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Rockford Fosgate RM18D2B

300W 8" Dual 2-ohm Prime R1 Series Marine Subwoofer - Black

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Rockford Fosgate RM18D2B

300W 8" Dual 2-ohm Prime R1 Series Marine Subwoofer - Black

$129.99

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Rockford Fosgate Audio Store
Rockford Fosgate 10" Prime R1 Subwoofer

R1 Marine Subwoofer


Element Ready

The Prime R1 marine subwoofer series are purpose-built for marine watercraft or powersports applications. They set the bar with flexible enclosure options and high power handling so you can enjoy your setup in even the most demanding of environments. With a UV and Salt-Fog resistant TPE surround and 100% UV stable Centrex® injection molded plastic parts, you can rest assured that the driver will be defended from the elements for many years to come. These subwoofers are protected against Dust, UV, Water, Corrosion, and feature Stainless hardware - including the provided grille.




Exceeding the Standard

The Rockford Fosgate following is a unique one, they push their gear to the extreme and expect nothing less than top quality performance. This is why Rockford Fosgate makes sure to take extra measures in the pursuit to exceed the expectations of all of us. This includes making sure that the Power handling on this drivers conform to CEA-2031 industry standards and that the drivers are Klippel Verified - all in order to deliver the best possible subwoofer to the Rockford Fosgate faithful.





General Features:


 

 

 

 

 

 
  • 8" Dual 2-ohm Prime R1 Marine Subwoofer
  • Power Handling:
    • Peak: 300 watts
    • RMS: 150 watts
  • Recommended Power Range: 75 - 200 watts RMS
  • CEA-2031 Compliant Subwoofer
  • Klippel Verified Subwoofer
  • Meets or exceeds ASTM test standards for Marine/Outdoor use
  • 100% UV stable ASA injection molded plastic parts
  • UV and salt fog resistant Santoprene surround
  • Injection molded mineral filled polypropylene cone body with UV inhibitors
  • Removable grille cover insert
  • Ultra-flexible fully insulated silicone lead wire
  • 1.5" aluminum voice coil diameter
  • Proprietary corrosion resistant spring loaded push terminals
  • Moisture, tear and fatigue resistant Aramid fiber spider
  • Linear, high excursion matched motor magnetics and suspension design
  • VAST Surround, provides up to a 25% more cone area
  • Protected against Dust, UV, Water, Corrosion
  • Dual 12 AWG compression speaker terminals
  • FlexFit slot mounted frame pattern basket
  • Top-mount depth: 3.60"
  • Cutout Diameter: 7"
  • Frequency Response: 30 - 250 Hz
  • Sensitivity: 85 dB
  • Xmax: 7 mm
  • Resonance Frequency (Fs): 40 Hz
  • Optimum Sealed Enclosure: 0.5 ft² (15.62)
  • Optimum Vented Enclosure: 1.10 ft² (31.15)
  • Also Optimized for Infinite Baffle (Free Air) Applications
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Individually



Check out the Rockford Fosgate RM18D2B Owner's Manual

Subwoofer Specifications

Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
8"
Subwoofer Design
This is the design of the subwoofer or the opening of the subwoofer enclosure. Each design has it's own benefits, whether it is a square, circle, or oval.

Round/Circle: This is the typical and common subwoofer design. They have a round cone and are a circle in design.

Square: These woofers are able to achieve a greater cone area in a smaller space. Because of the greater surface area, some square subwoofers will be louder than a round subwoofer of the same size.

Round / Circle
Main Cone Color
This is the color of the speaker's or subwoofer's cone.
Black
Voice Coil(s)
Dual voice coil subs have more wiring flexibility than single voice coils subs; however, single voice coil subwoofers provide easier hookup options for wiring multiple subwoofers in parallel or series. You may also run a dual voice coil (DVC) sub in parallel, series, or combination. A quad voice coil has four voice coils and is equal to two dual voice coil subwoofers as far as wiring goes.
Dual
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
1.5 ohms
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
300 watts
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
150 watts
Woofer Surround
A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.
Santoprene Rubber
Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Injection Molded Polypropylene (IMPP)
Minimum Sealed Box Volume
This value indicates the minimum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
0.4 cubic feet
Maximum Sealed Box Volume
This value indicates the maximum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
0.75 cubic feet
Minimum Ported Box Volume
This value indicates the minimum ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
1.10 cubic feet
Maximum Ported Box Volume
This value indicates the maximum ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
1.10 cubic feet
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
 
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
85 dB
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
30 - 250 Hz
Xmax (millimeters)
Typically measured in millimeters, the Xmax value is the measure of a speaker cone's maximum excursion in one direction while maintaining a linear behavior.
7 mm
Top-Mount Depth
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
3.60"
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.

No
Cutout Diameter
The actual diameter of the hole you will need to cut out if you are creating a new mounting location for this speaker, or if you are mounting a subwoofer in a box.
7"
Recommended Enclosure Type
This is the recommended type of enclosure that the subwoofer should be installed into. Some subwoofers are specially designed for particular enclosures.

Sealed: These enclosures completely enclose the air inside the box. These boxes produce a tight bass.

Ported/Vented: These enclosures have a slot of air to escape from the box. The result is a sound that has more "boom".

Bandpass: These are a combination of both sealed and ported enclosures. They can be very efficient, but require tuning for the best response.

Ported / Vented
Sealed
Subwoofer Grille
Most subwoofers are able to accommodate a universal grille; however, some subs include a grille and others have a specific, optional grille available for purchase separately. If "yes", then the subwoofer includes a grille. If "optional (sold separately)" the matching grille will need to be purchased in addition to the sub.
Yes - Included
Re-Cone Kit Available
Some higher end subwoofers have replaceable cone assemblies. In case of a blown woofer, a recone kit allows for a simple replacement, as opposed to purchasing an entire new subwoofer.
No
Amplified or Non-Amplified
This indicates if the subwoofer comes with an amplifier installed as one unit or Non-amplified which requires an external amp to power the subwoofer
Non-Amplified

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Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

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Product Summary

Manufacturer

Model Number

RM18D2B

UPC

780687345389

Weight

8.00lbs

Internal SKU

rm18d2b

Internal Product ID

94330

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Rockford Fosgate RM18D2B

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