JL Audio M12IB6 User manual

Thank you for c hoos ing a JL Audio Mar ine Subwoofe r.
With pr ope r ins tallation, your ne w spe ake r
will de live r ye ar s of lis te ning ple as ure .
We str ongly r e c omme nd that you have your subwoofe r installe d
by your author ize d JL Audio de ale r. The installation
pr ofe ssionals e mploye d by your de ale r have the ne c e ssar y tools and e xpe r ie nc e to
pr ope r ly ins tall this pr oduc t. If you pre fe r to pe r for m
your own installation, ple ase r e ad this instr uc tion manual
c omple te ly be for e be ginning the pr oc e ss.
OWNE R ’S MANUAL
Marine Subwoofer
M12IB6

2 J L A U D IO M12IB6
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INS T AL L AT ION P R OC E DUR E
The diagram above showsthe typical
installation procedure into a fiberglasspanelusing
the supplied hardware (Classic Grille Modelshown.
Installation isthe same forSportGrille Models).
Alwaysfollow propersafety procedureswhen
working on a vessel.Use eye-protection atalltimes
and a dustmask and gloveswhen cutting.
1)Choose a flatmounting surface thathas
sufficient depth and airspace behind itto accept
the subwoofer.
2)Cuta 12.0625-inch (306 mm)diameterhole.
3)Run the speakercable to the mounting location.
4)Place the wooferin the hole and mark the screw
hole locationsusing a sharp,pointed tool.
5)Remove the wooferand drilla pilothole
(see charton nextpage)in each ofthe screw
locations. Itisalso advisable to use a hand-driven
countersink toolon each hole to furtherinhibit
gel-coatcracking offiberglasspanels.
6)Connectthe speakerwiresand place the woofer,
with itsgrille in place,into the opening (forSport
Grille models,pay attention to where the logo
badge willadded.
7)While holding the speakerfirmly in itsmounting
location,evenly snug the mounting screwsin a
criss-crosspattern,then hand tighten in a criss-
crosspattern.
Non-standard installationsmay require different
hardware.Always use marine-grade,stainless-steel
fasteners to ensure a secure,reliable installation.
We recommend the use ofthis speakerin a bi-amplified system using high-quality satellite speakers and amplifiers.
We do notrecommend the use ofthis subwoofer with a passive crossover (coil),as this type ofdevice willadversely
affectperformance.
A ll sp e c ific a tio n s a re su b je c t to c h a n g e w ith o u t n o tic e .
P HY S IC AL S P E C IF IC AT IONS INC L UDE D P AR T S
•One PolymerSubwooferGrille
•Six #10 x 1 5/8-inch (41 mm)pan-head
stainless-steelscrews
•Six #10 stainless-steelwashers
•Logo Badges(Sport-Grille ModelsOnly)
One PairBlack (White & Titanium/Black Models)
One PairRed (White & Titanium/Black Models)
One PairWhite (White Models Only)
One PairTitanium (Titanium/Black Models Only)
S u b wo o fe r P h y s ic a l S p e c if ic a t io n s
NominalDiameter: 12 in./300 mm
OverallDiameter(A): 14 in./ 356 mm
Mounting Hole Diameter(B): 12.0625 in./306 mm
BoltHole Circle (C): 12.813 in./325 mm
MotorOvermold OuterDiameter(D): 8.84 in./225 mm
Mounting Depth (E): 8.05 in./ 204 mm
NetWeight: 23.8 lbs./10.80 Kg
DriverDisplacement: 0.153 ft3/ 4.33 litres
S u b wo o fe r P a r a me t e r s M1 2 IB 6
Free AirResonance (Fs): 35.34 Hz
Electrical“Q”(Qes): 0.856
Mechanical“Q”(Qms): 10.389
TotalSpeaker“Q”(Qts): 0.791
EquivalentCompliance (Vas): 1.99 ft
3/56.35 litres
One-way,LinearExcursion (Xmax)*: 0.73 in./18.5 mm
Efficiency (1W/1m)**: 86.7 dB SPL
Effective Piston Area (Sd): 80.54 in²/0.0520 m²
DC Resistance (Re): 3.543 ohm
NominalImpedance: 4 ohm
Infinite Baffle Use: Yes
Enclosure Use: Yes (Sealed and Ported)
PowerHandling (continuous): 600W
* X ma x s p e c ific a tio n s a re d e riv e d v ia o n e -wa y v o ic e c o il o v e rh a n g me th o d with n o c o rr e c tio n fa c to r s a p p lie d .
* * E ffic ie n c y (1 W/1 m) is n o t a n a c c u r a te in d ic a to r o f a s u b wo o fe r ’s o u tp u t c a p a b ilit y a n d s h o u ld n o t b e u s e d
a s a c o mp a r is o n to o t h e r s u b wo o fe r s t o d e te r min e wh ic h o n e is “ lo u d e r ” !

The enclosure recommendations listed are externaldimensions which assume the use of3/4”(19mm)thick material.Ifyou are using 5/8”(16mm)thick material,subtract1/4”
(6.5mm)from each dimension.Do notuse any materialwith a thickness ofless than 5/8”(16mm)as this may compromise the rigidity ofthe enclosure.
Allenclosure volumes listed are netinternalvolumes!Box volume displacement,portdisplacementand brace displacementmustbe added to obtain the finalgross internal
volume.Allenclosure dimensions listed have already taken thisinto account.
J L A U D IO M12IB6 3
INT E R C HANGE AB L E L OGO B ADGE
(S p o r t -Gr ille Mo d e ls On ly )
Interchangeable Logo BadgesforSportGrille
modelsubwoofers are included to furthercustomize
yourinstallation.The design ofthe SportGrille allows
forthe JL Audio logo to be added in yourchoice of
included colors and oriented in the mannerthatbest
suitsyourinstallation.
NOTE: A leftand a rightbadge ofeach coloris
included.These two differentorientationsensure
the “JL Audio”Logo willread correctly wherever
positioned (mostcommonly the 3:00 or9:00
position).
Remove the adhesive backing from the badge
and affix the badge to the grille using the small
positioning hole as a guide.See diagram atright.
! ! C AUT ION ! !
While this speaker is designed to be water and
spray resistant,itis notdesigned to be submerged
or to withstand high-pressure water spray.
Please exercise care when washing your boat to
avoid damaging your speaker. Do not install on
submersibles, personal watercraft or any other
vessellikely to be underwateratany time.
Prolonged exposure to sound pressure levels in
excess of100dB can cause permanenthearing loss.
This high-performance speaker can exceed this
level. Please exercise restraint in its operation in
orderto preserve yourability to enjoy its fidelity.
When installing a subwoofer in your vessel, it is
extremely importantto secure itfirmly.Thisapplies
notonly to the wooferitself,butalso the structure
it is mounted to.Ifnotfirmly attached,the speaker
can become a dangerous projectile in a collision.
Please review the mounting information carefully
and use the supplied marine-grade hardware to
mountthisproduct.
A ll sp e c ific a tio n s a re su b je c t to c h a n g e w ith o u t n o tic e .
F ib e r g la s s T h ic k n e s s R e c o mme n d e d P ilo t Ho le Dr ill S iz e
0.125 in.(3.18 mm)orless 1/8 in.(3.18 mm)pilothole
foam core / fiberglass sandwich 1/8 in.(3.18 mm)pilothole
largerthan 0.125 in.(3.18 mm) 9/64 in.(3.57 mm)pilothole
# 1 0 S C R E W: P IL OT HOL E R E C OMME NDAT IONS
3 :0 0 P o s itio n
9 :0 0 P o s itio n
S u b wo o fe r R e c o mme n d e d S e a le d De s ig n
Vo lu me
(netint.)
E x te rn a l Dime n s io n s
(Width x Heightx Depth)
F 3
(Hz)
F c
(Hz) Qtc
M1 2 IB 6 3 ft³
85 litres
24 in.x 18.5 in.x 15.75 in.
610 mm x 470 mm x 400 mm 35.52 45.58 1.020
S u b wo o fe r R e c o mme n d e d P o r t e d De s ig n
Vo lu me
(netint.)
E n c lo s u re E x t e rn a l Dime n s io n s
(Width x Heightx Depth)
R o u n d P o r t S p e c s
(InnerDiameterx Length) P o r t In fo r ma tio n T u n e t o : (Hz)
F 3
(Hz)
M1 2 IB 6 5 ft³
141.6 litres
30 in.x 18.5 in.x 20.5 in.
762 mm x 470 mm x 521 mm
5 in.x 13.5 in.
127 mm x 343 mm
Round portrequiresa 90˚elbow
to fitin the specified enclosure 25 20.96
S e a le d De s ig n P o r te d De s ig n
E NC L OS UR E S P E C IF IC AT IONS
NOT E : T h e M1 2 IB 6 Ma rin e S u b wo o fe r is n o t
r e c o mme n d e d fo r u s e in P o r te d E n c lo s u r e s .