Rockford Fosgate Punch HE RFP3412 Installation & Operation Manual

Marca: Rockford Fosgate

Modello: Punch HE RFP3412

Tipo: Installation & Operation Manual

Questo manuale è adatto anche per

RFP3408/3808

RFP3410/3810

RFP3412/3812

RFP3415/3815

Installation

& Operation

Páginas de Referencia para la Instalación

Schéma d’Installation

Installations Beiblatt

Istruzioni di Installation

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 assis-

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

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

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 verification of

your factory warranty and may become useful in recovering your speaker if it is ever

stolen.

Serial Number: __________________________________

Model Number:__________________________________

– i –

Sections marked

TROUBLESHOOTING

include recommendations for

curing installation problems

Sections marked

INSTALLATION

include “slam dunk”

wiring connections

Welcome to Rockford Fosgate! This manual is designed to provide informa-

tion for the owner, salesperson and installer. For those of you who want

quick information on how to install this product, please turn to the

Installation Section of this manual or refer to the icons listed below. 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 new ways to improve

our product, this information is subject to change without notice.

GETTING STARTED

+ -

TROUBLE-

Visit our website for the latest information on all Rockford products.

Dear Customer,

ongratulations on your purchase of the world's finest brand of car audio

speakers. At Rockford Fosgate we are fanatics about musical reproduction

at its best, and we are pleased you chose our product. Through years of en-

gineering expertise, 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 specialized training through Rockford Technical Training Institute

(RTTI). Please read your warranty and retain your receipt and original car-

ton for possible future use.

Great product and competent installations are only a piece of the puzzle

when it comes to your system. Make sure that your installer is using 100%

authentic installation accessories from Connecting Punch in your installa-

tion. 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-shirts and jackets to

hats and sunglasses.

To get a free brochure on Rockford Fosgate products and Rockford wear-

ables, in the U.S. call 480-967-3565 or FAX 480-967-8132. For all other

countries, call +001-480-967-3565 or FAX +001-480-967-8132.

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

– ii –

iii

Specifications

RFP3408 RFP3808 RFP3410 RFP3810 RFP3412 RFP3812 RFP3415 RFP3815

Fs (Hz) 41 40 32 34 28 29 24 23

Re (Ohms) 3.88 7.73 3.73 7.42 3.69 7.37 3.69 7.46

Le (mH) 3.63 6.14 4.42 7.38 4.48 7.48 4.64 7.53

Qts 0.478 0.529 0.447 0.507 0.472 0.533 0.537 0.554

Qes 0.517 0.588 0.481 0.554 0.510 0.584 0.581 0.608

Qms 6.234 5.273 6.255 5.919 6.237 6.085 7.215 6.190

Vas (Liters) 14.0 15.4 31.5 31.1 86.4 86.3 199.2 244.3

Vas (cuft) 0.49 0.54 1.11 1.10 3.05 3.05 7.04 8.63

SPL (db M/W) 84.9 84.4 85.4 85.7 87.6 87.6 89.1 89.1

XMAX (in) 0.31 0.31 0.51 0.51 0.51 0.51 0.51 0.51

XMAX (mm) 8 8 13 13 13 13 13 13

Power handling (RMS) 200 200 200 200 200 200 200 200

Power handling (Peak) 400 400 400 400 400 400 400 400

Speaker displacement 0.035 0.035 0.06 0.06 0.085 0.085 0.135 0.135

Sealed Box (cu. ft.) 0.3 0.3 0.75 0.75 1.25 1.25 2.5 2.5

Ported box (cu. ft.) 0.6250.62511222.52.5

Mounting diameter (in) 7-1/16 7-1/16 9-5/16 9-5/16 11-1/8 11-1/8 13-7/8 13-7/8

Mounting diameter (mm) 179 179 237 237 283 283 352 352

Mounting depth (in.) 3-13/16 3-13/16 5-3/8 5-3/8 5-13/16 5-13/16 7-3/16 7-3/16

Mountin

depth

(

)

97 97 137 137 148 148 183 183

Table of Contents

Specifications........................................................................................................iii

Introduction ..........................................................................................................2

RF Punch HE Woofer Contents ..............................................................................2

Recommended Enclosures ....................................................................................2

Installation ............................................................................................................4

Recommended Enclosures ..............................................................................4

Building An Enclosure ....................................................................................6

Calculating Volume ........................................................................................6

Subwoofer Crossovers......................................................................................6

Wiring Configurations......................................................................................7

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

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

Introduction

The RF Punch HE Woofers are a full line of low frequency drivers sized

from 8" to 15" and are available in 4 or 8 ohm impedance. The RF Punch

HE woofers were designed for use primarily in small, sealed or ported

enclosures. By utilizing the latest materials and construction techniques,

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 HE Woofer

Installation & Owner's Manual

Recommended Enclosures

This manual outlines 2 specific types of enclosures that provide distinctly

different performance. This section is to help you decide which type is best

for your application.

Sealed

Sealed enclosures are the simplest to build. The most important part of

building a sealed enclosure is to make sure that the enclosure is airtight.

Using glue and some type of sealant on all seams will ensure solid con-

struction and prevent air leaks. The box volume will directly impact the

performance of the speaker. Larger enclosure will provide flatter response

and deeper bass where smaller boxes will provide a bump in the response

curve and generally higher output for greater SPL.

Advantages of sealed enclosures

•Small enclosures

•Linear (Flat) response

•No port noise

•High power handling at all frequencies

•Excellent for sound quality

+ -

Recommended Enclosures

Vented Enclosures:

Vented enclosures vary only from the sealed enclosures in that a vent or

port is added to “tune” the enclosure. The enclosures recommended are

designed for great overall performance. Larger boxes tend to be easy to

tune to lower frequencies while medium and small boxes are easier to tune

to higher frequencies. The vented design is less linear in response than the

sealed box with noticeably more output at the tuning frequenc

Advantages of vented enclosures

•Higher average output than sealed

•Tuning frequency can be easily adjusted by changing port length

•Deep bass response with lower power requirements

•Great for high output with limited power

+ -

Recommended Enclosures

Punch 8"

Recommended Sealed .30ft

(8.50L)

D = 8"

(20.32cm)

H = 11"

(27.94cm)

W = 11"

(27.94cm)

Punch 10"

Recommended Sealed .75ft

(21.24L)

D = 10"

(25.40cm)

H = 14"

(35.56cm)

W = 15"

(38.10cm)

Punch 12"

Recommended Sealed 1.25ft

(35.40L)

D = 12"

(30.48cm)

H = 14"

(35.56cm)

W = 19-3/4"

(50.17cm)

D = 8"

(20.32cm)

H = 11"

(27.94cm)

W = 19.75"

(50.16cm)

Range in Cubic Feet

1 2 3 4 5 6

.50

.625

0.3

D = 13.5"

(34.29cm)

H = 13"

(33.02cm)

W = 15"

(38.1cm)

Range in Cubic Feet

1 2 3 4 5 6

0.3

.75

D = 14"

(35.56cm)

H = 18"

(45.72cm)

W = 20.5"

(52.07cm)

Range in Cubic Feet

1 2 3 4 5 6

0.3

1.50

Range in Cubic Feet

1 2 3 4 5 6

0.3

.50

1.50

Range in Cubic Feet

1 2 3 4 5 6

0.3

.625

1.50

.75

Range in Cubic Feet

1 2 3 4 5 6

0.3

1.25

1.75

Recommended Ported .625ft

(17.70L)

Recommended Ported 1.0 ft

(28.32L)

Recommended Ported 2.0 ft

(56.63L)

Fb = 40 Hz

Pd = 2.5" (6.35cm)

Pl = 11.25" (28.57cm)

Fb = 35 Hz

Pd = 3" (7.62cm)

Pl = 13.25" (33.65cm)

Fb=35 Hz

Pd=4" (10.16cm)

Pl=10.75" (27.30cm)

Installation

+ -

Punch 15"

Recommended Sealed 2.5ft

(70.79L)

D = 12"

(30.48cm)

H = 20"

(50.80cm)

W = 25"

(63.50cm)

Range in Cubic Feet

1 2 3 4 5 6

0.3

1.75

2.50

D = 12"

(44.45cm)

H = 20"

(43.18cm)

W = 25"

(48.26cm)

Range in Cubic Feet

1 2 3 4 5 6

0.3

Recommended Enclosures

Recommended Ported 2.5ft

(70.79L)

Fb = 35 Hz

Pd = 4" (10.16cm)

Pl = 8" (20.32cm)

Recommended Enclosures

+ -

Building an Enclosure

To work properly, the walls of the enclosure must be rigid and not flex

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 enclosure should be glued

together and secured with nails or screws. 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"/(cu in/cu ft)

Height” x Width” x Depth”

Box Volume=

(cubic feet)

If two facing sides are of uneven length, add them together and divide by

two to take the average. Using this number will give you the volume with-

out 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. Passive

crossovers (coils or inductors) are placed on the speaker leads between the

amplifier and speaker. An active crossover is an electronic filter which sep-

arates the audio signal fed to different amplifiers.

For optimum subwoofer

performance, we recommend using an active 80-100Hz low-pass

crossover at 12dB/octave.

Wiring Configurations

Three configurations for connecting speakers to an amplifier are Series,

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

nected across each other. A Series-Parallel configuration is a combination

of both methods. Determine which method will be compatible with your

amplifier.

11111

=++++ etc.

Series Wiring

Parallel Wiring

+ –

4Ω

+ –

• R

indicates the total speaker load

•

, R

, etc. indicates each speaker in the system

Series-Parallel Wiring

+ -

4Ω load 4Ω load

+ – + –

+ –

8Ω load

8Ω load 8Ω load

+ – + –

+ –

4Ω load

Limited Warranty Information

Rockford Corporation offers a limited warranty on Rockford Fosgate products on the following terms:

• Length of Warranty

1 year on speakers 30 days on speaker B-stock (receipt required)

3 years on electronics 90 days on electronic B-stock (receipt required)

2 years on source units

•

What is Covered

This warranty applies only to Rockford Fosgate products sold to consumers by Authorized Rockford

Fosgate Dealers in the United States of America or its possessions. Product purchased by consumers

from an Authorized Rockford Fosgate Dealer in another country are covered only by that country’s

Distributor and not by Rockford Corporation.

• Who is Covered

This warranty covers only the original purchaser of Rockford product purchased from an Authorized

Rockford Fosgate Dealer in the United States. In order to receive service, the purchaser must provide

Rockford with a copy of the receipt stating the customer name, dealer name, product purchased and

date of purchase.

• Products found to be defective during the warranty period will be repaired or replaced (with a prod-

uct deemed to be equivalent) at Rockford's discretion.

• What is Not Covered

1. Damage caused by accident, abuse, improper operations, water, theft

2. Any cost or expense related to the removal or reinstallation of product

3. Service performed by anyone other than Rockford or an Authorized Rockford Fosgate Service Center

4. Any product which has had the serial number defaced, altered, or removed

5. Subsequent damage to other components

6. Any product purchased outside the U.S.

7. Any product not purchased from an Authorized Rockford Fosgate Dealer

• Limit on Implied Warranties

Any implied warranties including warranties of fitness for use and merchantability are limited in dura-

tion to the period of the express warranty set forth above. Some states do not allow limitations on the

length of an implied warranty, so this limitation may not apply. No person is authorized to assume for

Rockford Fosgate any other liability in connection with the sale of the product.

• How to Obtain Service

Please call 1-800-669-9899 for Rockford Customer Service. You must obtain an RA# (Return

Authorization number) to return any product to Rockford Fosgate. You are responsible for shipment of

product to Rockford.

Ship to:

Speakers

Rockford Acoustic Design

(Receiving-speakers)

609 Myrtle N.W.

Grand Rapids, MI 49504

RA#:_________________

Ship to:

Electronics

Rockford Corporation

Warranty Repair Department

2055 E. 5th Street

Tempe, AZ 85281

RA#:_________________

LEA DETENIDAMENTE LAS SIGUIENTES INSTRUCCIONES DE INSTA-

LACÍON DEL PRODUCTO.

Los terminales positivo y negativo de entrada están ubicados uno en cada

extremo de la carcasa. Este montaje separado previene de posibles corto-

circuitos de la señal a altos niveles de volumen. El terminal positivo está

marcado con un punto en la carcasa. Un punto rojo indica que la imped-

ancia del altavoz es de 8 ohmios, y un punto violeta que es de 4 ohmios.

Introduccíon

Los woofers RF Punch HE son una gama completa de drivers de baja fre-

cuéncia que comprenden diámetros de 8" a 15". Los Woofers RF Punch HE

fueron diseñados para su utilización en caja cerrada o bass-reflex mediana.

Diseñada para ofrecer la máxima calidad, los Woofers RF ofrecen al entu-

siasta principiante en sistemas de car audio, la oportunidad para disfrutar

de un bajo sólido en las bajas frecuéncias. Nuestros ingenieros han selec-

cionado materiales y técnicas para la construcción de nuestros altavoces

con el objetivo de ofrecer características y confianza comparable a otros

altavoces vendidos much más caros.

Terminales De Entrada

ESPAÑOL

Calculo Del Volumen

Para calcular el volumen sólo se han de medir las dimensiones en cen-

timetros y aplicar la fórmula:

Volumen du

la caja =

Si dos caras opuestas son de diferente tamaño, súmelas y divida el total por

dos para obtener el promedio. Usando esta técnica se ahorrara el cálculo

por secciones. El espesor del material con que está construida la caja

reduce el volumen interno, de manera quer ha de restarse de las dimen-

siones exteriores para determinar el volumen interior. La cantidad de aire

que ocupa cada modelo viene especificado en la hoja de caracteristicas y

también debe sustraerse para obtener el volumen neto interior.

1000cc

/litros

Alto (cm) x Ancho (cm) x Profundidad (cm)

(en litros)

Para un buen funcionamiento las paredes del recinto han de ser rigidas y

sin flexión a altas presiones de aire. Recomendamos usar un espesor de 1.9

cm de conglomerado de alta densidad o fibra de media densidad. Si el

recinto es muy grande es necessario reforzarlo internamente. Las juntas

deben ser encoladas y aseguradas con tornillos o grapas. Internamente las

juntas deben ser selladas con silicona para prevenir las fugas de aire. La

cola para madera es la mejor opción. Debido a la porosidad del conglom-

erado de alta densidad y la fibra es recomendable sellar exteriormente la

caja con poliuretano.

Construccion De Un Recinto

ESPAÑOL

VEUILLEZ LIRE LES INSTRUCTIONS SUIVANTES POUR L'INSTALLA-

TION DE CE PRODUIT.

Les bornes positives et négatives sont fixées de part et d'autre du saladier.

Cette séparation permet d'empêcher les courts-circuits entre les fils lors des

reproductions sonores élevées. La borne positive est repérée par un petit

point de couleur sur le saladier. Un point rouge est utilisé pour les haut-

parleurs de 8Ω, un point violet pour les haut-parleurs de 4Ω.

Introduction

Les woofers RF Punch HE sont une gamme complète de haut-parleurs de

graves allant de 20 à 46 cm et disponibles en 4Ω ou 8Ω.

Les woofer RF

Punch HE ont été conçus pour être utilisé de préférence en enceintes clos-

es.

En utilisant les techniques et les matériaux de construction les plus récents,

nous sommes parvenus à construire un haut-parleur fournissant un rende-

ment élevé dans les graves tout en requérant un volume opérationnel min-

imum.

BORNIERS

FRANÇAIS

Calcul Du Volume

On calcule le volume en mesurant la dimension de chaque côté et en util-

isant la formule suivante:

Volume du

caisson =

(Litres)

Si les due côtés qui se font face n'ont pas la même longueur, additionnez

les et divisez le résultat par deux pour obtenir la moyenne des deux

longueurs. Utilisez le nombre ainsi obtenu dans la formule pour détermin-

er le litrage. Cette méthode permet d'obtenir le volume du caisson sans

devoir faire de calculs compliqués de section de volume. L'épaisseur du

matériau dont est fait le caisson réduit le volume interne de celui-ci.

Lorsqu'on mesure les côtés du caisson il ne faut donc pas oublier d'oter des

mesures l'epaisseur du matériau. Le haut-parleur lui-même diminue le vol-

ume interne du caisson. Le volume d'air déplacé par chaque modèle de

haut-parleur est repris dans les spécifications techniques et doit également

être soustrait du volume total.

1000cc

/litres

Hauteur (cm) x Longueur (cm) x Largeur

(cm)

Pour fonctionner convenablement les parois du caisson doivent être rigides

lorsqu'elles sont soumises aux hautes pressions dues au fonctionnement du

haut-parleur. Nous vous recommandons d'utiliser des panneaux de bois

aggloméré à haute ou moyenne densité de particules de type “MDF”. Ces

panneaux sont disponibles dans la plupart des magasins de bricolage. Pour

un caisson de grand volume il est recommandé de placer des renforts à l'in-

térieur du caisson. Les différents côtés devront être collés (colle à bois) et

vissés (ou éventuellement cloués). Il est recommandé de mettre un joint de

silicone dans les arêtes internes du caisson afin d'éviter les fuites d'air. Du

fait de la porosité des matériaux que nous vous conseillons il est préférable

de recouvrir l'extérieur du caisson avec du polyuréthane.

Construire Un Caisson

FRANÇAIS

Anschlubterminals

BITTE LESEN SIE DIESE GEBRAUCHSANLEITUNG ZUERST SORGFÄLTIG

DURCH. DAS KANN SIE VOR FALSCHEM EINSATZ, AUSFALLEN ODER

SOGAR BESCHÄDIGUNG DES PRODUKTES ODER IHRES FAHRZEUGES

SCHÜTZEN.

Einleitung

Die RF-Punch HE Woofer sind eine komplette Produktlinie von Tief-

Frequenzlautsprechern mit Durchmesser von 20 cm bis zu 46 cm,

erhältlich in der Impendanz 4 - und 8 Ohm (Die RF Punch HE Woofer wur-

den vorwiegend fur den Einsatz in geschlossenen Gehäuse konstruiert).

Durch die Verwendung neuester Materialien und Produktionstechniken

können wir Ihnen heute einen Lautsprecher vorstellen, der hohe

Lautstärken und tiefe Frequenzen selbst in sehr kleinen Volumen repro-

duzieren kann.

Die Anschluβterminals wurden auf jeder Seite des Lautsprecherkorbes posi-

tioniert um eventuelle Kurzschlüsse auch bei hoher Leistung

auszuschlieβen (Das Positiv-Terminal ist durch eine Farbmarkierung geken-

zeichnet). Eine rote Farbamrkierung befindet sich immer bei einem

Lautsprecher mit einer Impedanz von 8 Ohm, eine violette Farbmarkierung

zeichnet die Lautsprecher mit der Impedanz 4 Ohm.

DEUTSCH

Volumen-Berechnung

Sollten zwei gegenüberliegende Seiten ungleich lang sein, so können sie

die Maβe zusammen rechnen und durch zwei dividieren um den

Durchschnitt zu erhalten. Dies macht Ihnen die Berechnung leichter und

Sie müssen das Gehäuse nicht in Sektionen berechnen, die Sie danach

wieder mühselig zusammen zählen müssen. Die Materialstärke beeinflu

βt

natürlich auch das Innen-Volumen, so muss für eine präzise Berechnung

die Materialstärke von Au

βen-Volumen abgezogen werden. Der

Lautsprecher verringert ebenfalls das Innen-Volumen, auch er sollte natür-

lich heraus gerechnet werden. Jedes Lautsprecher-Volumen ist unter

“Specifications” genau aufgelistet.

Gehäuse-

Volumen =

1000cc

/Kubik liter

Höhe (cm) x Breite (cm) x Tiefe (cm)

(Kubik Liter)

Zur Volumen-Berechung benötigen sie die genauen Maβe und

Dimensionen in Zentimetern.

Um das Gehäuse so präzise wie möglich zu bauen, sollten die

Gehäusewände sehr steif und luftundurchlässig sein, um dem entsehenden

Luftdruck des Lautsprechers standhalten zu können. Wir empfehlen 1,9 cm

mittelverdichtete Faserplatte (MDF), die in den meisten Baumärkten ange-

boten wird. Bei einem grö

βeren Gehäuse sollten Sie Versteifungen durch

Holzbalken montieren. Diese sollten – wie auch das gesamte Gehäuse –

mit Holzleim geklebt und verschraubt oder vernagelt sein. Um eine höhere

Dichte zu erreichen, empfiehlt es sich, die Kanten und Verschraubungen

mit Silikon abzudichten und das Gehäuse von innen mit einer

Hohlraumversiegelung zu behandeln.

Der Gehäuse Bau

DEUTSCH

LEGGERE CON ATTENZIONE LE SEGUENTI ISTRUZIONI PRIMA DEL-

L'INSTALLAZIONE DEL PRODOTTO.

I connettori di ingresso positivi e negativi sono montati sul cestello in

posizioni speculari. Il montaggio separato impedisce al segnale musicale di

cortocircuitarsi ad altissimi livelli di volume. (Il terminale di ingresso é indi-

cato da una marcatura colorata sul cestello.) Un contrassengno rosso indi-

ca che l'impedenza dell'altoparlante é 8 ohm, il contrassegno viola é imp-

iegato per i 4 ohm.

Introduzione

I woofer RF Punch HE sono una linea completa di altoparlanti per basse fre-

quenze con diametri che vanno da 20 a 46 cm e disponibili sia a 4 che a

8 ohm. (I woofer RF Punch HE sono progettati per il funzionamento princi-

pale in cassa chiusa.). Impiegando le piú aggiomate tecnologie e materiali,

siamo in grado di offrire altoparlanti che possono riprodurre un'elevata

pressione sonora alle basse frequenze mantenendo i volumi di impiego

assolutamente ridotti.

CONNESSIONI DI INGRESSO

ITALIANO

Calcolo del Volume

Calcolare il volume é essenzialmente solo un problema di misurazione

delle dimensioni in centimetri della cassa e di applicazione della formula:

Volume della

cassa =

(litri)

1000cc

/litri

Alteza (cm) x Larghezza (cm) x Profonditá (cm)

Se due pareti parallele sono di dimensioni diverse (prisma), semplicemente

sommatele e dividete il risulto per due. Impiegando il risultato ottenuto

potete calcolare il volume senza dividere la cassa i sezioni. Lo spessore del

legno riduce il volume interno, per cui é necessario sottrario dalle dimen-

sioni esterne. Anche il volume dell'altoparlante stesso riduce il volume

della cassa e deve essere sottratto. Il volume che ciascun altoparlante con-

tribuisce a togliere dalla cassa é indicato nelle tabelle con le specifiche.

Per ottenere le prestazioni massime, le pareti della cassa devono essere

rigide e non flettere sotto la sollecitaxione della elevata pressione generata

dal woofer. Noi raccomandiamo l'impiego di MDF con uno spessore min-

imo di 19 mm, materiale facilmente reperibile in tutte le falegnamerle. Per

casse di dimensioni molto grandi é indispensabile prevedere dei rinforzi

interni. Le giunture devono essere incollate e fissate con viti o chiodi in

abbondanza. Intermanmente le giunture devono essere siliconate per

impedire trafilati d'aria. Anche la colla da legno funziona bene. Essendo il

MDF un materiale poroso si consiglia di sigillare l'esterno con materiali

poliuretanici.

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Rockford Fosgate Punch HE RFP3412 Installation & Operation Manual

Marca: Rockford Fosgate

Modello: Punch HE RFP3412

Tipo: Installation & Operation Manual

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English: Rockford Fosgate Punch HE RFP3412
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Rockford Fosgate Punch HE RFP3412 Installation & Operation Manual

Questo manuale è adatto anche per

Rockford Fosgate Punch HE RFP3412 Installation & Operation Manual

in altre lingue

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