Terminator TNP212D2 Dual 12 inch 400W RMS Sealed Enclosure and Mono Block Amplifier

Sub + Amp + Box Subwoofer Packages

The Party Pack

This powerhouse amp and dual twelves package delivers kicking bass to any audio system

The MTX Terminator TNP212D2 is an excellent all-in-one solution for anyone looking to add bass to their vehicle's audio system. The Party Pack is 400 Watts and two heavy twelves of a rocking concert-in-a-box!

Everything you need for a great bass system is in this package except wire! Consider buying the Complete TNP212D2 subwoofer package with all wiring included, or add your choice of amp kit, interconnects and speaker wire to your cart (shown below).

Loaded Enclosure With Strong Amp

This package includes the TNP212D2, a dual 12" sealed subwoofer enclosure and the included TNA251, a single channel amplifier specifically designed to work with the enclosure. For over 40 years MTX Audio has been making car audio electronics designed to deliver more than expected and that is exactly what this package offers.

Availability: In stock
Sold Individually

Thunder Bass

Hard hitting dual 12 inch MTX subwoofers

Designed For SPL

Rock your car and the neighborhood!

Easy Installation

Mounts quickly in most trunks and SUVs


TNP212D2 Highlights

  • Dual 12" Enclosure
  • 800W Peak Power, 400W RMS Power Enclosure
  • 250 Watt Mono Block Amplifier Included
  • 5/8" MDF Construction
  • Sealed Design for Tighter Bass Response


"...boy do these pound the bass is tight and the highs and lows are just amazing these even hit harder then my rockford fosgate punches"

donnie, 1/16/2013, TNP212D2 Review

Two Heavy Twelves

The TNP212D2 includes two 12" subwoofers that are capable of handling 200 watts RMS power making for a total of 400 watts RMS. This sealed enclosure is made of 5/8" MDF (medium density fiberboard) and aviation grade carpet, ensuring its durability over time.

Rockin' Power

The included TNA251 is a 250 watt mono amplifier power house that is easy to connect to any source including factory radios. These two pieces together are the perfect choice for anyone looking for an easy to install complete system that will rock your universe. Throw the MTX Party Pack in the trunk and watch the people around the parking lot start dancing.

TNA251 Advantage

Consider buying the Complete TNP212D2 subwoofer package with all wiring included, or order the wiring of your choice separately below.


Mono Block Amplifier Included
5/8" MDF Construction
RCA connection for input and pass thru output
Tech Specs
Subwoofer Dual 12"
RMS Power (Watts) 400
Height 14"
Width 29.625"
Bottom Depth 13.5"
Top Depth NA
Weight 55.1 lbs.
Support Files
TN250-1InstallWiring (1 page) View |  Download