🔈NEW! SVS 17-Ultra R|Evolution Series Subwoofers Overview: https://audioadvice.io/PB17andSB17Overview If you want reference-level bass for your home theater or music system, the new PB17 Ultra and SB17 Ultra R are exceptional choices. These models feature SVS’s largest driver to date—a powerful 17” unit that significantly improves output levels at the lowest frequencies, delivering an extra kick of realism to music and movies. Each subwoofer is equipped with dual mono amplifiers, providing each