Rockford-Fosgate Prime R1S4-12

Features:

• 12" Single 4-Ohm Prime Series Subwoofer
• Power Handling:
• Peak: 400 watts
• RMS: 200 watts
• Recommended power range: 100 - 200 watts RMS
• CEA-2031 compliant
• Verified with Klippel speaker certification
• 12 AWG compression terminals
• Fiber reinforced painted paper-pulp woofer cone
• High temperature 2" voice coil
• Laser-etched aluminum dustcap
• High durability compressed foam surround
• Proprietary powder coated stamped steel frame with spider cavity venting
• Fatigue resistant poly-cotton spider with integral woven leads
• High temperature copper voice coil with aluminum former
• Integrated ABS decorative trim ring
• Stamped mesh grille insert available: Rockford Fosgate R1G-12
• Mounting Depth: 5.0"
• Cutout Diameter: 10.94"
• Magnet Weight: 52.47oz
• Frequency Response: 22 - 250 Hz
• Xmax: 6.3mm
• Sensitivity: 87 dB @ 1 watt / 1 meter
• Optimized for sealed enclosures
• Recommended Sealed Enclosure: 0.70 - 1.80ft³
• Matching Amplifiers: (one subwoofer)
• Rockford Fosgate PBR500X1, @4ohms 
  ✔ Preferred Match
• Rockford Fosgate P300X1, @4ohms
• Matching Amplifier: (two subwoofers)
• Rockford Fosgate P500X1BD, Parallel @2ohm 
  ✔ Preferred Match
• Rockford Fosgate P300X1, Parallel @2ohm

Specifications:

• Subwoofer Series: Prime R1 (Rockford Fosgate)
• Subwoofer Size: 12"
• Peak Power Handling: 400 watts
• RMS Power Handling: 200 watts
• Voice Coil(s): Single
• Impedance (Per Voice Coil): 4 ohms
• Voice Coil Diameter: 2"
• Frequency Response: 22 - 250 Hz
• Sensitivity: 87 dB
• Xmax (millimeters): 7 mm
• Subwoofer Design: Round / Circle
• Main Cone Color: Black
• Woofer Composition: Fiber Impregnated Cone
• Woofer Surround: Foam
• Magnet Structure: Single Stacked
• Re-Cone Kit Available: No