These Bowers & Wilkins 685 main speakers can support surround sound setups in addition to functioning as stereo speakers, providing quality audio in a variety of system configurations. The Bowers & Wilkins speakers boast a high-quality design based on years of refinement to optimise the sound output. As such, these two-way speakers feature both an Nautilus aluminium dome tweeter and a Kevlar cone midrange driver that work together with the 4 kHz crossover to provide quality sound. The bodies of each of these Bowers & Wilkins speakers measures 340 mm high by 198 mm wide by 331 mm deep and weighs approximately 7 kg. This allows the positioning of the stereo speakers to be easily adjusted as a setup demands user. The drivers in these Bowers & Wilkins 685 main speakers give them a frequency response range between 49 Hz and 22 kHz, reproducing the majority of the human hearing range and just a little beyond. Quality technology and a refined designed make these Bowers & Wilkins speakers an ideal choice for audiophiles.