$110 OBO The SF-1 makes efficient use of a magnetically shielded 6.5-inch graphite-injected woofer and a 1-inch aluminum diaphragm compression driver coupled to a Klipsch 5-inch square Tractrix® Horn creating realistic spatial imaging and smooth uncolored sound reproduction. A large flared port extends the SF-1's deep authoritative bass without turbulence noise or dynamic compression. Other class-leading design features such as high-definition crossover networks and internally braced enclosures help ensure peak performance from every SF-1 while the unique venting system of its cast-polymer woofer frame cools the voice coil to enhance reliability. The SF-1's enclosure employs the highest-quality MDF construction and is finished in jet ash vinyl veneer. This floorstander also features a "floating" or suspended grille design which minimizes image-impairing sonic reflections. The SF-1's surprising high level of smooth and seamless sound reproduction creates a knock-your-socks off experience that will impress your friends and provide years of high-quality audio entertainment.