Rockford Fosgate - R1S4-10 Prime 10 inch 4 Ohm Slim Subwoofer 200W RMS

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Product Highlights:

10” Prime R1 4-Ohm SVC Subwoofer

The R1S4-10 features a 4-Ohm Single Voice Coil design, 200 Watt RMS power handling, and is optimized for both sealed and vented enclosures.

  • Fiber reinforced painted paper-pulp cone
  • Laser-etched aluminum dustcap
  • High durability compressed foam surround
  • Fatigue resistant poly-cotton spider with integral woven leads
  • Proprietary powder coated stamped steel frame with spider cavity venting
  • Bumped backplate with vented pole piece for greater thermal/mechanical power handling
  • High-temp copper voice coil with aluminum former
  • High-grade Y30 Ferrite magnet
  • Integrated spring-loaded nickel-plated push terminals
  • Integrated ABS decorative trim ring


Rockford Fosgate Prime R1 10” 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.

CEA-2031 Compliant: CEA-2031 Guidelines
Size: 10"
Nominal Impedance: 4-Ohm
Power Handling (Watts RMS): 200 Watts RMS 
400 Watts Max
Voice Coil Diameter: 2.0" (50.8 mm)
Magnet Weight (oz): 34 oz. (0.96 Kg.)
Speaker Connector: 12 AWG compression
Fs (Hz): 33.5
Re (Ohms): 3.5
Le (mH): 2.0
Qms: 8.55
Qes: 0.62
Qts: 0.58
Vas (Liters): 38.1
Sd (cm2): 336.5
SPL (dB @ 1w/1m): 87
Xmax (mm): 7.0
Woofer Displacement (in): 0.06 cu.ft. (1.80 Liters)
Cutout Diameter (in):  
Mounting Depth (in):  
Shipping Weight: 7.6 Lbs. (3.4 Kg.)


Power handling on Rockford Fosgate speakers conform to CEA-2031 industry standards.
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Klippel Verified

Klippel Verified

Klippel is a speaker certification program allowing us to deliver the best possible subwoofers.
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Anodized Aluminum Voice Coil Former

Anodized Aluminum Voice Coil Former

Rockford Fosgate subwoofers use anodized aluminum voice coil formers that provide superior heat...
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