The SoundTube SM500I-II-WX has one 5.25 inch (133 mm) polypropylene woofer and one 1.0 inch (25 mm) convex titanium tweeter with FerroFluid™ cooling.

SoundTube®'s WX Weather Guard technology utilizes a dual layer hydrophobic material inside the speaker grille to keep water from the drivers and internal electronics in even the most extreme weather conditions. The SM500I-II-WX utilizes the patented ZeroReflection™ enclosure technology for optimal sound reproduction and cabinet rigidity as well as BroadBeam® waveguide technology to deliver a consistent dispersion pattern up to 10 kHz for maximum coverage area per speaker. The speaker's 86.0 dB average sensitivity offers high output capabilities and reduced amplification costs and the six-position selectable tap switch for 25-, 70.7- and 100-volt applications provides easy access. The included SM500i-II-WX Stealth™ bracket mounting system with vertical and horizontal pivoting allow the SM500i-II-WX to be aimed anywhere within the installation space and the low profile enclosure design keeps the speaker close to the wall. Safety cable with speaker mounting bolt, Euroblock connector, wall mount bracket and terminal weather boot are included. IP-Rating: IP44.