Garage
Shop

See all parts that fit your 2008 Jetta

NVX NE122S w/ Sundown Audio SML 12" D4

Dual 12" Sealed 3/4" MDF Black Carpeted Subwoofer Enclosure – 2.0 Cu. Ft. with Polyfil and NVX Logo w/ 500W RMS 12" SML Series Dual 4-ohm Shallow Car Subwoofer

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

• 12" Dual Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: 2.00 cubic feet
• Premium Black Carpet with Black NVX Logo

Learn more about the ne122s_sml12d4
Universal fit Icon

Universal – fits most vehicles.

Similar items | Update vehicle | Vehicle store
2026-07-27 11:08:20
List price $731.97
Thanks , You Pay:
-14%

$629.97

 with warranty
Starting at $57/mo with

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...
40-VW10 main

Metra 40-VW10 Antenna Adapter

Connect your factory antenna to a new aftermarket radio for select 1973-2025 vehicles from Audi, Mercedes-Benz, Volkswagen

22
-33.36%

$7.99

List price $11.99

DKVW-52 main

Crux DKVW-52 Dash Kit

Install a new Double-DIN or Single-DIN car stereo in select 2002-2014 vehicles from Volkswagen (Matte Black)

2
-35.71%

$164.70

List price $256.20

SOCVW-21 main

CRUX SOCVW-21 Wiring Interface

Install new car stereo and retains accessory power and other factory features in select 2002-2014 vehicles from Volkswagen

5
-35.71%

$75.60

List price $117.60

UTE-73BT main

Alpine UTE-73BT

Single DIN Digital Media Receiver with Bluetooth

44
-16.69%

$149.95

List price $180.00

VSP65KIT main

NVX VSP65KIT

750W Peak (250W RMS) 6.5" V-Series 2 Way Component Car Speakers

84
-16.67%

$119.99

List price $143.99

DPX305MBT main

Kenwood DPX305MBT

Double DIN Digital Media Receiver with Bluetooth and Built-in Alexa (SiriusXM Ready)

15
-20.50%

$159.00

List price $200.00

460BRGB main

Boss Elite 460BRGB

Single DIN Digital Media Receiver with Bluetooth (Black)

8
Stage3 427F main

JBL Stage3 427F (STAGE3427FAM)

300W Peak (60W RMS) 4" Stage3 Series 2-Way Coaxial 3-ohm Car Speakers

3
-22.23%

$69.95

List price $89.95

DMX125BT main

Kenwood DMX125BT

6.75" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth

4
-26.30%

$199.00

List price $270.00

TS-T110 main

Pioneer TS-T110

240W Peak (80W RMS) 7/8-Inch Hard-Dome Tweeters (Pair)

43
-9.09%

$50.00

List price $55.00

Description


NVX brand icon

Authorized dealer

NVX NE122S

Dual 12" Sealed 3/4" MDF Black Carpeted Subwoofer Enclosure – 2.0 Cu. Ft. with Polyfil and NVX Logo
Quantity: 1

Product Details:

  • Not compatible with NVX VC-Series Subwoofers
  • 12" Dual 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: 10-1/8"
  • Subwoofer cutout diameter: 11-7/32"
  • Internal box volume: 2.00 cubic feet
  • Dimensions: 13.50" D x 27.00" W x 15.00" H
  • Authorized Internet Dealer
  • 1-year Sonic Electronix Warranty

Sundown Audio SML-12 D4 12" (SML12D4)

1200W Peak (600W RMS) 12" SML Series Dual 4-ohm Shallow Car Subwoofer (SW-SML12D4)
Quantity: 2

Product Details:

  • 12" Dual 4 ohm SML Series Shallow Subwoofer
  • Power Handling:
    • Peak: 1200 watts
    • RMS: 600 watts
  • Pressed Paper Cone
  • Pressed Foam Surround
  • Custom tooled cone shape for reduced noise over high excursion
  • Stitched-on “Mini-XL” tinsel Leads to prevent fatigue and failure
  • Vented pole-piece and vented magnetic gap
  • Dual-magnet design for smooth acoustic response
  • 2.5" High Temperature Copper Voice coil on black aluminum former
  • High temperature 4-layer copper voice coil wire
  • 14 mm Xmax
  • Double Stacked magnet motor structure
  • Bolt-through motor design to ensure maximum longevity
  • Resonance Frequency (Fs): 39.905 Hz
  • Sensitivity: 86.7 dB
  • Recommended sealed box volume: 0.75 cubic feet - 1.0 cubic feet
  • Recommended ported box volume: 1.25 cubic feet - 1.75 cubic feet
  • Top-mount depth: 4.45"
  • Cutout diameter: 10.74"
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Individually


Loading...
DMH-1800NEX main

Pioneer DMH-1800NEX

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

3
-19.05%

$339.99

List price $420.00

Limited time!
46CSC654 main

Kicker CSC65 (46CSC654)

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

124
-33.36%

$79.96

List price $119.99

UTE-73BT main

Alpine UTE-73BT

Single DIN Digital Media Receiver with Bluetooth

44
-16.69%

$149.95

List price $180.00

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
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

Limited time!
DMH-W3050NEX main

Pioneer DMH-W3050NEX

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay and Android Auto, and Built-in Alexa (Sirius XM Ready)

1
-24.20%

$469.99

List price $620.00

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

XED62 main

Cerwin-Vega XED62

600W Peak (70W RMS) 6.5" XED Series 2-Way Coaxial 4-ohm Speakers

15
-16.67%

$49.99

List price $59.99

PNW-65CS2 main

AudioControl PNW-65CS2

250W Peak (200W RMS) 6.5″ PNW Series 2 Way Component 3-ohm Speakers

4
-5.90%

$319.00

List price $339.00


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
SML Series
Subwoofer Size
12"
RMS Power Handling
500 watts
Sensitivity
86.7 dB
Subwoofer Design
Round / Circle
Enclosure Specifications
Box Type
Sealed
Number of Subwoofers
2
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:

NE122S_SML12D4

Weight:

68.60lbs

Internal SKU:

ne122s_sml12d4

Internal Product ID:

228900

Customer Ratings & Reviews


NVX NE122S w/ Sundown Audio SML 12

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



Durability
4
Value
5
Features
4
Design
5
Usability
4

Customer Reviews

Sort by:

Loading...

Nice box, but?

The following review is for NE122S, which is a part of the bundle you are viewing.

This box sounds awesome with my NVX subwoofers. I had to reflue the poly inside the box because not enough glue from production. Also, the terminals are cheap. Replacement is recommended. All that aside this box hits hard with the optimal manufacturers recommended air space. I replaced some CT Sounds 1250 rms Stratos off a 2000.1D CT amps. They couldn't even keep up, even with thier amps.alway bottomed out. I put the NVX3s in A NVX box with the specs. Night and DAY. These subwoofers just my be better than the JL W7. By the way the CT Sounds are in a custom box .

By Richard on December 17, 2025 Checkmark Icon Verified purchase

1 found this helpful


The following review is for NE122S, which is a part of the bundle you are viewing.
By John on January 18, 2026 Checkmark Icon Verified purchase
2014 Honda Accord




98-02-TOY-COR-SD-73BT small

1998-2002 Toyota Corolla Single DIN Bluetooth Front USB/AUX Stereo Upgrade

Includes In-Dash Car Stereo, Dash Kit and Harness

(142)

$183.93

List price $218.98

94-01-dod-r15-sdadeh small

1994-2001 Dodge RAM1500 Single DIN CD/Bluetooth Car Stereo Upgrade | Pioneer

Includes In-Dash Car Stereo, Dash Kit and Harness

(18)

$188.97

List price $219.98

NE101S_P2D210 small

NVX NE101S w/ Rockford Fosgate Punch P2 P2D2-10

Single 10" Sealed 3/4" MDF Black Carpeted Subwoofer Enclosure – 0.65 Cu. Ft. with Polyfil and NVX Logo w/10" Punch Series Dual 2-ohm Car Subwoofer

(15)

$215.98

List price $263.98

DEH-P5000UB small

Pioneer DEH-P5000UB

CD, MP3, WMA Receiver with Remote and uBus USB Connectivity for iPod/MP3 Players

(5)

$139.99

List price $219.99

94-01-dod-r15-sdamvh small

1994-2001 Dodge RAM1500 Single DIN Bluetooth Car Stereo Upgrade | Pioneer

Includes In-Dash Car Stereo, Dash Kit and Harness

(16)

$168.97

List price $199.98

NE102P_P2D410 small

NVX NE102P w/ Rockford Fosgate Punch P2 P2D4-10

Dual 10" Slot Ported 3/4" MDF Black Carpeted Subwoofer Enclosure – 2.90 Cu. Ft. with Polyfil and NVX Logo w/ 10" Punch Series Dual 4-ohm Car Subwoofer

(27)

$423.97

List price $515.97

NE81S_M1D28B small

NVX NE81S w/ Rockford Fosgate M1D2-8B

Single 8" Sealed 3/4" MDF Black Carpeted Subwoofer Enclosure – 0.45 Cu. Ft. with Polyfil and NVX Logo w/ 8" M1 Series Dual 2-ohm Marine Subwoofer

(1)

$287.98

List price $305.98

M6-770ETXv3-Gw-C-GwGw small

JL Audio M6-770ETXv3-Gw-C-GwGw

200W RMS 7.7" M6 Series 2 Way Marine Tower Speakers in Gloss White with Gloss White Classic Grilles

$1099.99

List price $1099.99

FEX10U small

MTX Audio Thunderform FEX10U (Black, Unloaded)

Unloaded Single 10" Custom-Fit Bass Slammer Subwoofer Enclosure for 1991-2001 Ford Explorer / Mercury Mountaineer

$349.95

List price $449.95

Related Searches


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

2008 Volkswagen Jetta

2005 Chrysler PT Cruiser

2010 Saturn Outlook

2003 Saab 9-3

2006 Ford E Series

1994 Honda Del Sol

1996 Oldsmobile Silhouette

2004 GMC Sierra 2500 HD

2002 Jaguar X-Type

2001 Chevrolet Tracker

Vehicle
Store
Delete

2003 Harley Davidson FLHTC/I Electra Glide Classic

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.