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. Features 2-way bass-reflex bi-amplified nearfield studio monitor with 5 cone woofer and 1 dome tweeter 54Hz - 30kHz (-10dB), 74Hz - 24kHz (-3dB) frequency response 45W LF plus 25W HF bi-amp system for high-performance 70W power amplification ROOM CONTROL and HIGH TRIM response controls XLR and TRS phone jack inputs accept balanced or unbalanced signals Yamaha Quality 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 second generation HS Series also adds a new 6.5 model to the lineup, bringing its exceptional accuracy to an even greater variety of recording environments. Specifications Speaker type: 2-Way Bi-Amp Powered Studio Monitor Frequency Response (-10dB): 54Hz - 30kHz Frequency Response (-3dB): 74Hz - 24kHz LF Driver: 5 Cone HF Driver: 1 Dome Crossover: 2kHz Controls LEVEL Control: +4dB/Center Click HIGH TRIM Switch: +/- 2dB at HF ROOM CONTROL Switch: 0/-2/-4dB under 500Hz Output Power: 70W (LF:45W, HF:25W) Input Sensitivity: -10 dBu/10k ohms I/O Connectors: XLR3-31 Type, Balanced/PHONE, Balanced Power consumption: 45W Shape: Bass-Reflex Type Cabinet Material: MDF Accessories Owner's Manual Power Cord Dimensions 170mm (W) x 285mm (H) x 222mm (D) 5.3kg