Rockford Fosgate R1S412 Safety, Carton Contents, Recommended Enclosures, Sealed Enclosures

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SAFETY

Before installation, disconnect the battery CAUTION: 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 systems may produce sound pressure levels well over 130dB. Use common sense and practice safe sound.

CARTON CONTENTS

• (1) Prime R1 Series Subwoofer

RECOMMENDED ENCLOSURES

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

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

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.

FEATURES

Parabolic polypropylene cone.

12 AWG compression terminals.

18 gauge stamped steel frame.

Available in single 4 ohm.

Optimized for sealed enclosures.

SEALED ENCLOSURES

*NOTE: Vb is NET volume (internal volume needed for

woofer). Speaker, bracing and/or port displaceExternal- mentdimensionsshouldarebebaseddedon 3/4"to this(1.90cm)volumeMDF. .

NOTE: When using enclosures other than recommended, con-

tact RFTECH Support for correct application.

W

H

 

 

 

 

 

 

 

D

 

 

 

 

 

 

 

 

 

 

 

 

Optimum Sealed Enclosure Recommendation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SEALED ENCLOSURES

10"

12"

 

 

 

 

 

 

 

 

 

R1S410

R1S412

 

 

 

 

Vb* Internal Volume cu.ft. (Liter)

0.75 (21.24)

1.02 (28.88)

 

 

 

 

F3

-3dB Point (Hz)

50.9

43.5

 

 

 

 

Qtc

Enclosure Damping

0.875

1.097

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

H

Height-inch (cm)

14 (35.56)

14 (35.56)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W

Width-inch (cm)

17 (43.18)

18 (45.72)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D

Depth-inch (cm)

8.25 (20.96)

10 (25.40)

 

 

 

 

 

 

 

 

 

 

 

Recommended Sealed EnclosureVolume Range

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SEALED ENCLOSURES

10"

12"

 

 

 

 

 

 

 

 

 

R1S410

R1S412

 

 

 

 

Vb

Volume Range cu. ft.

0.50 to 0.85

0.70 to 1.80

 

 

 

 

 

 

 

 

(Liter)

(14.16 to 24.07)

(19.82 to 50.97)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SPECIFICATIONS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PRIME R1-SVC

10"

12"

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Nominal Impedance (ohms)

 

4Ω

4Ω

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Frequency Response

24Hz - 250Hz

22Hz - 250Hz

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Voice Coil Diameter

1.5” (6-Layer)

1.5” (6-Layer)

 

 

 

 

 

 

 

 

 

(3.8cm)

(3.8cm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fs - Free Air Resonance

 

24 Hz

22 Hz

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Qts

0.4

0.49

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Vas - cu. ft.

3.0

6.89

 

 

 

 

 

 

(Liters)

(85)

(195)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Xmax

 

0.23”

0.25”

 

 

 

 

 

 

 

 

 

(5.8mm)

(6.3mm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SPL (dB @ 1w/1m)

 

86 dB

87 dB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Power Handling (Watts)

300Watts Max

300Watts Max

 

 

 

 

 

 

150 ts RMS

150 ts RMS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Specifications subject to change without notice

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Contents Date of Purchase Specifications SafetyCarton Contents Recommended EnclosuresPhysical Dimensions Wiring ConfigurationsCajas Cerradas Configuraciones del cableadoBerechnung des Volumens Construcción de una caja