Powerful, transparent True Peak limiting

ISL 2 DSP takes True Peak limiting workflows to new efficiency levels, enabling professionals to harness the full performance of the Pro Tools | HDX system for seamless control of audio in post-production and broadcast. Both ISL 2 and ISL 2 DSP deliver world-class, broadcast-quality limiting and full True Peak compliance with international standards.

Highly versatile and informative visuals in ISL 2 include innovative waveform visualization and precedent-setting ducking and steering readouts for surround sound production. With ISL 2 on the master bus you can "set and forget", with the assurance of True Peak compliance at all times.


  • Loudness compatible true-peak limiting, mono to 7.1
  • Protect against distortion introduced by lossy codecs
  • Set True-Peak level directly from the spec, ISL takes care of the rest
  • Unique channel linking visualizations & inter-dependency controls
  • Auto-release intelligently adjusts recovery for low frequency content
  • Clear, intuitive operation and cross platform functionality
  • Horizontal compact view and vertical view modes
  • Adjustable ballistics and color splits

System requirements

Windows Windows 7 and later
Mac Mac OS 10.7.x and later
Pro Tools Pro Tools | First,  Pro Tools 10.x and later
Max Sample Rate 96 kHz
Copy Protection Requires iLok


ITU-R B.S. 1770 guidance

This product is tested by the Seller for support of current versions of the indicated Avid products and operating systems. For compatibility questions related to older systems, please contact the Seller.

Your choices regarding cookies on this site

Cookies are important to the proper functioning of a site. To improve your experience, we use cookies to remember sign-in details and provide secure sign-in, collect statistics to optimize site functionality, and deliver content tailored to your interests. Click "Agree and proceed" to accept cookies and go directly to the site, or click "Find out more" to get more information about cookies and learn how to manage their settings or disable cookies on your computer. Please note that disabling cookies may have an adverse effect on your use of Avid’s sites. For example, the Avid Online Store will not work without cookies.

Find out more

Agree and proceed