A: The PHT15 features built-in 15W/7.5W/3.75W/1.8W multitap transformer and screwdriver-adjustable power taps with 100V & 70V modes, it is compatible with any PA amplifier that features a speaker jack.
A: The PHT15 is an all-weather, indoor/outdoor unit that made of Acrylonitrile Butadiene Styrene (ABS) plastic, which is commonly used to make particularly rugged products such as automotive body parts; it is rugged enough to be installed above a basketball court or a baseball field.