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Large Proffesor

MC, producer, DJ, musician

Born in Harlem, New York City.  Also known as Large Pro and Extra P., is a Queens - raised  hip-hop rapper and record producer. He is also best known as a founding member of the influential underground hip hop group Main Source, and as mentor and frequent collaborator of Nas. ranked Large Professor #5 on its Top 50 Hip-Hop Producers list.


Producer, DJ, musician

Queens raised Toronto based K-Cut  produced for a wide range of hip hop artists including Big Pun, Maestro Fresh-Wes, Fu-Schnickens, Queen Latifah, and even NBA star Shaquille O'Neal. He also mentored another Toronto-based producer named Watts.

Our sound

The innovative production techniques and stunning lyrical sophistication of Main Source's Breaking Atoms (Wild Pitch) debut from 91 make it one of the greatest hiphop albums of all time, which in itself should justify the buzz about seeing these mythic figures in the flesh. But however influential their filtered bass lines and metaphor manipulation proved to be, Main Source's contribution to hiphop history isn't wrapped up in a single groundbreaking disc. They were instrumental in the evolutionary change from old school to new school.

Our Story

The group's first album, Breaking Atoms, featured conscious tracks such as "Looking at the Front Door," "A Friendly Game of Baseball," and "Watch Roger Do His Thing," as well as the first on-record appearance of Nas on "Live at the Barbeque," which also featured Joe Fatal and Akinyele. Because of business differences, the group broke up before its second album, tentatively entitled The Science could be released. However, Sir Scratch and K-Cut released a second album under the Main Source name titled Fuck What You Think, with new recruit Mikey D on vocals & featured another first on-record appearance for The Dog Pack which would later become the legendary Yonkers rap group The LOX on "Set If Off"; however, the album was shelved due to inner conflicts between the record label and group management. Large Professor went on to be an instrumental producer for hip hop stars such as Eric B. & Rakim, Pete Rock & CL Smooth, Nas, and Diamond D. He references his falling-out with Sir Scratch and K-Cut on A Tribe Called Quest's third album Midnight Marauders. On the track "Keep It Rollin'" he says, "I'm Uptown chillin', takin in this Grandmaster Vic blend/from the projects, the PJ's, fuck them two DJ's; Self mission."K-Cut also produced for a wide range of hip hop artists including Big Pun, Maestro Fresh-Wes, Fu-Schnickens, Queen Latifah, and even NBA star Shaquille O'Neal. He also mentored another Toronto-based producer named Watts.[2]

While Large Professor and K-Cut were still known as Paul Mitchell and Kevin McKenzie at John Bowne High School in Flushing, New York, the two crate-digging teens showed Gang Starr's DJ Premier how to use an SP1200 to get the most out of his record collection. That's right, they taught sample king Primo how to sample. They also schooled Mobb Deep and Busta Rhymes on the finer points of programming beats, and gave eager young MCs Nas, Akinyele, Fatal, Neek the Exotic and the Lox 's Jadakiss, Sheek Louch and Styles their first breaks on vinyl. 

Yet two years after Main Source's enormously promising debut, Canadian-born K-Cut and turntablist brother Sir Scratch returned to Toronto and created the second and final Main Source disc, 94's Fuck What You Think (Wild Pitch) without Large Professor. Parting of ways over business differences seamed  inevitable for the young Main Source. 

Extra P quietly went about the business of producing hip-hop classics. His uncredited shaping of Eric B. & Rakim's Let The Rhythm Hit 'Em -- using the panning and chopping sampling concepts he gleaned from the late Paul McKasty at Studio 1212 -- led to work on Kool G. Rap's Wanted: Dead Or Alive, along with A Tribe Called Quest's Midnight Marauders, Diamond D's Stunts, Blunts & Hiphop and Pete Rock & CL Smooth's Mecca And The Soul Brother, among others.  Equally K-Cut stayed busy producing and recording with Fu Schnickens, Queen Latifah, Shaquille O'Neal, Maestro Fresh Wes, 702 and Big Pun. The musical architecture and the influence of their creative process is still herald today in contemporary music circles.

25th Anniversary Breaking Atoms

Mass Appeal linked with Main Source to discuss the last 25 years of Breaking Atoms.

Fakin The Funk

Check out this great video  Get the latest info on legendary hip-hop group Main Source and subscribe now for updates on new music, merch and tour. music artists music band

Watch Rodger Do His Thing

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Lookin At The Front Door

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Just Hangin' Out

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Peace Is Not The Word to Play

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Large Pro: Rhythm Roulette

Rhythm Roulette, Mass Appeal presents Extra P, aka Large Professor. We took the legendary Queens producer to Human Head Records in Brooklyn, where he picked three random records to begin a game of Rhythm Roulette. 

K-Cut: On Supreme Genes Radio

Supreme Genes Radio founder/owner Steph sits down with K Cut of the legendary Main Source. The multi talented producer sheds light on the making of the classic "Breaking Atoms", and his extensive production and remix career.

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