The Sonarworks Reference 4 Headphone is a headphone calibration plug-in to correct uneven frequency response occurring due to physical constraints.

Sonarworks Reference 4 for headphones works by using a calibration profile accessible in your DAW via the dedicated plug-in to make your headphone sound as neutral as possible. The frequency correction is visible in the frequency graph of the plug-in with left and right drivers visible individually.

Sonarworks Reference 4 Headphones Main Features:

• Headphone calibration plug-in
• VST, AU, AAX, RTAS formats
• Average calibration curves for 32 headphone models
• Output clipping protection, Simulation section
• Transparent minimum, mixed or linear phase filters

The Sonarworks Reference 4 for headphones works natively with the following headphones:

• AKG: K141 mkII, K240 Studio, K271 MkII, K701, K702, K712 Pro, K812, K44, K77, Q701
• AIAIA: TMA 1PU foam pads
• Audeze: LCD-X, LCD-2
• Audio-Technica: ATH-M20x, ATH-M40x, ATH-M50x, ATH-M70x, ATH-R70x, ATH-M30x
• Beats: Mixr, Pro, Solo 2, Solo 3, Studio 2 (2nd generation), EP
• Beyerdynamic: DT770, DT880 Pro, DT990 Pro, DT1770 Pro, DT1990, T1
• Blue: Lola, Mo-Fi
• Bose: QuietComfort 25, QuietComfort 35
• Direct Sound: Extreme Isolation EX-25, Extreme Isolation EX-29
• Focal: Spirit Pro
• Fostex: T50RP
• Grado: SR60e
• Koss: Porta Pro Classic
• KRK: KNS8400
• Marhall: Major II, Monitor
• Oppo: PM-3
• Philipps: SPH9500
• Pioneer: HDJ-500
• Sennheiser: HD25 (70 Ohm), HD25 II, HD25 Light, HD201, HD202, HD280 Pro, HD380, HD598, HD600, HD650, HD700, HD800
• Shure: SRH840, SRH1840, SRH440
• Skullcandy: Hesh 2.0
• Sony: MDR-7506, MDR-7520, MDR-CD900ST, MDR-V150, MDR-XB650BT, MDR-XB950AP, MDR-XB950BT, MDR-ZX110, MDR-ZX310, MDR-ZX770BN
• Superlux: HD681
• Yamaha: HPH-MT220