Audac MERO5 High-end 2-way In-wall Speaker - 5"The selection of high grade materials in combination with accurate acoustics craftsmanship makes the MERO speakers superior in their class. The medium sized MERO5 consists of a 5 aluminum cone woofer and complementary 1 dome tweeter that are smoothly matched and optimized using a high quality crossover network. An acoustically optimized waveguide matches the dispersion of woofer and tweeter, while a phaseplug reduces diffraction and enhances off axis