The HRS Series is a bass lover’s reason to celebrate. In addition to possessing many of Sunfire’s patented and celebrated technologies, the High Resolution Series takes its cues from our flagship, XT-Series SubRosa™ subwoofer. Like Subrosa, all three HRS models feature an obsessive attention to component selection, High Back-emf woofer design, and share its innovative acoustic tailoring we call Frequency Filtration Design™.  Exclusive to Sunfire, FFD™ greatly improves accuracy and gives HRS subs a remarkable ‘sonic intelligence’ that you’ll hear and feel every time you listen to your favorite music or movies. All this technology is wrapped in a gorgeous Piano-like gloss finish – so it looks as good as it sounds.