FabFilter Pro-L 2 vs Signum Audio BUTE Loudness Suite 2
FabFilter Pro-L 2
fabfilter.comSignum Audio BUTE Loudness Suite 2
signumaudio.comSide by side
| Figure | FabFilter Pro-L 2 | Signum Audio BUTE Loudness Suite 2 |
|---|---|---|
| Price from | — | — |
| Free plan | — | — |
| Free trial | Yes | Yes |
| Open source | — | — |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| iOS | Yes | — |
| Plans published | 0 | 2 |
| Spec score · Audio Mastering Software | 8.1 (#9) | 7.7 (#16) |
| Founded | 2004 | 2017 |
| Headquarters | Amsterdam, Netherlands | 44 Ankerdine Crescent, London SE18 3LQ, United Kingdom |
| Purpose | Pro-L 2 is a true-peak limiter for mixing and mastering, designed for loudness and transparent sound. | BUTE Loudness Suite 2 is an audio toolkit for true peak limiting, metering and loudness normalisation in mixing and mastering workflows. |
| Support | FabFilter offers help files, PDF manuals, FAQs, a user forum, and direct sales and technical support by email; it says it aims to answer emails within one working day. | Signum Audio directs customers with product issues to [email protected]. |
| Trial | FabFilter says its downloads are fully functional 30-day trial versions that can be unlocked with a license key after the evaluation period. | The Stereo and Surround Suite trials are free and last 14 days. |
Plans
Signum Audio BUTE Loudness Suite 2
- Bute Loudness Suite 2 Stereo£199, paid once
- Bute Loudness Suite 2 Surround£249, paid once
In their own words
FabFilter Pro-L 2
FabFilter Pro-L 2 is a true-peak limiter plug-in for mixing and mastering, with tools for loudness control and transparent sound. It includes eight limiting algorithms and precise true-peak meters. Loudness metering supports EBU R128, ITU-R BS.1770-4, ATSC A/85, and TR-B32, while linear-phase oversampling is available up to 32x. For immersive and surround audio, it supports formats up to Dolby Atmos 9.1.6 with flexible channel linking. Processing options include adjustable look-ahead, attack, and release, external side-chain triggering, an optional DC offset filter, and dithering with three noise-shaping algorithms. FabFilter lists VST, VST3, Audio Units, CLAP, AAX Native, and AudioSuite formats. Desktop requirements are Windows Vista through Windows 11, or macOS 10.13 or later on 64-bit Apple Silicon or Intel; both require a compatible plug-in host or Pro Tools. An iPad version is linked through the Apple App Store. FabFilter offers a fully functional 30-day trial that can be unlocked with a license key. Support includes help files, manuals, FAQs, a user forum, and email sales and technical support.
Signum Audio BUTE Loudness Suite 2
Signum Audio BUTE Loudness Suite 2 has no write-up on Specifiction yet; its figures are above.