Bose 4400 6.3.8 Dynamic EQ, 6.3.9 Auto Volume

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6.0 FreeSpace® 4400 System Setup

6.3.8 Dynamic EQ

The Dynamic EQ control panel provides an on/off control to

enable/disable Dynamic Equali zation in the current zone.

Dynamic EQ sho u ld only be used in either of the fo ll owing

conditions:

• The system contains extended bass or a FreeSpace® 3 loud-

speaker system.

• A user interface is being used to control the volume and no

autotransformers are being used on the loudspeaker line.

When autotransformers are used, the system cannot accu-

rately monitor the output level of the system, and as a result,

cannot provide the appropriate response for the current listen-

ing level.

Factory default settings

Dynamic EQ compensates for a per c eived loss of bass response

at low listening levels. Based on the current output level of the

FreeSpace 4400 system, additional bass and high frequency will

be added.

For Dynamic EQ to operate correctly, make sure the hardware

is connected properly:

• An A VM user interface must be connected to the WALL PLATE

input connector.

• The loudspeaker(s) must be directly wired to the ZON E

OUTPUT connector.

•DO NOT USE AUTOTRANSFORMERS: DO NOT use an

autotransformer on the loudspeaker line to adjust the loud-

speaker volume. Dynamic EQ will not operate properly with this

added component.

6.3.9 Auto Volume

The Auto Volume function controls the volume level in a zone in

relation to its environmental noise. Using the Auto V olume control

pane, you can configur e and calibrate this fu nction for each zone.

Factory default settings

Dynamic EQ is set to Off.

ZONE OUTP UT 1

WALL PLAT E

CONNECTION 1

Loudspeaker

AVM

user interface

ZONE 1

4400 System

Auto Volume Auto Volume Tracking

Off Equal to background noise

ZONE OUT P UT 1

WALL PLATE

CONNECTION 1

Loudspeaker

AVM

user interface

Volume

Adjustment ZONE 1

4400 System

Auto Volume

On/Off states Auto Volume

Tracking settings

Auto Volume

calibration button

Auto Volume calibration

reset button

Contents

Main Safety Information Please read this owners guide Important Safety Information Caution marks on the product Important safety instructions Information about products that generate electrical noise Contents 1.0 FreeSpace 4400 Introduction 1.1 The Bose FreeSpace 4400 Business Music System 1.2 FreeSpace 4400 system accessories 1.0 FreeSpace 4400 Introduction 1.3 FreeSpace 4400 Installer software 2.1 Introduction 2.2 Basic design steps 2.2.1 Step 1 Determine source routing 2.2.2 Step 2 Determine Auto Volume requirements Guidelines for establishing Auto Volume zones Page Mic 6' 6' 6' 6' 2.2.3 Step 3 Determine volume control requirements 2.2.4 Step 4 Determine the loud- speaker requirements 2.2.5 Step 5 Determine the FreeSpace 4400 requirements 2.3 Auto Volume layout examples Page Hotel lobby 3.0 FreeSpace 4400 Hardware Description 3.1 Front panel 3.1.1 Controls 3.1.2 Indicators 3.0 Freespace 4400 Hardware Description 3.2 Rear panel 3.2.1 System controls 3.2.2 Audio source inputs 3.2.3 Amplifier outputs 4.1 Introduction 4.2 Included accessories 4.3 Placement guidelines 4.4 Shelf mounting the FreeSpace 4400 system 4.5 Rack mounting the FreeSpace 4400 system 4.6 Installing accessories 4.6.1 Sensing microphones Required accessory: Microphone installation: Recommended wire length: Assembly: 1300 ft (396 m) max. 4400 ABD User interface schematic - AVM (Auto Volume/Mute)user interface*: 4.6.4 User interface connections 4.7 System wiring 4.7.1 Serial data communications 4.7.2 Remote standby switch 20 of 66 4.7.3 LINE 1/LINE 2 source input XLR 4.7.4 AUX MIC/LINE 3 source input XLR Phone Plug (Balanced) 4.7.5 PAGE/MIC/LINE 4 source input 4.7.6 DIRECT IN/CONTROL source input Source Connector 4400 PAGE/MIC/LINE 4 Source Connector 4400 DIRECT IN/CONTROL 4.7.7 Amplifier ZONE OUTPUT outputs + 4.7.9 ZONE 4 LINE OUT output 4.8 AC power connections 4.8.1 Fuse type 4.8.2 AC POWER connection Source Connector 4400 ZONE 4 LINE OUT 5.1 Installing the software 5.2 Connecting to the FreeSpace 4400 system Page 5.2.1 No hardware detected 5.2.2 Incompatible microcontroller code 5.2.3 Sample design files Page Tool box Mode buttons Window sizing tools 5.4 Set Up Hardware mode 5.5 Set Up Schedule mode 5.5.1 Setting the clock 5.5.2 Adding events 5.5.3 Viewing and changing event settings 5.5.4 Removing events from the list 5.6 Service Hardware mode 6.1 Introduction 6.2 Connecting your PC to a FreeSpace 4400 system 6.3 System setup procedure 6.3.1 Output gain Output gain circuit block diagram Output gain setup sequence Page Gain Setup 6.3.2 Zone setup 6.0 FreeSpace 4400 System Setup To add a subzone Input gain circuit block diagram To delete a subzone 6.3.3 Input gain Input gain setup sequence Input gain controls 6.3.4 Source assign To assign a source to a zone To unassign a source To route a source to a zone To set up paging in a zone 6.3.5 Source EQ Source EQ operation 6.3.6 Page setup Fixed-zone pag i ng default settings Page setup with Opti-voice system on (default) 6.0 FreeSpace 4400 System Setup Page setup with Opti-voice control off Page setup controls Setting up Multi-zone paging Paging operation 6.3.7 Zone EQ ZONE EQ operation 6.3.8 Dynamic EQ 6.3.9 Auto Volume IMPORTANT: Before you calibrate Auto Volume Auto Volume setup procedure Page Page Resetting a calibrated Auto Volume zone When to repeat the Auto Volume calibration Auto Volume controls Auto Volume operation Changing Auto Volume Tracking after calibrating a zone 7.1 Enabling keypad operation 7.2 Turning the system on 7.3 AVM user interface operation 50 of 66 AVM 1-Zone User Interface Example AVM 2-Zone User Interface Example 7.4 Page user interface operation 52 of 66 8.1 Introduction 8.2 FreeSpace 4400 hardware indicators 8.2.1 Normal operation These ar e the indication s of normal operation. 8.2.2 System fault 8.2.3 Amplifier fault 54 of 66 8.2.4 Input clipping If clipping is occurring at the input of an amplifier channel, the source LED will blink red. 8.2.5 Direct input is active 8.2.6 No STANDBY and SYSTEM indicators 8.3 FreeSpace 4400 system Error Log 8.3.1 Contents of the Error Log 8.3.2 Hardware configuration 8.3.3 Power-on self-test results Bose FreeSpace 4400 Er ro r Lo g 8.3.4 Amplifier alarms Amplifier alarms using output voltage and current Amplifier alarms using rail voltage Amplifier alarms input and output status Input and output alarm history 8.3.5 Solving faults reported in the Error Log 8.4 Common problems 8.4.1 Communications port error 8.4.2 No audio in zone 59 of 66 8.4.3 User interface keypads do not operate correctly 8.4.4 Bad sound in a zone 8.4.5 Auto Volume does not calibrate 8.5 Customer support 8.5.1 Technical assistance 8.5.2 Reporting software bugs and issues To find the temporary file directory For Windows 2000, or Windows XP: For Windows NT: For Windows 98 9.0 Restoring FreeSpace 4400 Microcontroller Code IMPORTANT! Page 10.0 Technical Specifications 10.1 Power amplifier 10.2 Digital signal processing 10.3 Front panel indicators and control connections 10.4 Rear panel inputs, outputs, and controls 10.0 Technical Specifications Serial command table Bose Product Sales Conditions For how long: What we will do: How you can obtain Limited Warranty service: Remedies: