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Effect
Gullfoss
Soundtheory
Gullfoss is an intelligent equalizer that uses a computational auditory perception model to improve a mix's clarity, detail, spatiality, and balance.
Specifications
- Official price
- EUR 178.00 (no USD price listed on the official store)
- Editions
- Gullfoss, Gullfoss Live, Gullfoss Master (share one installer)
- Processing latency
- ~20ms (Gullfoss & Gullfoss Master); ~2ms (Gullfoss Live)
- Sample rates
- 16 kHz to 384 kHz
- Channels
- Mono-to-mono or stereo-to-stereo (stereo compatible with M/S)
- EQ update rate
- ~300 equalizer updates per second; ~1000 auditory model updates per second
- System requirements
- macOS 10.9+ / Windows 7+, 64-bit host, OpenGL 3.2+; iLok License Manager for activation (no dongle required)
Last verified 2026-06-16
FAQ
What are the three Gullfoss editions?
Gullfoss (most mixing/mastering, ~20ms latency, lower CPU), Gullfoss Live (live mixing/tracking, latency below 2ms), and Gullfoss Master (extended auditory model tuned for mastering, finest parameter precision, higher CPU).
What plugin formats and operating systems does Gullfoss support?
AU, VST, VST3, and AAX Native in a 64-bit host, on macOS 10.9 or later and Windows 7 or later (Apple Silicon and Intel/AMD with SSE3 supported).
Does Gullfoss require a hardware dongle?
No. Activation uses the iLok License Manager and can be authorized to the iLok cloud or a machine; a physical iLok dongle is not required.