R2D2-12 - Car speaker Rockford Fosgate - Free user manual and instructions

Product Type	Car Subwoofer
Brand	Rockford Fosgate
Model	R2D2-12
Size	12 inches (30 cm)
Impedance	Dual 4 ohms (configurable to 2 or 8 ohms)
Power Handling (RMS)	250 Watts
Power Handling (Peak)	500 Watts
Sensitivity	86 dB (1W/1m)
Frequency Response	25 Hz - 250 Hz
Mounting Depth	5.6 inches (14.2 cm)
Cutout Diameter	11.1 inches (28.2 cm)
Enclosure Type	Sealed or Ported (recommended 1.0-1.5 cu ft sealed)
Voice Coil	2-inch (5 cm) high temperature aluminum
Cone Material	Injection molded polypropylene with mineral fill
Surround Material	Rubber with progressive roll
Recommended Amplifier Power	200-350 Watts RMS per channel
Warranty	1 year (limited)
Care Instructions	Wipe with dry cloth; avoid moisture and direct sunlight
Safety Note	Secure mounting; do not exceed rated power to prevent damage

Frequently Asked Questions - R2D2-12 Rockford Fosgate

What is the impedance of the R2D2-12 subwoofer?

The R2D2-12 has dual 4 ohm voice coils, allowing wiring to 2 ohms (parallel) or 8 ohms (series) for amplifier matching.

What size enclosure should I use?

For a sealed enclosure, use 1.0 to 1.5 cubic feet. For ported, use 1.5 to 2.0 cubic feet tuned to 32-35 Hz for optimal performance.

Can I use this subwoofer in a free-air setup?

No, the R2D2-12 requires an enclosure to perform properly and avoid damage. Free-air installation is not recommended.

What is the RMS power handling?

The RMS power handling is 250 watts. Peak power is 500 watts. Use an amplifier delivering 200-350 watts RMS for best results.

How do I break in my new subwoofer?

Play music at low to moderate volume (50% power) for 10-20 hours to allow the suspension to loosen. Avoid full power during break-in.

What is the mounting depth?

The mounting depth is 5.6 inches (14.2 cm). Ensure your enclosure or vehicle has enough clearance.

Is the subwoofer dual voice coil?

Yes, the R2D2-12 features dual 4 ohm voice coils for flexible wiring options.

What is the frequency response range?

The frequency response is 25 Hz to 250 Hz, making it suitable for deep bass.

How should I clean the subwoofer?

Gently wipe the cone and surround with a soft, dry cloth. Do not use liquids or harsh chemicals.

What is the warranty period?

Rockford Fosgate offers a 1-year limited warranty against defects. Keep your receipt for service.

USER MANUAL R2D2-12 Rockford Fosgate

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

Length of Warranty

Speakers - 1 Year. Any Factory Refurbished Product - 90 days (receipt required)

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. Products 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 product deemed to be equivalent) at Rockford's discretion.

What Is Not Covered

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

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

1. Service performed by anyone other than Rockford or an Authorized Rockford Fosgate Service Center
2. Any product which has had the serial number defaced, altered, or removed
3. 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 duration 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

Contact the Authorized Rockford Fosgate Dealer you purchased this product from. If you need further assistance, 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.

EU Warranty

This product meets the current EU warranty requirements, see your Authorized dealer for details.

R2 - DVC - DUAL VOICE COIL SUBWOOFERS

12" Dual 2-Ohm R2D2-10 R2D2-12 Dual 4-Ohm R2D4-10 R2D4-12

Installation & Operation

Serial Number: Date of Purchase:

Printed in China

BCF 112010 1230-56566-01

©2011 Rockford Corporation. All rights reserved. Rockford Fosgate, the Rockford Fosgate logo, and the PRIME logo are either registered trademarks or trademarks of Rockford Corporation.

www.RockfordFosgate.com

Check our website for additional information and updates on these products.

*Definitions:

www.RockfordFosgate.com

BCF 112010 1230-56566-01

SAFETY

CAUTION: Before installation, disconnect the battery negative (-) terminal to prevent damage to the unit, fire and/or possible injury.

PRACTICE SAFE SOUND™

Continuous exposure to sound pressure levels over 100dB may cause permanent hearing loss. High powered auto sound system may produce sound pressure levels well over 130dB. Use common sense and practice safe sound.

CARTON CONTENTS

• (1) Prime R2 Series Subwoofer

RECOMMENDED ENCLOSURES

This manual outlines two specific types of enclosures that provide distinctly different 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 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 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

Vented vs Sealed

The graph shown here is a sample of how the F3 drop-off point differs between sealed and vented 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.

CALCULATING VOLUME

Box Volume		Heightx	Widthx	Depth
Divided by (cubic feet)			1728

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.

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.

NOTE: Vb is the gross volume, which is the TOTAL internal volume, before any speaker and/or port displacement.

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	10"R2D2-10 / R2D4-10	12"R2D2-12 / R2D4-12
Vb - Internal Area cu. ft.(Liter)	0.59(16.7)	1.02(28.9)
F3 - -3dB Point (Hz)	57.5	51.4
Qtc- Enclosure Damping	0.75	0.94
H - Height-inch(cm)	15.75(40.01)	17.5(44.45)
W - Width-inch(cm)	17.5(44.45)	18.5(46.99)
D - Depth-inch(cm)	6.25(15.88)	8.25(20.96)

Recommended Sealed Enclosure Volume Range

SEALED ENCLOSURES	10"R2D2-10 / R2D4-10	12"R2D2-12 / R2D4-12
Vb - Volume Range cu. ft.(Liter)	0.50 to 0.75(14.16 to 21.24)	0.75 to 1.25(21.24 to 35.40)

Specifications subject to change without notice

VENTED ENCLOSURES

NOTE: Vb is the gross volume, which is the TOTAL internal volume, before any speaker and/or port displacement.

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 Vented (Ported) Enclosure Sizes

VENTED ENCLOSURES	10"R2D2-10 / R2D4-10	12"R2D2-12 / R2D4-12
Vb - Internal Area cu. ft.(Liter)	1.40(39.6)	1.79(50.7)
Fb - Tuning Frequency (Hz)	43.0	45.0
F3 - -3dB Point (Hz)	37.1	39.4
H - Height-inch(cm)	14.0(35.56)	16.5(41.91)
W - Width-inch(cm)	17.0(43.18)	20.5(52.07)
D - Depth-inch(cm)	15.25(38.74)	13.0(33.02)
P - Port Diameter andLength-inch(cm)	(1) 4 x 13(1) (10.16 x 33.30)	(1) 4 x 9.3(1) (10.16 x 23.70)

Number of ports noted. Specifications subject to change without notice.

NOTE: The port shown can be placed on any face of the enclosure as long as the port ends are not obstructed.

NOTE: When using vented enclosures, for maximum reliability and power handling ensure that a subsonic or "infrasonic" filter is used so that only usable low frequency signal is sent to the subwoofer.

PRIME R2-DVC 10" 12"
	R2D2-10 / R2D4-10	R2D2-12 / R2D4-12
A - Overall Diameter-inch 10.84 12.97(mm) (275) (329)
B - Screw Hole Diameter-inch 10.16 12.28(mm) (258) (312)
C - Mounting Depth-inch 4.33(mm) (110) (129)	5.10
D - Mounting Diameter-inch(mm) (232) (285)	9.13	11.22
E - Speaker Displacement - cu. ft.(Liter)	0.101(2.85)	0.150(4.25)

Specifications subject to change without notice

PRIME R2-DVC 10" 12"
	R2D2-10 / R2D4-10 R2D2-12 / R2D4-12
Nominal Impedance (ohms) 2 x 2 / 2 x 4 2 x 2 / 2 x 4
Frequency Response (Hz) 45-250 43-250
Voice Coil Diameter - inch 2 (4-Layer) 2 (4-Layer)(mm) (51) (51)
Displacement - cu.ft.	0.101	0.150
(Liter)	(2.85)	(4.25)
Fs - Free Air Resonance (Hz)	35	35
Qts	0.47 / 0.53	0.60
Vas - cu.ft.	1.38	2.34 / 2.43
(Liter)	(39.0)	(66.4 / 68.8)
Xmax - inch	0.256 / 0.236	0.256 / 0.236
(mm)	(6.5 / 6.0)	(6.5 / 6.0)
SPL (dB @ 1w/lm)	89	87
Power Handling-Watts (RMS)	250	250
(Peak)	500	500

Specifications subject to change without notice

WIRING CONFIGURATIONS

By varying the wiring configuration of your speakers you can create an impedance load to match your system. Altering the wiring configurations

gives a range of options for impedance loads. Series, Parallel, or Series-Parallel wiring configurations are different techniques for wiring speakers that provide different loads. Series configuration is a string method where speakers are wired end to end. Parallel configuration uses two or more speakers wired across common terminals.

Series-Parallel configuration combines both techniques. Choose the wiring diagram that corresponds to the number of woofers and the impedance of your amplifier.

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 that separates the audio signal fed to different amplifiers. For optimum subwoofer performance, we recommend using an active 80-100Hz low-pass crossover at 12dB/octave.