Audio Reviews

Detailed feature overview of the MTX 55 series

In this article: We give you the details on one of our most popular budget subwoofer options, the MTX 55 Series. This is a useful sub that has been around for a long time but still works today.

Functional overview of the subwoofers of the MTX 55 series

So do you want big bass in your ride, but don’t want to spend tons of money to get it? The MTX 55 series is one of our top picks for exactly this reason. These subs offer the ability to take abuse, last a long time, and you don’t have to lie to your friends or significant others about the cost. They have now been featured on our list of the best car subwoofers for several years in a row and are a very competitive subwoofer for their price and performance.

These subs might not have the most advanced technology on the block, but they’re proven to deliver great bass in all manner of sealed and ported boxes. It’s important to keep the gain reasonable, but these subs hit hard enough that you don’t have to shell out big bucks for a subwoofer amp, either. This keeps your system affordable while giving you the kind of rounded or booming bass you desire.

Inverted Apex Design

MTX 55 series inverted apex

Most subwoofers on the market use what is called a half-roll surround design. This is the rubber bead along the outside edge of the cone that secures it to the frame. Half-roll surrounds can be found on almost every subwoofer on the market, and they’ve treated us well for decades. However, one of the disadvantages of high-performance subwoofers that use a half-roll design is the distortion caused by wrinkling under high loads. Especially when the subwoofer is retracted to the lowest point. If you watch a subwoofer in slow motion, you might be able to see it.

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One of the unique features that MTX (along with other MTX subwoofers) built into their 55 Series subwoofers is what is called the Inverted Apex. It uses four fold points to stretch farther than traditional half-roll surrounds without wrinkles or distortion. It helps improve SPL/volume but also increases the cone surface area, making the subwoofer more efficient and blowing more air.

Progressive Suspension & Spider Plateau Vent

mtx progressive suspension vs. non-progressive

A design found on more expensive subwoofers, the progressive spider ensures the subwoofer can achieve full excursion to deliver deep, booming bass notes and function without overheating. The more excursion the better. MTX builds these subs with a radially finned T-yoke that acts as a heat sink to effectively cool the voice coils.

main features

  • Sizes 10″, 12″ and 15″ are available
  • Dual two ohm and four ohm voice coil models are available
  • Polypropylene woofer cone
  • Inverted Apex rubber surround
  • Spider plateau cooling
  • Progressive suspension
  • Radial ribbed T-bar

Frequently Asked Questions (FAQs)

How much power can a 55 series subwoofer handle?

The load capacity is in the range of 200 watts to 400 watts for all sizes of the 55 series. Excessive power supply will shorten the life of the subwoofers and will not provide good sound.

Why is the 55 series so cheap?

In many ways, these speakers are very simple, using numerous inexpensive materials and construction methods to keep costs down, resulting in an affordable subwoofer.

Is this the cheapest subwoofer on the market?

There are several inexpensive and very inexpensive options, but none of them are as good as the 55 series.


The MTX 55 Series subwoofers have stood the test of time by routinely holding their own against much more expensive subwoofers. For the bass head that wants lots of boom but doesn’t want to spend a lot of cha-ching, the 55 series is our top pick and has even been included in our list of the best car subs on multiple occasions. We know people who have been using this speaker for almost a decade with no problems. It’s an all round subwoofer at a great price that proves you don’t have to spend a fortune to have great bass response in your vehicle.

Joshua Elliott
Bacon practitioner. Certified coffee fan. Lifelong food junkie. Web trailblazer. Typical internet fanatic.

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