JL Audio 12TW1-4 Owner's manual

OWNER'S

MANUAL

12TW1-4

Subwoofer

Driver

Congratulations

on

your

purchase

of a

JL

Audio

subwoofer

component.

Your

JL

Audio

subwoofer

is

a

precision

loudspeaker

which

has

been

engineered

to

produce

the

highest

quality

sub-bass

performance

in

your

vehicle.

Authorized

JL

Audio

dealers

have

extensive

technical

information

for

many

different

applications

of

your

new

speaker.

They

also

have

the

knowledge,

skills

and

tools

to

build

a

high-quality

enclosure

that

will

maximize

the

performance

of

your

speaker.

We

highly

recommend

that

you

have

your

enclosure

built

by

an

authorized

JL

Audio

dealer.

Inside

you

will

find

specifications

and

two

recommended

enclosures

for

your

speaker;

one

is

a

sealed

enclosure,

the

other

is

a

ported

design.

Both

types

of

enclosures

will

give

you

excellent

sound

quality

and

low-frequency

extension.

The

sealed

enclosure

is

a

better

choice

if

space

is

extremely

tight,

but

the

ported

enclosure

will

produce

3dB

more

output

at

the

same

power

if

you

have

the

extra

space

to

work

with.

2

.JL

AUDIO

12TW1-4

U.

S.

PA

TE

NT

S:

#

6,095

,

280

#8

,

37

4,3

79

#

5,73

4,

132

I

Other

U.S.

&

Fore

i

gn

patents pending.

• Xmax specifications are derived via

one

-

way

voi

ce coil overhang

method

with

no

correction

factors

app

lied.

**

Efficiency (

1W

/1 m) is

not

an accurate indicator

of

a

subwoofe

r's

output

capa

bility

and

should

not

be

used

as

a comparis

on

to

other

subwoofers

to

determine

which

one

is "

louder

"!

All specifications

are

subject

to

change without notice.

..J

L

AUDIO

12TW1-4

All

specifications

are

subject

to

change

with

ou

t notice.

~

\

~

12TW1-4

18.4

1 litres 673

mm

x 356 mm x 140 mm 0.890

!0

1-

•

~

I

12TW1-4

806 rnm

x

406 rnm

x

178

mm

14

0

mm

x

57

mm

x

575

mm

·The enclosure

rec

ommendations listed a

re

external

dimensions which

ass

ume the

use

of

3/4" (19mm)

thick material.

If

you

are

using

5/8"

(16mm) thick

mate

rial,

subtract 1/4" (6.5mm) from

each

dimen

sion.

Do not u

se

any mat

eri

al

with a thic

kn

ess

of

l

ess

than

5/8"

(16mm)

as

this may compromise the rigidity

of

the enclosure.

•

All

enclosure volumes listed are

net

internal volumes!

Box

volume displacement, port displacement and

bra

ce

di

sp

lacement must be added

to

obtain the

final

gro

ss

internal volume.

All

enclosure dimensions listed

have alr

ea

dy

taken

th

is into account.

·When

using

two

subwoofers in a

common

enclosure simply

double

the required volume

and,

in

th

e

case

of

a ported enclosure, use

two

times the

recommended port

(s)

.

·W

e

re

co

mmend

the u

se

of

thi

s speaker in a

bi-amplified

system using high-qual

it

y satellite

speakers and amp

li

fi

ers.

We

do

no

t

re

commend

the

use

of

this s

ubw

oo

fer

with

a passive crossover

(coil),

as

this type

of

device will adversely affect

performance.

.JL

AUDIO

12TW1-4

'+----0--+

1~

1

01

··

lr;:.

~~

.

~~;

1

Cutaway

View

P

ort

Wa

ll Len

gt

h:

20.

75 in.

(527

mm)

(

End

correction acc

ount

ed for)

Prolonged exposure

to

sound pressure levels

in

excess

of

lOOdB

can cause permanent hearing los

s.

This

high

-performance

speaker can exceed

thi

s leve

l.

Please

exercise restrai

nt

in its ope

ra

tion

in order

to

preserve

your

abili

ty

to

enjoy its fidelity.

When installing a

subw

oof

er

in

your

vehicle,

it

is

extremely

imp

orta

nt

to

se

cure

the

enclosure

fi

rmly. We re

co

m

mend

bolting

the

enclosure

through

the

metal

of

the

floorpan or

the

frame

of

the

vehicle with large diameter washe

rs

for

reinforcement.

If

an

enclosure

is

not

firml

y attached, it can become a

pro

jec

tile in a coll

is

ion. This

is

particularly

import

ant

in

a hatchback, st

at

ion wagon, sports

util

i

ty

vehicle,

or

van.

A

ll

specifi

c

at

i

ons

are

subject

to

change

wi

thout

notice

.

3

RECOMMENDED CONTINUOUS (RMS) POWER RANGE FOR ONE SUBWOOFER DRIVER:

30W

60W

1

2SW

2SOW

SOOW

1 2 T W 1

33WI~®""'

~.f

,

•. , I I

,,,,

_

...,.

____

111111

LEGE

ND

;Z?-"~

MEDIUM

GRAY

(MINIMUM):

From

a reliability standpoint, this z

one

represents

a very comfortable

op

e

ra

ting power range for

each driver. This level of

powe

r will

not

stress

th

e

woofer but will not extract all

of

its

performance

potential, either.

Use

of

less

than the

mi

ni

mum

power level will

no

t

dam

a

ge

the w

oof

er,

but

may result in

u

nsatisfact

o

ry

perfo

rm

anc

e.

MINIMUM

OPT

IMUM

LIGHT

GRAY

(OPTIMUM):

Th

is zone repres

ent

s the be

st

co

mpr

omise

between long-term reliability, high-

out

put

and

low-disto

rtion

performance.

Thi

s power

level

is

lower th

an

the woofer's co

nt

inuous power rating

(as published in its specifications

),

but you will still

be taking advantage

of

the

woof

er

's, l

ow

-distortion

performan

ce

range

without

un

due ri

sk

of

failure

.

MAX

I

MU

M W

ARR

ANTY

VO

ID

DARK

GRAY

(MAXIMUM):

Sli

ght

ly more S

PL

will

be

ga

ined

by

pushing

the power into t

his

zo

ne

, but typi

cal

ly not more

than 2dli, compared

to

the li

gh

t gray zon

e.

The

subwoofer driver

is

de

signed to operate safely

up

to

this p

ow

er range, b

ut

not beyond. Operate

with caution.

BLACK

(WARRANTY

VO

I

D):

We

do

not recommend operating woofers at this

level of power. In this zone, there is a very hi

gh

probab

ili

ty that the dri

ve

r will fa

il

due to excessive

heat

and/

or

mechani

ca

l

stress.

Subwoofer drivers Opet'ated

at

these levels

of

power

are

NOT

covered

under

war

ranty.

JL

Audio

offers

an

extensive

line

of

high-performance

subwoofer

drivers tO

fit

a

wide

variety

of

endosure

and

power

applications.

When·

designing

systems

with

our

drivers, it is

very

important

to

achieve a

good

power

match

between

the

subwoofer

amplifier

and

the

subwoofer

driver's

capabilities.

The

power

levels listed

in

the

above

chart

represent continuous (RMS)

amplifier

power

per

woofer

and

assume

that

the

user will

regularly

make

full use

of

that

power

without

drastically

overdriving

the

amplifierfsl

.

Make

sure

you

factor

system

impedance

and

the

total

number

of

subwoofers

into

your

calculations.

Adhering

to

these

power

recommendations

will

result

in

systems

that

are

both

reliable

and

enjoyable

.

JL

AUDIO LIMITED WARRANTY (USA)

Automotive Subwoofer Components

JL

AUDIO

wa

rrants

th

is speaker

to

be free

of

defects in materials and

workmanship f

or

a peri

od

of

one

(1) year from the original

dat

e

of

pur

ch

a

se.

Damage

cau

se

d by the fo

ll

owing is not covered under warranty: acc

id

en

t, m

isuse

,

a

buse,

product modification or neglec

t,

fail

ure to follow insta

ll

ation i

ns

tructions,

unauthorized

re

pair attem

pts,

misrepr

esen

tations by the selle

r,

This warra

nt

y does

not cover incidental or con

se

quential dam

ages

and

do

es

not cover the cost of

re

moving or rei

ns

t

all

ing

th

e unit

(s)

,

Cosm

et

ic damage due to a

cc

ident or normal

wear and tear

is

not

covered

un

der warranty.

This

warranty

is

not

transferable

and

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.

Sho

ul

d

se

rvice be nec

es

sary under

th

is wa

rr

anty for any

re

ason

due to

ma

nu

fac

turing defect or

ma

lfunction,

JL

A

UDI

O will, at its dis

cr

et

ion, repair or re

pl

a

ce

the defecti

ve

product with new or remanufactur

ed

product at

no

charge.

Any applicable i

mp

lied

wa

rra

nties are

li

mited in duration

to

the

pe

ri

od

of

the

express

wa

rra

nty

as

provided herein beginning with the date of the origi

na

l

purch

ase

at retail, and no warranties, whether expr

ess

or i

mp

lied,

sha

ll

apply

to

th

is

product

th

erea

fter.

Some

sta

t

es

do

not allow limitations

on

im

plied

wa

r

ran

ties,

th

ere

fo

re

the

se

exclusions

ma

y not apply to you. This w

ar

ra

nt

y giv

es

you specif

ic

legal rights, and you may al

so

have other rights

wh

i

ch

va

ry

from

sta

te

to

s

ta

t

e.

If

you need service

on

your

JL

AUDIO product:

A

ll

wa

r

ran

ty

r

et

u

rns

should be

sen

t

to

JL

AUD

IO freight p

re

pa

id through an

autho

ri

ze

d JL AUDIO dealer and must be

acc

omp

ani

ed

by proof

of

pu

rchase

(a

copy of

th

e origi

na

l

sa

l

es

re

ce

ip

t)

Direct returns fr

om

consumers or n

on

-

authori

zed

d

ea

lers will be r

ef

u

sed

unl

ess

specifi

ca

l

ly

au

thor

ized by JL A

UD

IO

wi

th

a valid re

tu

rn

au

th

orization nu

mb

e

r,

War

ranty expirati

on on

produc

ts

returned

wi

th

out proof

of

purchase will be determined from the manufacturing

da

te code.

Co

ve

rag

e may be i

nva

lidated

as

this date is previous to purc

ha

se

date, Return only

defecti

ve

components, Non-defective items

re

ce

iv

ed

will be retu

rn

ed freig

ht

-co

ll

ec

t

Customer is responsible for

sh

ipping charges and i

ns

urance in sending

th

e product

to

JL

AUDIO,

Frei

ght

damage on returns

is

not cover

ed

under war

ra

nty. Always

inc

lu

de proof of purchase

(s

al

es

receipt),

For Service Information in

the

U.S.A. please call:

Printed in U

SA

JL Audio customer

se

rvice: (9

54

)

44

3-1100

du

ring normal busine

ss

hour

s (E

as

tern Time)

JL

Audio, Inc

10369 North

Co

mm

erce

Parkw

a

y,

Mi

ra

m

ar,

FL 33025

International Warranties:

Products purch

ase

d outside the United

States

of

Ameri

ca

are covered only by that coun

tr

y's di

st

ributor and

no

t by

JL

Audi

o,

I

nc

JLA

12

TWl _MAN_Ol

l259

_06_

26

_14

9£W£W£W£W£W£~W£~W£W£W£W£W£W£W£W£Wdf§l?£~

~

I Register this product I

I online and receive a I

~ ~

I FREE GIFT! I

~

~ ~

I Registering

is

simple... I

~

have the serial number handy

~

I and visit: I

~

http://registe.r.jl~~d_io.com

~

~ ~

I If you can't locate your

serial

number or I

~

have

questions about the registration

process,

~

l5l

please

caii1-888-JLAUDIO.

~

Printed in

USA

SKU#011309·02092011

~

~Wdl1W£W£W£W£W£W£W£W£W£W£W~\l?£\I?~\I?~W£W£\l?£W~

JL Audio 12TW1-4 Owner's manual

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