JBL Decade DS120 Manual

JBL Subwoofer Decade DS120

Læs gratis den danske manual til JBL Decade DS120 (4 sider) i kategorien Subwoofer. Denne vejledning er vurderet som hjælpsom af 39 personer og har en gennemsnitlig bedømmelse på 4.4 stjerner ud af 20 anmeldelser. Har du et spørgsmål om JBL Decade DS120, eller vil du spørge andre brugere om produktet?

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Side 1/4

D E C A D E

™

D S 1 0 0 , D S 1 2 0

G E N U I N E J B L

A Few Words About Enclosures

Your Decade Series 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 enclo-

sure. 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 Decade Series 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 han-

dling 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, such as JBL

Speakershop™. If this type of software is

not available to you, look for assistance

on JBL’s Web site at www.jbl.com or from

your authorized JBL dealer.

Your Car and Bass Reproduction

Depending on the size of the vehicle’s

interior listening space, reproduced

frequencies below 80Hz are actually

boosted by nearly 12dB per octave as

frequency decreases. NOTE: This effect,

known as the vehicle’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 Decade Series subwoofer.

Enclosure Calculations and

Building Boxes

Use the recommended box designs on

the enclosed data sheet. Choose cabinet

dimensions to fit your vehicle, but do not

change the enclosure’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 JBL dealer for

help and for information about JBL

Speakershop, a dedicated enclosure-

design software program for experienced

car-audio enthusiasts.

In addition, there are a number of points

you’ll want to keep in mind as you con-

struct an enclosure:

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

fiberboard) or marine birch plywood to

build an enclosure. Enclosures for 12"

and larger subwoofers, or small sub-

woofers driven by high power ampli-

fiers, should be constructed using 1"

(25mm) material.

2. Seal all joints with glue and screws; do

not use nails. We recommend “deck” or

“zip” 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 poly-

ester fiberfill).

Thank you for choosing a JBL Decade™

Series subwoofer. Decade Series sub-

woofers are designed to suit a broad

range of mobile-audio applications and

can be used in a wide variety of enclo-

sure types to produce extended, powerful

bass in a limited amount of vehicle

space. To ensure maximum subwoofer

performance, we strongly recommend

that installation be left to a qualified pro-

fessional. Although these instructions

explain how to install a JBL Decade

Series subwoofer in a general sense, they

do not show box construction details and

exact installation methods for your partic-

ular vehicle. If you do not feel you have

experience, do not attempt the installa-

tion yourself, but instead ask your autho-

rized JBL dealer about professional

installation options.

Remember to keep your sales receipt

with this manual in a safe place so both

are available for future reference.

Produkt Specifikationer

Mærke:	JBL
Kategori:	Subwoofer
Model:	Decade DS120

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