R2D4-12

• 12" subwoofer with dual 4-ohm voice coils
• mica-injected polypropylene woofer cone with poly-foam surround
• stamped solid-steel frame
• power range: 50-250 watts RMS (500 watts peak power)
• frequency response: 43-250
• sensitivity: 89 dB
• top-mount depth: 5-1/8"
• sealed box volume: 1.02 cubic feet
• ported box volume: 1.79 cubic feet
• grille not included
• warranty: 1 year
• 60-day returns
• MFR # R2D4-12

• Size    12 -inch
• Impedance (Ohms)    2, 8
• Cone Material    Mica injected poly
• Surround Material    Poly-foam
• Port diameter (inches)    4
• Port length (inches)    9.3
• Free-Air    No
• Dual Voice Coil    Yes
• Sensitivity    87 dB at 1 watt
• Frequency Response    43 - 250 Hz
• Max RMS Power Handling    250
• Peak Power Handling (Watts)    500
• Top Mount Depth (inches)    5 1/4
• Bottom Mount Depth (inches)    N/A
• Cutout Diameter or Length (inches)    11 1/16
• Vas (liters)    68.8
• Fs (Hz)    35
• Qts    0.6
• Xmax (millimeters)    6
• Parts Warranty    1 Year
• Labor Warranty    1 Year

Box Requirements

• Ideal Sealed Box Volume (cubic feet)    1.02
• Minimum Sealed Box Volume (cubic feet)    0.75
• Maximum Sealed Box Volume (cubic feet)    1.25
• Ideal Ported Box Volume (cubic feet)    1.79
• Minimum Ported Box Volume (cubic feet)    N/A
• Maximum Ported Box Volume (cubic feet)    N/A

Rockford Fosgate R2D4-12 owner's manual