Contact: Dave Otero [Owner / Producer]

August 30th, 2012
-New Surroundings-

We've recently completed a redesign of the studio control room and other areas and finally have the photos to show you all! The brand new custom designed desk and monitor stands support the single 27" LCD screen and get the gear out of the sound path. The room got a fresh coat of paint and we've added over 700 sq ft of sound absorption paneling, corner traps, and diffusion to ensure the Barefoot MM27 monitors are heard in all their accurate and earth shaking glory. Also new are 8 channels of vintage Neve EQ / filters that pair nicely with the Crane Song Spider to help warm and shape tones on the way in, as well as an EVH 5150 III for edgy guitar distortion and a true Fender clean channel. New photos are in the slideshow above and you'll find a few full size images on our Facebook page.

The Cattle Decapitation album came out in May and landed the band with their first ever billboard top 200 position. We also completed mixing for the Arcanium full length "ONTOGENESIS" and they are currently in negotiations with labels for the release of the album. Watch for them on tour with Otep now and check out songs from both bands in the audio player above.

As always Darren and I are working hard to bring new and awesome projects into the studio so get in touch if you have any questions.



February 23th, 2012
-Sworn to the Death Grind-

It's been a while since the last update but we've been busy. Check out new tracks in the player from Enemy Reign, Navigator, Nightbringer, and Satan's Host.

Watch out for the new album from San Diego's Cattle Decapitation on Metal Blade Records. The band was out here for a taste of the cold and grim Colorado winter for 5 weeks. It was an awesome experience and the album sounds amazing. Fans new and old will be pleased. I'll have a track in the player as soon as I'm able.

We added some gear including a UAD-2 Quad card and a UA 6176 tube preamp / compressor combo. We're building more sound control and acoustic treatment into the entire studio to better capture solid tones at the source. The guest apartment also received a 52" HDTV upgrade along with a Playstation 3 for entertainment during down time.

That's about all for now and as always, stay trve!



March 20th, 2011
-Welcome to the new site-

Thanks to Justin Reich at The Antimatter Studio for his killer work on the new page. Check out our Facebook and Twitter pages by following the links above. Both are new, but expect them to flesh out in the months to follow. You can also comment on the site through Facebook below.

2011 has been busy so far finishing up albums for Vale of Pnath, Satan's Host, and Nightbringer. CTTTOAFF recorded a few tracks for a split release and I mixed 3 new Arcanium tracks for a digital only EP. I'm mixing an EP for a young talented band from Atlanta called Tetrarch this week. The tracks are sounding awesome and I'm excited to wrap it up.

The schedule for the year is starting to shape up so please contact Darren or myself if you're interested in a slot.


The brainchild of producer Dave Otero, Flatline Audio has been the focal point for Rock / Metal production in the Rocky Mountain region since its inception in 2001. While working with record labels such as Metal Blade Records, Relapse Records, Seasons of Mist, Prosthetic Records, Profound Lore, Willowtip, and Candlelight Records, Dave has helped launch new artists as well as refine the sound of seasoned musicians. Flatline Audio is making a name for itself on an international level by consistently providing high caliber productions unique to each project.

Owner / Producer Dave Otero brings a solid understanding of musicianship and modern production to craft a unique feel for each project. With 13 years of experience, he keeps sessions focused and creative without excessive downtime or holdups.  Focused on developing your band's sound, he applies his expertise when needed to song writing, arrangements, individual performance, vocal coaching, lyrical guidance, etc., all while keeping the entire project in view. Whether you're looking for production, mixing, mastering, or all three, Dave and Flatline will bring your vision to fruition and realize it's full potential, exceeding the industry standards.

Flatline Audio occupies a century old building and historical landmark in a growing arts district. A cozy but comfortable studio and control room provide ample room and a creative environment. As a fully residential studio with an on-site 650 sq. ft. apartment, we offer a convenient living space for the entire band during the recording process. Guests will find multiple restaurants and convenient stores within walking distance, and directly adjacent from the studio is a city park to relax and refuel when not recording. Access to bus and shuttle routes are only blocks away for transportation downtown or to the airport.

Workstation Computer and Software
• Custom high end Intel based Audio Workstation
• RME Fireface 800 Audio Interface
• Cubase 5.5 and Nuendo 5 Software
• Many 3rd Party plugins from Waves, Voxengo, Pod, Slate Digital, and more
• UAD1 and UAD2 DSP Cards with most available plugins
• Large library of custom and commercial drum samples
• Large selection of sample libraries for piano, strings, and other orchestral instruments

• Barefoot MM27 Studio Monitors
• AKG K240 Studio Headphones
• Sennheiser HD280 Pro Studio Headphones
• Audio-Technica ATH M50 Studio Headphones
• Furman HDS-6 Headphone Distribution System
• Home Stereo with custom speakers for mix testing

Outboard and Preamps
• Crane Song Spider 192 8ch preamp and converter
• Seventh Circle N72 Preamp
• Seventh Circle A12 Preamp
• 8ch racked Neve EQ/Filters
• Focusrite OctoPre 8ch Preamp and converter
• Universal Audio 6176 Tube Preamp / Compressor
• FMR Audio RNC 1773 Outboard Compressor x2

• Audio Technia ae3000 Condenser x3
• Audio Technia AT4040
• Audix D1
• Audix D6
• Audix i5 x2
• Oktava MK-012 condenser x3
• Sennheiser MD421II x4
• Shure Beta 57A
• Shure SM57 x2
• Shure SM7B
• Shure SM81 x2
• Electro Voice RE20
• DDrum drum triggers

Amps and Cabs
• Mesa/Boogie Dual Rectifier 3ch Solo Head
• Mesa/Boogie Dual Rectifier 2ch Trem-o-Verb
• Peavey 6505 Head
• Fender EVH 5150 III Head
• Krank Amplification Krankenstein + Head
• Peavey Firebass 700 Bass Head
• Mesa/Boogie Over-sized Recto 4x12 Guitar Cab
• Mesa/Boogie Traditional 4x12 Guitar Cab
• Peavey 4x10 Bass Cab

Other Equipment
• Kelley Modded Ibanez Tube Screamer
• SansAmp Bass Driver DI
• LittleLabs Redeye DI / Reamp Box
• Radial JDI Duplex MK4 Passive DI Box
• Korg DTR-1 Digital Tuner
• Other guitar/bass stomp boxes and effect pedals
• Many high quality mic stands and cables

• 650sf Apartment with full kitchen and bathroom
• Coffee maker, Microwave, and Refrigerator
• Quality home stereo with custom built speakers
• 52" High Definition TV with Basic Cable
• Playstation 3 or Xbox 360 with 2 controllers
• Access to shared laundry utilities
• Access to shared propane grill and yard
• Restaurants, Grocerys, Transportation, and City Parks all within close walking distance


• Cattle Decapitation - Monolith of Inhumanity
[P/E/M] Metal Blade Records
• Navigator - An Idea of Home
[P/E/M] Self Released
• Enemy Reign - Between Hell and Oblivion
[P/E/M] Self Released


• CTTTOAFF - Visceral EP
[P/E/M] Prosthetic Records
• Vale of Pnath - The Prodigal Empire
[P/E/M] Willowtip Records
• Satan's Host - By the Hand of the Devil
[P/E/M] Moribund Records
• No Fair Fights- The Sound of Burning Bridges
[M] Self Released
• Nightbringer - Hierophany of the Open Grave
[P/E/M] Seasons of Mist
• Satan's Host - Celebration
[P/E/M] Morbund Records
• Tetrarch - The Will to Fight EP
[M] Self Released


• Allegaeon - Fragments of Form and Function
[P/E/M] Metal Blade Records
• Cephalic Carnage - Misled by Certainty
[P/E/M] Relapse Records
• Diskreet - Engage the Mechanicality
[M] Seige of Adema
• Nightbringer - Apocalypse Sun
[P/E/M] The Ajna Offensive
• Martriden - Encounter the Monolith
[M] Self Released
• Demonica - Demonstrous
[M] Massacre
• The Breathing Process - Odyssey (Un)Dead
[P/E/M] Seige of Adema


• Satan's Host - Power - Purity - Perfection
[P/E/M] Moribund Records
• Arcanium - The Architects
[P/E/M] Self Released


• Enemy Reign - Means to a Dead End
[P/E/M] Self Released
• Incinerate - Anatomise
[M] Brutal Bands
• Cobalt - Gin
[P/E/M] Profound Lore
• Cobalt - Landfill Breastmilk Beast EP
[P/E/M] Profound Lore
• Nightbringer - Death and the Black Work
[P/E/M] Full Moon Productions
• Satan's Host - Great American Scapegoat
[P/E/M] Moribund Records


• Martriden - The Unsettling Dark
[P/E/M] Candlelight Records
• Cephalic Carnage - Xenosapien
[P/E/M] Relapse Records


• Cephalic Carnage - Anomalies
[P/E/M] Relapse Records
• Satan's Host - Burning the Born Again
[P/E/M] Moribund Records


• Cephalic Carnage - Lucid Interval
[P/E/M] Relapse Records
• Cephalic Carnage - Halls of Amenti
[P/E/M] Willowtip Records