Ever since the 1970's the iconic white woofer and signature sound of Yamaha's nearfield reference monitors have become a genuine industry standard for a reason - their accuracy. Unlike studio monitors with added bass or treble frequencies which may sound more flattering at first, HS Series speakers were designed to give you the most honest, precise reference possible, providing an ideal sonic platform to build on throughout the mixing process. By combining acquired knowledge and expertise with state-of-the-art sound technologies, Yamaha's speaker engineering team have examined, then optimized, every aspect that has contributed to making these monitors the most trusted in the business. The Yamaha HS5I 5" Studio Monitor Black Installation Compatible is a 2-way, bi-amplified active monitor speaker featuring a 5" low frequency driver and 1" high frequency driver plus 70 watts of power. Includes Room Control and High Trim response controls and an impressive 54Hz-30kHz frequency response. Installation version with mounting points to suit optional brackets (BCS20/BWS20).