Infinity Kappa Perfect 12 Manual

Infinity Subwoofer Kappa Perfect 12

Læs gratis den danske manual til Infinity Kappa Perfect 12 (4 sider) i kategorien Subwoofer. Denne vejledning er vurderet som hjælpsom af 14 personer og har en gennemsnitlig bedømmelse på 4.8 stjerner ud af 7.5 anmeldelser. Har du et spørgsmål om Infinity Kappa Perfect 12, eller vil du spørge andre brugere om produktet?

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Thank you for purchasing an Infinity Kappa Perfect subwoofer.

Kappa Perfect subwoofers are engineered for extreme power handling

in both sealed and vented boxes and constructed using state-of-the-art

materials for unequaled performance and longevity. To ensure maximum

subwoofer performance, we strongly recommend that installation be left to

a qualified professional. Although these instructions and the enclosed data

sheet explain how to install a Kappa Perfect subwoofer in a general sense,

they do not show box construction details and exact installation methods for

your particular vehicle. If you do not feel that you have the knowledge and

experience necessary, ask your authorized Infinity dealer about professional

installation options.

Remember to keep your sales receipt with this manual and design sheet in

a safe place so they are available for future reference.

A P PA

E R I E S

Separate Components Perfect10, Perfect12

I N S T R U C T I O N S

A FEW W A EORDS BOUT NCLOSURES

Your Kappa Perfect subwoofer requires an

enclosure to realize its full low-frequency

response. The speaker’s design is flexible enough

to produce exceptional results no matter whether

you specify a small sealed, vented or bandpass

enclosure. In vented and bandpass enclosures,

box size and port-tuning frequency will also help

dictate the low-frequency performance and output

capability of your system.

Your Kappa Perfect subwoofer will also work in

infinite-baffle applications where there is no space

or budget to build a box. Be aware that infinite-

baffle or “free air” mounting will reduce the

power handling of any subwoofer compared to

an application using an enclosure.

Finally, any deviation from recommended

enclosure volumes or port dimensions should be

made using dedicated enclosure-design software.

If this type of software is not available to you, ask

your authorized Infinity dealer for help.

Y C B ROUR AR AND ASS EPRODUCTION

Depending on the size of the vehicle’s interior

listening space, reproduced bass frequencies

below 80Hz are boosted by nearly 12dB per

octave in the car as frequency decreases. NOTE:

This effect, known as the vehicle’s “transfer func-

tion,” plays an important part in shaping the over-

all in-car response and is displayed graphically

along with freespace response on the enclosed

data sheet for your Kappa Perfect Subwoofer.

P LOWER-HANDLING IMITATIONS

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 or each type

of enclosure, power handling is different 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 larger than the compliance

(Vas) of the subwoofer, it will perform as if it were

in an infinite-baffle installation.

Vented and bandpass enclosures have the

lowest amount of excursion for the amount of

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

forcing 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 pro-

vide adequate woofer control when driven below

the port-tuning range, so proper design and a

subsonic filter are important. A vented bandpass

box will have the lowest overall cone excursion,

provided a subsonic filter is used.

4. Use PVC or ABS pipe for ports. Keep in mind

that the openings at either end of the port must

be at least one port diameter away from any

obstructions, including filling material inside the

box. Rectangular vents can be used as long as

the cross-section surface area matches the

recommended port-area values in the enclosed

data sheet.

5. When using vented boxes, we recommend

using a subsonic filter (like the DBO feature found

on Kappa power amplifiers) to limit the power

sent to the speaker at frequencies below the

enclosure’s port-tuning frequency, thus limiting

the speaker’s excursion.

Use the recommended box designs on the

enclosed data sheet. Choose cabinet dimensions

to fit your vehicle, but do not change the enclo-

sure’s volume. Doing so will change the tuning

frequency of the enclosure and may adversely

affect final performance. If you cannot perform

the necessary calculations yourself, please

contact your authorized Infinity dealer for help.

In addition, there are a number of points

you’ll want to keep in mind as you construct an

enclosure:

1. Use 3/4" (19mm) MDF (medium-density fiber-

board) or marine birch wood to build an enclo-

sure. Enclosures for 12" and larger subwoofers,

or small subwoofers driven by high-power

amplifiers, should be constructed using 1"

(25mm) material.

2. Seal all joints with glue and screws; do not use

nails. We recommend “deck”, “zip” or drywall

screws since they have coarse threads for better

grip and don’t require pre-drilling holes. Once the

box has been tested, seal all interior joints with

silicone caulk.

3. Depending on the application, fill the enclosure

according to the design you have chosen from the

enclosed data sheet in one of three ways: zero-

percent fill (i.e., no fill), 50-percent fill (i.e., 1"-thick

polyfill sheets on all inside walls except where

subwoofer is mounted), or 100-percent fill (i.e.,

entire box is stuffed with loosely packed polyester

fiberfill).

E CNCLOSURE ALCULATIONS AND UILDING OXESB B

Produkt Specifikationer

Mærke:	Infinity
Kategori:	Subwoofer
Model:	Kappa Perfect 12

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