Használati útmutató Infinity Reference 1260W

Infinity mélynyomó Reference 1260W

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Oldal 1/5

R E F E R E N C E

860w

1060w

1062w

1260w

1262w

ENGLISHDEUTSCHFRANÇAIS ESPAÑOL

NEDERLANDS

ITALIANOSVENSKDANSKSUOMI

PORTUGUÊS

POLSKI

Русский

R E F E R E N C E

THANK YOU

for choosing

an Infinity®Reference Series subwoofer.

Reference Series subwoofers are designed

to suit a broad range of car audio

applications and can be used in a wide

variety of enclosure types to produce

extended,powerful bass in a limited amount

of vehicle space.To ensure maximum

subwoofer performance, it is strongly

recommended that installation be left to

a qualified professional. Although these

instructions explain how to install a

Reference Series subwoofer in a general

sense, they do not show box-construction

details or exact installation methods for

your particular vehicle.If you do not feel

that you have the necessary experience,

do not attempt the installation yourself, but

instead ask your authorized Infinity dealer

about professional installation options.

Remember to keep your sales receipt with

this manual in a safe place so that both are

available for future reference.

WARNING

Playing loud music in an automobile can per-

manently damage your hearing, as well as

hinder your ability to hear traffic.The maxi-

mum volume levels achievable with Infinity

speakers,combined with high power amplifi-

cation, may exceed safe levels for extended

listening. Using low volume levels when dri-

ving is recommended. Infinity Systems

accepts no liability for hearing loss, bodily

injury or property damage as

a result of use or misuse of this product.

YOUR CAR

AND BASS

REPRODUCTION

Depending on the size of the vehicle’s

interior listening space,reproduced bass fre-

quencies below 80Hz are boosted by nearly

12dB per octave as frequency decreases in

the car. NOTE:This effect, known as the vehi-

cle’s transfer function, plays an important

part in shaping the

overall in-car response and is displayed

graphically, along with freespace response,

on the enclosed data sheet for your

Reference subwoofer.

CHOOSING AN

ENCLOSURE

Reference Series subwoofers are optimized

to perform best in small sealed,vented and

prefabricated band-pass enclosures.While

infinite-baffle mounting of Reference Series

subs is possible, power handling will be

greatly compromised because there’s no

enclosed volume of air to prevent the speak-

er’s cone from moving past its limit. For this

reason, infinite-baffle mounting

is not recommended for Reference 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.

Optimum sealed enclosures are 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 vent-

ed enclosure, it is strongly recom-mended

that you have your authorized Infinity 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.

ENGLISH

Band-pass enclosures often provide the most

output available from any amplifier and sub-

woofer combination at the expense

of sonic accuracy. If sheer SPL (sound-

pressure level) is what you desire most,

choose a band-pass enclosure. Band-pass-

enclosure design is very tricky, and the

aid of a computer and enclosure design soft-

ware is necessary. If you are an

experienced installer or have some wood-

working experience, you may wish to build

the enclosure described in the enclosure

design sheet included with this woofer.

Fortunately, there are many prefabricated

band-pass boxes available and they are

all optimized to extract the most output pos-

sible from any woofer. Band-pass

enclosures can be quite large and may

require a lot of space inside your vehicle.

POWER HANDLING

LIMITATIONS

The power handling capability of any woofer

is related to both its ability to dissipate heat

and the maximum excursion limits of its

cone. Once the speaker’s voice coil moves

outside the magnetic gap, power can no

longer be converted into motion, and all the

amplifier’s power is converted into heat in

the voice coil.This voice coil heating is the

largest detriment to speaker longevity, so

overexcursion should be avoided. Since

speaker-cone excursion is different for each

type of enclosure, power handling is differ-

ent for each enclosure.

Sealed enclosures exert the most control

over the motion of a subwoofer because the

air inside the box acts like a spring against

the motion of the woofer cone. Larger boxes

allow for more excursion, thus providing

more low-frequency output for the amount

of power used.When placed in a sealed box

much larger than the Vas of the subwoofer, it

will perform as if it were in an infinite-baf-

fle installation.

Vented and band-pass enclosures have the

lowest amount of excursion for the amount

of sound output.This is a result of port out-

put reinforcing the sound output from the

woofer. The mass of the air contained in the

port provides an acoustic load on the

woofer’s cone at the tuning frequency, and

this added mass decreases woofer-cone

excursion.Vented boxes do not provide

adequate woofer control when driven below

the tuned frequency (Fb), so proper design is

important.A vented band-pass box will have

the lowest overall cone excursion,

provided a subsonic filter is used.

• Voice coil overheating and burning due to

overexcursion are often caused by over-

driving an amplifier into “clipping.”A

severely clipped signal, or square wave,

contains nearly twice the power of a clean

sine wave at the same level. Bass that

sounds broken up and distorted at higher

volumes is usually indicative of an

amplifier that is clipping and being asked

to deliver power beyond its ability.

• Infinite-baffle or “free air” mounting

applications allow for greater cone

excursion than subwoofers mounted in

an enclosure. In order to compensate,

the power handling of the subwoofer

will likely be half its rated power in this

application.

• Study the excursion curves on the enclosed

Reference Series data sheet

and note the differences for different

enclosure applications.The type and

size of box used will produce different

excursion demands on the enclosed

subwoofer and, consequently, different lev-

els of power handling.As long as the rec-

ommended enclosure parameters are used,

the subwoofer will perform properly in its

enclosed environment. However, any

design deviation may result in less than

optimum performance,and may also

subject the subwoofer to overexcursion

(i.e., the voice coil leaving the gap),which

can eventually damage the speaker. For

additional help with this issue, please

contact your authorized Infinity dealer.

Termékspecifikációk

Márka:	Infinity
Kategória:	mélynyomó
Modell:	Reference 1260W

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