Rockford Fosgate R1S4-12
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Item# 21401 / Condition:  Brand New    

Rockford Fosgate R1S4-12

12" 300 Watts 4-Ohm Single Voice Coil Prime Series Component Car Subwoofer Driver

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Save $41.47 | Reg. Price $89.99

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Rockford Fosgate Prime R1 12” subwoofers provide high performance bass at an unbelievable value. This model features a laser etched curvilinear dust-cap to dissipate heat generated by the high-temp copper voice coil as well as a solid stamped steel frame with integrated frame mounted compression terminals. Best of all, they are optimized for both sealed and vented enclosures.

Rockford Fosgate is considered the best in car audio in terms of quality, sound and affordability. is an authorized retailer of Rockford Fosgate products.

Power Handling

  • 150 Watts RMS
  • 300 Watts Max
  • 12 AWG compression terminals
  • Anodized aluminum voice coil former
  • Optimized for sealed enclosures
  • Parabolic polypropylene cone
  • Single voice coil design
  • Stamped steel basket
  • Impedance: 4-Ohm
  • Voice Coil Diameter: 2.0" (4-Layer) (3.8cm)
  • Motor Size: 52.47 oz.(1.49 Kg.)
  • Speaker Connector: 12 AWG compression
  • Fs (Hz): 22
  • Re (Ohms): 3.39
  • Le (mH): 2.2
  • Qts: 0.49
  • Qes: 0.55
  • Qms: 4.76
  • Vas (Liters): 197.2
  • Sd (cm2): 530
  • SPL (1w/1m): 87
  • Xmax (mm): 6.3
  • Woofer Displacement: 0.043 cu. ft. (1.22 Liters)
  • Cutout Diameter: 10.94 in. (27.80 cm)
  • Mounting Depth: 5.00 in. (12.70 cm)
  • Subwoofers are usually sold as a single unit unless otherwise noted.
  • UPC: 780687343767
  • Weight: 9
  • Authorized Internet Dealer
*Warranty: 1 Year Manufacturer warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to for replacement within 30 days from the original date of purchase with proper return authorization. After the 30 day time period, products must be returned to their original manufacturer for the remainder of the manufacturer's warranty period.

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   Tyler----Calmar Customs From Swansea,SC
ok i got 2 of these in my 1990 ford ranger and i recommend these for a great sounding sub or a teenager wanting boom i wudnt put more than the wattage shown but they sound great & beat hard i dont have the box to the specs but they sound great and PORT THESE SPEAKERS!!!! they need to breathe i can always count on ROCKFORD FOSGATE

   Wesley From Oxford, MS
These are great subs! and CHEAP! i was so surprised that Rockford actually came out with a cheaper sub. they are pretty simple but they sound good so far.. i dont have the correct air space for them yet but even when they're suffocated they sound good. with the correct box volume i'm 100% sure they'll pound(for their wattage)