**Inverted Apex Surround**
Creates higher volume displacement, higher SPL and higher displacement.
**Progressive Suspension**
Controls excursion at high power lowering 3rd order distortion.
**Radial Ribbed T-Yoke**
Dissipates heat and decreases distortion.
**The 55 Series Legacy**
The 55 Series, MTX's best selling subwoofer family, is a perfect mix of performance and value for enthusiasts that want to add extreme bass to their system without breaking the bank. We have squeezed an oversized cone into the standard 10", 12" and 15" frames, so the sub moves more air and gives you more bass. The woofer's movement cools the sub as it plays, so it doesn't overheat when you're rocking out. The special suspension exerts extra control when you're pushing the sub hard. Some would say that we've once again out done ourselves, but it only gets better and better.
If you want to have the best sounding, loud and pounding bass around and not break the bank, then the 55 Series is your subwoofer. Whether you have space for 10, 12 or 15 inch, we have the **Bass For you**!
**The MTX Inverted Apex Surround**
This subwoofer features the MTX Inverted Apex Surround. This is a departure from a traditional half roll surround. The Inverted Apex is narrower thereby increasing the surface diameter of the subwoofer cone enabling it to displace more air and generate higher SPL. The 55's are designed with a progressive suspension that lowers distortion resulting in improved sound quality even at high volume.
**55 Series Spider Plateau Venting**
This subwoofer also incorporates Spider Plateau Venting which is a mechanical cooling process that targets cool air at the voice coil and a radial ribbed t-yoke that acts as a heat sink effectively managing the subwoofer temperature for long term rocking performance.
**FEATURES**
* Inverted Apex Surround - Increases Surface Area Resulting in Increased Volume Displacement and SPL
* Spider Plateau Venting - Targets Cool Air at Voice Coil for Improved Thermal Performance
* Progressive Suspension - Controls Excursion at High Power Reducing Distortion Resulting in Better Sound Quality
* Radial Ribbed T-Yoke - Helps Dissipates Heat and Decreases Distortion Improving Sound Quality
* 2.0" High Temperature Voice Coil
**SPECIFICATIONS**
* Peak Power (Watts): 400
* Recommended Amp Power (RMS): 200 - 400
* Impedance: Dual 4Ω
* Peak Power (Watts): 800
* Frequency Response: 26Hz - 130Hz
* Sensitivity: 85.7dB
* Voice Coil: 2" (5.08 cm)
* Magnet Weight: 56 oz
* Mounting Depth: 6.188"
* Cut Out Diameter: 11.125"
* Volume Displacement (cu in): 52.46 cu in
* Sealed Enclosure Net Volume: 1.0 cu ft
* Vented Enclosure Net Volume: 2.32 cu ft
**SUPPORT FILES**
* Installation Sheet: Tech Data Sheet (2 pages) - [Download](https://www.datocms-assets.com/31486/1617776518-51015512-44techdatasheet.pdf?dl=51015512-44techdatasheet.pdf)