Rockford Fosgate Prime RM18D4 Manual de Usario

Rockford Fosgate Altavoz de subgraves Prime RM18D4

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Installation assistance available at:
www.rockfordfosgate.com/rftech
R O C K F O R D F O S G A T E . C O M
600 South Rockford Drive • Tempe, Arizona 85281 United States
Direct: (480) 967-3565 • Toll Free: (800) 669-9899
Installation & Operation
Serial Number: Date of Purchase:
RM18D2 RM18D2B RM18D4• •
RM18D4B RM110D2 RM110D2B• •
RM110D4 RM110D4B RM112D2• •
RM112D2B RM112D4 RM112D4B• •
SUBWOOFERS
2
Dear Customer,
Congratulations on your purchase of the world’s finest brand of car audio
products. At Rockford Fosgate we are fanatics about musical reproduc-
tion at its best, and we are pleased you chose our product. Through
years of engineering 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 carton 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 Rockford Fosgate in your
installation. Rockford Fosgate has everything from RCA cables and
speaker wire to power wire 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 accessories, which include everything from T-shirts to
hats.
Visit our web site for the latest information on all Rockford products;
www.rockfordfosgate.com
or, in the U.S. call 1-800-669-9899 or FAX 1-800-398-3985. For all other
countries, call +001-480-967-3565 or FAX +001-480-966-3983.
Table of Content
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 . Be sure to 1-800-669-9899
have your serial number, model number and date of purchase available
when you call.
Safety
This symbol with “WARNING” is intended
to alert the user to the presence of important
instructions. Failure to heed the instructions
will result in severe injury or death.
This symbol with “CAUTION” is intended to
alert the user to the presence of important
instructions. Failure to heed the instructions
can result in injury or unit damage.
• To prevent injury and damage to the unit, please read and follow the
instructions in this manual. We want you to enjoy this system, not get
a headache.
• If you feel unsure about installing this system yourself, have it installed
by a qualified Rockford Fosgate technician.
• Before installation, disconnect the battery negative (-) terminal to
prevent damage to the unit, fire and/or possible injury.
Introduction
©2014 Rockford Corporation. All Rights Reserved. ROCKFORD FOSGATE, PUNCH ® and associated logos where applicable are registered trademarks of Rockford
Corporation in the United States and/or other countries. All other trademarks are the property of their respective owners. Specifications subject to change without notice.
PRACTICE SAFE SOUND
Continuous exposure to sound pressure levels over 100dB may cause
permanent hearing loss. High powered auto sound systems may
produce sound pressure levels well over 130dB. Use common sense
and practice safe sound.
PRATIQUEZ UNE ÉCOUTE SANS RISQUES
Une exposition continue à des niveaux de pression acoustique upérieurs à
100 dB peut causer une perte d’acuité auditive permanente. Les systèmes
audio de forte puissance pour auto peuvent produire des niveaux de
pression acoustique bien au-delà de 130 dB. Faites preuve de bon sens et
pratiquez une écoute sans risques
PRACTIQUE EL SONIDO SEGURO
El contacto continuo con niveles de presión de sonido superiores a 100
dB puede causar la pérdida permanente de la audición. Los sistemas de
sonido de alta potencia para automóviles pueden producir niveles de
presión de sonido superiores a los 130 dB. Aplique el sentido común y
practique el sonido seguro.
PRAKTIZIEREN SIE SICHEREN SOUND
Fortgesetzte Geräuschdruckpegel von über 100 dB können beim
Menschen zu permanentem Hörverlust führen. Leistungsstarke
Autosoundsysteme können Geräuschdruckpegel erzeugen, die weit über
130 dB liegen. Bitte wenden Sie gesunden Menschenverstand an und
praktizieren Sie sicheren Sound.
OSSERVATE LE REGOLE DEL SUONO SENZA PERICOLI
La costante esposizione a livelli di pressione acustica al di sopra dei
100dB possono causare la perdita permanente dell’udito. I sistemi
audio ad alta potenza possono produrre livelli di pressione acustica ben
superiori ai 130dB. Si consiglia il buon senso e l’osservanza delle regole
del suono senza pericoli
2 Introduction
3 Specifications
4-5 Enclosures
Sealed or Vented
Wiring
6-7 Additional Languages
French
Spanish
German
Italian
8 Limited Warranty Information
4
Enclosures
Carton Contents
• (1) Marine Grade Subwoofer • (1) Socket head driver bit
• (1) Grille • Installation and Operation Manual
• (8) Socket Head Stainless Screws
Recommended Enclosures
This manual outlines two specific types of enclosures that provide distinctly dif-
ferent performance. This section is to help you decide which type is best for your
application.
Sealed Enclosures
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 construction and prevent air
leaks. The box volume will directly impact the performance of the speaker. Larger
enclosures 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
• Extended low frequency output when compared to vented enclosures
Vented Enclosures
Vented enclosures vary only from the sealed enclosure 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 frequen-
cies while medium and small boxes are easier to tune to higher frequencies. The
vented design is less linear in response than the sealed box but with noticeably
more output at the tuning frequency.
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
Infinite Baffle Design
These designs typically called “IB”, are the easiest enclosure types to build. The
reason is that you are not actually building an enclosure, but rather simulating one.
This is done by closing off a cavity area (ie; car trunk, enclosed area of a boat hull)
with a baffle board. This creates your “IB” sub-woofer system. Essentially, an “IB”
design can just be considered a large sealed enclosure design. Given that an “IB”
design does not rely on a volume of air for its suspension, the low frequency output
is driven by the speaker’s inherent damping or “Qtc”.
Advantages of infinite baffle design:
• Easy to build
• Light-weight
• Deep bass response with lower power requirements
Vented vs Sealed vs Infinite Baffle
The graph shown here is a sample of how SPL and Excursion differs between the
various enclosures.
Building an Enclosure
To work properly, the walls of the enclosure must be rigid and not flex when sub-
jected 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.
Calculating Volume
Calculating volume is merely a matter of measuring the dimensions in inches and
using the formula: H x W x D divided by 1728 (cubic feet). See block below.
Box Volume Height” x Width” x Depth”
Divided by (cubic feet) 1728
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 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.
Sealed Enclosure
NOTE: Vb is the internal volume, before any speaker and/or port dis-
placement is added. All external dimensions were based on the use of
3/4” (1.90cm) materials.
NOTE: When using enclosures other than recommended, call Technical Support
for correct application.
Optimum Sealed Enclosure Recommendation
Sealed Enclosures 8” 10” 12”
Total Internal Volume cu. ft. (Liter) 0.55 (15.62) 1.1 (31.15) 1.65 (46.72)
Woofer Displacement cu. ft. (Liter) 0.05(1.41) 0.1 (2.83) 0.12 (3.4)
Vb - Net Internal Volume cu. ft. (Liter) 0.50 (14.2) 1.0 (28.32) 1.53 (43.32)
F3 - 3dB Point (Hz) 47.7 58.4 43.1
Qtc - Enclosure Damping 1.19 0.66 0.88
H - Height - inch (cm) 12 (30.48) 14.0 (35.56) 15.0 (38.1)
W - Width - inch (cm) 12 (30.48) 16.0 (40.64) 16.0 (40.64)
D - Depth - inch (cm) 10 (25.4) 13.25 (33.66) 15.0 (38.1)
Recommended Sealed Enclosure Volume Range
Sealed Enclosures 8” 10” 12”
Vb - Volume range cu. ft.
(Liter)
0.4 to 0.75
( )11.34 - 21.24
0.75 to 1.25
( )21.24 - 35.4
1.25 to 1.75
( )35.4 - 49.55
IMP(ohms)
H
W
D

Especificaciones del producto

Marca: Rockford Fosgate
Categoría: Altavoz de subgraves
Modelo: Prime RM18D4

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