For example, the J region sounds the most balanced of all, and its value is 0x00000000. Other regions have different values. For example, CN is 0x00000004, while MX3 (LA in the firmware itself) is 0x00000306, and these values are used when initializing the DAC. There are some additional regions in the destination tool that are not "coded" in the firmware for these newer devices anymore, yet they still produce changes. While using one of these other regions, the firmware will default to the J region, while the changes in sound are still there, as the region's value is used when initializing the DAC.