Rockford Fosgate Prime R2 Series 12" Subwoofer

The Rockford Fosgate Prime R2 Series 12" Subwoofer is a dual‑voice‑coil 12-inch driver engineered for serious bass in both sealed and vented enclosures. Its mica‑injected polypropylene cone and stamped‑cast basket with spider venting help keep the motor cool under demanding loads.

• Dual Voice Coil: Provides wiring flexibility for 2‑Ω or 4‑Ω configurations, enabling various amplifier and enclosure setups.
• 12 AWG Compression Terminals: Robust connections support reliable wiring and durable installations.
• Mica Injected Polypropylene Cone: Combines stiffness and damping for tight, accurate bass with reduced cone loss at high excursion.
• Anodized Aluminum Voice Coil Former: Improves durability and thermal stability under demanding bass demands.
• StampCast Basket with Integrated Spider Venting: Enhances cooling by venting heat from the motor during heavy bass output.
• Optimized for Sealed and Vented Enclosures: Delivers solid performance in either box type, letting you tailor bass for your vehicle and goal.
• Integrated PVC Trim Ring: Provides a clean, factory‑like appearance in installation.
• CEA-2031 Compliant: Meets standardized measurement practices for consistent specification reporting.
• Voice Coil Diameter: 2" (51 mm) coil diameter supports strong motor response across versions.
• Nominal Impedance: Dual 2‑Ohm or Dual 4‑Ohm versions to match your amplifier and wiring plan.
• Power Handling: 250 Watts RMS, 500 Watts Max for capable bass with appropriate amplification.
• Electrical Parameters: Fs 34.6–34.9 Hz; Sd 539.1 cm²; Le 3.9 mH; Re 3.80–7.17 Ω; Qts 0.58–0.60; Qes 0.62–0.66; Qms 7.33–8.29; Vas 66.4–68.8 L.
• Xmax: 6.5 mm of linear excursion for deeper bass before distortion.
• SPL: 88.7–89 dB (1W/1m) for measurable output in a proper enclosure.
• Enclosure Volumes: Sealed Vb 1.02 cu ft (28.8 L); Vented Vb 1.79 cu ft (50.6 L).
• Cutout and Mounting: 11.25" (285 mm) cutout with 5.067" (128 mm) mounting depth.

In a real build, this driver pairs well with a suitable amplifier to deliver defined, controlled bass from a compact to mid‑sized trunk setup. The dual voice coil arrangement simplifies impedance matching and multi‑woofer wiring, while the vented spider design helps manage heat during high‑level playback. The 12" size and 6.5 mm Xmax provide meaningful bass extension in typical car enclosures, with Sealed and Vented box volumes guiding enclosure choice. The integrated trim ring and rugged terminals make installation straightforward and durable.