Pure Music Low CPU Usage Settings (used in CPU measurement demonstration video)

• Memory Play enabled


• Upsampling off (the factory default setting)


• Dithering enabled (the factory default setting)


• Scrubbing disabled (factory default setting is enabled)


• Metering disabled (factory default setting is enabled)


• Update Track Play Position in iTunes option disabled (factory default setting is enabled)


• Reveal Playing Track option disabled (the factory default setting)


• All Memory Play Optimizations enabled (Advanced tab of Preferences) except Presume Smart Playlists


• iTunes was not the "foreground" application (Pure Music or Activity Monitor, etc. in front)


• Automatic Checking for Updates was disabled for iTunes and Apple Software Update


CPU measurements were performed with 2014 Mac Mini 3 GHz model with internal SSD, OS X El Capitan 10.11.6, iTunes 12.4.3.1, Zoom TAC-2R Thunderbolt DAC. File formats were Apple Lossless (44.1 kHz) and FLAC (192 kHz), though the file format will not affect the CPU usage (one of the benefits of Memory Play). CPU measurement video was recorded from a second computer via Screen Sharing.