JBL W12GTi Handleiding

JBL Subwoofer W12GTi

Lees hieronder de 📖 handleiding in het Nederlandse voor JBL W12GTi (8 pagina's) in de categorie Subwoofer. Deze handleiding was nuttig voor 2 personen en werd door 2 gebruikers gemiddeld met 4.5 sterren beoordeeld

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Pagina 1/8

PRO POWER

Automotive Subwoofer Owner’s Manual W10GTi W12GTi W15GTi

Thank you for choosing a JBL GTi Series

subwoofer. GTi Series subwoofers are

designed to provide maximum sound

output in a variety of enclosure types

while maintaining the superb sound quality

associated with JBL. To ensure the best

subwoofer performance, we strongly

recommend that installation be entrusted

to a qualified professional. Although

these instructions explain how to install a

GTi Series subwoofer in a general sense,

they don’t show the specific installation

procedures that may be required for your

particular vehicle. If you feel you don’t have

the necessary tools or experience, don’t

attempt the installation yourself; rather,

ask your authorized JBL dealer about

professional-installation options.

Warning: Playing loud music in an

automobile can hinder your ability to hear

traffic, as well as permanently damage your

hearing. 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.

Your Car and Bass Reproduction

Depending on the size of the vehicle’s

interior listening space, reproduced

frequencies below 80Hz may be boosted

by nearly 12dB per octave as frequency

decreases. This effect, commonly known

as transfer function or cabin gain, plays

an important role in defining the in-car

frequency response of your subwoofer.

It is displayed graphically, along with

freespace response, on the enclosed

data sheet for your GTi subwoofer.

Power-Handling Limitations

The power-handling capacity of any

subwoofer is related to the excursion

limit of its suspension and its ability to

dissipate heat. A speaker reaches its

excursion-limited power-handling capacity

when its suspension is stretched to its

limit. The excursion curve shown on the

Enclosure Design Sheet (included with

your woofer) displays cone excursion at

the input power level required to drive

the woofer to maximum linear excursion

(Xmax). The input power shown may

be used as instantaneous input only.

Thermal power handling is determined by

the amount of heat that may be dissipated

by the driver s voice coil. The power- ’

handling rating assigned to your GTi Series

subwoofer is its thermal-power-handling

rating. This rating assumes a clean

(unclipped) signal. A clipped waveform

has much higher average power, due to

the longer duty cycle at the top and bottom

of the waveform; it will heat the woofer’s

voice coil faster than a clean signal and

may damage the voice coil. A square wave

has a 100% duty cycle and is extremely

dangerous for any speaker. Audible

distortion in the output of your woofer

is an indication that your amplifier may

be clipping, which could damage your

speakers over time.

The Official Brand of Live Music

Choosing an Enclosure

GTi Series subwoofers are optimized to

perform best in small sealed, vented and

bandpass enclosures. While infinite-baffle

mounting of GTi Series subs is possible,

power handling will be compromised since

there will be no enclosed volume of air

to help the speaker’s suspension control

the motion of the woofer’s cone. For this

reason, we do not recommend infinite-

baffle mounting for high-power applications.

You should choose the enclosure you ll use’

based on the type of music you listen to,

how much amplifier power you ll use to’

drive the subwoofer, and how much space

inside the vehicle you can devote to a

subwoofer enclosure. If you ll be using your’

GTi Series subwoofer for SPL competition,

please see the document titled GTi as SPL“

Competition Subwoofers” (included with

your woofer).

Because a sealed enclosure provides the

most control over the woofer s movement, a’

woofer mounted in a sealed enclosure will

handle more power at low frequencies 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. An

optimum sealed enclosure is always smaller

than other types of enclosures that are

optimized for a particular speaker, so they

require the least space inside the vehicle.

Vented enclosures provide better efficiency

in the 40Hz 60Hz range, but this –

efficiency comes at the expense of sound

output in the lowest octave (below 40Hz)

and at the expense of some control and

power handling below box tuning. 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. 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 can provide the

greatest 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 vented or bandpass

enclosure. Bandpass enclosure design is

very tricky and the aid of a computer and

enclosure design software is necessary if

you wish to design the enclosure yourself.

Like a vented enclosure, a bandpass

enclosure must be built exactly to the

specifications provided. Bandpass

enclosures can be quite large and may

require a lot of space inside your vehicle.

PRO POWER

Product specificaties

Merk:	JBL
Categorie:	Subwoofer
Model:	W12GTi

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