n one F at hom sub woofer in one home theater sys tem, you wi l l desig nate one F at hom as t he Master ( see pa ge 20 ), and t hen feed signa l f rom it to the rema in ing “ Slave” F at homs v ia t his ba la nced X L R output. e “Out put to Slav e ...
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JL Audio f212 - page 22
Pag e 2 2 | Fathom f2 12 SYSTEM CON NEC TIO N DIAGR AM 1 : One Fath om to Hom e Theate r Rece iver or Home Theater Preamp/Proc essor Most home t heate r recei vers and prea mp/p roc es sors prov ide a si ng le ( mono ) subwoofer out put. W hen con nect i ng a mono subwoofer out put to your Fat hom, you w i l l on ly us e t he Fat hom’ s “L e ...
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JL Audio f212 - page 23
Pag e 2 3 | Fathom f2 12 SYSTEM CON NEC TIO N DIAGR AM 2: Mul tip le Fathom s to Hom e Theate r Rece iver or Home Theater Preamp/Proc essor T o g reat ly si mpli f y u sin g mult iple subwoofers i n a sing le home t heater sy stem, Fat homs i ncor por ate a “Mas ter/Slave” sign a l di st ribut ion s ystem . i s a l lows control of a l l t h ...
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JL Audio f212 - page 24
Pag e 24 | Fathom f2 12 STEREO ACTIVE CROSSOVER (BALANCED OUTPUTS) LOW OUT (SUB OUT) OR STEREO ACTIVE CROSSOVER (UNBALANCED OUTPUTS) RIGHT LEFT LOW OUT (SUB OUT) F A THOM REAR CONTROLS (MASTER) SYSTEM CON NEC TIO N DIAGR AM 3: One Fath om in Mo no to T wo- Cha nne l Audi o System W hen conne ct i ng a Fathom ( or mult iple Fat homs) in mono to a t ...
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JL Audio f212 - page 25
Pag e 2 5 | Fathom f2 12 SYSTEM CON NEC TIO N DIAGR AM 4: T wo F at homs i n Ster eo to T wo- Cha nne l Audi o System W hen conne ct i ng t wo Fathom s in stere o to a two -ch an nel aud io sy stem you w i ll on ly u se t he “L e or Mono” input s of eac h Fat hom. e uppe r “Input Mode” sw itc h on each Fat hom w i l l be s et i n th ...
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JL Audio f212 - page 26
Pag e 2 6 | Fathom f2 12 REC OMMENDED SETUP PROC EDURES 1 ) Prepa rat ion fo r S etup Pro cess: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 6-2 7 2 ) Le vel Set t ing: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 3 ) P ola rit y/Phase Adjust ment: . ...
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JL Audio f212 - page 27
Pag e 27 | Fathom f2 12 On th e F ath om’ s F ront Pan el: Ple a se t u rn o t he home theater receiver or preamp/p roce ssor to ma ke t hese adjustm ents . 1. “Pow er” Sw itch Fl ip each Fat hom ’ s “Po wer” sw itch to t he “On ” posit ion. 2. “ Li gh t s” S wi t ch Fl ip each Fat hom ’ s “L ight s” sw itch to t he “ ...
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JL Audio f212 - page 28
Pag e 2 8 | Fathom f2 12 REC OMMENDED SETUP PROC EDURES (co n t i n u e d ) Subwoo fer System Se tup: Once you have set t he con t rols on your home the ater receiver or p rea mp/ proces sor and on your Fat hom ( s ) to the s et ti ngs recom mended on pages 26 a nd 27 , yo u a re ready to beg i n set t ing up your Fat hom fo r opti mum p erforma nc ...
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JL Audio f212 - page 29
Pag e 29 | Fathom f2 12 4 ) A pp lying Au t om ati c R oom Op timizati on ( A.R . O . ) Y ou are now ready to apply the power of JL Audio’ s exclusive Automatic Room Op timiza tio n sys te m. is s ystem w i l l mea sure t he response of t he subwoof er at your pr ima r y l isten ing s eat a nd apply a pow er f u l equa l iz er to ta me t he p ...
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JL Audio f212 - page 30
Pag e 3 0 | Fathom f2 12 h ) With in 5 s econds of pressi ng t he “ C a librate” button, ret u rn to you r prim ar y li steni ng se at and hold t he microphone in your norm a l, seated he ad posit ion at t he appro x i mate height of your ea rs . i ) A serie s of quick, s tepped tones w i l l beg i n which a re us ed by t he A.R .O . so wa r ...
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JL Audio f212 - page 31
Pag e 31 | Fathom f2 12 FREQUENT L Y ASKED QUESTIONS Ca n I plac e objects on my subwoof er? W e do not recommend placi ng a ny items on the subwoof er ca binet as t hey may v ibrate, cau sing u ndesi rable noise a nd possible d ama ge to t he ni sh. U nder no ci rcum sta nce s should a ny ob jec t contai n ing l iquid be place d on the Fat hom ...
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JL Audio f212 - page 32
Pag e 32 | Fathom f2 12 C L E A N I N G YO U R FAT H O M Dus t your Fathom subwoofer’ s cabi net usi ng a clea n, so mi cro ber c loth or feat her duster. Micro ber c loth s are com monly ava i lable where automotive deta i l ing supplie s are sold . Gloss -black mode ls: Lig ht smudges ca n genera l ly be w iped o w it h a clea n m ...
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JL Audio f212 - page 33
Pag e 33 | Fathom f2 12 TROUBLESHOOTI NG No sound f rom subw oofer . 1 . V erif y t hat Fathom is plugged i n, tu rned “ON” & t hat f ron t pa nel lig hts a re “ON” . If t he Fathom w i l l not po wer up, check t he circu it brea ker th at feeds its out let . 2. T est subwoofer using DEMO bu t ton on front panel – if sub em its demo t ...
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JL Audio f212 - page 34
Pag e 3 4 | Fathom f2 12 ...
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JL Audio f212 - page 35
Pag e 35 | Fathom f2 12 LIMIT ED W ARRANTY / SERVICE INF ORMA TION JL A UDIO war ra nts t hi s product to be f ree of defects i n materi a ls a nd workma ns hip for a period of t hree ( 3) y ea rs f rom the or igi na l date of purchase . Da mage cause d by the follow ing is not covered under wa rr ant y: ac cident, mi suse , abuse , product mod i ? ...
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JL Audio f212 - page 36
H W D Specifications f2 1 2 fatho m home subw oofer Enclosure T ype: Sealed Driver: Dua l 1 2-in ch (nomi nal dia meter) Frequency Response (anechoic): 20 - 97 Hz (+/ - 1.5 dB) -3 dB at 1 9 / 1 10 Hz - 10 dB at 1 5 / 157 Hz Effective Piston Area: 1 68 s q. in. / 0 . 1084 s q. m. Effective Displacement: 57 4 cu. i n. (9.4 liter s) Amplifier Power: 3 ...
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