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Product Comparison
Polk Audio db840DVC vs Rockford Fosgate R1S412

Polk Audio db840DVC

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Rockford Fosgate R1S412

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Condition New StockNew Stock
Size
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8 -inch12 -inch
Impedance
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4 ohms4 ohms
Cone Material
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PolypropylenePolypropylene
Surround Material
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Santoprene rubberButyl rubber
Ideal Sealed Box Volume (cubic feet)
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0.351.02
Ideal Ported Box Volume (cubic feet)
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0.6N/A
Port diameter (inches)
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3N/A
Port length (inches)
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11N/A
Free-Air
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NoNo
Dual Voice Coil
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YesNo
Sensitivity
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85 dB at 1 watt
87 dB at 1 watt
Frequency Response
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30 - 200 Hz22 - 250 Hz
RMS Power Range (Watts)
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50-18050-150
Peak Power Handling (Watts)
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360300
Top Mount Depth (inches)
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44 15/16
Bottom Mount Depth (inches)
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4 3/8N/A
Cutout Diameter or Length (inches)
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7 1/1610 15/16
Vas (liters)
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15.8195
Fs (Hz)
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4321.6
Qts
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0.590.49
Xmax (millimeters)
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6.16.3
Parts Warranty
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1 Year1 Year
Labor Warranty
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1 Year1 Year
  Owner's ManualOwner's Manual
 Hands-on ResearchHands-on Research

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