We drew on our long experience as a manufacturer of top quality HiFi speaker systems to develop these three all-weather models. We were able to make them extremely durable while still maintaining audio performance up to Yamaha standards. The woofer uses a highly responsive cone and a fluid-cooled soft dome tweeter, both specially processed for water resistance. The internal structure has been carefully designed for optimal time alignment between the two units, providing proper sound imaging. A waveguide and front baffle ensure good sound dispersion characteristics. Tonal clarity in all frequency ranges is excellent, with very low distortion.