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Car Subwoofers > 
MTX > 
Item#: 9SIA1D914D4164

12" Dual 2 Ohm 400W RMS Subwoofer

  • MTX
  • Dual Voice Coil 2 Ohm
  • 25 Hz - 130 Hz
  • Sensitivity 85.1 dB

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

The 55 series subwoofers are built on the MTX tradition of delivering more than expected. These subwoofers feature a new Inverted Apex surround that increases surface area allowing for more air movement and higher SPL and a progressive suspension that lowers distortion resulting in increased sound quality. These subwoofers also incorporate Spider Plateau Venting which is a mechanical cooling process that targets cool air at the voice coil.

  • Expanded surface area allows for increased volume displacement and SPL
  • Progressive suspension controls excursion at high power reducing distortion
  • Inverted Apex surround with symmetrical geometry controls cone movement
  • Radial ribbed t-yoke dissipates heat and decreases distortion
  • 2.0" high temperature voice coil


55 Series Series


Subwoofer Size
Voice Coil


Peak Power
RMS Power
Frequency Response
25 Hz - 130 Hz
85.1 dB
2 Ohm
52.46 cu. in.
Sealed Box Volume
1 cu ft
Ported Box Volume
2.32 cu ft
Mounting Depth
6.188" (15.7 cm)
Cut-Out Dimensions
11.125" (28.25 cm)


Number of Woofer
Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year
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Home > 
Automotive > 
Car Electronics > 
Car Subwoofers > 
MTX > 
Item#: 9SIA1D914D4164
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