Tim O’Sullivan grew up in Arizona  making records in his friends living rooms.

In 2010 he moved to Los Angeles to work at Capitol Studios.  After a few years of working with and learning from engineers and producers such as Niko Bolas, Eric Valentine, and Jon Brion, Tim went freelance.

Artists Tim has worked with include: Karen O, N.A.S.A., Derrick Green (of Sepultura), Weird Radicals, Anderson Paak, RZA, American Darlings, The California Feetwarmers, Scientist, KRS-One, DMX, Lizzo, K-Flay, Money Mark (of the Beastie Boys), Childish Gambino,  and James Murphy.

Tim also runs O’Sullivan Audio, a recording studio installation, integration and audio wiring service.

O'Sullivan Audio clients include Vox Recording Studios (Woody Jackson), Barefoot Recording (Eric Valentine), Horse Latitudes (Robby Krieger and Micheal Dumas), and most recently United Recording’s new archive room http://www.unitedrecordingstudios.com/archiving.

In 2016 Tim came out to Brooklyn for a project, fell in love with the city and has been there making records ever since. 

You can learn more about Tim, and hear examples of his work at http://osullivanaudio.com/ 

To contact Tim, email him at tim.osullivan5@gmail.com

Mixing, Engineering, Mastering and Sound Design reels are below with links to Soundcloud and Youtube/Vimeo playlists.

Producing and Engineering Reel



American Darlings - My Mind's Eye - Producing Engineering and Mixing


California Feetwarmers - Producing and Engineering

N.A.S.A. - Iko feat. Lizzo - Engineering and Mixing

N.A.S.A. - Hey Hey Hey (feat. Spoke Mathambo and Donnis) - Engineering, Mixing, and Mastering

N.A.S.A. - Hide (Tropkillaz Remix) Feat. Childish Gambino and Aynzil Jones - Mixing

N.A.S.A. - Wake The Fuck Up (feat. Fatlip & Maximum Hedrum) - Engineering, Mixing, Mastering

N.A.S.A. - Meltdown (feat. DMX & Priyanka Chopra) - Engineering and Mixing

Lizzo - Ain't I - Engineering

N.A.S.A. - R.I.P. That Beat (feat Cory Enemy & Fatlip) - Engineering, Mixing, and Mastering

N.A.S.A. - I Shot the Sheriff (feat. Karen O) - Engineering and Mixing

K. Flay - Wishing it Was You - Engineering

N.A.S.A. - We Takin' Over (feat. Fatlip & Kate Boy) - Engineering and Mixing

PRoJect Gallery


Credits & Project Highlights:

  • Producing, Engineering, Mixing - NO ICE - Pending Title (Pending Release, 2017) 
  • Producing, Engineering, Mixing - Tchr - Pending Title (Pending Release, 2017) 
  • Producing, Engineering, Mixing - Real Loud  - Self-titled (2017, pending release)
  • Producing, Engineering, Mixing - Conversing with Oceans - "EP III" (2017, pending release)
  • Producing, Engineering, Mixing - American Darlings - "Glow" (2017)
  • Producing, Engineering, Mixing - Weird Radicals - "Flight of Fancy" (2017)
  • Producing, Engineering, Mixing - Weird Radicals - "John Lennon/Human Being Single" (2017)
  • Mastering - Dave Neff - "In Imperial County" (2017)
  • Engineering - Dakota Jones - "Part I" (2017)
  • Engineering - Dakota Jones - "Part II" (2017)
  • Engineering - Dakota Jones - "Part III" (2017)
  • Mixing - Genre - "A Change is Gonna Come" (2017)
  • Mixing - Genre - "Salute to the Comments Section" (2017)
  • Assistant Engineer - U2 - "Songs of Experience" (2017)
  • Engineering, Mix prep, Vocal Editing -  Dame D.O.L.L.A - “The Letter O” (2016)
  • Engineering, Mixing - Golden Alphabet  - "A Wedding Invitation" (2016)
  • Sound Design, Mixing -  The Cobra’s Curse at Busch Gardens Tampa (2016)
  • Producing, Engineering - California Feetwarmers - Silver Seas” (2016)
  • Mixing - Genre - “Legendary Rock Act” (2016)
  • Engineering, Mixing - Sam Spiegel featuring Ape Drums and Assassin -  “Mutant Brain” (2016)
  • Engineering, Mixing, Mastering - N.A.S.A. featuring Spoek Mathambo and Donnis - “Hey Hey Hey (2015)
  • Engineering, Mixing, Mastering - N.A.S.A. featuring Fatlip and Maximum Hedrum “Wake the F*ck Up” (2015)
  • Engineering, Mixing, Mastering - N.A.S.A. featuring Cory Enemy and Fatlip “R.I.P. That Beat” (2015)
  • Engineering, Mixing, - N.A.S.A. featuring DMX and Priyanka Chopra - “Meltdown” (2015)
  • Engineering, Mixing, - N.A.S.A. featuring Fatlip and KateBoy - “We takin' Over” (2015)
  • Engineering, Mixing - N.A.S.A. featuring Lizzo -“Iko” (2015)
  • Engineering - Lizzo - “Ain’t I” (2015)
  • Engineering, Mixing - N.A.S.A. featuring Sean Paul and Lizzo -“Hands Up Don’t Shoot!” (2015)
  • VO Engineering - “We Are Blood” (2015)
  • Engineering, Mixing- Score for Target “Marshmallow World” Commercial (2014)
  • Mixing - N.A.S.A featuring Childish Gambino and Aynzli Jones. - “Hide, Tropkillaz Remix” (2014)
  • Engineering- K. Flay - My Life as a Dog - “Wishing it was You” (2014)
  • Engineering, Mixing, Playback System for Live Performance - Original Score for 100% Lost Cotton, a one act play by Spike Jonze and Jonah Hill (2014)
  • Engineering, Mixing - N.A.S.A. featuring Karen O - “I Shot the Sheriff” (2013)
  • Playback System for Live Performance - Avicii - "Hey Brother" / "You Make Me" / "Wake Me Up” - YouTube Music Awards (2013)
  • Recorded and Mixed by - Score for “Bad Grandpa” (2013)
  • Engineering - Weast (Childish Gambino, Sam Spiegel, James Murphy, Fatlip, and Reggie Watts) “My Problem Friend is Ruining Our Night” (2013)
  • Engineering, Mixing - “Her - A Spike Jonze Love Story” Additional Music (2013)
  • Mixing - Golden Alphabet: Church Makeout Tour “I Don’t Even Know Who You Are Anymore” (2013)
  • Engineering - All In!  - A Tribute to JFA - Dirty Filthy Mugs - “Do the Hannigan” (2013)
  • Engineering, Talkbox - ADBC - “Trigger” (2013)
  • Assistant Engineer - Daft Punk “Random Access Memories” (2013)
  • Engineering - Cyntia Felton “Freedom Jazz Dance” (2012)
  • Assistant Engineer - Paul Mcartney “Kisses on the Bottom” (2012)
  • Assistant Engineer - Best Coast : The Only Place (2012)
  • Assistant Engineer - A Fine Frenzy “Pines” (2012)
  • Sound Design - DVS Shoes and the Uprising Creative Present “ScumFuck” (2012)
  • Additional Recording - Jilinda Palmer : Lazy Sun EP (2012)
  • Assistant Engineer - Seth Mcfarlane : Music is Better than Words (2011)
  • Sound Design - AWOL Nation Fall Harvest Tour Promo Video (2011)
  • Assistant Engineer - Michael Buble : Christmas (2011)
  • Stage Director - Claremont Folk Festival (2011)
  • Mixing and Sound Design - SLAM! Season 1 Fuel TV (2010)
  • Sound Design - Mystery Skateboards, Color Theory (2010)
  • Sound Design - Dickies Commercial “Slam Vs. the 874 Work pant : Pipe Bomb (2010)
  • Engineering, Keyboards, Vocals - GoldenAlphabet: A List of Our Worries (2011)
  • Assistant Engineer- Pastor Troy – Live DVD (2009)
  • Assistant Engineer- Sylvan Street –Self Titled (2009)
  • Assistant Engineer- The University of Arizona Wind Ensemble, Gregg I. Hanson Conductor: Towers of Power (2009)
  • Mixing - Various Artists: The Rodeo Sessions(2009) 





Peluso 2247 LE u47 

Cascade fat head modded with a Cloud ribbon and transformer

2x AKG c1000

M-audio Sputnik

Sennheiser E604

Shure SM7B

10x shure sm57

2x Shure sm81

Shure KSM32

2x Shure beta 58

Shure beta 56a

3x Shure beta 52a

Shure 545

Granelli G5790 (modified right angle Shure SM57)

1x Transformers less Shure SM57

2x Shure sm58

Shure 777

DIY Telephone mic

DIY NS10 Subkick

2x Audio Technica AT4040

AKG D112


Octavia MK219

Sennheiser ME66/K6 


Api 500series Lunchbox

2x Shadow Hills Mono GAMA Mic pre's

2x GoldenAge 573 pres

2x Lindell 576 comps 

2x Lindell PEX pultec style EQ's

UA Apollo with UAD Plugins

UA 4710-D

Focusrite ISA One

2x Ashly mx-406

Art tubefire 8

Tascam M30

Art Tube MP

Multivox MX-201 tape echo and spring reverb 

Univox Tape Echo



1965 Fender Pro Reverb

1973 Fender Deluxe Reverb

1965 Fender Deluxe Reverb Reissue

Heavily Modified Fender Champ reissue

Winfield Cyclone

Roland JC-40 Stereo Jazz Chorus

Orange Rockverb 50

Orange Micro Terror

Mesa Dual Rectifier

2x Silverstone 1482 Combo (1 modded with speaker out)

Kay 503

Kay 703

2x marshall 4x12 cabs

Federal University PA Speaker (wired as guitar cab)

Acoustic B100 bass combo amp


2x Pair Yamaha NS10 

Yamaha p2100 amp

Haffler trans-nova amp 

Pair Mackie HR824

Pair JBL 4410a

KRK 10-s subwoofer 

Audio Technical M50-s

Sony MDR-7506

Sehneiser hd-280

Ultimate Ears Capitol Studios RM reference monitors

Presonus Central Station w/remote

Presonus faderport fader controller

T.C. Electronic Clarity M meter 



1965 Ludwig Kit, 20" Kick, 8"x12" Tom, 14"x14" Floor Tom

Late 60’s Ludwig Kick (22x14)

Vintage Ludwig Acrolite Snare

Pork Pie Big Black Brass snare

Yamaha Musashi Snare



Moog Mini-Moog Voyager

DSI Mopho desktop

Nord Electro 4D

AKAI 88 Key Weighted Midi Controller

Korg Micro Korg

Casio SK-1

Harmony Acoustic Guitar

Fender Squire Pbass (heavily modified)

Fender Squire Strat

Fender Strat

Fender Jazz master

Fender Telecaster 

Fender J bass

Ibanez Artcore

Yairi DY91C acoustic 

Alverez parlor acoustic 

Epiphone WildKat (heavily modified)




Toy Piano

Tack Piano


Digitech Whammy

Vintage Morely Wah

Fulltone OCD

Fulltone Fulldrive 2

Fulltone Supa Trem

Fulltone Clyde Deluxe Wah

Dunlop Crybaby

Park Audio Fuzz Sound

Vintage Big Muff NYC Fuzz

Zvex Fuzz Factory

Xotic Effects RC Booster

Electro Harmonix Stereo Polyphase

TC Electronic Polyphonic Tuner

Degobah Systems Reamper

UTA Variable Capacitance Mic Cable

Tc electronics polytune mini

Xotic sp compressor

Mad professor little green wonder

Walrus mayflower

VFE blues king

Electro Harmonics POG2 

Electro Harmonics Deluxe Memory Man

Strymon Timeline

Strymon Blue sky

Boss RV5 reverb 

Sansamp Bass driver DI


For booking and all other inquiries please contact tim.osullivan5@gmail.com