KNOU (96.3 MHz) is an FM radio station in St. Louis, Missouri, branded as "Now 96-3". Owned by Emmis Communications, the station's studios are located in the Powerhouse building at St. Louis Union Stations, while the transmitter is located in Shrewsbury.KNOU has two HD channels. 96.3-HD2 airs a classical music format operated by the non-profit Radio Arts Foundation branded as "RAF STL" (relayed on FM translator K297BI 107.3 FM), while 96.3-HD3 airs a smooth jazz format as "Hip 96.3".