DESC: he Goldwood GR-600 ceiling speaker is a great addition to any bedroom or office. It is designed for both whole house audio and surround sound applications. It features a 6-1/2" woven Kevlar woofer to deliver smooth mids and rockin' bass. The pivoting 1" silk and Titanium dome tweeter reproduces crisp, clear highs by using a 12 dB crossover with a Mylar capacitor. The tweeter also has a +3/-3 dB level adjustment that allows it to fit into any room environment.