The Dayton Audio Reference Series RS180-8 7" woofers deliver exceptional clarity, detail, and dynamics and of course, incredibly low distortion. Product Highlights One of the lowest distortion, highest resolution driver series available Low-distortion high-excursion motor system with two short-circuit paths Compliant suspension and rigid black anodized aluminum cone for strong bass performance Heavy-duty 6-hole cast frame, low-loss rubber surround, and solid aluminum phase plug The Dayton Audio Reference Series was conceived with one goal in mind¿low distortion. Each speaker was carefully designed and optimized to offer the highest performance with the lowest distortion levels. At the same time, by focusing on features that contribute to sound quality and eliminating unnecessary frills, the drivers offer value unparalleled in the industry. Dayton Audio Reference Series RS180-8 7" woofers deliver exceptional clarity, detail, and dynamics¿and of course, incredibly low distortion.