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NVX NE81S w/ Alpine R2-W8D2

Single 8" Sealed 3/4" MDF Black Carpeted Subwoofer Enclosure – 0.45 Cu. Ft. with Polyfil and NVX Logo w/ 8" R2-Series Dual 2-ohm Car Subwoofer

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• 8" Single Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: .45 cubic feet
• Premium Black Carpet with Black NVX Logo

Learn more about the ne81s_r2w8d2
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List price $425.99
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$287.94

 with warranty
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Description


NVX brand icon

Authorized dealer

NVX NE81S

Single 8" Sealed 3/4" MDF Black Carpeted Subwoofer Enclosure – 0.45 Cu. Ft. with Polyfil and NVX Logo
Quantity: 1

Product Details:

  • Not compatible with NVX VC-Series Subwoofers
  • 8" Single Sealed Subwoofer Enclosure
  • Made from 3/4" Medium Density Fiberboard (MDF) construction
  • Built with precision CNC technology for exceptional accuracy
  • Pre-lined with Poly-Fil for improved acoustic response
  • Premium Black Carpet with Black NVX Logo
  • Spring Loaded Push Terminals
  • Maximum subwoofer mounting depth: 8-5/8"
  • Subwoofer cutout diameter: 7-3/8"
  • Internal box volume: .45 cubic feet
  • Dimensions: 11.25" D x 11.50" W x 11.50" H
  • Authorized Internet Dealer
  • 1-year Sonic Electronix Warranty

Alpine R2-W8D2

1000W Peak (350W RMS) 8" R2-Series Dual 2-ohm Car Subwoofer
Quantity: 1

Product Details:

  • 8" Dual 2 ohm R2 Series Subwoofer
  • Power Handling:
    • Peak: 1000 watts
    • RMS: 350 watts
  • Kevlar Reinforced Pulp Paper Cone
  • High-Amplitude Multi-Roll (HAMR) Surround
  • 1.6" High Temperature Voice coil
  • 12 mm Xmax
  • 56 oz. Double Stacked Ferrite magnet motor structure
  • Frequency Response: 30 - 200 Hz
  • Resonance Frequency (Fs): 42 Hz
  • Sensitivity: 83.6 dB
  • Recommended sealed box volume: .15 cubic feet - .45 cubic feet
  • Recommended ported box volume: .25 cubic feet - .70 cubic feet
  • Top-mount depth: 4.56"
  • Cutout diameter: 6.91"
  • Authorized Internet Dealer
  • Subwoofer grille Alpine KTE-8G optional (sold separately)
  • 1-year Manufacturer's Warranty

  • Priced Individually

PDF IconAlpine R2W8D2 owner’s manual

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Specifications & Details


Subwoofer Specifications
Series
R2 Series
Subwoofer Size
8"
RMS Power Handling
350 watts
Peak Power Handling
1000 watts
Woofer Composition
Kevlar Reinforced Pulp Paper
Woofer Surround
High-Amplitude Multi-Roll (HAMR)
Sensitivity
83.6 dB
Frequency Response
30 - 200 Hz
Subwoofer Design
Round / Circle
Enclosure Specifications
Box Type
Sealed
Number of Subwoofers
1
Box Style/Shape
Square/Rectangle
Wood Thickness
3/4"
Number of Terminals
1
Terminal Type
Binding posts (banana clip ready)
Box Exterior Color
Black
Box Finish
Carpet
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Item Details


Manufacturer:

NVX

Model Number:

NE81S_R2W8D2

Weight:

37.50lbs

Internal SKU:

ne81s_r2w8d2

Internal Product ID:

229078

Customer Ratings & Reviews


NVX NE81S w/ Alpine R2-W8D2 thumbnail image

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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.