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NVX NE121P Empty Single 12" Vented Enclosure

Empty Single 12" Vented Subwoofer Enclosure with 3/4" MDF, Carpet Finish and Polyfill

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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
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$135.99

 with warranty
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Current Promotions (1 offer)


Get the most out of your Loaded Enclosure with the NVX SDTK20. Eliminates road noise, quiet vibrations, and increase the sound quality and output of audio system, 50%. Simply click the "Add Both to Cart" button. This offer cannot be combined with any other coupons or offers.

NVX NE121P Empty Single 12" Vented Enclosure

40% off


Priced separately $186 94

Promo Savings of $20 00

Total price:

$166 94

Product Highlights


• 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

Description


NVX brand icon

Authorized dealer

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"

Product history:

NVX NE121P thumbnail
(newest, current model)
Atrend 12SQV thumbnail
(previous model, replaced by NVX NE121P Empty Single 12" Vented Enclosure)
Ground Shaker SQP 1 12 thumbnail
(previous model, replaced by Atrend 12SQV)

Frequently Asked Questions (FAQ)


NE121P is great for peak SPL and room-shaking rumble. The ported slot releases air pressure and amplifies the low-end. This is ideal for large SUVs and trucks and when you want thunderous bass. However, if you want a tight bass, NE121S is the way to go.
Most likely not. For example, the NE121P has a generous mounting depth of up to nearly 14". That’s enough clearance for even the beefiest competition-grade magnets to breathe without slamming against the rear wall.
The slot port is tuned to 38Hz, which is the sweet spot for low-end extension. It uses the air inside the box to amplify the deepest notes, giving you that physical rumble that a sealed box just can't match at the same power level.
We don't recommend. NVX includes just enough to help the box act about 15-20% larger sound-wise. Adding too much can actually choke the sub's movement. Only add more if your sub's specs significantly exceed the box's actual internal volume.
It’s for durability and fitment. Sharp MDF corners under carpet are prone to bruising or chipping during installation. Rounded edges prevent the carpet from tearing and make it much easier to slide the box into tight trunk gaps.

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Specifications & Details


Box/Enclosure specifications
Subwoofer Size
12"
Subwoofer Cutout Shape
Round / Circle
Box Type
Ported
Number of Subwoofers
1
Box Style/Shape
Square/Rectangle
Cutout Diameter or Length
11-7/32"
Maximum Speaker Depth
13-7/8"
Total Box Volume
1.75 cubic feet
Wood Thickness
3/4"
Number of Terminals
1
Terminal Type
Binding posts (banana clip ready)
Box Exterior Color
Black
Box Finish
Carpet
Tuning Frequency
38 Hz
Port Details
Number of Ports
1
Tuning Frequency
38 Hz
Port Diameter
1.5" x 14.50"
Port Length
17.52"
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

Weight:

30.00lbs

Internal SKU:

ne121p

Internal Product ID:

222821

Product and How-to Videos


Customer Ratings & Reviews


NVX NE121P Empty Single 12

5 star
58%
4 star
35%
3 star
4%
2 star
4%
1 star
0%



Durability
4.5
Value
4.8
Features
4.7
Design
4.7
Usability
4.7

Customer Photos & Videos


Customer Reviews

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review on the box amp and speaker that I bought great buy on all

The following review is for a previous version (12SQV).

it was a great buy the sub was is the best sub I've ever bought definitely worth the value and the amp it was definitely worth the value also

By sonicSam on April 21, 2015 Checkmark Icon Verified purchase

46 found this helpful


Your choice...

The following review is for a previous version (12SQV).

I bought the single 12 inch box for my rockford fosgate P3, the box makes my sub hit very clean and hard. The only problem is that Sonic Electronics ships the sub box with NO protection. I recieved the box with 3 dings in it but sonic couldnt help me out. So its hit or miss...

By Ryan on May 19, 2016 Checkmark Icon Verified purchase

36 found this helpful


It's a good box

The following review is for a previous version (12SQV).

It's a good box but it didn't fit my re sub I had to cut the opening alittle so it can fit

By Robert on September 3, 2015

37 found this helpful


No clean bass!

The following review is for a previous version (SQP 1 12).

Been running a sealed box sounded great too!. Everyone pushed me into a ported box (this one) raving how hard it will hit.. installed my Alpine SWR-12D2... on my PPI 1000.1 amp @ 1 ohm. Sounds great on Rap! So if thats ALL you listen too then get this box... But on Dub step and rock, the sound quality crap. Back in the early 2000s i ran a similar sub on a circle port Q logic box and it sounded way better then this box. So for all you lovers or ported boxes im not bi est. I do like ported if tuned right. The problem is if you are not running a box specifically designed for the sub you have I would go sealed and make sure your sub is getting the exact RMS it can take. The sealed box I have is the same brand. SOUNDS AWSOME!!

By Kenny on April 23, 2014

35 found this helpful


great buy worth the money

The following review is for a previous version (SQP 1 12).

this box sounds awesome, the carpet is very clean, and is built very nice, makes my alpine type SWX-1243D bump a lot harder then my last box and sounds much cleaner.

By cody on January 6, 2014

31 found this helpful


Atrend 12SQV

The following review is for a previous version (12SQV).

For a prefab box it is good but if you want to get the best out of your speakers build a box to there spec's

By Anonymous on May 25, 2018 Checkmark Icon Verified purchase

28 found this helpful


Atrend 12SQV

The following review is for a previous version (12SQV).

Solid build great look and fell, fits great in 97 Honda civic coupe trunk

By Anonymous on May 23, 2018 Checkmark Icon Verified purchase

27 found this helpful


Decent box for the price

The following review is for a previous version (12SQV).

Gets the job done. Not the best looking thing in the world but I am pleased with it. For 70 bucks I couldn't pass it up and I am glad I didn't. Still holding up after a year of almost daily use with a Kicker CompVX in it being pushed pretty hard.

By John on January 22, 2021

26 found this helpful


Atrend 12SQV

The following review is for a previous version (12SQV).

Id have to give it a honest for stars only because of the subwoofer I'm running needs a bigger box. Great for something that's putting out consistent thousand RMS at 35 to 55 Hertz.But for me I'm currently running 1600 rms.

By Anonymous on May 18, 2018

27 found this helpful


12 inch subwoofer enclosure

The following review is for a previous version (12SQV).

It looks well made. I haven't installed it yet. I plan on installing a Rockford Fosgate T0 12inch sub with a RF BDCP1500 pushing it. Cutting the amp down to about 750 watts. I can't wait to hear how it sounds. Judging by past Attend enclosures I've owed, it should be a ground shaker!!!

By gdrakec22 on October 21, 2016

26 found this helpful




ESW124 main

NVX ESW124

• Peak Power: 500 watts
• RMS Power: 250 watts
• Impedance: Single 4 ohm
• Enhanced Pressed Paper Cone
• High Roll Foam Surround
• Mount depth: 5.56"
• Sensitivity: 87 dB

$69.99

List price $83.99

YSW124 main

NVX YSW124

• Peak Power: 1600 watts
• RMS Power: 800 watts
• Impedance: Dual 4 ohm
• Enhanced Pressed Paper Cone
• High Roll Foam Surround
• Mount depth: 6.5"
• Sensitivity: 85 dB

(4)

$149.99

List price $227.99

YSW122 main

NVX YSW122

• Peak Power: 1600 watts
• RMS Power: 800 watts
• Impedance: Dual 2 ohm
• Enhanced Pressed Paper Cone
• High Roll Foam Surround
• Mount depth: 6.5"
• Sensitivity: 85 dB

(3)

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