Home > Car Audio > Subwoofers > 18" > RE Audio SX18-D4 18" Dual 4 Ohm SX Series Car Stereo Sub Subwoofer SXX18-D4 (SX18D4 / SXX18D4)

RE Audio SX18-D4 18" Dual 4 Ohm SX Series Car Stereo Sub Subwoofer SXX18-D4 (SX18D4 / SXX18D4)

List Price:  $2309.00
Price:  $395.99
You Save:  $1913.01 (83%)
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RE Audio SX18-D4 18" Dual 4 Ohm SX Series Car Stereo Sub Subwoofer SXX18-D4 (SX18D4 / SXX18D4)

The louder they are, the better they are. If it's cool looking, it must be good sounding! Not true! Loudness is only part of the equation. The degree of distortion and smoothness of frequency response is the other. RE Audio pays special attention to both factors where most manufacturers don't — because they can't! You will be hearing things you never thought possible — UNTIL NOW!

From our REX entry level series to our top of the line XXX series, the quality of sound remains the same — Great! The difference is in the power handling and output. We make it easy to choose — And oh yes, they are cool looking too!


  • RE Audio SX18-D4 18" Dual 4 Ohm SX Series Car Stereo Sub Subwoofer SXX18-D4 (SX18D4 / SXX18D4)
  • SKU: REA-SX18-D4
  • 18" Dual 4 ohm SX Series Car Subwoofer
  • Power Handling:
  • RMS: 1000 watts
  • Impedance: 4 ohm
  • Dual composite 2-piece cone
  • Rubbertek Foam Surround
  • Tork-Tite terminals
  • Cast aluminum basket
  • 3" 8-layer aluminum voice coil
  • Triple stack magnets
  • Hand-built in the USA
  • This item is New
  • 1-Year Manufacturer's Warranty
  • All Warranties are handled through Half Price Car Audio (1-877-701-4253) Half Price Car Audio Warranty
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Return Policy
This item can be returned in its original condition within 14-Days for a refund, minus a 20% restocking fee, and minus shipping.


Warranty Information
  • This item has a 1-Year manufacturer's warranty.