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Product comparison
Frequently Compared Component Subwoofers

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Memphis Audio 15-PRX8D4
Power Reference Series 8" dual 4-ohm voice coil component subwoofer
In stock
1 review
$99.99 each
  • treated paper cone with double-stitched butyl surround
  • power handling: 200 watts RMS
  • sensitivity: 84 dB
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Memphis Audio 15-PRX8S4
Power Reference Series 8" 4-ohm component subwoofer
In stock
2 reviews
$99.99 each
  • treated paper cone with double-stitched butyl surround
  • power handling: 200 watts RMS
  • sensitivity: 84 dB
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Memphis Audio BRX844
Bass Reference Series 8" dual 4-ohm voice coil subwoofer
Low stock
$139.99 each
  • coated high-density paper cone
  • double-stitched foam surround
  • power handling: 250 watts RMS (500 watts peak)
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Rockford Fosgate P3SD4-8
Punch Stage 3 shallow 8" subwoofer with dual 4-ohm voice coils
In stock
15 reviews
$169.99 each
  • dual 4-ohm voice coils
  • anodized aluminum cone with M-Roll Santoprene™ surround
  • 50-150 watts RMS power range
       
Condition New Stock New Stock New Stock New Stock
Size 8 -inch 8 -inch 8 -inch 8 -inch
Impedance 2 ohms or 8 ohms 4 ohms 2 ohms or 8 ohms 2 ohms or 8 ohms

"Pulp" refers to processed wood products, or paper.

" data-placement="bottom">Cone Material
Treated Paper Treated Paper Reinforced Paper Anodized Aluminum
Surround Material Butyl Rubber Butyl Rubber Foam Santoprene
Ideal Sealed Box Volume (cubic feet) 0.45 0.45 0.6 0.25
Ideal Ported Box Volume (cubic feet) 0.7 0.7 1 0.75
Port diameter (inches) 2 2 N/A 3
Port length (inches) 5.75 5.75 N/A 9
Free-Air No No No No
Dual Voice Coil Yes No Yes Yes
Sensitivity 84 dB at 1 watt
84 dB at 1 watt
85 dB at 1 watt
82 dB at 1 watt
Frequency Response --- --- --- 38 - 250 Hz
Max RMS Power Handling 200 200 250 150
Peak Power Handling (Watts) 400 400 500 300
Top Mount Depth (inches) 3 11/16 3 11/16 4 1/8 2 5/8
Crutchfield Vehicle Selector to see only the speakers that'll fit in your vehicle." data-placement="bottom">Bottom Mount Depth (inches) N/A N/A N/A N/A
Cutout Diameter or Length (inches) 6 15/16 6 15/16 7 7 1/8
Vas (liters) 0 0 21.81 15.8
Fs (Hz) 0 0 47 38
Qts 0 0 0.41 0.87
Xmax (millimeters) 0 0 9.91 8.4
Parts Warranty 1 Year 1 Year 1 Year 1 Year
Labor Warranty 1 Year 1 Year 1 Year 1 Year
  Owner's Manual Owner's Manual Owner's Manual Owner's Manual
Hands-on Research Hands-on Research Hands-on Research Hands-on Research
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Memphis Audio 15-PRX8D4
Power Reference Series 8" dual 4-ohm voice coil component subwoofer
In stock
1 review
$99.99 each
Remove

Adding...
Memphis Audio 15-PRX8S4
Power Reference Series 8" 4-ohm component subwoofer
In stock
2 reviews
$99.99 each
Remove

Adding...
Memphis Audio BRX844
Bass Reference Series 8" dual 4-ohm voice coil subwoofer
Low stock
$139.99 each
Remove

Adding...
Rockford Fosgate P3SD4-8
Punch Stage 3 shallow 8" subwoofer with dual 4-ohm voice coils
In stock
15 reviews
$169.99 each
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