KRMX-FM was the call sign used from 1981 until 1985 on Pueblo’s 107.1 FM facility.
Spanish-language service
The station had signed on October 30, 1979, as KAPI-FM, paired with KAPI 690 AM. In 1981 both stations adopted the KRMX calls and continued Spanish-language programming.
Super X FM 107
In April 1985, KRMX-FM separated from the AM schedule and adopted an English-language service branded “Super X FM 107.” Contemporary accounts described a mixed schedule: country in mornings and evenings, easy listening at midday and an afternoon program staffed by high-school students.
Sunbrook Broadcasting acquired the station later in 1985 and changed it to full-time country as KUSN “US 107.”
Call-sign timeline
KAPI-FM → KRMX-FM (1981–1985) → KUSN → KCSJ-FM → KGRQ-FM → KNKN → KIQN → KLCX → KWRY
Sources
- KWRY published facility history with contemporary Pueblo newspaper references
- M Street Radio Directory 1990 — later 107.1 facility listing
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