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Dual 12" 400-Watt RMS Sealed Enclosure and Mono Block Amplifier

$329.95 MSRP

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!

This package includes the TNE212D, 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.

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TNP212D2 Subwoofer Kit

Perfect Starter System

The MTX TNE212D is an ideal solution for anyone looking to add bass to their vehicle's system without breaking their bank or going over the top. The TNE212D is the perfect combination of performance and value ensuring that enthusiasts of all types can enjoy the bass that MTX has built its reputation on for 40 years.

TNP212D2 Subwoofer Kit

Unbeatable Bass and Unmatched Performance

The TNE212D combines great subwoofer design with perfect enclosure design to deliver bass that far exceeds expectations. Each subwoofer can handle 200-watts RMS power, 400-watts RMS for the entire enclosure.

TNP212D2 Subwoofer Kit

High-Quality Construction

The enclosure itself is made using extra-strength 5/8" MDF (medium density fiberboard), which is the preferred material for subwoofer enclosures, ensuring the enclosure can contain the massive low frequency sound waves generated by the subwoofers without problem.

TNP212D2 Subwoofer Kit

Rockin' Power

The included TNA251 is a 250 watt mono block amplifier that is easy to connect to any source, including factory radios, and that has been specifically designed for use with the TNE212D enclosure for optimal performance.

Dimensions & Details

Enclosure Dimensions

  • Enclosure Width:      29.63" (752.60mm)
  • Enclosure Depth:      13.5" (343mm)
  • Enclosure Height:     14.0" (355.6mm)  

Amplifier Dimensions

  • A - Amplifier Length:   7.01" (178.1mm)
  • B - Amplifier Width:    5.39" (136.9mm)
  • C - Amplifier Depth:    1.85" (47.1mm)


  • Subwoofer: Dual 12"
  • Height: 14"
  • Width: 29.625"
  • Bottom Depth: 13.5"
  • Top Depth: NA
  • Weight: 55.1 lbs.
  • Warranty Period: 12 months from date of purchase


Returns & Warranty

30-Day Money-Back Guarantee

At MTX Audio, we are serious about sound®. Therefore, if you are not "blown away" with your purchase, for any reason, you can return any items purchased directly from that are complete and like new within 30 days. Products purchased from authorized MTX retailers must be returned through that same retailer. Products purchased through non-authorized MTX retailers may not be returned.

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Warranty Information

MTX products purchased in the USA from an authorized MTX dealer are guaranteed against defects in material and workmanship for the period of time specified below, the warranty period begins the day the product is purchased by the end user. This warranty is limited to the original retail purchaser of product and extends only to products purchased from authorized MTX resellers. Product found to be defective during that period will be repaired or replaced by MTX at no charge.

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