Bose DXA2120 Benutzerhandbuch

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3.0 Operation Mode Options
3.1 Operation mode options
Before making connections, decide how you want the sound 
sources distributed throughout the site. This depends on whether 
the area is specified for one or two zones, the kind of coverage 
needed, and the sources to be used.
The mixer/amplifier provides three different modes of operation.
• Mixer  Mode
In Mixer Mode, the system can mix up to four mic/line inputs to 
each of the two output channels for use in one or two zones.
• Stereo  Select  Mode
In Stereo Select Mode, with up to two stereo sources 
 
connected and using both output channels, the system 
 
provides stereo sound to a single output zone. Refer to “Stereo 
Select Mode” on page 9.
• Dual Mono Select Mode
In Dual Mono Select Mode, with up to two input sources 
 
connected to each of the two output channels, the system 
 
provides audio in two zones. Refer to “Dual Mono Select 
Mode” on page 9
.
3.1.1 Mixer Mode
Line-level sources can be connected using the RCA jacks or 
Euroblock connectors. The system sums the two RCA jacks for 
each input to mono.
Microphones must be connected using the Euroblock connec-
tors. Make sure the MIC/LINE switch is set to MIC.
Mixer mode sources can be routed to either or both outputs, as 
shown below.
Sources can be independently routed to the auxiliary output.
In normal operation, the OUTPUT 1 and 2 gain controls are used 
to control the gains of OUTPUT 1 and 2, respectively. In this 
mode, you have the MASTERVOL LINKED option, which allows 
you to configure the OUTPUT 1 gain control to control the gains 
of OUTPUT 1 and 2 simultaneously.
Note: With use of a user interface, the chassis output gain knob is 
 
disabled.
Use of one or two volume control user interfaces is optional. For 
further detail, see “Mode user interface requirements” on 
page 31.
3.0 Planning the Install.fm  Page 8  Monday, February 12, 2007  8:51 AM