Pro Tools Setup for Surround For more information, see the following topics: Surround Mixing in Pro Tools Pro Tools Audio Connections for 5.1 Mixing 7.1 and 7.0 Formats Configuring Pro Tools for Multichannel Sessions Default I/O Selectors in I/O Setup 5.1 Track Layouts, Routing, and Metering Pro Tools HD and Pro Tools with Complete Production Toolkit let you work with surround formats up to 7.1.