The OS50TB is attractively styled, 50W two-way music speakers that provide excellent sound reproduction at 8-ohms, 25V, 70V or 100V. They are engineered for indoor or protected outdoor use in upscale retail, restaurant, commercial, professional, educational or residential applications. OS50T Series features an architecturally curved plastic housing with a weather resistant terminal cover, fine mesh grille and U-shaped mounting bracket. Both the grille and bracket are made of aluminum for long lasting quality appearance. Lowell also offers OS100 Series 100W two-way speakers to meet applications with higher output requirements.