This frequency was previously used to broadcast Kool 93, a station that played a similar format to Solid Gold.

After The Radio Network purchased Kool 93's parent company, Prospect Media Ltd, the Commerce Commission ruled that The Radio Network had to sell or dispose of some of their Auckland frequencies as a condition of the sale, and as a result they closed Kool 93, with the frequency going to Energy Enterprises.

Following the launch in Auckland, Energy Enterprises (which later became RadioWorks) rolled the station out across New Zealand as they were able to secure frequencies in each market.

From 25 December 2010 the station changed their positioning statement to "The Greatest Hits of all time", and no longer played only 1960s and 1970s music.

Daytime announcer Macca, who had been with the station since 1998, had his last show with Solid Gold on 30 December 2011 and did not continue with The Sound.

The last song on Solid Gold FM was "A Change Is Gonna Come" by Sam Cooke.

The Sound features a classic rock format, which broadcasts on all existing Solid Gold frequencies over the country.

[3] The change was made in response to competing stations Classic Hits and Radio Hauraki choosing to play newer music.

The talkback slot also included frank and explicit discussion about masturbation and teenage abortion, with his co-host blaming his poor choice of words on tiredness.