Advent Heritage Series 2-Way Center-Channel Speaker (Single, Silver) (Discontinued by Manufacturer) 2-way center-channel speakers designed to match Advent's stylish Heritage Series home theater speakers Dual 4-inch woofers and a 1-inch soft-dome tweeter provide full-bodied clarity for movies and music 15 to 150 watts power handling, 4 to 8 ohms impedance, 88 dB sensitivity 55 to 30,000 Hz extended frequency response enhances naturalness and detail Measures 15.8 x 5.3 x 9 inches (W x H x D)