City Denver, Colorado
Broadcast area Denver, Colorado
Branding Mix 100
Slogan Today's Best Mix
Frequency 100.3 MHz (also on HD Radio)
First air date August 8, 1959 (as KLIR)
Format Hot AC
ERP 97,000 watts
HAAT 345 meters
Class C
Facility ID 59597
Callsign meaning K InterMountain Network
Former callsigns KLIR (1959-1984)
KMJI (1984-1989)
KXLT (1989-1992)
KMJI (1992-1995)
Owner Stan Kroenke
(KSE Radio Ventures, LLC)
Sister stations KWOF, KXKL, KKSE
Webcast Listen Live
For the former AM station in Denver, see KKSE.

KIMN (100.3 FM, "Mix 100.3") is a Hot AC radio station in Denver, Colorado. The station broadcasts at 100.3 MHz with an effective radiated power of 97 kW and is under ownership of Stan Kroenke's KSE Radio Ventures. Its studios are located on Colorado Boulevard in Glendale, and the transmitter site is on Mount Morrison west of Lakewood.


The station signed on the air on August 8, 1959 as KLIR and spent most of its life with an MOR format and as a beautiful music outlet. On June 7, 1984, the station switched to an Adult Contemporary format as KMJI ("Majic 100"), but would later tweak its direction to Soft AC and change its calls to KXLT ("K-Lite 100"). In November 1991, the station would revert to the "Majic 100" moniker, and in 1992, would reclaim the KMJI call letters,[1] with the format evolving to an all-'70s direction in June 1994.[2] The KIMN calls were picked up on April 18, 1995, along with the name "KIM 100."[3]

On March 3, 1997, KIMN returned to AC (again as "KIM 100").[4] In 1999, the station evolved into a Hot AC format and adopted the "Mix 100" moniker. For the next several years, weekend programming on KIMN featured music entirely from the 1980s.

CBS Radio sold KIMN, along with sister stations KXKL-FM and KWOF, to Wilks Broadcasting in 2008.[5]

In the summer of 2014, KIMN updated its moniker to "Mix 100.3" and changed its positioning statement from "Denver's Best Music Mix" to "All The Hits", while shifting towards Top 40 (CHR). Despite the format shift, KIMN continues to report to both Mediabase and Billboard/BDS's Adult Top 40 charts. This also makes the station more in competition with Entercom's Adult Top 40 rival KALC and Rhythmic Top 40 sister KQKS, and iHeartMedia's Top 40/CHR KPTT. In 2016, the station returned to its previous moniker "Mix 100" and a new positioning statement, "Today's Best Mix."

On October 12, 2015, Kroenke Sports Enterprises, owned by Altitude Sports and Entertainment founder Stan Kroenke, announce they would acquire Wilks Broadcasting's Denver properties, including KIMN, Country KWOF, and Oldies KXKL-FM. Once the sale was approved by the FCC, KSE was expected to flip one of the three outlets to Sports, which could see the Denver Nuggets, Colorado Avalanche, and Colorado Rapids moving from its current home in Denver, which is KKFN.[6] The transaction was consummated on December 31, 2015, at a purchase price of $54 million.


The popular Denver Morning Show is the family-friendly "The Mix Morning Show" featuring Dom Testa, Jeremy Padgett and Emily Makinzie. "The Mix Morning Show" regularly rates number 1 among Denver Morning Shows with Women 25-54. Other station air-staff include Mark Andrew (weekdays 10am-3pm) and Bo Jaxon (weekdays 3-7pm).

In June 2008, KIMN became the Denver affiliate of the syndicated show "On-Air with Ryan Seacrest". The station would drop the show in February 2009. The station currently airs "American Top 40" hosted by Ryan Seacrest on Sunday mornings.

HD channels

Mix also provides listeners with two HD subchannel stations: 100.3-HD2 features "Ultimate 80's Mix" and 100.3-HD3 plays Jazz favorites.[7]


The call letters KIMN originally belonged to a Denver AM station located at 950kHz. From the late 1950s to the 1980s, KIMN was the dominant Top 40 music station in Denver. The station also highlighted the popular local rock n' roll bands of that era, such as the Astronauts, Daniels, Fogcutters, Moonrakers, Soul Survivors,and others.[8] The station had other nicknames as the Denver Tiger, Boss Radio, and 95 Fabulous KIMN.[9] The station was then owned and operated by the late Kenneth E. Palmer(1925-1984).[10]


Coordinates: 39°40′19″N 105°13′16″W / 39.672°N 105.221°W / 39.672; -105.221

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