volume control 100Watts;35-20,000Hz; Build-in an ON/OFF switch to speaker;12-step volume control - VRS100 ON/OFF Power handling: 100 watts stereo volume control Frequency ... response:35-20,000Hz Selectable impedance matching(1X, 2X, 4X, and 8X) high quality autoformer Build-in an ON ... "(71mm) behind plate Colors: White, Ivory, Almond VRS100 ON/OFF Volume Control