Get that JDM look with RSX Subwoofers. You won’t believe your ears when you hear your subwoofer. RSX Subwoofers are an easy modification. Shake the ground with a new subwoofer. New RSX Subwoofers are in style. We sell the best sounding subwoofer around. Many of the best manufacturers are offered for your RSX Subwoofers. Your music will come to life with the installation of a new subwoofer.