Event 20/20 BAS Active Nearfield Studio Monitor "Two-way front-ported speaker 7.1"" Woofer 1"" Silk Tweeter Class AB amplifiers 250 watts of burst power Less than .01% Total Harmonic Distortion (THD Two year manufacturer' warranty" "7.1"" Woofer " "1"" Silk Tweeter" Class AB amplifiers 25 watts of burst power