TIC CORPORATION SP70VTA 70-Volt Outdoor Speaker Switch (Matte Black Finish) Turns Almost Any Standard 8ohm Speaker Into A Multiuse Distributed 25v/70v/100v Constant Voltage Outdoor Speaker System Input To Output Cable Seals Imp: 8ohm With 2.5w, 5w, 10w, 15w & 20w, 70v Taps No-tool Tap Selection Abs Impact-resistant Enclosure Outdoor 70V Speaker Switch Makes 70V Capable On Any Standard 8 Outdoor Speaker Includes Slip Fittings and Screw Lock Can Be Buried To Complete Unobtrusive Installation No Tools Necessary Matte Black Finish