Bose FREESPACE 4400, Руководство по обслуживанию

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PRODUCT DESCRIPTION
FreeSpace
®
4400 Business Music System
The Bose ® FreeSpace 4400 Business Music System is an integrated four-channel digital signal
processor and 400-Watt power amplifier for 70/100V business music applications.
The FreeSpace 4400 chassis provides a total of four source inputs (two Line In, one Mic/Line
and one Mic/Line/Page) to meet the needs of most business music installations. A Music on
Hold (MOH) output is also provided for simple integration into a phone system.
As a single component, the chassis provides all of the processing and control features required
for one to four zone business music applications. These features include:
• Auto Volume: When used with the optional FreeSpace Auto Volume Sense Mic, the 4400
system dynamically controls the program level in each zone so that the audio program
material can always be heard, regardless of the background noise.
• Scheduling: Allows you to program the 4400 system for automated on/off and source
selections according to time of day or day of week.
• Opti-Voice
®
Paging: Provides the appropriate sound level regardless of variations in
speech projection.
• Source Leveling: Automatically compensates for variations in source input levels.
• Dynamic Equalization: Maintains tonal balance at all listening levels.
• Room Equalization: Provides easy adjustment of tonal balance in each zone.
• Limiting: Protects loudspeakers from unwanted transient power loads.
• Signal Router: Meets the demands of most four-zone systems, allowing for any input signal
to be routed to any of the amplifier outputs.
• RS-232 Connection: Provides easy interfacing to your PC.
• Contact Closure Input: Allows remote power sequencing.
The integrated 400-Watt power amplifier features a patented power-sharing technology which
allocates power to each output.
For example, if you have a two-zone system that requires 5 Watts in zone 1 and 395 Watts in
zone 2, the FreeSpace 4400 system distributes the power based on those needs.
The 4400 also includes an easy-to-replace memory module, which holds a design file and the
current hardware configuration.
The Bose FreeSpace 4400 Business Music System is covered by a limited 5-year transferable
warranty.
WARRANTY