JL Audio 12TW3 User manual

OWNER'S
MANUAL
12TW3
Subwoofer
Driver
Congratulations
on
your
purchase
of
a
]L
Audio
subwoof
er
compo
ne
nt.
Your
]L
Aud
io
s
ubwo
ofer
is
a
precis
io
n l
oudspeaker
which
ha
sbeen
engineered
to
pro
d
uce
the
high
es
t qua
lity
sub-b
as
s
performanc
e
in
y
our
vehicle.
Auth
or
ize
d
]L
Audio
de
al
ers
ha
veex
tensive
t
echnic
al
informa
tion
for
man
y different
application
sof
yo
ur
n
ew
speak
e
r.
Th
ey
alsohave
th
e
kn
ow
ledg
e,
skills
and
tool
s
to
build
a
high-quality
enclosure
tha
t
will
maximi
ze
the
per
fo
rm
anc
e
of
your sp
eake
r.
We
hi
ghl
y
recom
me
nd
that
you
ha
ve
yo
ur
en
closure
built
by
an
autho
ri
ze
d
]L
Aud
io
d
eale
r.
Inside
you
will
find
specification
sa
nd
tw
o
recomm
en
ded e
ncl
osur
es
for
your
sp
eaker
;o
ne
isa
sealed
e
ncl
os
ur
e,
th
e
oth
erisa
port
ed de
sig
n.
Both
typ
es
of
e
ncl
o
sure
s
will
g
iv
e
you
excell
ent
so
und
quality and
lo
w-fre
qu
e
ncy
ex
ten
si
on.
T
he
se
aled
e
ncl
osure
is
a
bette
rc
hoi
ce
if
spa
ce
is
extre
mely
tight,
but
the
ported
enclosure
w
ill
prod
u
ce
3dB
more
ou
tput
at
t
he
same
po
wer
if
you
h
av
e
th
e
ext
ra
space
to
wor
k
wi
t
h.

Driver Displacement:
2
0 .029 ft3
0. 82 li ters
.JL AUDIO 12TW3·04
U .S. PATE N fS: 6,09 5 ,28 0 #5)3 4, 132 • Other U .S & Fore ign Pat ents Pending
* Xmax specifications are derived via one-way voice co il over hang me th od with no
corr ect ion factors app lied.
** Effici ency (1W/ 1m) is not an accurate i nd icator of a subwoo f er 'soutput capability
a nd shou ld no t be u se d as acomparison to ot h er su bwoo fers to ~ eterm ine which
o ne is "lou d er" !
u .. Re (DC res istance) ismeasured w ith the vo i ce coi ls in se ri es , fo r parallel -w i re d specificati on
di v id e Re by 4. A ll ot her spec ifi cations remain th e same.
All specifications a(e s ub ject to change witho ut no tice.
.JL AUD IO 1 2TW3·D4

Voice Coils Wired in Series
(Multiple speake
rs
wired
in
Pa
rallel)
~
01
..
~~
.
@(~
AMPLIFIER
sn
~u
•
AMPLIFIER
4(}
r •
AMPLIFIER
2
•
7
n
p
Voice Coils
Wired
in Parallel
(Multiple speakers wi
re
d in Paralle
l)
0.70
12TW3-D4
0.80
ft
3
22.7
liters 21
.25
in x 16 in x
6.5
in
540
mm
x 406 mm x 1
65
mm 37.99 46.
97
0.9426
·The enclosure recommendations listed
are
external
dimen
sions
wh
i
ch
ass
ume
th
e
use
of
3/
4"
(19mm)
thick mate
ri
al.
If you are using 5/8" (16mm) thick
material, subtra
ct
1/4" (6.5mm) from each dimension.
Do
not
use
any mate
ri
al
with a thickne
ss
of
l
ess
than
5/8" (16mm)
as
this may compromise the rigidity
of
the enclosure.
·Enclosure
volumes
listed are
net
internal volumes!
Box
vol
um
e displacement,
port
displacement and
br
ace
displaceme
nt
must be added
to
obtain the
final gross internal volume. All enclos
ur
e dimensio
ns
listed have already taken thisinto account.
·When usi
ng
two
subwoo
f
ers
in a
commo
n
enclosure si
mply
double
the
required volume.
·We recommend the
use
of
th
is
spe
ake
rinabi-amplified
system
usi
ng high-q
ua
li
ty
sate
llite
spea
ke
rs and
amplifier
s.
We
do
not recommend the u
se
of
this
subwoofer
wit
ha passive crossover (co
il),
as
thistype
of
dev
ice
wi
ll
adver
sely
affect performance.
Prolongedexpos
ur
etosound pressure levels in
exce
ss
of
1
OOdB
ca
n
cause
permanenthearing l
oss
.
Thi
shigh-performan
ce
speaker
can
exceed this leve
l.
Please
exer
cis
e restraint in its operation in orderto preserve your ability
to
enjoy its fidel
it
y.
When installing a subwoofer in
your
vehicle,
it
is extremely
impo
rtant to
sec
ur
e
the
enclosu
re
firmly.
We
recommend
bolting
the enclosure
th
rough
the
metal of the floorpan
or
the
frame
of
the
vehicle w
ith
large diameter washers
for
reinforcement.
If
an enclosure
is
n
ot
fir
ml
y attached,
it
can become a projectile
in
a collision.
Th
is
is
particularly
important
in a hatchback, station wagon, spor
ts
utility
vehicle, or van.
A
ll
spec
i
fica
tions
are
subje
ct
to
change
wi
tho
ut
no
ti
ce.
.JL
AUDIO
12TW3-D4
12TW3 Dual Voice Coil Wiring
Please Note:The
TW3
isa
du
al voice coil dri
ver.
BO
THvoice co
ils
mu
st
be connected to the amplifier
(in
seri
es
or
parall
el
) for
the
speaker
to
operate
prope
rl
y.
To
accomp
lish
thi
s,
each TW3 f
ea
tures a pair
of main i
nput
connection push-terminals for each
voice coi
l.
Veri
fy that the connectionsare properly
configured
ba
se
d on these wiring diagramsto
achieve thed
es
ired load prior to sending signal to
the
su
bw
oo
f
er.
~\
/
.;:;-
0
~
•
0 •
A
Portedtvented
enclosure is NOT RECOMMENDED
for
the
12TW3-D4
Subwoofer Driver.
3

RECOMMENDED CONTINUOUS (RMS)
POWER
RANGE
FOR
ONE
SUBWOOFER
DRIVER:
7SW
I
12TW3
t
rGEND:
12
\W
250W
so
ow
I O
OOW
M
INIMUM
O
PT
IM
UM
MA
XI
MU
M
WARRANT
Y
VOID
MEDIUM
GRAY
(MINIMUM):
F
rom
areliability
standpoint
,
th
iszone represents
a very comfortable operating power range
for
each driver. This level
of
power will
not
s
tr
ess
the
wo
ofer
but
will n
ot
extract all
of
its performance
po
tential, either.
Use
of
less
th
an the
minim
um
power level
will
not
damage
the
woof
er,
but
m
ay
result
in
unsatisfactory performanc
e.
LIGHT
GRAY
(OPTIMUM):
This zone represents
th
e best compromise
be
twee
n
l
ong~
term
reliabi
lity
,
high
~
outp
ut
and
l
ow
-distortion perform
ance
. This power level
is
lower than
th
e woofer's continuous power rating
(as
pub
lished in
it
s specifications), b
ut
you will still
be
taki
ng
a
dv
a
nt
age
of
the
woo
fer
's
,low-distor
tion
perf
orm
ance range
without
un
due
ri
sk
of
failure.
DARK
GRAY
(MAXIMUM):
Sl
i
ght
ly more
SP
L w
ill
be gained by pushing
t
he
power
into
this zone,
but
typically
not
more
than 2dB, com
pa
red
to
th
e lig
ht
gray zon
e.
The
subwoof
er driver
is
designed to opera
te
safely
up
to
this power range, b
ut
not
beyond. Operate
w
it
h caution.
BLACK
(WARRANTY
VOID):
We
do
not
recommend operati
ng
wo
ofe
rs
at th
is
level
of
power. In this zone,
th
ere
is
a very hi
gh
prob
ab
ility
that
the
dr
iv
er
will
fa
il due to excessive
heat
and
/or mechan
ic
al stre
ss
.
Subwoofer
dr
ivers operated
at
these levels
of
powerare
NOT
covered underwarranty.
JL
Audio offers an extensive line
of
high-performance subwoofer drivers
to
fit
a wide variety
of
enclosure
and
power applications.When designing systems
with
ourdrivers,
it
is
very i
mportant
to
achieve a
good powermatchbetween the subwoofer amplifierand the subwooferdriver'scapabilities. The
power
levels listed in
the
above chart represent continuous (RMS} amplifierpower
per
wooferand
ass
u
me
that
the
userwill regularly makefull use
of
that
power
without
drasticallYoverdriving
the
amplifierfsl
.
Make
sure you factor system impedance
and
the
total
number
of
subwoofers
into
yourcalculations.
Adhering
to
these power recommendations will result in systems
that
are both reliable and enjoyable.
JL AUDIO LIMITED WARRANTY (USA)
Automotive Subwoofer Components
JL
AUD
IO
wa
rrants this speaker
to
be free
of
defects in materials and
workmanship for a period
of
one
(1)
year fr
om
the original date
of
purch
ase
Damage
cause
d by the following isnot cove
re
d under
wa
rr
anty:accident, m
isu
se,
ab
use,
product modification or negle
ct
, f
ai
lu
re
to
follow in
sta
ll
ation i
ns
tructions,
unauthori
zed
re
pa
ir a
tt
empts, misrepr
ese
ntations by the
se
l
le
r.
This w
ar
ranty d
oes
not cover incide
nt
al
or
con
se
qu
ential damages and does
not
cover the co
st
of
re
moving or
re
installing the unit(s). Cosmetic damage due
to
accident or normal
wear and tear
is
not co
ve
r
ed
under warran
ty
.
Thiswarrantyis
nottransferableand
applies
only
to
the
original
purchaser
of
the
product
from
an authorized JL AUDIO dealer. Warranty is voided
if
the
factory-applied
product
serial
number
is removed
or
defaced.
Should
se
rvice be nec
essa
ry under th
is
warranty for any
rea
son
due
to
manufacturing defect or
ma
lfunction,
JL
AUDIO will,at itsdiscretion,
repa
ir or
re
place
the defecti
ve
product with new or
re
ma
nufactured product at no charge.
Any applicable implied w
ar
ranties
are
limited in
du
ration
to
the period of the expr
ess
warranty
as
provided herein beginning with the date
of
the orig
ina
l purc
hase
at
retail,
and
no warranti
es,
wh
eth
er
express or implied,
sha
ll apply to
th
is product
thereaft
er.
Som
e s
ta
tes
do not allow li
mi
tations on implied warranti
es
, therefore
th
ese
exc
lusio
ns
may
not
apply
to
you. Thiswarranty giv
es
you specific
le
ga
l rig
ht
s,
and y
ou
m
ay
al
so
h
ave
other righ
ts
which
va
ry from state to state.
If
you
need service on
your
JL AUDIO
product:
All
wa
rranty returns should be
sen
t
to
JL
AU
DIO freig
ht
prepaid thr
ou
gh
an
au
tho
ri
zed
JL A
UDI
O dealer and must be accompanied by pr
oo
f
of
purch
ase
(a copy of the original
sa
l
es
receipt.) Direct returns from co
nsu
mers or
non~
author
ized
dealers will be r
efuse
d unl
ess
specif
ic
al
ly
au
thori
zed
by JL A
UD
IO
with
a
val
id return authorization nu
mbe
r.
Warra
n
ty
expi
ra
ti
on
on products returned
witho
ut proof of purchase w
il
l be determined from t
he
manufacturing date code.
Coverage may be invalidated asthisdate
is
previous
to
purchase dat
e.
Return
only
de
fecti
ve
compone
nt
s.
Non
~
de
fec
t
ive
itemsrece
ive
d will be returned
f
re
i
g
ht~co
l l
ect.
Customer isresponsible for
sh
i
pp
ing
cha
rg
es
and
ins
u
ra
nce in sending the product
to
JL
AUDIO.
Freight damage on
re
tu
rns
is
not covered und
er
warrant
y.
Al
ways
include proof
of
purchase
(sal
es
receipt
).
ForService
Information
in
the
U.S.A. pleasecall:
Pri
nted
in
U
SA
JL
Audio customer
se
rvi
ce:
(
95
4)
443
~
1100
during
norm
al bus
in
ess
hour
s (Eastern Time)
JL Audio,
Inc
10369 North Comme
rce
Parkwa
y,
Miramar, FL330
25
International
Warranties:
Productspurchased outside the
Un
ited
Sta
tes
of
Ame
rica are covered only by that countr
y's
distributor and not by JLAudio,I
nc.
JL
12T
W3~
07~
11
~20
1
3
_
01
12
44