Midwest's six Duluth-Superior radio stations share studios at 11 East Superior Street in downtown Duluth, Minnesota.

Owner Lew Latto purchased the facilities of beautiful music station KPIR in September 1974, and began simulcasting the format of WAKX on both 970 AM and 98.9 FM.

In 1982, the AM station changed its call sign to KXTP and switched to adult standards, airing the "Music of Your Life" syndicated format.

In 1994, Latto sold KXTP and WAKX to Ken Beuhler and Patty McNulty, the owners of WDSM and KZIO (currently KDKE).

Later that decade, Buehler and McNulty sold their stations to Shockley Communications, which changed KXTP's format to country music and then Radio Disney network in April 1998.

Its weekday daytime programming originated from WRNW 97.3 FM, a sports station in Milwaukee owned by iHeartMedia.

[5] On April 25, 2022, WDUL changed formats from sports to CHR, branded as "Hot 98.1" competing against Top 40 outlet KBMX 107.7 "Mix 108".