Name: NVX NE121P (Open Box, Great)
Brand: NVX
SKU: ls-ne121p-u8
Price: 95.86 USD
Availability: Discontinued

by NVX

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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

Learn more about the ls-ne121p-u8

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

Authorized dealer

Item Condition - Open Box, Great:

This product works like new, is well-cared-for and in great condition. May show limited signs of wear or use and may be missing non-essential parts, accessories or original packaging.

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 (Open Box, Great) (newest, current model)
	Atrend 12SQV (previous model, replaced by NVX NE121P (Open Box, Great))
	Ground Shaker SQP 1 12 (previous model, replaced by Atrend 12SQV)

Frequently Asked Questions (FAQ)

Why should I choose a sealed enclosure like the NE121P over its ported counterpart (NE121S)?

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.

Will a high-excursion 12" sub with a massive magnet hit the back panel of NE121P?

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.

My hip-hop tracks feel like they’re missing deep beats, sounding hollow. How does the NE121P help?

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.

Can I add more Polyfill to the NE121P?

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.

What’s with the choice to build NE121P with rounded corners?

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.