The studios under RRB ownership were located at Grandma's Marketplace in Canal Park in Duluth.

Past and Present 94X DJ's include Zooch, Hans, The Kid, Ray, Ace Rockolla, The Milkman, Diesel, Smiling Mike, Alli Foxx, Todd Spoons and Skid Mark.

On February 27, 2017, Red Rock announced their intentions to sell KZIO and K231BI to Minnesota Public Radio for $300,000.

[3] MPR confirmed late in March that the station would carry their The Current network in the market upon the sale's closing.

KZIO returned to the air and began broadcasting The Current in the first week of June 2017.