Rockford Fosgate S1-408 Bedienungsanleitung

OWNER'SMANUAL



Series 1

WOOFERS

S1-408 S1-808

S1-410 S1-810

S1-412 S1-812

S1-415 S1-815

Dear Customer,

Congratulations on your purchase of America’s finest brand of car audio compo-

nents. At Rockford Fosgate we are committed to musical reproduction at its best,

andwearepleasedyouchoseourproduct. Throughyearsofengineeringexpertise,

hand craftsmanship 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

specializedtrainingthroughRockfordTechnicalTrainingInstitute(RTTI). Please

read your warranty and retain your receipt and original carton for possible future

use.

ToaddthefinishingtouchtoyournewRockfordFosgateimageorderyourRockford

accessories, which include everything from T-shirts and jackets to hats and

sunglasses.

To get a free brochure on Rockford Fosgate products and Rockford accessories,

pleasecall1-800-669-9899orFAX1-800-398-3985intheU.S.ForCanada,call

KorbonTradingat905-567-1920.ForinternationalordersFAX001-1-602-967-

8132 or call 001-1-602-967-3565.

PRACTICE SAFE SOUND™

CONTINUOUS EXPOSURE TO SOUND PRESSURE LEVELS OVER 100dB

MAY CAUSE PERMANENT HEARING LOSS. HIGH POWERED AUTO

SOUNDSYSTEMSMAYPRODUCESOUNDPRESSURELEVELSWELLOVER

130dB. USE COMMON SENSE AND PRACTICE SAFE SOUND.

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

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

further assistance, you can call us direct at 1-800-795-2385. Be sure to have

your serial number, model number and date of purchase available when

you call.

The serial number can be found on the outside of the box. Please be sure

torecorditinthespaceprovidedbelowasyourpermanentrecord. Thiswill

become useful in recovering your product if ever stolen and serve as

verification of your factory warranty.

Serial Number: _________________________________________

Model Number:___________________________________

TABLE OF CONTENTS

Series 1 Woofer Contents ..................................................................1

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

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

Voice Coil ...................................................................................1

Vented Pole Piece .......................................................................1

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

Suspension ..................................................................................2

Dual Input Terminals...................................................................2

Low Frequency Speaker Systems .......................................................2

Using the Series 1 Woofer.................................................................2

Calculating Load Impedance.............................................................3

Calculating Volume ..........................................................................3

Building An Enclosure.......................................................................4

Specifications....................................................................................5

Warranty Information........................................................................6

SERIES 1 WOOFER CONTENTS

Series 1 Woofer

Owner's Manual

This manual contains information on the construction, installation

andoperationoftheSeries1lowfrequencyspeakers.Werecommend

you keep this manual for future reference.

The Series 1 Woofers are a full line of low frequency drivers ranging

insizefrom8"to 15" indiameter. System compatibilityis ensured by

offeringeachsizeatfourandeightohmimpedance.Designedtooffer

Rockford Fosgate quality in an affordable speaker, the Series 1

Woofers offer the beginning car stereo enthusiast an opportunity to

enjoy solid low frequency music reproduction. Our engineers have

selected materials and techniques used in building our speakers

whichofferperformanceandreliabilitycomparabletootherspeakers

selling for much more.

INTRODUCTION

DESIGN FEATURES

Thefollowingsectiondescribesthemethodsusedinconstructingthe

Series 1 Woofers and how each was optimized.

Black Anodized Aluminum Voice Coil Former – To improve the

reliability of the voice coil, it is wound on a black, anodized

aluminumformer.Becausealuminumisanefficientthermalconduc-

tor, it keeps heat from concentrating in the voice coil during normal

use.

Vented Pole Piece – To allow operation at reasonably high power

levels,ventilation isneeded. Thisis donethrough theuse ofa vented

pole piece. The venting allows fresh air to circulate and remove the

built up heat form the voice coil assembly.

PVA Treated Paper Cone – The cone is constructed from a light-

weight, rigid paper material. The cone is treated with Polyvinyl

Acetatewhichlowerstheresonanceandreducesdistortion.ThePVA

also reduces damage from the harsh environmental conditions typi-

cal of a car interior.

Suspension – The suspension of a speaker is the part of the speaker

which controls the motion of the cone. This is what changes the

electrical energy to sound energy. The surround is constructed from

aduallaminatedfoamwhichensureslinearmotionoftheconewhile

resisting mechanical and environmental damage.

Dual Input Terminals – To facilitate hook-up in multiple driver

configurations,eachpositiveandnegativeterminalhastwoconnect-

ing lugs. The positive terminal is identified by a dot which also

indicatesthespeaker'simpedance.Areddotisusedona8Ωspeaker,

a violet dot on a 4Ωspeaker.

LOW FREQUENCY SPEAKER SYSTEMS

The Series 1 Woofers require an enclosure to achieve optimum

results.Theenclosureallowsthespeakertooperateatlowerfrequen-

cies with improved power handling. The two most commonly used

types of low frequency speaker systems are acoustic suspension and

bassreflex.Theacousticsuspensionenclosure,commonlyreferredto

as a sealed box, relies upon the changing air pressure in a tightly

sealed chamber of its operation. The bass reflex, commonly referred

toasaportedenclosure,usesaventinsertedintotheboxwhichtakes

overforthespeakeratadesiredfrequencywhichisdeterminedbythe

internal volume of the enclosure and the size of the vent used. The

Series 1 Woofer will yield optimum performance in a ported enclo-

sure.

USING THE SERIES 1 WOOFERS

Speakers are built in different sizes to optimize their performance in

different frequency bands. Crossovers are used to route the different

frequency bands for each appropriate speaker. There are two opera-

tionaltypesofcrossover:activeandpassive.Anactivecrossoverisan

electronicfilterwhichisplacedbeforetheamplifierandseparatesthe

signal fed to different amplifiers in the system. A passive crossover is

positioned after the amplifier and separates the signal fed to each

speaker in the system. Active crossovers offer the accuracy and

flexibilityneededforasophisticated systemandare usedincomplex

multiple amp designs. Passive crossovers (capacitors and inductors)

allowtheuseofmultiplespeakersinasimplesystemwhichcaneasily

be expanded over time. We recommend using a 6dB per octave,

100Hz low-pass crossover for the Series 1 Woofers when used with

a passive system.

To customize the installation, try adjusting the crossover point one

octave up or down to optimize the system staging.

CALCULATING LOAD IMPEDANCE

TheSeries1 Woofersareusedfor thesub-bassregion,those frequen-

cies below 100Hz. This is the foundation for the music and the

frequency range you feel. Before selecting the passive crossover, it is

necessary to calculate the load impedance of the speaker system. In

a series circuit the impedance is determined by the formula:

RT= R1+ R2+ R3…

In a parallel circuit the impedance is determined by the formula:

RTR1+R2+ R3…

Where RTis the total speaker load and R1, R2, etc. represent each

speaker in the system.

The crossover is connected in line to the positive terminal of the

speaker system. The crossovers are available from Authorized Rock-

ford Fosgate Dealers.

1 1 1 1

CALCULATING VOLUME

Calculating volume is merely a matter of measuring the dimensions

in inches and using the formula: Volume = Height x Width x Depth.

Theresult isin cubicinches. Convertthis to cubicfeet bydividing by

1,728(thenumberof cubicinchesinacubicfoot).Iftwofacing sides

are of uneven length, add them together and divide by two to get 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 determines 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 calcula-

tion.

BUILDING ANENCLOSURE

Toworkproperly,thewallsoftheenclosuremustberigidandnotflex

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

operation. We recommend using 3/4" thick high density particle

board or medium density fiberboard (MDF), which are available at

most building supply stores. For a large box, internal bracing is

needed for reinforcement. The joints should be glued, using non-

flammable carpenter's glue, and secured with either nails or screws.

Internally the joints should be sealed with silicon to prevent air from

leaking.BecausethehighdensityparticleboardandMDFareporous

materials, it is suggested to seal the outside enclosure walls with

polyurethane.Ideally, theportshould belocated onthe samefaceas

the speaker and positioned at least one port diameter away from the

side and back walls.

In Conclusion

Special carehas been takento ensureyour satisfaction withthe Series 1

Woofers. The materials and workmanship have been carefully se-

lected to guarantee performance equal to the needs of the most

demandingconditions.Ifyouhaveanyfurtherquestionsoradvanced

system needs, your Authorized Rockford Fosgate Dealer will be

happy to assist you.

Model S1-408 S1-808 S1-410 S1-810 S1-412 S1-812 S1-415 S1-815

Nom. Impedance 48 4 848 48

FS (Hz) 40 42 36 38 28 29 26 27

RE (Ohm) 3.5 6.9 3.4 6.8 3.4 6.7 3.4 6.7

LE (mH) 1.49 2.40 1.47 2.25 1.43 2.22 1.71 2.87

QMS 4.02 2.90 3.75 3.81 3.41 4.11 4.89 3.90

QES 0.35 0.37 0.40 0.42 0.36 0.45 0.49 0.59

QTS 0.32 0.33 0.36 0.38 0.33 0.41 0.44 0.51

VAS (cu.ft) 1.06 1.06 2.40 2.40 6.57 6.57 11.336 11.336

VAS (liter) 30 30 68 68 186 186 321 321

Power (Watts RMS) 100 100 100 100 100 100 150 150

Power (Watts Peak) 200 200 200 200 200 200 300 300

SPL (dB @ 1w/1m) 89 89 91 91 92 92 93 93

X-MAX (inches) 0.19 0.19 0.20 0.20 0.20 0.20 0.23 0.23

X-MAX (mm) 4.7 4.7 5.2 5.2 5.1 5.1 5.9 5.9

Rec. Tuning Frequency 40Hz 40Hz 35Hz 35Hz 35Hz 35Hz 35Hz 35Hz

Port Diameter (in.) 22 3 344 44

Port Length (in.) 3-3/4 3-3/4 8 8 10-3/4 10-3/4 4 4

Rec. Box Vol. (cu. ft.) 1 1 1.5 1.5 2 2 4 4

Spk. Dis. Outside (cu. ft.) 0.03 0.03 0.04 0.04 0.05 0.05 0.107 0.107

Spk. Dis. Inside (cu. ft.) 0.04 0.04 0.06 0.06 0.08 0.08 0.145 01.45

Mntg. Dia. (in.) 7-1/8 7-1/8 9-1/4 9-1/4 11 11 14 14

Mntg. Depth (in.) 3-2/3 3-2/3 3-29/32 3-29/32 4-4/5 4-4/5 6-3/32 6-3/32

SPECIFICATIONS

Rockford Fosgate warrants all loudspeakers to the original purchaser for a period

of two (2) years parts and labor, providing the product was purchased from an

Authorized Rockford Fosgate Dealer. Speakers found to be defective during the

warranty period will be repaired or replaced (with a product deemed to be

equivalent) at Rockford Fosgate’s discretion.

Repaired or replaced speakers will

cover the balance of the original warranty period only.

Warranty applies onlyto

original purchaser and is non-transferable. Warranty does not cover abuse or

installation error. If a determination is made that the product has been abused or

is out of the warranty period, it will be repaired, exchanged, and billed. Parts not

coveredunderwarrantywillberepairedorreplacedandbilled.Forspeakerboxes,

please return the speaker only. Serial number must be intact to obtain warranty.

Speakers must be returned prepaid to Grand Rapids, Michigan.

GENERAL

Electronicsandspeakerwarrantiesdonotcoveranyappearanceitem,anycostor

expenserelatedtotheremovalorreinstallationoftheproduct,anyaccessoryused

inconjunction with the product,damage to the productresulting from alteration,

accident,misuse or abuse, orimproper installation. This warrantydoesnot apply

ifthepartsorlabor,whichwouldotherwisebeprovidedwithoutchargeunderthis

warranty, are obtained from any source other than Rockford Fosgate or an

Authorized Rockford Fosgate Service Center.

The warranty is the only express warranty and does not create any implied

warranties. Rockford Fosgate limits its obligations under any implied warranties

understatelawstoaperiodnottoexceedthewrittenwarrantyperiod.Somestates

do not allow limitation on how long an implied warranty lasts, so the above

limitationmaynotapply.ThiswarrantyappliesonlytoproductssoldintheUnited

States of America or its possessions. For warranty outside the U.S.A., please

contact the nearest Authorized Rockford Fosgate Dealer. This warranty gives the

consumerspecificlegalrights,andtheconsumermayhaveotherrightswhichvary

from state to state.

Adefective product must beshipped prepaid to theAuthorized Rockford Fosgate

Dealer from which the consumer purchased the product or to the address below,

in the original factory carton or equivalent. Any shipping loss or damage will be

borne by the consumer or the consumer’s shipper. A consumer returning a

product to the factory should call (800) 669-9899 for a Return Authorization

Number. All shipments shall be clearly marked with the Return Authorization

Number on the outside of the shipping carton.

Rockford Corporation

609 Myrtle N.W.

Grand Rapids, MI 49504 (Receiving-speakers)

WARRANTY INFORMATION

NOTES

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