Apple Logic Express 8 - Manual (Page 960)

960 Chapter 38 Working in the Environment
Bus Channel
You can only create bus channel strip objects in the Environment. In general, you will
not need to do so, as all audio bussing (send/return routing via the Send slots of
channel strips) is handled by aux channel strips.
It is primarily included for compatibility with older Logic Express versions, and for use
with certain audio hardware devices.
Note: File > Project Settings > Audio > Automatic Management of Channel Strip
Objects must be deactivated if you want to create Input channel strips (it is on, by
default).
Prelisten Channel Strip
The Environment’s Prelisten audio channel strip is used for monitoring in the Sample
Editor, Audio Bin, Loop Browser, and Browser. It is created automatically in each
project—you can find it to the right of the highest numbered audio channel strip.