Garage
Shop

See all parts that fit your 2013 Regal

NVX NE81S w/ Alpine S2-W8D2

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

NVX
Shop all NVX
Limited time!
Out of stock
highlight-star-icon

• 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_s2w8d2
Universal fit Icon

Universal – fits most vehicles.

Similar items | Update vehicle | Vehicle store
2026-07-27 11:08:20
List price $315.99
Thanks , You Pay:
-32%

$215.94

 with warranty
Starting at $20/mo or 4 payments of $54 Buy now, pay later and installment payment plans are offered by Afterpay and Affirm. Learn more

Heads up

Your vehicle can use this product in multiple locations. Only a quantity of one can be selected from the product page. You will have the option to adjust the quantity within your cart.

Purchase $400 or More of NVX and Save 15%!
Quantity
Out of stock - Order risk-free, cancel any time.
Brand new

Acima Logo

No Credit Option

Flexible Lease Payments

Early Purchase Options

Quick Approval Decision

Extend logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Hassle-free immediate replacement within minutes!
  • Easy online claims 24/7
  • Covers product breakdowns and failures
Swoosh Icon Icon of Swoosh

For over 25 years, we've been your X-Factor – the team dedicated to having the biggest impact on your shopping experience!

Award winning icon
Award-Winning Service
Shipping icon
FREE Shipping Orders $49+
60 days return policy icon
60-Day Easy Returns
lowest price guarantee icon
Guaranteed Lowest Price
inHouseExpert
In-House Experts
NVX - Worth the Envy - Direct to Consumer Car Audio

Loading...
72-4572 main

Metra 72-4572

Install New Speakers in select 2006-2024 vehicles from Chevrolet, GMC, Cadillac

36
-6.67%

$13.99

List price $14.99

Lowest price in 30 days
VSPTW main

NVX VSPTW

450W Peak (150W RMS) 1" V-Series Silk Dome Tweeters with External Crossovers

29
-16.67%

$49.99

List price $59.99

Limited time!
46CSC6934 main

Kicker CSC693 (46CSC6934)

900W Peak (300W RMS) 6x9” CS Series 3 Way Coaxial 4-ohm Speakers with Integrated Midrange Speakers

40
-30.02%

$111.96

List price $159.99

P1692 main

Rockford Fosgate Punch P1 P1692

300W Peak (150W RMS) 6x9" Punch Series 2 Way Coaxial 4-ohm Speakers

82
ESP69 main

NVX ESP69

480W Peak (160W RMS) 6x9" E-Series 2 Way Coaxial Car Speakers

6
-16.67%

$54.99

List price $65.99

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 S2-W8D2

900W Peak (300W RMS) 8" S-Series Dual 2-ohm Car Subwoofer
Quantity: 1

Product Details:

  • 8" Dual 2 ohm S Series Subwoofer
  • Power Handling:
    • Peak: 900 watts
    • RMS: 300 watts
  • Carbon Fiber Polypropylene Cone
  • Parabolic cone structure construction
  • High-Amplitude Multi-Roll (HAMR) Surround
  • Polypropylene ceramic dust cap
  • Twist-lock grille system with no patent
  • High strength steel frame for added durability
  • Perimeter venting with airflow management system
  • Compound radius curve extended pole geometry
  • Airflow optimized dual flare pole vent
  • Progressive spider with reinforced layer tinsel leads
  • 1.4" High Temperature Copper Voice coil
  • 5-layer voice coil winding on aluminum former
  • High-excursion underhand voice coil configuration
  • 8-gauge push terminals with VC configuration jumpers
  • 13 mm Xmax
  • 34 oz. Double Stacked Ferrite magnet motor structure
  • Frequency Response: 23 - 215 Hz
  • Resonance Frequency (Fs): 46.5 Hz
  • Sensitivity: 82.6 dB
  • Recommended sealed box volume: 0.15 cubic feet - 0.50 cubic feet
  • Recommended ported box volume: 0.35 cubic feet - 0.70 cubic feet
  • Top-mount depth: 3.71"
  • Cutout diameter: 6.85"
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Individually

PDF IconAlpine S2W8D2 owner’s manual

Loading...
Limited time!
46CSC6934 main

Kicker CSC693 (46CSC6934)

900W Peak (300W RMS) 6x9” CS Series 3 Way Coaxial 4-ohm Speakers with Integrated Midrange Speakers

40
-30.02%

$111.96

List price $159.99

SXE-6926S main

Alpine SXE-6926S

280W Peak (90W RMS) 6x9” SXE Series 2-way 4-ohm Coaxial Speakers

13
-20.84%

$56.99

List price $71.99

Club 322F main

JBL Club 322F (SPKCB322FAM)

150W Peak (50W RMS) 3.5" Club Series 2 Way Coaxial 3-ohm Speakers

1
-27.29%

$79.95

List price $109.95

R169X2 main

Rockford Fosgate Prime R169X2

260W Peak (130W RMS) 6x9" Prime Series 2 Way Coaxial 4-ohm Speakers

49
REF697F main

Infinity REF697F (INFSPKRF697FUS)

600W Peak (200W RMS) 6x9" Reference Series 2-Way Coaxial 4-ohm Speakers

6
-17.65%

$139.95

List price $169.95

PNW-69CS2 main

AudioControl PNW-69CS2

250W RMS 6x9″ PNW Series 2-way 3-ohm Component Speaker System

1
-5.42%

$349.00

List price $369.00

TERMINATOR69 main

MTX Audio TERMINATOR69

240W Peak (120W RMS) 6x9" Terminator Series 2 Way Coaxial 4-ohm Speakers

1
-11.12%

$79.95

List price $89.95

NSP69 main

NVX NSP69

900W Peak (300W RMS) 6x9" N-Series 2 Way Coaxial Car Speakers

53
-16.67%

$89.99

List price $107.99

REF697CF main

Infinity REF697CF (INFSPKRF697CFUS)

750W Peak (250W RMS) 6x9" Reference Series 2-Way 3-ohm Component Speaker System

-9.68%

$279.95

List price $309.95

V69C main

Cerwin-Vega V69C

960W Peak (320W RMS) 6x9" Vega Series 2025 Edition 2-Way Component 4-ohm Speaker System


This product is temporarily out of stock. May we recommend...

TNE212D small

MTX Audio TNE212D

• Sealed enclosure with 2 12" Terminator Series Subwoofer
• 200 watts RMS each
• Final Impedance: 2-ohm
• Dimensions: 29.63" L x 14" H x 13.5" W

(32)

$219.95

List price $249.95

EN-DF10A small

DS18 EN-DF10A

• 10" Amplified Loaded Subwoofer System
• 250 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost: 0dB to 12dB
• Speaker-Level Inputs

$359.95

List price $359.95

49DL7TDF122 small

Kicker DL7TDF122 (49DL7TDF122)

• Sealed enclosure with 2 12" Solo-Baric L7T Series Subwoofer
• 1200 watts RMS Power
• Final Impedance: 2-ohm
• Dimensions: 38-3/16" L x 8-1/4" H x 17-1/8" W

(1)

$749.99

List price $849.99

R2S-1X10 small

Rockford Fosgate Prime R2S-1X10

• Sealed truck enclosure with 1 10" Prime R2 Series Subwoofer
• 200 watts RMS (400 watts Peak)
• Final Impedance: 2-ohm
• Dimensions: 19" L x 13.5" H x 5.25" W x 3.25" W2

(17)

$239.99

List price $239.99

CLS113RG-W7AE small

JL Audio CLS113RG-W7AE

• ProWedge 13" W7AE Loaded Sealed Subwoofer Enclosure
• 3000W Peak
• 1500W RMS
• 3 Ohm Final Impedance
• High Grade Black Carpet Finish
• Engraved JL Audio and W7 Logos
• Rear Firing Design
• 10th Anniversary Edition W7 Subwoofer

(8)

$2299.99

List price $2299.99

BE-TOYCAM-G8 small

NVX Loaded BOOST Box - 2018-2024 Toyota Camry - BE-TOYCAM-G8

• Sealed BOOST enclosure with 1 10" N Series Subwoofer
• Fits select 2018-2025 Camry Hybrid and Camry
• 500 watts RMS (1000 watts Peak)
• Final Impedance: 2-ohm

$299.99

List price $374.99

BE-TSLAY-G1P small

NVX Loaded BOOST Box - 2020-2023 Tesla Model Y - BE-TSLAY-G1P (Passenger's Side)

• Sealed BOOST enclosure with 1 10" N Series Subwoofer (Passenger Side)
• Fits select 2020-2023 Model Y (5-seat models only)
• 500 watts RMS (1000 watts Peak)
• Final Impedance: 2-ohm

(2)

$279.99

List price $562.99

49L7TDF122 small

Kicker L7TDF122 (49L7TDF122)

• Sealed truck enclosure with 1 12" Solo-Baric L7 Series Subwoofer
• 300-600 watts RMS Power Rating
• Final Impedance: 2-ohm
• Dimensions: 23 7/8" L x 6 1/2" H x 15" W

(5)

$399.99

List price $429.99

TRTP122 small

Kicker TRTP122 (48TRTP122)

• Sealed truck enclosure with 2 12" CompRT Series Subwoofer
• 250-500 watts RMS Power Rating
• Final Impedance: 2-ohm
• Dimensions: 27 1/2" L x 6 1/8" H x 14 5/8" W

(4)

$349.99

List price $379.99

R2S-1X12 small

Rockford Fosgate Prime R2S-1X12

• Sealed truck enclosure with 1 12" Prime R2 Series Subwoofer
• 250 watts RMS (500 watts Peak)
• Final Impedance: 2-ohm
• Dimensions: 27.375" L x 13.5" H x 3.25" W x 5.25" W2

(10)

$259.99

List price $259.99

Specifications & Details


Subwoofer Specifications
Series
S Series
Subwoofer Size
8"
RMS Power Handling
300 watts
Peak Power Handling
900 watts
Woofer Composition
Polypropylene
Woofer Surround
High-Amplitude Multi-Roll (HAMR)
Sensitivity
82.6 dB
Frequency Response
23 - 215 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_S2W8D2

Weight:

23.00lbs

Internal SKU:

ne81s_s2w8d2

Internal Product ID:

229080

Customer Ratings & Reviews


NVX NE81S w/ Alpine S2-W8D2 thumbnail image

5 star
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
5
Value
5
Features
5
Design
5
Usability
5

Customer Reviews

Sort by:

Loading...

Exactly what id expect from alpine

The following review is for S2-W8D2, which is a part of the bundle you are viewing.

Preforms very well in a single cab 02 sonoma, the box is from an 02 spec v and is powered by a crunch amp. Very powerful punches and sound from such a small sub

By vincent on June 8, 2024 Checkmark Icon Verified purchase

8 found this helpful


The following review is for NE81S, which is a part of the bundle you are viewing.
By Todd on March 20, 2026 Checkmark Icon Verified purchase




LC-4.800, XKIT44 small

AudioControl LC-4.800 with NVX 4 Gauge Amp Wiring Kit

High-Power 4/3/2 Channel Amplifier with AccuBass

(84)

$549.00

List price $1144.99

JL-FD-LRv2 small

DS18 JL-FD-LRv2 (Sold by Pair)

Empty Single 6.5" Front Door Speaker Panels for select 2018-2023 vehicles from Jeep

$191.95

List price $191.95

70-7004 small

Metra 70-7004 Wiring Harness

Install a new car stereo and retain factory amplifier in select 1992-2012 vehicles from Mitsubishi, Eagle, Dodge

$23.99

List price $26.99

82-1011 small

Metra 82-1011 Speaker Mounting Bracket

Speaker Adapter to Install 4x6" Speakers into Factory Speaker Location for select 1997-2006 Wrangler and Wrangler Unlimited

(2)

$14.99

List price $32.99

SBK926 small

American International SBK926

Single DIN or Double DIN Stereo Dash Kit for select 2008-2014 vehicles from Subaru

(1)

$12.99

List price $44.00

ToyK989 small

American International ToyK989

Single DIN or Double DIN Stereo Dash Kit for select 2008-2012 Highlander Hybrid and Highlander

$28.99

List price $64.00

97-04-chevy-corvette-rsspkg small

NVX Rear N-Series Speaker Upgrade Kit for 1997-2004 Chevy Corvette

Pair of 6.5" NVX N-Series Speaker Upgrade Kit with Metra Harnesses | Fits select 1997-2004 Corvette

(93)

$79.98

List price $120.98

XMD-WHTAIC2-1.5 small

JL Audio XMD-WHTAIC2-1.5 White 2-Channel RCA Cable

1.5 ft (0.46 m) Two-Channel Marine / Motor-Sports / Car -Audio RCA Audio Interconnect Cable

(5)

$24.99

List price $24.99

KiaK1245 small

American International KiaK1245

Single DIN or Double DIN Stereo Dash Kit for select 2014-2016 Optima and Optima Hybrid

$19.99

List price $59.00

Related Searches


Save up to 10 different vehicles in your garage
Vehicle
Store
Delete

2013 Buick Regal

2015 GMC Canyon

2007 Lincoln MKZ

1990 Ford Bronco II

2009 Jeep Commander

2004 Isuzu Rodeo

1998 Chevrolet Corvette

1992 BMW 735iL

1997 Ford Aspire

2014 Audi S4

Add vehicle Clear all vehicles
Where to find vehicle info
Are you sure you want to clear your garage?
This action cannot be undone. Confirm
This page was not designed for products.
If you continue, you will be redirected to a category customized for your vehicle. Continue
Loading...
Identify your vehicle and submodel details
  • Owner's manual
  • Vehicle's insurance card
  • Vehicle registration
  • Vehicle produced after 2005: Inside driver's side door
  • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
Car Info Side Door Icon
Vehicle Registration Icon
Vehicle Insurance Icon

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.