Yamaha HS5 Powered Studio Monitor 2-Way bass-reflex bi-amplified nearfield studio monitor with 5" cone woofer and 1" dome tweeter 54Hz-30kHz 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