Bose DXA2120 Benutzerhandbuch

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The Bose

®

 FreeSpace

®

 DXA 2120 Digital Mixer/Amplifier 

 

integrates digital signal processing with two powered output 
channels. Designed as a mixer or router for business music 

 

applications, it features an LCD panel and controls behind the 
front cover for easy access.

The mixer/amplifier provides six inputs, including four Mic/Line 
inputs, one Page input, and one Direct input. The Direct input 
overrides all sources playing on the output channels. Each Mic/
Line input provides both RCA and Euroblock jacks.

Two output channels are wired for 120 watts at 4 ohms each. For 
70/100 volt applications, a jumper is required for proper configu-
ration. In 70/100V applications, the two outputs will operate at 
100 watts per channel. A third output is available for an auxiliary 
line out.

Additional features include:

• Signal Mixing: In Mixer Mode, simultaneously combines up to 

four inputs for any of the three outputs.

• Signal Routing: In Dual Mono Select Mode, one or two inputs 

go to each of two outputs in different zones and can be 
remotely selected. In Stereo Select Mode, two stereo sources 
go to one output zone and can be remotely selected.

• Opti-voice

 Paging: Provides a smooth transition between 

music and page signals.

• Dynamic Equalization: Maintains tonal balance at all listening 

levels.

• Bose Loudspeaker EQs: Provide equalization for Bose 

 

loudspeakers.

• AGC (Automatic Gain Control): When enabled, automatically 

compensates for low-level sources (i.e., microphone with low 
sensitivity).

• Room Equalization: Allows easy adjustment of tonal balance 

in each zone.

• Communications Port: Includes an RS-232 serial port 

reserved for system updates.

• Backup power: Provides an input terminal for a +24V DC 

backup power source.

Included connectors:

• 3-terminal input connectors: (4) for wiring source equipment 

to the four Mic/Line input Euroblock jacks.

• 4-terminal input connectors: (2) for wiring to the Page and 

Direct input jacks.

• 6-terminal input connector: (1) for wiring user interfaces to 

the Remote input jack.

• 5-terminal output connectors: (2) for wiring to the loud-

 

speakers.

• 3-terminal output connector: (1) for wiring to the AUX output 

jack.

Included placement aids:

• Non-skid rubber feet: (4) for stable placement on a solid, level 

surface.

• Rack ears: (2) with mounting hardware for installation in a 

rack.

Application-specific Bose accessories:

®

 

A user interface with a volume control knob that fits into a 

 

standard U.S. double-gang junction box.

®

 

A user interface that fits into a standard U.S. double-gang 
junction box. It features volume control and A/B select knobs 
for remote source selection.

1.0 Introduction.fm  Page 5  Monday, February 12, 2007  8:50 AM