Newegg offers the Polk Audio CS2 Series II Center-Channel Speaker in Black for $99.99. Coupon code "EMCAKNW28" cuts it to $79.99. With free shipping, that's the lowest total price we could find by $20, although we saw it in another color for $10 less last winter. It features two 6.5" woofers, a 1" tweeter, 50Hz to 25kHz frequency response, and low pass magnetic shielding.