Rockford Fosgate RFP2408 Bedienungsanleitung

® ®

car audio

fanatics

for

punc

RFP2408/2808

RFP2410/2810

RFP2412/2812

RFP2415/2815

RFP2418/2818

Dear Customer,

Congratulationsonyourpurchaseoftheworld'sfinestbrandofcaraudiospeakers. At

Rockford Fosgate we are fanatics about musical reproduction at its best, and we are

pleasedyouchoseourproduct.Throughyearsofengineeringexpertise,handcraftsman-

ship and critical testing procedures, we have created a wide range of products that

reproduce music with all the clarity and richness you deserve.

For maximum performance we recommend you have your new Rockford Fosgate

product installed by an Authorized Rockford Fosgate Dealer, as we provide specialized

training through Rockford Technical Training Institute (RTTI). Please read your

warranty and retain your receipt and original carton for possible future use.

Greatproductandcompetentinstallationsare onlyapieceofthepuzzle whenitcomes

to your system. Make sure that your installer is using 100% authentic installation

accessories from Connecting Punch in your installation. Connecting Punch has

everything from RCA cables and speaker wire to Power line and battery connectors.

Insist on it! After all, your new system deserves nothing but the best.

To add the finishing touch to your new Rockford Fosgate image order your Rockford

wearables,which include everything from T-shirtsand jackets to hats andsunglasses.

TogetafreebrochureonRockfordFosgateproductsandRockfordwearables,intheU.S.

call 602-967-3565 or FAX 602-967-8132. For all other countries, call +001-602-

967-3565 or FAX +001-602-967-8132.

The serial number can be found on the outside of the box. Please record it in

the space provided below as your permanent record. This will serve as

verificationofyourfactorywarrantyandmaybecomeusefulinrecoveringyour

speaker if it is ever stolen.

Serial Number: ________________________________

Model Number:________________________________

If, after reading your manual, you still have questions regarding this product,

we recommend that you see your Rockford Fosgate dealer. If you need further

assistance, you can call us direct at 1-800-669-9899. Be sure to have your serial

number, model number and date of purchase available when you call.

PRACTICE SAFE SOUND™

CONTINUOUS EXPOSURE TO SOUND PRESSURE LEVELS OVER

100dBMAY CAUSE PERMANENT HEARING LOSS. HIGH

POWERED AUTOSOUND SYSTEMS MAY PRODUCE SOUND

PRESSURE LEVELS WELL OVER 130dB. USE COMMON SENSE

AND PRACTICE SAFE SOUND.

TABLE OF CONTENTS

Introduction .............................................................................................1

RF Punch XLC Woofer Contents...............................................................1

Technical Design Features .......................................................................1

Stamped Basket .................................................................................. 1

PVA Cone ..........................................................................................1

Inverted Dust Cap ..............................................................................1

Aluminum Voice Coil Former............................................................. 2

Progressive Dual Laminated Spider ....................................................2

Dual Laminated Foam Surrounds .......................................................2

Hyper-Extended Pole Piece ................................................................2

Vented Bumped Back Plate ................................................................2

Installation ...............................................................................................3

Recommended Enclosures.................................................................. 3

Building An Enclosure ........................................................................5

Calculating Volume............................................................................5

Subwoofer Crossovers ........................................................................ 5

Wiring Configurations ........................................................................ 6

Specifications........................................................................................... 7

Warranty Information............................................................................... 8

International Information..........................................................................9

Welcome to Rockford Fosgate! This manual is designed to provide

information for the owner, salesperson and installer. For those of you

who want quick information on how to install this product, please turn

tothe

InstallationSection

ofthismanualorrefertotheiconlistedbelow.

Other information can be located by using the Table of Contents. We,

at Rockford Fosgate, have worked very hard to make sure all the

information in this manual is current. But, as we are constantly finding

newways toimproveour product,thisinformation issubject to change

without notice.

GETTING STARTED

® ®

Sections marked

INSTALLATION

include “slam dunk”

assembly and wiring

directions

–1 –

INTRODUCTION

TheRFPunchXLCWoofersareafulllineoflowfrequencydriverssized

from8"to18"andareavailablein4or8ohmimpedance.TheRFPunch

XLCwoofersweredesignedforuseprimarilyinsmall,sealedorported

enclosures. By utilizing the latest materials and construction tech-

niques, we are able to offer a speaker with high output at low

frequencies while requiring a minimum of operating space.

RF PUNCH WOOFER CONTENTS

RF Punch XLC Woofer

Installation & Owner's Manual

4 Foam Gaskets

TECHNICAL DESIGN FEATURES

◆Stamped Basket

The RF Punch XLC Woofers use a stamped Cold Rolled Steel basket

which is rigid and lightweight. The basket is finished in a corrosive

resistant powder coated process used in many automotive

applications.

THE RESULT: A lightweight and rigid woofer

◆PVA Cone

The cone material used is spruce pulp paper. This provides the

necessary combination of weight and strength and allows high levels

of output without cone break up. The cone is treated with a water

resistantPolyVinyl Acetate(PVA) Emulsionwhich increasesthe cone

rigidity and lowers distortion.

THE RESULT: Increases cone rigidity and lowers distortion

◆Inverted Dust Cap

The use of the inverted dust cap serves to increase the cone rigidity

and improve the power handling by forcing more air through the

voice coil.

THE RESULT: Increases cone rigidity, smooths frequency response

andpreventsyourfriendsfromfeelingobligatedtoinvertthemforyou.

–2 –

◆Aluminum Voice Coil Former

Thevoicecoilformerisblack,anodizedaluminumforhighlyefficient

thermal transfer. This allows winding high temperature copper wire

in multiple layers for improved efficiency.

THERESULT:Improvespowerhandlingbyefficientlydissipatingheat

◆Flat Progressive Dual Laminated Spider

A flat progressive dual laminated spider is employed to provide

strongersuspensionfor thewoofer.Asecondaryspiderisfusedtothe

primary spider near the critical voice coil bonding point. The combi-

nation of these two spiders, in addition to the progressive rolls,

provides the ultimate in linear control for high excursion capability.

THE RESULT: Strengthenssuspensionfor higherexcursioncapability

◆Dual Laminated Foam Surrounds

The RF Punch XLC Woofers employ a dual laminated foam surround

for the front of the woofer's suspension. Dual lamination improves

reliability by making the woofer mechanically stronger.

THE RESULT: Adds mechanical strength

◆Hyper-Extended Pole Piece

The pole piece has been extended to provide a more linear magnetic

field for the operation of the woofer. This lowers distortion and

provides the woofer with better low frequency response.

THE RESULT: Lowers distortion and provides better low frequency

response

◆Vented Bumped Back Plate

The back plate has been stepped deeper to allow the woofer more

excursionwithoutbottomingout.Thisenablesthespeakertobeused

in a smaller enclosure. Additionally, the back plate is vented with a

radiused aerodynamic back vent which efficiently and quietly circu-

lates cool air around the voice coil.

THE RESULT: More excursion and increased power handling

–3 –

INSTALLATION

Recommended Enclosures

Punch 8"

Recommended Sealed .30ft3(8.50L)

Punch 10"

Recommended Sealed .75ft3(21.24L)

Punch 12"

Recommended Sealed 1.25ft3(35.40L)

® ®

Recommended Ported .625ft3(17.70L)

Fb = 40 Hz

Pd = 2.5" (6.35cm)

Pl = 11.25" (28.57cm)

Recommended Ported 1.0 ft3(28.32L)

Fb = 35 Hz

Pd = 3" (7.62cm)

Pl = 13.25" (33.65cm)

Recommended Ported 2.0 ft3(56.63L)

Fb=35 Hz

Pd=4" (10.16cm)

Pl=10.75" (27.30cm)

– 4 –

® ®

Recommended Sealed 4.0ft3(113.27L)

Punch 15"

Recommended Sealed 2.5ft3(70.79L)

Punch 18"

Recommended Enclosures

Fb = 35 Hz

Pd = 4" (10.16cm)

Pl = 8" (20.32cm)

Recommended Ported 2.5ft3(70.79L)

Recommended Ported 4.0ft3(113.27L)

Fb=30 Hz

Pd=2 x 4" (2 x 10.16cm)

Pl=14.5" (36.83cm)

Building an Enclosure

Toworkproperly,thewallsoftheenclosuremustberigidandnotflex

when subjected to the high pressures generated by the speaker's

operation. For optimum performance, we recommend using 3/4"

MDF (Medium Density Fiberboard) and internal bracing. The enclo-

sureshould begluedtogether andsecuredwith nailsorscrews. MDF

is porous; therefore, it is suggested to also seal the outside walls with

polyurethane.

Calculating Volume

Calculating volume is merely a matter of measuring the dimensions

in inches and using the formula:

1728"

Height x Width x Depth

Box Volume =

(cubic feet)

Iftwofacingsidesareofunevenlength,addthemtogetheranddivide

by two to take the average. Using this number will give you the

volume without the necessity of calculating the box in sections and

adding the sections together. The thickness of the baffle material

reduces the internal volume so this must be subtracted from the

outside dimensions to determine the internal volume. The speaker

itself also reduces the internal volume. The amount of air displaced

by each model is listed on the specification sheet and should also be

subtracted from the gross volume calculation.

Subwoofer Crossovers

There are two operational types of crossovers, passive and active.

Passivecrossovers(coilsorinductors)areplacedonthespeakerleads

between the amplifier and speaker. An active crossover is an elec-

tronic filter which separates the audio signal fed to different amplifi-

ers.

For optimum subwoofer performance, we recommend using an

active 80-100Hz low-pass crossover at 12dB/octave.

– 5 –

– 6 –

Wiring Configurations

Three configurations for connecting speakers to an amplifier

are Series, Parallel, and Series-Parallel wiring. A Series con-

figuration consists of two or more speakers wired in an string

(end to end). A Parallel configuration consists of two or more

speakers wired with the common terminals connected across

eachother.ASeries-Parallelconfigurationisacombinationof

both methods. Determine which method will be compatible

with your amplifier.

RT= R1+ R2+ R3+ etc. 1 1 1 1 1

=++++etc.

RTR1R2R3R4

Series Wiring Parallel Wiring

•RTindicates the total speaker load

•R1, R2, etc. indicates each speaker in the system

•Red dot indicates “+” terminal of

8 ohm

speaker

•Purple dot indicates “+” terminal of

4 ohm

speaker

Series-Parallel Wiring

® ®

Dieses Handbuch passt für folgende Modelle

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