JBL Power P1224 Handleiding

JBL Subwoofer Power P1224

Lees hieronder de 📖 handleiding in het Nederlandse voor JBL Power P1224 (4 pagina's) in de categorie Subwoofer. Deze handleiding was nuttig voor 11 personen en werd door 2 gebruikers gemiddeld met 4.5 sterren beoordeeld

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Pagina 1/4

THANK YOU

for purchasing a JBL®Power Series®subwoofer.

Subwoofer installation requires woodworking skills and

some experience in disassembling and reassembling

automotive interiors. If you lack the tools or necessary skills,

have your subwoofer installed by an authorized JBL dealer.

POWER SERIES®

P1024

P1022

P1224

P1222

car audio subwoofer

owner’s manual

CHOOSING AN ENCLOSURE

WARNING: Playing loud music

in an automobile can permanently

damage your hearing as well as

hinder your ability to hear trafﬁc.

We recommend listening at low

levels while driving. JBL accepts no

liability for hearing loss, bodily injury

or property damage resulting from

use or misuse of this product.

Power Series subwoofers are

optimized to perform best in small,

sealed, vented and prefabricated

bandpass enclosures. While

inﬁnite-bafﬂe mounting of

Power Series subs is possible,

power handling will be greatly

compromised because there’s no

enclosed volume of air to prevent

the speaker’s cone from moving

past its limit. For this reason, we

do not recommend inﬁnite-bafﬂe

mounting for Power Series

subwoofers.

You should choose the enclosure

you will use based on the type of

music you listen to, how much

ampliﬁer power you will use for the

subwoofer and how much space

inside the vehicle you can devote

to a subwoofer enclosure.

Because a sealed enclosure

provides the most control over

the woofer’s movement, a woofer

mounted in a sealed enclosure will

handle more power than a woofer

mounted in another enclosure type.

Sealed enclosures provide more

accurate sonic reproduction than

other enclosure types, so they are

well suited to all types of music.

Sealed-enclosure construction

is straightforward and there

are many prefabricated sealed

enclosures available. An optimum

sealed enclosure is always smaller

than other types of enclosures

optimized for a particular speaker,

so they require the smallest amount

of space inside the vehicle.

Vented enclosures provide better

efﬁciency in the 40Hz – 50Hz range

but this efﬁciency comes at the

expense of sound in the lowest

octave (below 40Hz) and at the

expense of some control and power

handling. If you are using a small

ampliﬁer, a vented box will provide

more bass output from less power.

Vented enclosures are also well

suited to a variety of music types.

Because vented enclosures require

the volume of the enclosure and the

size of the port to have a speciﬁc

relationship with the characteristics

of the woofer, the enclosure must

be built to the speciﬁcationsexactly

provided. While there are some

prefabricated vented boxes

available, matching a prefabricated

box to a particular woofer is difﬁcult.

If you wish to use a vented enclosure,

we strongly recommend having your

authorized JBL dealer build it, or

verify that your design is correct

if you wish to build it yourself. An

optimum vented enclosure is always

larger than the optimum sealed box

for the same woofer and will require

more space inside the vehicle.

Bandpass enclosures often

provide the most output available

from any ampliﬁer and subwoofer

combination at the expense of

sonic accuracy. If sheer SPL

(sound-pressure level) is what you

desire most, choose a bandpass

enclosure. Bandpass-enclosure

design is very tricky and the aid

of a computer and enclosure

design software is necessary. If

you are an experienced installer

or have some woodworking

experience, you may wish to build

the enclosure described in the

enclosure design sheet included

with this woofer. Fortunately, there

are many prefabricated bandpass

boxes available and they are all

optimized to extract the most

output possible from any woofer.

Bandpass enclosures can be quite

large and may require a lot of space

inside your vehicle.

JBL Power Series subwoofers

are available in two different

conﬁgurations: as dual 4-ohm voice

coils or as dual 2-ohm voice coils.

Depending on the ampliﬁers you are

using, you may use Power Series

subwoofers in singles or multiples

to maximize the power available

from your ampliﬁers. To achieve the

maximum ampliﬁer output possible,

you should design a speaker system

that provides the lowest impedance

that your ampliﬁer is rated to drive

safely. When designing a subwoofer

system, consider the following rules:

1. Don’t mix different subwoofer

or enclosure types in the same

system (use all dual 4-ohm

woofers or all dual 2-ohm

woofers).

2. You may connect the coils of a

dual-voice coil woofer in series,

but we recommend that you

avoid connecting separate

woofers in series.

3. You must use both coils of a dual-

voice coil woofer connected

either in series or in parallel.

4. Most ampliﬁers deliver exactly

the same amount of power

bridged into a 4-ohm load

as they do running a 2-ohm

stereo load.

To design a subwoofer system

that maximizes available ampliﬁer

power, keep the following rules

in mind:

1. The total system impedance

of woofers in parallel =

1 1 1

+ + ...

w1w2w3

where w is the nominal

impedance of the woofer.

2. The total system impedance

of voice coils (or woofers) in

series = w1+ w2+ w3...

The diagrams to the right

show parallel and series

speaker connections.

Figure 1. Parallel connection

Figure 2. Series connection

CONNECTING YOUR SUBWOOFER TO YOUR AMPLIFIER

POS ( + )

NEG ( – )

POS ( + ) NEG ( – )

Product specificaties

Merk:	JBL
Categorie:	Subwoofer
Model:	Power P1224

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