Full confidence in sound

Reference 4 removes unwanted coloration from studio speakers and headphones.

"I know for a fact that I would have liked to have had it when I was mixing the last Coldplay album.”

Rick Simpson, an audio engineer who has worked with:
Coldplay, Jay-Z, Portishead, Kasabian, Black Rebel Motorcycle Club
Rick Simpson, an audio engineer who has worked with:
Coldplay, Jay-Z, Portishead, Kasabian, Black Rebel Motorcycle Club
Key features
Response Curve
See your room/headphone sound before and after the correction, look at your left and right channel response individually.
Step-by-step Measurement
For ultimate accuracy, software guides you through the process and automatically locates the microphone in your room.
3 filter modes
For ultimate flexibility, you can select between different filter processing modes.
Systemwide
Allows the use of calibrated sound for critical listening from any playback source.
Plugin
Reference sound combined with true zero-latency processing. AU, AAX Native, RTAS and VST formats.
Response Curve
See your room/headphone sound before and after the correction, look at your left and right channel response individually.
Step-by-step Measurement
For ultimate accuracy, software guides you through the process and automatically locates the microphone in your room.
3 filter modes
For ultimate flexibility, you can select between different filter processing modes.
Systemwide
Allows the use of calibrated sound for critical listening from any playback source.
Plugin
Reference sound combined with true zero-latency processing. AU, AAX Native, RTAS and VST formats.

Our customers love Reference.

Musicians. Producers. Audio Engineers.

Rated 4.56 out of 5 from 256 user reviews.
“Easy setup. Totally stable. Now I can trust my headphone mixes. I love the simulations as well for getting a feel for my mix on other systems.”
Aaron Russell
“I've poured lots of money and time into my love of music in the last 15 years. If I lost everything and had to start again getting Sonarworks Reference and a pair of calibrated headphones would be one of the first three things I’d do.”
Alex Taylor
“As someone working in a small, untreated, cube-shaped room with budget monitors, the Reference 3 plugin gives me an invaluable flat-response monitoring solution that I can always trust. 10/10!”
Cameron Muir

Three ways to a sound you can trust

Reference 4
Headphone Edition

Best suited for sound creation on headphones

$ 99 Buy now
DAW plugin for headphones
Systemwide app for headphones

Reference 4
Studio Edition

Full package to work on headphones and speakers in your studio
$ 249 Buy now
DAW plugin for headphones and speakers
Systemwide app for headphones and speakers
Measurement software for speakers

Reference 4
Premium Bundle

Reference 4 Studio Edition and amazing pre-calibrated Sennheiser HD650 headphones
$ 699 Buy now
DAW plugin for headphones and speakers
Systemwide app for headphones and speakers
Measurement software for speakers
Pre-calibrated Sennheiser HD650

…or try it out for free

No strings attached. Fully functional trial.

Download FREE trial

Measurement mic is required for Studio Edition.
Supported headphones are required for Headphone Edition.

Try it out. Hearing is Believing.

Plug your headphones in, select the model and take it for a spin


Your headphone frequency response curve

{{ selectedHeadphones || "Your headphone model" }}

Calibration is
headphone model specific

First select your headphone model

Just few moments… Player is loading

{{ currentTrack.src }}

Buffered... {{ currentTrack.loaded }} %

PlayingPaused... {{ currentTrack.position }}/{{ Math.round(currentTrack.media.duration) }} s

Got any questions?
Take a look at our Support Center