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NVX NE121P w/ Infinity Reference 1200S

Single 12" Slot Ported 3/4" MDF Black Carpeted Subwoofer Enclosure – 1.75 Cu. Ft. with Polyfil and NVX Logo w/12" Reference Series Single 2-or 4-ohm Shallow Car 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_ref1200s
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2026-07-27 11:08:20
List price $299.94
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$199.93

 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"

Infinity Reference 1200S (REF1200S)

1000W Peak (250W RMS) 12" Reference Series Single 2-or 4-ohm Shallow Car Subwoofer
Quantity: 1

Product Details:

  • 12" Single 2 or 4 ohm Reference Series Subwoofer
  • Power Handling:
    • Peak: 1000 watts
    • RMS: 250 watts
  • Polypropylene Cone
  • Rubber Surround
  • Harman-proprietary SSI (Selectable Smart Impedance)
  • OEM-level reliability testing
  • 2" High Temperature Voice coil
  • 7.65 mm Xmax
  • Frequency Response: 27 - 175 Hz
  • Resonance Frequency (Fs): 22.82 Hz
  • Sensitivity: 92 dB
  • Recommended sealed box volume: 0.6 cubic feet - 1.04 cubic feet
  • Recommended ported box volume: 1.3 cubic feet - 2.1 cubic feet
  • Top-mount depth: 3.25"
  • Cutout diameter: 11.125"
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Individually


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Specifications & Details


Subwoofer Specifications
Series
Reference Series
Subwoofer Size
12"
RMS Power Handling
250 watts
Peak Power Handling
1000 watts
Woofer Composition
Polypropylene
Woofer Surround
Rubber
Sensitivity
92 dB
Frequency Response
27 - 175 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:

NE121P_REF1200S

Weight:

42.80lbs

Internal SKU:

ne121p_ref1200s

Internal Product ID:

229131

Customer Ratings & Reviews


NVX NE121P w/ Infinity Reference 1200S thumbnail image

5 star
70%
4 star
20%
3 star
10%
2 star
0%
1 star
0%



Durability
4.5
Value
4.9
Features
4.7
Design
4.8
Usability
4.5

Customer Photos & Videos


Customer Reviews

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Slim subs big bass best bang for the buck.

The following review is for Reference 1200S, which is a part of the bundle you are viewing.

I would absolutely recommend Infinity Reference REF1200s they require less than a cubic foot of air space. I am very impressed with these subs, the box I have them mounted in is 4.5" wide. They bump very hard I love them. I have them set at 4 ohms on a 250 watt rms amp. They do exactly what I was hoping for. Great value great product. I was skeptical of slim subs in general but being that I have a crew cab Silverado I had limited space to work with. The mirror actually vibrates and I can feel the bass hit. More than I expected for sure.

By Travis on August 14, 2017 Checkmark Icon Verified purchase

42 found this helpful


Great Subwoofer

The following review is for Reference 1200S, which is a part of the bundle you are viewing.

This subwoofer hits harder than I thought it would. I was looking for great overall sound, not overkill. This subwoofer worked out perfect for my application.

By Justin on March 30, 2018

42 found this helpful


Great subwoofers

The following review is for Reference 1200S, which is a part of the bundle you are viewing.

These subs sound amazing. They shake the truck and hit hard. For shallows I am extremely impressed. 2 12" with a JL 500 watt amp matches them perfectly. Would recommend for awesome sound.

By Jacob on August 25, 2017 Checkmark Icon Verified purchase

37 found this helpful


Perfection

The following review is for Reference 1200S, which is a part of the bundle you are viewing.

Running em on 4ohms in my 2020 F150, fits snug under my seats. Pleasantly surprised! Very affordable and gets the job done for what I’m looking for.

By Terrance on March 13, 2023 Checkmark Icon Verified purchase

34 found this helpful


Impressed

The following review is for Reference 1200S, which is a part of the bundle you are viewing.

Bought 2 of these to out in my buddies s-10 ran about 300 watss to each and was very impressed the reviews I read doesn't do them any justice.... Definitely a good buy for limited space

By Rocky on May 8, 2017 Checkmark Icon Verified purchase

35 found this helpful


Solid sub

The following review is for Reference 1200S, which is a part of the bundle you are viewing.

Good sound and doesn't require alot of power, but most importantly to me fits nicely under back seat of my double cab tundra.

By Aaron on May 29, 2016 Checkmark Icon Verified purchase

33 found this helpful


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


Very excited to install!

The following review is for Reference 1200S, which is a part of the bundle you are viewing.

Got the 1200s, arrived in perfect condition and on time. Will be installed with Kicker 400.1. Will update after install

By Scott on January 4, 2026 Checkmark Icon Verified purchase




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