KKHH (as KHJZ) signed on HD Radio operations in 2006. 95.7-HD2 carried a traditional jazz format. After the flip of the analog/HD1 signal in March 2008, the smooth jazz format that was on the former moved to KKHH-HD2, as well as "The Wave" moniker. When CBS bought KHMX (96.5 FM) in April 2009, KKHH-HD2 and KHMX-HD2 swapped formats, with KKHH-HD2 now airing a dance format, branded as "Energy 95.7", while the smooth jazz format and "The Wave" moniker moved to KHMX-HD2. In addition, KKHH added an HD3 channel in 2010. KKHH-HD3 carries a simulcast of sports talk station KIKK.