MTX RTL12X2D

Ported enclosure with dual 12" Road Thunder subwoofers

Item #: 236RTL12X2

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6 Reviews | 1 question - 1 answer

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Add some boom

MTX's RTL12X2D enclosed subwoofer will add intense bass to your ride, thanks to its two 12" Road Thunder subwoofers — just add an amp and wiring and you're good to go. These subs sound loud and deep in their rugged, ported enclosure that's built from medium-density fiberboard and covered with carpet — it'll be right at home in your trunk. The enclosure's 2-ohm impedance will draw out maximum power from your mono amp.

MTX engineering

MTX subs are built with years of know-how to make them sound large and in charge. The included Road Thunder subs feature polypropylene cones supported by a big rubber surround that resists cracking or separating. The sub's cooling system features forced-air venting in the stamped solid-steel frame that keeps the voice coils cool. The uniquely shaped spider assembly and extended pole piece ensure linear cone movement, so your bass sounds full, deep, and clean. And MTX protects this enclosure with their unique 5-year warranty.

Product Highlights:

  • ported enclosure with two 12" Road Thunder subwoofers
  • medium-density fiberboard construction covered with carpet
  • 2-ohm total impedance
  • power handling: 250-500 watts RMS (1000 watts peak power)
  • frequency response: 36-150 Hz
  • sensitivity: 86 dB
  • 33-1/8"W x 15-1/8"H x 16-1/8"D
  • warranty: 5 years (free repair or replacement for 2 years; prorated replacement for years 3 through 5)
  • Our 60-day money-back guarantee

Enclosed Subwoofers 101

An enclosed subwoofer is a box with a subwoofer already installed. The advantage to buying an enclosed sub is that the manufacturer made the sub, then designed and built the box as a perfect match, so you'll get the best possible performance. Every enclosed sub has a maximum RMS power handling rating, so pair it with an amp with a similar RMS power rating to get the best performance.

Hands-on research

What's in the box?

  • Ported enclosure loaded with two 12" MTX Road Thunder subwoofers

Features and Specs

General
Woofer Size (inches) 12 x 2
Woofer Material Polypropylene
Enclosure Type Ported
Color Black
Pieces in System 1
Width (inches) 33-1/8
Height (inches) 15-1/8
Depth (inches) 16-1/8
Second Depth (inches) N/A
Connector Type Spring post
Frequency Response 39-150 Hz
Power Range (Watts RMS) 250-500
Maximum Wattage 1000
Sensitivity 86 dB
Impedance 2 ohms
Parts Warranty 5 Years (3-5 Prorated)
Labor Warranty 5 Years (3-5 Prorated)

Product Research

Features
Warranty

Features

Woofers: The MTX RTL12X2D enclosure uses two 12" Road Thunder subwoofers.

Spider Plateau Venting: Heat from the voice coil is vented through vents that surround the back of the spider. As the woofer travels back and forth, cool air is pulled in and heated air is pushed out.

Asymmetrical Linear Drive System (ALDS): The Asymmetrical Linear Drive System consists of a flat, progressive spider that improves suspension and an extended pole piece that smoothes out the cone's linear motion. The result is high output and low distortion.

Speaker Terminals: The single pair of spring post terminals is mounted on the back of the enclosure and will accept pin connectors, single or dual banana plugs, or bare wire up to 10 gauge.

2Ω Load: The two subwoofers are internally wired to present a 2Ω load.

Break-in Period: The subwoofers' suspensions are stiff out-of-the-box and require a break-in period in order to produce optimum low-bass response. Approximately two weeks of daily playing will allow the suspension to break-in and reach its optimum equilibrium. A broken-in subwoofer will exhibit stronger bass performance, smoother response, and better low-bass extension.

Warranty

5 Year Warranty Terms: This product carries a 5-Year Prorated Warranty with the following terms:

  • Years 1-2: Products found to be defective in materials or workmanship during the first two years will be, at Mitek's option, repaired or replaced by Mitek at no charge. The warranty period does not renew, but continues on from the original date of purchase.
  • Years 3-5: The purchase price of an item which becomes defective after the first two years and prior to the end of the warranty period will be prorated and credited toward the purchase of a new MTX product. The amount of proration is determined by dividing the original purchase price by the number of months in the warranty period (60), then multiplying the result by the number of months remaining in the warranty period.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

MTX RTL12X2D Reviews

Average Customer Review:

6 reviews
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Mean bass!!

Written By Tony G., Greenville, SC on Friday, September 12, 2014

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • rating
    Value

I got this box to replace my terminator box with 2x12. Very happy with the {{{Bass}}}. I recommend these to anyone looking for a not to pricey box that delivers excellent bass

Big Bass without distortion

Written By Tom F, New York, NY on Monday, July 14, 2014

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

Great Sub with great bass without any distortion to music but still making the car shake. This system also looks great in the trunk of your car and does not mess around with boom. Great Sub with a great price. Put in a good amp and you will have your car shaking in no time. Great product.

first time customer

Written By Brian, 2172 county road 2 swanton ohio 43558 on Tuesday, June 03, 2014

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

Very satisfied with this purchase was everything I was looking for

Pros: Easy to instal sounds great

Cons: None

Not too good

Written By JerryH, New Jersey on Sunday, October 13, 2013

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

They sounded fine, build quality not good. Falling apart after 1 month of use. Planning on returning.

Pros: Good price, good sound

Cons: Build quality, size

Sounds awesome

Written By Anonymous, New York NY on Saturday, July 27, 2013

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

I must Say these MTX Really Kick Butt for the $$$ but ONLY if mached with the right Amp.....im using the a MTX 1000.1 with these speakers & wow my 2003 Honda Odyssey wants to fall apart thats how crazy the bass is GREAT VALUE

Great Bang for the Buck!

Written By Chris, Dublin, OH on Tuesday, March 26, 2013

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

These subs hit pretty hard. I originally started with an swr-823d, 8" alpine type r. The alpine was just not enough. I purchased these in its place and wow! at 2ohms they hit pretty hard and this is with an mrp-m500 alpine amp. Be warned that this enclosure is huge. The construction is great and I would tell others to buy this if you are looking for a budget system.

Pros: Well built, sounds good when paired with a decent amp.

Cons: This thing is huge.

Get everything you’ll need to enjoy your new MTX RTL12X2D

It's critical to have good wire, and none is included with the sub.
Dynamat helps reduce ambient road noise and your vehicle's "rattles," making it easier for you to hear your music better. Easy to install.
Keep your sub from rolling around in your trunk by using mounting hardware.
T-Spec 12-gauge Speaker Wire

T-Spec 12-gauge Speaker Wire

Black/white jacket — priced per foot

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T-Spec 16-gauge Speaker Wire

T-Spec 16-gauge Speaker Wire

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Stinger PRO Series Speaker Wire

Stinger PRO Series Speaker Wire

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Dynamat 19100

Dynamat 19100

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Dynamat Dynaliner

Dynamat Dynaliner

One 54" x 32" sheet (1/8" thick)

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Box Brackets

Box Brackets

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Pro.Fit Wire Worm

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Bojo Trim Panel Tools

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Set of 6 pry tools — helps remove interior and exterior trim and door panels

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S&G Wire Cutter/Stripper Tool

S&G Wire Cutter/Stripper Tool

Cuts and strips 12- to 22-gauge wire

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Bojo Trim Panel Tools

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Set of 6 pry tools — helps remove interior and exterior trim and door panels

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Autosound 2000 Disc One

Autosound 2000 Disc One

Low Frequency Test CD (Disc One)

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Autosound 2000 Disc Five

Autosound 2000 Disc Five

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Questions & Answers Ask the community. Share your knowledge.

1 question already asked

Thanks for your question. For information on selecting the best amp for your subs I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences between the amp models and help you make the best choice for your system. [ Krissy  Aug 22, 2014 ]  Staff