JBL Power P1020D II Manual

JBL Subwoofer Power P1020D II

Læs gratis den danske manual til JBL Power P1020D II (4 sider) i kategorien Subwoofer. Denne vejledning er vurderet som hjælpsom af 11 personer og har en gennemsnitlig bedømmelse på 4.6 stjerner ud af 6 anmeldelser. Har du et spørgsmål om JBL Power P1020D II, eller vil du spørge andre brugere om produktet?

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Side 1/4

Automotive Subwoofers Owner’s Manual P1020 II P1020D II P1220 II P1220D II

POWER SERIES

Thank you for purchasing a new

JBL Power Series subwoofer.

Subwoofer installation requires

woodworking skills and some

experience disassembling and

reassembling automotive interiors.

If you lack the tools or necessary

skills, have your subwoofer installed

by an authorized JBL dealer.

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

exactly to

the speciﬁcations 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.

Choosing an Enclosure JBL Power Series

Produkt Specifikationer

Mærke:	JBL
Kategori:	Subwoofer
Model:	Power P1020D II

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