YOU CAN FIX A LOT IN THE MIX

if you can hear it right

ARE YOU MIXING IN STEREO OR 360?

Flat sound - Unit Specific Calibration is included with all headphones. Your mix balance will sound as intended on any speakers or headphones. No need for the car check.

STEREO MIXING

The new S4X 1.3 calibrated headphones

Designed and tuned for stereo mixing, mastering
and producing music.

BUY NOW

360 mixing

The new S5X 1.1 calibrated headphones

Designed and tuned for spatial mixing
e.g. Dolby Atmos and Sony 360 Reality Audio.

BUY NOW

WHY CALIBRATION MATTERS

FLAT SOUND

Would you ever use a generic calibration for your studio? An average of a few rooms similar to yours? Of course not.

So why would you compromise on calibration when it comes to headphones?

With unit specific calibrated headphones identifying mix mistakes is easy and worrying about translation is a thing of the past.

CALIBRATION ON/OFF

TRUSTED BY PROFESSIONALS LIKE YOU

★★★★★

“After listening and mixing using the S4X headphones for 2 day’s, I finally realized that I could mix using these headphones alone!Using the S4X headphones pretty much has eliminated the need to do the "car check" for me. These headphones are flat and revealing as well as comfortable for long term use. I highly recommend them!!”

KEVIN KWIZ RYAN

Beyoncé - 2013/15 Superbowl, Mary J.Blinge, Busta Rhymes, Missy Elliot,...

★★★★★

"The Ollo S4 X has completely revolutionized the way I listen to the sonic arrangement of a song. It’s like having a sonic microscope. The level of detail and depth they get is astonishing."

MATTEO MARCIANO

Lang Lang, 2Cellos, Anna Kendrick, Pitch Perfect, John Wick, Despicable me2, Alvin and the Chipmunks, NYU,...

★★★★★

"I love the depth and clarity I get in my mixes with the S4x. Especially in the kick and snare which is often so hard to get a punch in headphones that will translate to a speaker. But more then anything, they really make it fun to listen to music for a long period of time!"

John Escobar - OLLO Audio Ambassador
JOHN ESCOBAR

Independent Producer/engineer, Professor - Berklee College Of Music

★★★★★

"These are the best sounding headphones I’ve ever heard… At least to my ears… Same sort of way that Alan Sides’  main monitoring systems at the Oceanway studios always just felt like an extension of my ears... as do these sexy sounding (and looking) ear pillows."

WARREN RIKER

3x Grammy winning, Lauryn Hill, Down, Michael Jackson, The Fugees, Santana, Anders Osborne,...

★★★★★

"Best headphones for accuracy and clarity."

JEFF TAYLOR MADJEF

Janet Jackson, Michael Jackson, Lionel Richie, Mariah Carey, Jam&Lewis, Madjefmusic, Kush,...

★★★★★

"The HPS S4 respects all of the depth, width, air, tight bass, space and detail that I work so hard to create in a mix. I’ve compared them with the leading competitors and OLLO win! Excellent reference headphones for mixing and mastering. Switching between the headphones and my speakers is effortless. And they are really light in weight and comfortable for long periods of use .... and they look cool too! Job well done!"

ADAM MOSELEY | OLLO Audio ambassador
ADAM MOSELEY

U2, Beck, Rush, Nikka Costa, Roxette, The Cure, John Cale, Spike Jonze, UCLA and Berklee,...

★★★★★

"These are my favorite headphones. They sound great and are very comfortable. I’m able to use them for long hours without listening fatigue or discomfort. They come in “closed back” for recording and “open back” for mixing duties."

GARY NOBLE

3xGrammy winning, Amy Winehouse, Joss Stone, Jessie J, James Arthur, Sean Paul, Estelle,...

★★★★★

"These headphones feel like you're listening to speakers. For an engineer, and a mixer, to have that same kind of feeling like they're sitting in front of their favourite pair of monitors, is priceless."

SEAN TALLMAN

Usher, Miley Cyrus, Gwen Stefani, Rihanna,...

★★★★★

“I love my S4X reference headphones: they sound fantastic, are reliable and trustworthy, sit comfortably on my head and around my ears, don't give me ear-fatigue and don't press my ear onto the glasses allowing for continued and comfortable use.”

MARC URSELLI

U2, Foo Figthers, Nick Cave, Sting, Lou Reed, Keith Richards,...

Built to last

Durability backed up with a
5yr limited warranty.

Serviceability

All parts are exchangeable using home tools.

Flat sound

Calibrated frequency response for spatial, stereo or recording projects.

ENDORSEMENT

NOW OPEN

Pitch your idea for collaboration and get an offer.

Learn more

FLAT SOUND IN ANY ROOM

Worldwide

STUDENT

Apply for student status with OLLO Audio.

Apply

Hand built on the edge of the Alps

Reseller network

Where to buy

Check for your nearest reseller

Check the list

5 YEARS LIMITED WARRANTY

Special offers

BACKSTAGE

All our customers have access to the backstage. If you purchased with Thomann, Amazon, Gear4Music etc. you need to ask for access.

GET ACCESS

TEST THEM FOR 90 DAYS

S4X Stereo

EXCELLENT for stereo mixing 🎬
GOOD for spatial mixing
POOR for recording

Start 90 days trial

S5X 360

EXCELLENT for spatial mixing 🎬
GOOD for stereo mixing
POOR for recording

Start 90 days trial

S4R Recording

EXCELLENT for recording 🎬
GOOD for stereo mixing
POOR for spatial mixing

Start 90 days trial