Product Data Feed http://www.audioauthority.com Audio Authority 939 new The answer to the increasing demands of demonstrating higher-power speakers. The 939's half-inch board traces and huge relays can handle up to 2,500 watts per channel at 4 ohms, capable of even the most demanding demonstration applications. http://www.audioauthority.com/product_details/939 http://www.audioauthority.com/images/products/939_scaled_740.jpg