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NVX NE121P w/ Sundown Audio SW-EV412D2

Single 12" Slot Ported 3/4" MDF Black Carpeted Subwoofer Enclosure – 1.75 Cu. Ft. with Polyfil and NVX Logo w/ 500W RMS 12" E Series Dual 2-ohm Subwoofer

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• 12" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: 1.75 cubic feet
• Premium Black Carpet with Black NVX Logo

Learn more about the ne121p_ev412d2
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2026-07-27 11:08:20
List price $413.98
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$354.55

 with warranty
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Description


NVX brand icon

Authorized dealer

NVX NE121P

Single 12" Slot Ported 3/4" MDF Black Carpeted Subwoofer Enclosure – 1.75 Cu. Ft. with Polyfil and NVX Logo
Quantity: 1

Product Details:

  • Not compatible with NVX VC-Series Subwoofers
  • 12" 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: 13-7/8"
  • Subwoofer cutout diameter: 11-7/32"
  • Internal box volume: 1.75 cubic feet
  • Dimensions: 16.50" D x 20.00" W x 16.00" H
  • Authorized Internet Dealer
  • 1-year Sonic Electronix Warranty

Port Specifications:

  • Tuning Frequency: 38 Hz
  • Port Width: 1.5"
  • Port Height: 14.50"
  • Port Length: 17.52"

Sundown Audio E12 v.4 D2 12" (E12V4D2)

1500W Peak (750W RMS) 12" E Series Dual 2-ohm Car Subwoofer (SW-EV412D2)
Quantity: 1

Product Details:

  • 12" Dual 2 ohm E-Series Subwoofer
  • Power Handling:
    • Peak: 1500 watts
    • RMS: 750 watts
  • Pressed Paper Cone
  • Pressed Foam Surround
  • Optimized for ported enclosures (sealed not recommended)
  • Vented magnetic gap and pole piece for superior cooling
  • High strength stamped steel frame added durability
  • High temperature 4-layer copper voice coil wire
  • High quality push terminals for easy installation
  • Stitched-on mini-XL tinsel leads
  • 2.5" High Temperature Copper Voice coil
  • 14 mm Xmax
  • Double Stacked magnet motor structure
  • Resonance Frequency (Fs): 28.480 Hz
  • Sensitivity: 85.7 dB
  • Recommended ported box volume: 1.75 cubic feet
  • Top-mount depth: 6.50"
  • Cutout diameter: 11.125"
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Individually


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Specifications & Details


Subwoofer Specifications
Series
E-Series
Subwoofer Size
12"
RMS Power Handling
500 watts
Sensitivity
85.7 dB
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:

NE121P_EV412D2

Weight:

50.20lbs

Internal SKU:

ne121p_ev412d2

Internal Product ID:

228906

Customer Ratings & Reviews


NVX NE121P w/ Sundown Audio SW-EV412D2 thumbnail image

5 star
33%
4 star
33%
3 star
33%
2 star
0%
1 star
0%



Durability
3.5
Value
5
Features
5
Design
5
Usability
4

Customer Photos & Videos


Customer Reviews

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Nice box. And pairs good with NVX sub

The following review is for NE121P, which is a part of the bundle you are viewing.

Sounds Good. Hits hard. Couldn't ask for more from one 12.

By Nicholas on June 14, 2026 Checkmark Icon Verified purchase
2006 Chevrolet Tahoe


Nice sounding box but abit tall.

The following review is for NE121P, which is a part of the bundle you are viewing.

Great sturdy box, carpeting was nicest done only thing i disliked about it was its hight it too tall my trunk is 14.75. But this thing is 16" tall had to cuz the foam that was under the mat to make it barely fit and also re.oved the back seat...it was worth it though, im running a rf-p3d2 12"

By robinson on February 27, 2026 Checkmark Icon Verified purchase
2023 Toyota GR86


The following review is for NE121P, which is a part of the bundle you are viewing.
By Austin on February 26, 2026 Checkmark Icon Verified purchase
2010 Honda Odyssey




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