Rockford Fosgate R1S4-12 Prime 12 R1 4-Ohm SVC Subwoofer

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Rockford Fosgate R1S4-12 Prime 12” R1 4-Ohm SVC Subwoofer

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.

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
1 Year Warranty

Power Handling (Watts RMS)200 Watts RMS
400 Watts Max
Vented Box Volume (Vb)1.79 cu. ft. (50.6 Liters)
Sealed Box Volume (Vb)1.02 cu. ft. (28.8 Liters)
Voice Coil TypeSingle Voice Coil
CEA-2031 CompliantCEA-2031 Guidelines
Subwoofer TypeStandard
Le (mH)2.10
Re (Ohms)3.5
SPL (dB @ 1w/1m)90
Voice Coil Diameter2.0" (50.8 mm)
Magnet Weight (oz)40 oz. (1.13 Kg.)
Sd (cm2)530.9
Cutout Diameter11.22 in. (285 mm)
Xmax (mm)7.0
Woofer Displacement0.10 cu. ft. (2.80 Liters)
Vas (Liters)90.4
Mounting Depth4.94 in. (125 mm)
Fs (Hz)30.5
Shipping Weight9.25 Lbs. (4.19 Kg.)
Nominal Impedance4-Ohm
Speaker Connector12 AWG compression

Extra Information

Rockford Fosgate