One feature that most stereo receivers had (and most still have) is anA/B speaker switch.
This switch allows astereo receiverto connect to an extra set of speakers.
Zone 2 Applications
The Zone 2 feature is usually limited toanalog audio sources.
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Some mid-range and high-end receivers also provideHDMI audio and videooutput for Zone 2 setup.
Powered vs. Line-Out
The Zone 2 feature comes in two flavors: powered and line-out.
When Zone 2 is on, the primary zone system defaults to 5.1 channels.
The added speakers then connect to the external amplifier.
Select home theater receivers provide both powered and line-out options for Zone 2.
