perlisten r18sDeep bass and absolute control in a high end 18 subwoofer The Perlisten R18s is the top of the line active subwoofer in the R Series, designed for those who want exceptional home theater and hi fi performance , with maximum installation flexibility. The 460 mm (18") glass fiber composite driver, newly developed by Perlisten engineers, offers a linear excursion of 23. 7 mm , generating dynamic, deep and precise bass even at high volumes. Thanks to its