Polypropylene speaker cones perform well in outdoor installations because the material supports clear audio in all-weather surface-mount and rock speaker designs. For dependable outdoor use, pair the cone with a weather-resistant enclosure, grille, and hardware, as found in speakers designed for exposure to rain, wind, and changing temperatures.

Compare enclosure construction and weather-resistant components, speaker size, woofer and tweeter design, voice-coil configuration, and the mounting method for the installation environment. For surface-mount systems, also consider bracket adjustability, discreet placement, and available 70-volt tap settings, while landscape applications may benefit from rock-style enclosures, dual voice coils, and finishes such as granite or sandstone.

Polypropylene speakers designed for 70-volt audio systems connect to the distributed-audio system and use tap settings to help balance coverage across commercial or outdoor spaces. An adjustable dial can select output levels such as 3.75 watts, 7.5 watts, 15 watts, or 30 watts, giving installers control over volume and speaker loading for the installation.

Choose a single voice coil polypropylene speaker when the system can use multiple speakers, such as a stereo pair for left- and right-channel audio. Choose a dual voice coil polypropylene speaker when one speaker needs to provide stereo sound in a single zone, such as a small outdoor area.