Expert Service 1-661-257-9993 [Hours]

Rockford Fosgate Prime R2D4-10

500W Max (250W RMS) 10" Prime Stage 2 Dual 4-ohm Subwoofer

In Stock. Only 1 Left!

Thanks , You Pay:


with warranty

+ FREE Shipping in US 48

Order within 64 hrs 30 mins to ship 1/23

Arrives by Friday, Jan. 27 to zip 94107

Fast, Free Shipping

Within the US 48

60-Day Money-Back

Hassle Free Returns

Low Price Guarantee

Seen it for less? Click here

365-Day Coverage

Warranty assistance for a year

Get FAST answers from customers ASK a Question See questions answers

General Features

  • 10" Dual 4 ohm Prime Series Subwoofer
  • Power Handling:
    • Peak: 500 watts
    • RMS: 250 watts
  • Recommended power range: 175 - 300 watts RMS
  • CEA-2031 Compliant
  • Klippel Verified
  • 12 AWG compression terminals
  • Mica-injected polypropylene cone
  • Black raised surround
  • Linear spider with 16 AWG woven tinsel leads
  • StampCast basket with integrated spider venting
  • CEA-2031 Compliant accurate power handling rating
  • Designed for use with sealed and vented enclosures
  • High temperature 2" voice coil
  • Integrated PVC trim ring
  • Anodized aluminum voice coil former
  • Mounting Depth: 4.319"
  • Cutout Diameter: 9.125"
  • Magnet Weight: 43oz
  • Frequency Response: 45 - 250 Hz
  • Xmax: 6.5mm
  • Sensitivity: 87 dB @ 1 watt / 1 meter
  • Recommended Ported Enclosure: 1.40 cubic ft
  • Recommended Sealed Enclosure: 0.59 cubic ft
  • Matching Amplifiers: (one subwoofer)
  • Matching Amplifier: (two subwoofers)
  • Authorized Internet Dealer
  • 90 Day Sonic Electronix Warranty

  • Priced Individually

Check out the Rockford Fosgate R2 Series Owner's Manual

Tips for Installing the R2D4-10 Subwoofer


Second Depth
The second depth is used only when the box is slanted or angled. This value is the top measurement and it is measured in inches.
The front-to-rear depth of the item, in inches. If the item is angled or slanted, this value is the bottom measurement.
The height of the item, measured from top to bottom, in inches.
The width of the item from left to right (side-to-side) measured in inches.
Color of handle.

Warranty and Return Policy

Parts Warranty Duration
90 days
Labor Warranty Duration
90 days
Warranty Provider
Sonic Electronix

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating

Browse 3 questions and 15 answers
Hide answersShow all answers | Sort by
Why did you choose this?
Sonic Electronix Store
Cheap and Rockford is apparently good for speakers
Colton R on Nov 20, 2016
its Rockford fosgate.enough said
david b on May 25, 2016
Fosgate is a well known trusted brand that builds quality products and 2 of these in the back of the explorer sounds really good.Now to add a pair of P2 8;s and it will be complete Ty Sonic Electronix for the great service and speedy deliveries
Brian L on Jun 23, 2016
after a year they still sound good for the price...
lewis b on Oct 18, 2015
I usto have 2 12' p1s but the specs between these and the p1s look the same how would the r2 and p1 be different?
A shopper on Dec 7, 2014
Best Answer: Different product lines. The higher model likely has a larger magnet, more voice coil venting ect.
Reply · Report · Jake on Dec 31, 2014
· Add Answer · I Have This Question Too (1)
this feels like a dumb question but will this do 150 watts rms from a Rockford amp? will it blow up or sound horrid?
matthup on Dec 18, 2014
Best Answer: Hello Matt,

The subwoofer will take it just fine; However, the problem lies with the User. If you do not tune the setup right, and/or if you send a Clipping signal in order to counter the lack of power, then That will harm the subwoofer. This is why we often suggest Overpowering a subwoofer, because you have the ability to dial down if needed.
Reply · Report · Sonic Electronix SStaff on Dec 19, 2014
· Add Answer · I Have This Question Too (0)

Product Summary


Model Number




Internal SKU


Internal Product ID


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 Prime R2D4-10