Használati útmutató JBL W10GTi II

JBL mélynyomó W10GTi II

Olvassa el alább 📖 a magyar nyelvű használati útmutatót JBL W10GTi II (8 oldal) a mélynyomó kategóriában. Ezt az útmutatót 4 ember találta hasznosnak és 2 felhasználó értékelte átlagosan 4.5 csillagra

Letöltés PDF
Oldal 1/8
THANK YOU
for choosing a JBL®GTi Series subwoofer.
GTi 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 cgeneral sense, they don’t show the specifi
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.
GTi SERIES
W10GTi MkII
W12GTi MkII
W15GTi MkII
automotive
subwoofer
owner’s manual
2
INSTALLATION WARNINGS AND TIPS
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.
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.
3
CHOOSING AN ENCLOSURE

Termékspecifikációk

Márka: JBL
Kategória: mélynyomó
Modell: W10GTi II

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