Garage
Shop

See all parts that fit your 2016 Promaster 3500

NVX NE81P w/ Alpine S2-W8D4

Single 8" Slot Ported 3/4" MDF Black Carpeted Subwoofer Enclosure – 0.75 Cu. Ft. with Polyfil and NVX Logo w/8" S-Series Dual 4-ohms Car Subwoofer

NVX
Shop all NVX
Lowest price in 30 days
highlight-star-icon

• 8" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: .75 cubic feet
• Premium Black Carpet with Black NVX Logo

Learn more about the ne81p_s2w8d4
Universal fit Icon

Universal – fits most vehicles.

Similar items | Update vehicle | Vehicle store
List price $339.99
Thanks , You Pay:
-33%

$227.94

 with warranty
Starting at $21/mo or 4 payments of $57 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.

shipping truck icon Free shipping in USA. Provide zip for delivery date.
Quantity
In Stock
Brand new

Buy it now


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

Loading...
BV850ACP main

Boss Elite BV850ACP

6.75" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto with Backup Camera

5
Limited time!
46CSC654 main

Kicker CSC65 (46CSC654)

600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers

122
-33.36%

$79.96

List price $119.99

iLX-W650 main

Alpine iLX-W650

7" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay and Android Auto (SiriusXM Ready)

124
-5.72%

$329.95

List price $349.95

DMH-1800NEX main

Pioneer DMH-1800NEX

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto, and SiriusXM Ready

2
-16.67%

$349.99

List price $420.00

DMH-W4660NEX main

Pioneer DMH-W4660NEX

6.8" Double DIN Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay, and Android Auto (SiriusXM Ready)

2
-20.00%

$599.99

List price $750.00

43DSC6504 main

Kicker DSC650 (43DSC6504)

480W Peak (120W RMS) 6.5” DS Series 2-way 4-ohm Coaxial Car Speakers (DSC6504)

28
-10.53%

$84.99

List price $94.99

BMV62W main

Belva BMV62W

6.2" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto and Phone Mirroring

28
-66.67%

$89.99

List price $269.99

DB652 main

Polk Audio DB652 (DB 652)

600W Peak (200W RMS) 6.5" DB+ Series 2 Way Coaxial 4-ohm Car, Marine and Powersports Speakers

12
-9.16%

$109.00

List price $119.99

Limited time!
Club 622 main

JBL Club 622

360W Peak (120W RMS) 6.5" Club Series 2-way Coaxial 3-ohm Speakers

5
-28.58%

$99.95

List price $139.95

CV15BT main

Cerwin-Vega CV15BT

Single Din Digital Media Receiver with Bluetooth

3

Description


NVX brand icon

Authorized dealer

NVX NE81P

Single 8" Slot Ported 3/4" MDF Black Carpeted Subwoofer Enclosure – 0.75 Cu. Ft. with Polyfil and NVX Logo
Quantity: 1

Product Details:

  • Not compatible with NVX VC-Series Subwoofers
  • 8" Single Ported 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: .75 cubic feet
  • Port Tuning Frequency (Fb): 38 Hz
  • Dimensions: 15.25" D x 15.00" W x 11.50" H
  • Authorized Internet Dealer
  • 1-year Sonic Electronix Warranty

Port Specifications:

  • Tuning Frequency: 38 Hz
  • Port Width: 1"
  • Port Height: 10"
  • Port Length: 21"

Alpine S2-W8D4

900W Peak (300W RMS) 8" S-Series Dual 4-ohm Car Subwoofer
Quantity: 1

Product Details:

  • 8" Dual 4 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): 47.9 Hz
  • Sensitivity: 82.7 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 S2W8D4 owner’s manual

Best selling similar products

P3-2X12 small

Rockford Fosgate Punch P3 P3-2X12

• Dual Punch P3 12" Loaded Subwoofer Enclosure
• 2400W Peak
• 1200W RMS
• Constructed with Durable 5/8" MDF
• High Current Binding Posts
• Durable Black Carpet Covering
• Computer Optimized Design
• 1 Ohm Final Impedance

(40)

$709.99

List price $947.99

DL7R122 small

Kicker DL7R122 (45DL7R122)

• Ported enclosure with 2 12" Solo-Baric L7R Series Subwoofer
• 1200 watts RMS (2400 watts Peak)
• Final Impedance: 2-ohm
• Dimensions: 33-3/4" L x 15-7/8" H x 15-1/4" W x 20-3/8" W2

(8)

$519.96

List price $699.99

CP112-W0v3 small

JL Audio BassWedge CP112-W0v3

• 600W Peak
• 300W RMS
• Top-Quality MDF Construction
• Durable Dark Gray Carpet Finish
• Five-Way Binding Post Connectors
• Embroidered JL Audio Logo

(12)

$279.99

List price $279.99

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
82.7 dB
Frequency Response
23 - 215 Hz
Subwoofer Design
Round / Circle
Enclosure Specifications
Box Type
Ported
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:

NE81P_S2W8D4

Weight:

33.00lbs

Internal SKU:

ne81p_s2w8d4

Internal Product ID:

229085

Customer Ratings & Reviews


NVX NE81P w/ Alpine S2-W8D4 thumbnail image

5 star
50%
4 star
50%
3 star
0%
2 star
0%
1 star
0%



Durability
0
Value
0
Features
0
Design
0
Usability
0

Customer Reviews

Sort by:

Loading...
This item does not have any detailed reviews, but has 2 ratings from customers


Amphitheater IK5BTL small

Kicker IK5BTL Amphitheater with Bluetooth, Lightning Dock, USB & Aux Input (41IK5BTL)

Wireless Bluetooth Lightning iPod, iPhone & iPad Docking Home Stereo Speaker System w/Built-In Subwoofer

(6)

$219.95

List price $219.95

LBTS2W_IE3RC small

Limitless Creations LBTS2W (Mini Radiant) + NVX IE3RC (Sunset Orange)

Portable Bluetooth Speaker w/ A2DP Function + In-Ear Headphones w/ Removable Cable, One-button in-line Microphone for iPhone/Android

(28)

$34.98

List price $149.98

07-18-JEEP-WRANGLER-FD-ALP small

Alpine E Series Knee Panel Speaker Replacement Package

Fits select 2007-2017 Wrangler

(77)

$96.93

List price $124.98

iBT16LC small

iHome iBT16LC (Blue)

Rubberized Bluetooth Mini Cube

(1)

$18.99

List price $59.99

CX-CD241-2 small

Coby CX-CD241 (CXCD241SVR) Portable AM/FM Radio CD Player - Silver

Portable CD Player with AM/FM Radio Stereo Tuner

$30.99

List price $38.99

iBT16QC small

iHome iBT16QC (Green)

Durable Rubberized Portable Bluetooth Mini Cube Speaker System with 3.5mm Mini Jack Auxiliary Input

$24.99

List price $59.99

TS-D160R small

Pioneer TS-D160R 6-1/2"

(2)

$92.99

List price $179.99

Sonic Waves (Blue) iSound-5304 small

iSound ISOUND-5304 Sonic Waves (Blue)

Portable Bluetooth Speaker System & Speakerphone with Built-In Microphone

$47.99

List price $79.99

iSound-5318 small

iSound 5318 Fire Waves (Red)

Color Changing Rechargeable Portable Bluetooth Speaker and Speakerphone with Vacuum Bass Design

$22.99

List price $39.99

Related Searches


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

2016 Ram Promaster 3500

2016 Ford Expedition

2002 BMW M5

2014 Honda Pilot

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.