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Sonarworks 12-41446 Reference 4 Studio Edition

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Reference 4 Studio Edition Speaker and Headphone Calibration Plug-In with Measurement Microphone

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The SONARWORKS Reference 4 Studio Edition with Measurement Microphone combines an XREF20 measurement mic with a speaker and headphone calibration plug-in, room measurement software, and the Systemwide app to assist audio engineers in mixing and mastering with consistent results. Whether in the comfort of your studio or on the road, this system allows you to take your monitoring reference with you and trust the mixes you create on your favorite speakers and headphones, with greater confidence.

The Reference 4 Studio Edition uses proprietary Automatic Microphone Positioning System (AMPS), Perceived Acoustic Power Frequency Response (PAPFR), and Headphone Acoustic Power (HAP) measurement technology to measure and adjust the frequency response of your speakers/headphones and precisely match flat- and neutral-sounding studio monitors in a well-treated studio.

The XREF20 mic features a pre-polarized, electret-condenser capsule with an omnidirectional polar pattern. Each microphone is individually calibrated, ensuring a flat frequency response with optimal precision. The Room Measurement software automatically locates the microphone position using acoustic trilateration, making the optimal placement of your mic effortless.

The interface's Calibration section gives you a choice of Flat, Custom, and Predefined target correction curves. The Simulate section transforms your headphones/speakers into any supported model set, with predefined simulations of popular headphones and speakers for quick and easy referencing on the fly. With zero-latency monitoring, the software can be used live when tracking vocals and instruments.

The included Systemwide app brings the convenience of system-wide speaker/headphone calibration. It lets you retain a neutral sound, no matter which app you are playing music through, whether it's iTunes, SoundCloud, Spotify, or other sources.

What's New in Reference 4 Studio Edition

  • Zero-latency processing
  • Speaker measurement module has been improved for faster workflow
  • Supported headphone library has grown to 101 models
  • Old profiles have been updated for even better accuracy


  • Includes DAW plug-in for headphones and speakers
  • Includes Systemwide app
  • Includes Measurement software for speakers
  • All products can be activated on three machines
XREF20 Measurement Mic
  • Pre-polarized, electret-condenser capsule with omnidirectional polar pattern
  • Each XREF 20 mic is individually measured by Sonarworks acousticians against an ANSI-certified measurement microphone
  • Accurate within the audible range and free from sample-to-sample irregularities
  • 20 Hz to 20 kHz flat frequency response
DAW Plug-In
  • Speaker reference sound in a studio setting—rids your monitoring of unwanted room coloration
  • Ensures that your mix translates more accurately to other monitoring systems
  • Headphone reference sound combined with zero-latency processing, for sound creation on headphones
  • Calibration profiles, filter modes, and predefined simulations of popular headphones and speakers, for quick and easy referencing
  • Calibrate section with Flat, Custom, and Predefined target correction curves
  • Simulate section transforms your headphones/speakers into any supported model set—select up to 4 different simulation curve presets and switch between them on the fly
  • Frequency response curve shows useful information regarding calibration
  • Curve is shown for both channels, before and after correction, including graphic representation of phase relationships and differences between left and right drivers
  • Choose between linear, mixed, and zero-latency filter calibration, for balancing CPU efficiency and filtering latency
  • AU, AAX Native, RTAS, and VST formats
Room Measurement Software
  • A user-friendly and streamlined process for measuring the room acoustics
  • Automatically locates the microphone position using acoustic trilateration
  • Uses proprietary Automatic Microphone Positioning System (AMPS) and Perceived Acoustic Power Frequency Response (PAPFR) measurement technology 
Systemwide App
  • Operates at OS level to calibrate your outgoing audio, for seamless production and referencing
  • Includes all DAW plug-in features
  • Hear how your tracks sound when played on a variety of music delivery platforms such as Spotify, YouTube, SoundCloud, and more
  • Gives you neutral reference sound when listening to music from non-DAW sources

Supported Headphones

  • AIAIAI TMA-1 Studio (PU foam earpads)
  • AKG K141 MKII
  • AKG K240 MKII
  • AKG K240 Studio
  • AKG K271 MKII
  • AKG K550 MKII
  • AKG K612 Pro
  • AKG K701
  • AKG K702
  • AKG K712 Pro
  • AKG K77
  • AKG K812
  • AKG Q701
  • Audeze LCD-2
  • Audeze LCD-X
  • Audio-Technica ATH-M20X
  • Audio-Technica ATH-M30X
  • Audio-Technica ATH-M40X
  • Audio-Technica ATH-M50X
  • Audio-Technica ATH-M70X
  • Audio-Technica ATH-R70X
  • Beats EP
  • Beats Mixr
  • Beats Pro
  • Beats Solo2
  • Beats Solo3 wireless
  • Beats Studio 2.0
  • Beyerdynamic DT 1770 PRO
  • Beyerdynamic DT 1990 PRO (analytical earpads)
  • Beyerdynamic DT 1990 PRO (balanced earpads)
  • Beyerdynamic DT 770 PRO 80 ohms
  • Beyerdynamic DT 770 PRO 250 ohms
  • Beyerdynamic DT 880 PRO
  • Beyerdynamic DT 990 PRO
  • Beyerdynamic T 1 (1st gen)
  • Blue Lola
  • Blue Mo-Fi (Off)
  • Blue Mo-Fi (On+)
  • Bose QuietComfort 25 (noise canceling off)
  • Bose QuietComfort 25 (noise canceling on)
  • Bose QuietComfort 35 (noise canceling off)
  • Bose QuietComfort 35 (noise canceling on)
  • Bose SoundLink wireless II (on)
Direct Sound
  • Extreme Isolation EX-25
  • Extreme Isolation EX-29
  • Focal Spirit Professional
  • Focal Elear
  • Fostex T50RP (MK3)
  • Fostex TH-X00
  • Grado SR60e
  • Grado SR80e
  • JBL Everest Elite 700 (Off)
  • JBL Everest Elite 700 (on, firmware 0.7)
  • KRK KNS6400
  • KRK KNS8400
  • Koss Porta Pro Classic
  • Marshall Major II
  • Marshall Monitor
  • Oppo PM-3
  • Philips SHP9500
  • Phonon SMB-02
  • Pioneer HDJ-500
  • PreSonus HD7
  • Samson SR850
  • Sennheiser HD 201
  • Sennheiser HD 202
  • Sennheiser HD 215
  • Sennheiser HD 25 70 ohms
  • Sennheiser HD 25 70 ohms (velour earpads)
  • Sennheiser HD 25-C-II
  • Sennheiser HD 25 Light
  • Sennheiser HD 280 Pro
  • Sennheiser HD 380 Pro
  • Sennheiser HD 598
  • Sennheiser HD 598 Cs
  • Sennheiser HD 600
  • Sennheiser HD 650
  • Sennheiser HD 700
  • Sennheiser HD 800
  • Sennheiser HD 800 S
  • Sennheiser PX 100-II
  • Shure SRH440
  • Shure SRH840
  • Shure SRH940
  • Shure SRH1440
  • Shure SRH1540
  • Shure SRH1840
  • Skullcandy HESH 2.0
  • Skullcandy Crusher
  • Sony MDR-1000X (headphones turned off)
  • Sony MDR-1000X (noise canceling off)
  • Sony MDR-1000X (noise canceling on)
  • Sony MDR-7506
  • Sony MDR-7520
  • Sony MDR-CD900ST
  • Sony MDR-V150
  • Sony MDR-XB650BT
  • Sony MDR-XB950AP
  • Sony MDR-XB950BT
  • Sony MDR-ZX110
  • Sony MDR-ZX310
  • Sony MDR-ZX770BN (noise canceling off)
  • Sony MDR-ZX770BN (noise canceling on)
  • SuperLux HD 681
  • V-Moda Crossfade II Wireless
  • V-Moda Crossfade M-100
  • Yamaha HPH-MT220
  • Yamaha HPH-MT5
  • Yamaha HPH-MT7
  • Yamaha HPH-MT8

Technical Specifications

System Requirements Mac: macOS 10.9 or later
Windows: 7 or later
1024 x 768 display

Audio interface with phantom power for condenser measurement microphone (available separately)

Sonarworks-supported headphones or Sonarworks individually calibrated headphones
Plug-In Compatibility AU, AAX Native, RTAS, VST
Capsule Pre-polarized electret-condenser capsule
Polar Pattern Omnidirectional
Frequency Response 20 Hz to 20 kHz
Power 48 V, phantom
Sensitivity -37 dB/Pa (14 mV)
Self Noise 24 dB
Signal to Noise Ratio 70 dB
Dynamic Range 106 dB
Maximum SPL 132 dB
Connector 1 x 3-pin XLR, male
Packaging Info
Package Weight 0.9 lb
Box Dimensions (LxWxH) 8.7 x 6.6 x 3.0"

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