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City Long Beach, California
Broadcast area Greater Los Angeles
Branding 105.5 KNAC
Slogan Pure Rock
Frequency 105.5
First air date January 8, 1986
Format Heavy metal, hard rock, alternative rock
Callsign meaning "K-N-A-C"
Webcast Listen

KNAC-FM (branded as Pure Rock 105.5 KNAC) was a Los Angeles heavy metal FM radio station licensed to Long Beach, originally owned by Fred Sands, broadcasting at 105.5 MHz from January 8, 1986[1] to February 15, 1995; about two weeks after the sign-off, it was replaced by the Spanish-language radio station known as KBUE (Que Buena).[2] In February 1998, however, KNAC was revived as an internet-based radio station. Prior to 1986, KNAC had existed in several different formats, including "freeform" and "Rock N Rhythm", which was a new wave/alternative rock station.


KNAC at 105.5 FM[edit]

The original KNAC was based in Long Beach, California and served Los Angeles and Orange counties on the FM band at a center frequency of 105.5 MHz. KNAC-FM had a variety of different formats. With a relatively weak radio signal and a small geographical area, KNAC never appeared in the Arbitron radio ratings. Outside the Los Angeles area, the station gained a huge following from heavy metal fans across the United States (via marketing and selling of t-shirts, stickers, compact discs, etc., with ads in heavy metal fan magazines). Before KNAC became popular under the heavy metal format, KNAC was branded as "The Knack."

KNAC was inducted into the Rock Radio Hall of Fame in the "Legends of Rock Radio-Stations" category in 2014.

Freeform era[edit]

In the late 1960s through the late 1970s, the Rock format KNAC ran was referred to as "freeform." A "freeform" radio format gives the on-air talent almost total control over what music to play, regardless of commercial concerns.

Popular performers of the time such as Avant-garde Experimental music artist Frank Zappa and comical theatre troupe The Firesign Theatre would stop by the stations studios to perform live or act as guest DJs.

During the early part of this era, the station's on-air personalities would often perform their shifts while smoking marijuana or after having consumed other illicit drugs and alcoholic beverages usually provided by the mainstream record promoters in an effort to get their albums noticed, as many of so-called "underground" stations of the era were also known to do across the country.

During the early days of KNAC some of L.A.'s diamonds in the rough were found. Most notably, Ron McCoy (6 A.M. to Noon) was not only the Program Director but also a seasoned musician with the hard rock recording group MSG who released Little Suzie Looker (Hooker) and other regional hits. Jim Ladd (12 noon to 6 P.M.), who later moved to KLOS, would become one of the first nationally syndicated jocks with The Inner View along with his partner Jerry Longdon (12 A.M. to 6 A.M.), who went on to become the announcer on Don Kirshner's ABC TV show In Concert (Ladd has a star on the Hollywood Walk of Fame). Frank Jolley (7 P.M to Midnight) was the first at KNAC to appear in the L.A. Arbitron with a very respectable showing. That performance brought him to the attention of Southern Pacific's KKDJ, who hired him. Jolley would later become a motion picture producer and mentor chairman of the Producers Guild of America. While at KNAC Jolley produced the first-ever feature film for the infant cable TV industry, winning him the 1972 National Cable Television Association Award for his production of ZEBRA-9.[3]

As a freeform radio station, KNAC featured typical rock artists of the day such as The Beatles, The Who, Rolling Stones, The Kinks, Grateful Dead, Led Zeppelin, Jimi Hendrix, Emerson, Lake & Palmer, Yes, Pink Floyd, Genesis, among others. With its liberal on-air format, however, KNAC also played album tracks or songs by the more popular rock music artists that other radio stations would generally not play. In addition, KNAC broadcast artists that received less airplay on more commercial rock stations. These artists could include anyone from San Francisco Bay Area psychedelic music act It's a Beautiful Day, blues rock group Electric Flag, to progressive rock acts such as the Moody Blues. Some rhythm and blues, soul and funk artists including Sly and the Family Stone, B.B. King, Chambers Brothers and Funkadelic were also heard on KNAC. The station's owners during that period were Jim and Claudia Harden.

By the middle of the 1970s the underground and counterculture movements of the 1960s were giving way to newer subcultures. In response, KNAC started to play more punk rock and new wave music. By the late 1970s, KNAC had begun to evolve into an eclectic alternative music station.

Alternative music era[edit]

During the first half of the 1980s, KNAC ran an alternative music format. KNAC was known in the early 1980s as "Rock N Rhythm 105.5 KNAC," developed by program director and afternoon drive DJ Jimmy "The Saint" Christopher. KNAC had a reputation as a cutting-edge station that played music that would later be added to stations like KROQ-FM. Bands like The Jam, Lone Justice, The Blasters, Elvis Costello and Dave Edmunds frequently visited the station's Long Beach studio. The station was considered influential in bringing about a thriving alternative music scene in Orange County and Long Beach. Members of Sublime and No Doubt would listen religiously every Sunday night to Roberto Angotti's "Reggae Revolution" from 1982 to 1986. Angotti was responsible for launching the careers of UB40, Steel Pulse, Pato Banton, Tippa Irie, Macka B, Mad Professor and many other British-based artists. He would venture to Jamaica to document the roots of reggae and recorded Peter Tosh's final interview before his untimely death. "Reggae Revolution" was the only radio show that survived the "Pure Rock" format change, as Angotti took the #1 Arbitron rated program to KROQ in Pasadena/Burbank, where he would remain until his move to 91X in San Diego in the early 1990s. Announcers Norm McBride, Sylvia Amerito, Mary Hogins, Kat Snow, Rick Stuart, Soup Sullivan, Roland West, Doug Adams and Manny Pacheco were a few of the popular DJs of this time.

Heavy metal era[edit]

In 1984, Fred Sands purchased the radio station at a bankruptcy auction.

Sands advertised in trade publications indicating his desire to hire a general manager with major market experience. Gary Price, an industry veteran, took the job and worked with Sands, who was intimately involved for the first year.

The antenna was moved from Signal Hill to Dominguez Hills, increasing the coverage area. In addition, Sands and Price ordered and installed state-of-the-art equipment for the new studio location and hired a new engineer.

With all the new improvements, Sands and Price recognized that KNAC needed a new sound as well. They selected a heavy metal format, targeting younger demographics. The birth of the "Pure Rock" format was in response to Iron Maiden selling out four shows at the Long Beach Arena on the Powerslave tour despite having received no significant radio airplay.[4] For the first time KNAC appeared in the Arbitron ratings, and once established, the station took in revenues of at least a million dollars per year. During the nine-year "Hard Rock" era, the KNAC program directors were Jimmy "The Armored Saint" Christopher, Tom Marshall, Pam Edwards, Gregg Steele and Bryan Schock. Among the music directors at KNAC during that time frame were Kevin Stephens, Ross Goza and Michael Davis, whose on-air moniker was "Jack the Ripper". Original on-air talent included Kat Snow as "Killer Kat," Lady Di, and Paul Lobster, Scorchin Scotty and Tawn Mastery took over Killer Kat's shift in 1986.

Bands in KNAC's playlist ranged from hard rock, traditional heavy metal, and NWOBHM (such as Black Sabbath, Led Zeppelin, Deep Purple, Iron Maiden, Def Leppard, Saxon, Judas Priest, AC/DC, Van Halen, Aerosmith, Alice Cooper, Kiss, Scorpions, Rush, Motörhead, Accept, Ozzy Osbourne, Dio and Armored Saint), progressive/power metal (such as Queensrÿche, Savatage, Lizzy Borden, Helloween, Dream Theater and Fates Warning), glam metal (such as Mötley Crüe, Bon Jovi, Skid Row, Poison, Whitesnake, Europe, Cinderella, Guns N' Roses and Tesla), thrash/crossover/groove metal (such as Metallica, Megadeth, Slayer, Anthrax, Suicidal Tendencies, Testament, Sepultura, Pantera, Metal Church, Exodus, Overkill, and Machine Head), and alternative metal or grunge (such as Faith No More, Alice in Chains, Soundgarden, Nirvana, Pearl Jam, Stone Temple Pilots, Tool and Biohazard).[2][5][6] KNAC was also responsible for helping launch the careers of previously low-key metal and hard rock bands, and is often credited for being the first radio station to promote new bands before their large-scale success, including Metallica, Guns N' Roses, Bon Jovi, Megadeth, Skid Row, Metal Church, Pantera, Alice in Chains, Soundgarden, Stone Temple Pilots and Poison.[4][7]

Sands and Price had worked together for about ten years. Sands sold the radio station in 1994 for five times what he paid for it in 1984.

Decline in popularity[edit]

By early 1992, heavy metal was losing ground to the growing popularity of various "Alternative Subcultures". In trying to keep up with the times, KNAC began adding more music acts popular in the alternative music genre to its playlist rotation. The majority of these were the more guitar-based grunge acts like Pearl Jam and Nirvana as well as punk acts like The Offspring.[8] While fans of the more adventurous and alternative earlier KNAC incarnation heralded a possible return to the previous format, many metal fans disliked KNAC's new sound, and the station, already in ratings trouble, saw further declines in audience shares. In 1994, management announced that KNAC was being sold and was switching to a Spanish-language music format. Heavy metal fans began tuning in again to find that KNAC had returned to its metal format for the few last months. Once again, headbangers could hear the classic metal they had not heard in a while, like Megadeth or Saxon.

Finally, the last day, February 15, 1995, arrived. James Hetfield and Lars Ulrich of Metallica appeared as guests to show their support. The last song to be played on KNAC was Metallica's "Fade to Black" (which was played during the first hour of the metal format 9 years earlier). At 1:59 p.m., KNAC went off the air with a short farewell message from general manager Gary Price: "This is KNAC Long Beach-Los Angeles. KNAC's Pure Rock is now signing off. Thanks for your support. You have been the greatest."[2] This was followed by seconds of silence before playing Mariachi Sol de Mexico's "Guadalajara".

The 105.5 frequency became Que Buena KBUE on March 1, 1995.[9]

Return via World Wide Web[edit]

In 1998, under the guidance of record company promoter Rob Jones, Jr.,[10] a group of former KNAC staffers revived the station via Internet at, utilizing the relatively new technology of streaming audio. The music resembles that of the "halcyon days" of the 1980s, complete with the white-on-black KNAC logo and other on-air features.

In early 2001, the KNAC.COM brand and website was licensed by arrangement to Clear Channel Interactive through a merger with Enigma Digital, previous licensor of the KNAC.COM brand and website in 1999. This license remained effective until November 2001 when Clear Channel shuttered its Internet division.


In June 2007, it was announced that KNAC DJ Tawn Mastrey had to leave her job as host of "Hair Nation" on Sirius Satellite Radio as a result of complications caused by Hepatitis C; she died from the disease on October 2, 2007.[11] To build awareness of Mastrey's situation, a KNAC-FM "On Air" reunion was held on July 28, 2007 at on the campus of Cerritos College in Norwalk, California, which included many of the original KNAC air personalities and Price. (Click here for a podcast of this reunion.)

To coincide with its 30th anniversary, two KNAC reunions took place on January 8–9, 2016. On January 8, former KNAC DJ Ted "Thrasher"/"Thrash Pie" Pritchard hosted a reunion show on his podcast "Thrashpie Radio", where many of the DJs, production directors, and other former employees of KNAC (including general manager Gary Price) shared their experiences at the radio station. The podcast also included audio clips from various KNAC events, as well as bumper sticker advertisements and promos.[12] On the day after, Los Angeles rock station KLOS hosted a five-hour KNAC tribute, titled "The KNAC Pure Rock Salute", hosted by former KNAC DJs Stew Herrera, Gonzo Greg, Long Paul, Thrasher and Dangerous Darren. The "Pure Rock Salute" duplicated KNAC's format, complete with jingles, bumper sticker advertisements, and many songs that had not been heard on terrestrial radio since KNAC signed off two decades earlier. It also included interviews with Scott Ian, Rob Halford and Lars Ulrich (who DJ'd on the final day of KNAC in 1995).

See also[edit]


  1. ^ "KNAC History". Retrieved 2012-11-06. 
  2. ^ a b c "KNAC's Final Fade to Black". Retrieved 2012-11-06. 
  3. ^ Free Form Radio: Kmet Fm History
  4. ^ a b " – Pure Rock On The 'Net – Look Out World, KNAC Is Coming For Ya!". March 27, 1998. Retrieved March 14, 2016. 
  5. ^ "KNAC A to Z". Retrieved 2013-08-31. 
  6. ^ "The Last KNAC Article". Retrieved 2013-08-31. 
  7. ^ "KNAC to return?". January 31, 2016. Retrieved March 14, 2016. 
  8. ^ "THE DAY THE MUSIC DIED : How Do You Go About Resetting Push-Button No. 1 When Your Favorite Radio Station Has Gone?". Retrieved 2012-11-06. 
  9. ^ "Call Sign History". Retrieved 2011-01-12. 
  10. ^ "Tuning in to radio's wired wave" USA Today December 23, 1998
  11. ^ KNAC.COM - News - Remembering Tawn
  12. ^

External links[edit]