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Bose 4400 manual

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Table of contents for the manual

  • Page 1

    FreeSpace ® 4400 Business Music System OWNER ’S GUIDE[...]

  • Page 2

    Safety Information ii Please read this owner’ s guide Please take the time to follow the inst ructions in this owner’ s guide carefully . It will help you set up and operate your system pr operly and enjoy all of its advanced feat ures. Please sa ve this owner’ s guide for futur e refer ence. WA R N I N G : T o reduce the risk of fire or elec[...]

  • Page 3

    iii Important Safety Information Caution marks on the product These CAUTION marks are locat ed on the back of the product. The lightning flash with arrowhea d symbol, within an equilateral triangle, is intended to alert the use r to the presence of uninsu - lated dangerous voltage withi n the system enclosu re that may be of suffic ient magnitude t[...]

  • Page 4

    III Contents 1.0 FreeSpace ® 4400 Introduction . . . . . . . . . . . . . . . . . . . 2 1.1 The Bose ® FreeSpace ® 4400 Business Music System . . . . . . . . . . . . . . . . . . 2 1.2 FreeSpace 4400 system accessories . . . . . . . . . . 2 1.3 FreeSpace 4400 Installer™ software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.0[...]

  • Page 5

    2 of 66 1.0 FreeSpace ® 4400 Introduction 1.1 The Bose ® FreeSpace ® 4400 Business Music System The FreeSpace ® 4400 system is an integrated four -channel digital signal processor and 400-watt po wer amp lifier for 70/100V busi - ness music application s. The FreeSpace 4400 system has a total of four sour ce inputs, including two Line In, one M[...]

  • Page 6

    3 of 66 1.0 FreeSpace ® 4400 Introduction 1.3 FreeSpace 4400 Installer ™ software FreeSpace ® 4400 Installer™ softwar e is included with every FreeSpace 4400 system. The Fr eeSpace 4400 Installer software allows you to configur e har dwar e devices such as the Free Space 4400 system. The FreeSpace 4400 Installer software is de signed for use [...]

  • Page 7

    4 of 66 2.0 Designing with the FreeSpace ® 4400 System 2.1 Introduction This section describes the basic steps for designing a FreeSpace 4400 system and inclu des an ex ample. It is a ssumed that a com - plete loudspeaker design and la yout ha s alr ead y been cr eated. 2.2 Basic design steps There ar e five basic steps in designing a Fr eeSpace 4[...]

  • Page 8

    5 of 66 2.0 Designing with the FreeSpace ® 4400 System The following are examples of correct and incorrect sensing microphone placements: Installer’s Note: In applica tions where ceiling height is less than 12 ft (3.6 m), the microp hone sh ould be wall mounted. Mic Correct placement Incorrect placement Correct placement Incorrect plac ement Cei[...]

  • Page 9

    6 of 66 2.0 Designing with the FreeSpace ® 4400 System When mounting sensing mi cropho nes, always maintain a dis - tance of 6 ft (1.8 m) minimum between the micr ophone and the loudspeaker . Mic 6' 6' Mic Mic 6' 6' Ceiling Flush Wall Surface Ceiling Surface Sensing microphone ≥ 6 ft (1.8 m) Sensing microphone Sensing microph[...]

  • Page 10

    7 of 66 2.0 Designing with the FreeSpace ® 4400 System 2.2.3 Step 3 – Determine volume control requirements Decide which areas will have volume controls. Create a control map, such as the following, show ing the types of controls that will be used, and the areas in which they will be installed. A VM (Auto V olume/Mute) us er interfaces are avai [...]

  • Page 11

    8 of 66 2.0 Designing with the FreeSpace ® 4400 System 2.2.5 Step 5 – Determine the FreeSpa ce ® 4400 requirements Once you have identif ied the areas that use Au to V olume and specifically equalized Bose loud speakers, you can combine dif - ferent ar ea s based on the types of sources and contr o ls the y are using. Now we can take a look at [...]

  • Page 12

    9 of 66 2.0 Designing with the FreeSpace ® 4400 System 2.3 Auto Volume layout examples Large, open retail spac e with single music source FreeSpace ® Acoustimass module Model 16 (pendant mounted) Sensing microphone[...]

  • Page 13

    10 of 66 2.0 Designing with the FreeSpace ® 4400 System Hair salon (Small space with specific noise) FreeSpace ® 3 system Sensing microphone[...]

  • Page 14

    11 of 66 2.0 Designing with the FreeSpace ® 4400 System Hotel lobby 22 ft (6.7 m) 40 ft (12.2 m) Model 16 (flush mounted) Sensing microphon e[...]

  • Page 15

    12 of 66 3.0 FreeSpace ® 4400 Hardware Description 3.1 Front panel 3.1.1 Controls ST ANDBY – The ST ANDBY button switches the unit between standby and active. The c olor of the LED above the switch indicates the status: Amber = Unit is in sta n dby Unlit = Unit is active 3.1.2 Indicators SYSTEM ST A TUS – The SYSTEM ST A TUS LED indicates the [...]

  • Page 16

    13 of 66 3.0 Freespace ® 4400 Hardware Description 3.2 Rear panel 3.2.1 System controls SENSE MICROPHONES – Input connectors for sensing microphones used with the Auto V olume feature. RS-232 – Standard RS -232 communications port. Prov ides a communications interface for a PC running FreeSpace ® 4400 Installer ™ softwar e. The FreeSpac e 4[...]

  • Page 17

    14 of 66 4.0 Hardware Installation 4.1 Introduction This section provides instructions for installing the FreeSpace ® 4400 system har dware on a tabletop or in a rack. 4.2 Included accessories The following accessories are shipped with the FreeSpace 4400 system. • 2-terminal input connectors (7) – For wiring Auto V olume mics to the SENSE MICR[...]

  • Page 18

    15 of 66 4.0 Hardware Installation 4.5 Rack mounting the FreeSpace 4400 system The FreeSpace 4400 system r equires three 1.75" (44 mm) rack space units with a 16" (406 mm) in side depth (including the rear supports). When mounting, use four screws with washers to pr e - vent marring the front panel. Neoprene rubber washers are a good choi[...]

  • Page 19

    16 of 66 4.0 Hardware Installation 4.6 Installing accessories Installer’s Note: Disconnect the FreeSpace 4400 system from the AC (mains) power befo re making any input/o utput connections. 4.6.1 Sensing microphones Required accessory: FreeSpace ® 4400 System Auto V olume Mic Kit [PC042354 (U.S.), PC042355 (Euro)] Microphone installation: The wal[...]

  • Page 20

    17 of 66 4.0 Hardware Installation Assembly: User interface schematic - AVM (Auto Volume/Mute)user interface*: *FreeSp a ce ® 4400 System A VM 2-Zone User Interface ha s two separate 8-terminal co nnectors. Each connector uses the same wiring schematic r epresented above. User interface schematic - Page user interface: Recommended cable lengths: I[...]

  • Page 21

    18 of 66 4.0 Hardware Installation User interface wiring: Installer’s Note: Use only standard etherne t (Cat 5) cable to connect the user interface to the FreeSpace 4400 system. DO NOT use crossover (XOV) cables. For operating information, see “User Interface Ope ration” on page 49 . 4.6.4 User interface connections Connect the user interface[...]

  • Page 22

    19 of 66 4.0 Hardware Installation 4.7 System wiring Installer’s Note: Disconnect the FreeSpace 4400 system from the AC (mains) power befo re making any input/o utput connections. 4.7.1 Serial data communications Connect your PC to the FreeSpace 4400 system using a straight - wired serial data cable (D B9 male to DB9 female). 4.7.2 Remote standby[...]

  • Page 23

    20 of 66 4.0 Hardware Installation 4.7.3 LINE 1/LINE 2 source input Audio sources can be connected to the LINE 1 and L INE 2 inputs using one of the following cable types. 4.7.4 AUX MIC/LINE 3 source input A microphone or an audio source can be connected to the MIC/ LINE 3 input using one of t he following cable types. XLR Phone Plug (Balanced) RCA[...]

  • Page 24

    21 of 66 4.0 Hardware Installation 4.7.5 PAGE/MIC/LINE 4 source input A microphone or an audio source can be connected to the P AGE/ MIC/LINE 4 input using one of the following cabl e types. 4.7.6 DIRECT IN/CONTROL source input A microphone or an audio source can be connected to the DIRECT IN input using one of th e following cable types. The con -[...]

  • Page 25

    22 of 66 4.0 Hardware Installation 4.7.7 Amplifier ZO NE OUTPUT output s Loudspeaker systems in up to four zones can be connected to the ZONE OUTPUT amplifier outputs. 1. Install a two-terminal output connector (supplied) on the loudspeaker cable from each zone. 2. Plug the loudspeaker cable connectors int o the appropriate ZONE OUTPUT jack. Instal[...]

  • Page 26

    23 of 66 4.0 Hardware Installation 4.7.9 ZONE 4 LINE OUT output The ZONE 4 LINE OUT jack provides a line-level output that duplicates the program material on LINE 4. This may be used to feed another Bose ® amplifier installed for a large zone. The 12V control output is used to connect to Bose amplifier sequence inputs. 4.8 AC power connections The[...]

  • Page 27

    24 of 66 5.0 Using FreeSpace ® 4400 Installer ™ Software 5.1 Installing the software Insert the Fr eeSpace ® 4400 Installer ™ softwar e CD into the CD tray of your laptop PC. If the install pr ogram does not start automatically , open “My com - puter” from the desk top, double-c lick on the CD-ROM drive i con, and double-click on the “S[...]

  • Page 28

    25 of 66 5.0 Using FreeSpace ® 4400 Installer ™ Software 3. Launch the FreeSpace 4400 Installer ™ software. The FreeSpace 4400 Installer software splash screen will appear on your scre en. After the splash screen, a status dialog will appear and r eport the status of each installation stage. Programmer’ s Note: Clicking the Close button on t[...]

  • Page 29

    26 of 66 5.0 Using FreeSpace ® 4400 Installer ™ Software 5.2.1 No hardware detected If after launching the FreeSpace 4400 Installer ™ software a hard - ware device is not found, the status window reports a failure to detect connected hardware: In this case, clicking the Close button results in a blank har dware setup window . Programmer’ s N[...]

  • Page 30

    27 of 66 5.0 Using FreeSpace ® 4400 Installer ™ Software 5.3 The FreeSpace 4400 Installer™ software user interface The following describes the software user interface. Tool box Mode buttons Window sizing tools Work area Control pane System overview pane[...]

  • Page 31

    28 of 66 5.0 Using FreeSpace ® 4400 Installer ™ Software Tool box Mode buttons Window sizing tools System overview pane – After connecting your PC to a system, this pane will list the hardware de vice. After you select the device to establish a connection, the na me of the hardwa re device is highlighted. W ork area – The function s availabl[...]

  • Page 32

    29 of 66 5.0 Using FreeSpace ® 4400 Installer ™ Software 5.4 Set Up Hardware mode Using the Set Up Hardwar e mode, you can create new system configurations. The follow ing example displays th e softwar e front panel for the FreeSpace ® 4400 system. The hardware setup window consists of thr ee pan es: System overview pane – This pane displays [...]

  • Page 33

    30 of 66 5.0 Using FreeSpace ® 4400 Installer ™ Software 5.5 Set Up Schedule mode The Set Up Schedule mode allows you to automate a system by creating up to 64 events. T o select the Set Up Schedule mode, click the Schedule button under Set Up System. The featur es and controls of the Set Up Schedule window are as follows: Event list selection t[...]

  • Page 34

    31 of 66 5.0 Using FreeSpace ® 4400 Installer ™ Software 5.5.1 Setting the clock The date and time of the hardwar e clock is initially set in Eastern Standard Time . After your PC is connected to the har dware, check the clock and set it a s necessary for t he time zone and region of your installation. T o adjust the cl ock settings manually , c[...]

  • Page 35

    32 of 66 5.0 Using FreeSpace ® 4400 Installer ™ Software Adds a zone Source Change event This event allows you to cha nge the sour ce at a specified tim e on selected days of the week. Adds a zone Auto V olume event This event allows you to turn Auto V olume on or of f at a specified time on selected days of the week. Programmer’ s Note: Do no[...]

  • Page 36

    33 of 66 5.0 Using FreeSpace ® 4400 Installer ™ Software 5.6 Service Hardware mode The Service Har dware mode provides a list of any system errors that have occurr ed. T o view the Error Log, click the Service Hardwar e button. If you are alr e ady conn ected to hardware, the Err or Log is retrieved from the har dware and displayed in the window[...]

  • Page 37

    34 of 66 6.0 FreeSpace ® 4400 System Setup 6.1 Introduction This section provides instructions on setting up an installed FreeSpace 4400 system. T o set up a FreeSpace 4400 system you need a PC runnin g the FreeSpace ® 4400 Installer ™ software. 6.2 Connecting your PC to a FreeSpace 4400 system Before you can set up the Fr eeSpace 4400 syste m,[...]

  • Page 38

    35 of 66 6.0 FreeSpace ® 4400 System Setup 6.3 System se tup procedur e The first time you t urn on a FreeSpace 4400 system it loads its factory (default) configuration sett ings. These settings were stored in the Fr ee Spac e 4400 when it was manufactured. Once your PC is fully connected to the Fr eeSpace 4400 system, you can use the FreeSpace 44[...]

  • Page 39

    36 of 66 6.0 FreeSpace ® 4400 System Setup 2. Set the minimum output gain. This sets the desired minimum volume within a zone. Play a source that will be used in the zone and adjust the volume slider to t he desired mi nimum level. Raise the minimum gain stop up to the volume slider level. 3. Set the initial output gain . When the FreeSpace 4400 s[...]

  • Page 40

    37 of 66 6.0 FreeSpace ® 4400 System Setup Programmer’ s Note: If you are using the FreeSpace 4400 system to drive loudspeakers th at are not Bose ® products, choose the No EQ s etting or one of the four high-pass filter settin gs at the en d of the list. The No EQ setting helps protect t he FreeSpace 440 0 ag ainst loud- speaker transformer sa[...]

  • Page 41

    38 of 66 6.0 FreeSpace ® 4400 System Setup Input gain setup sequence 1. Set Opti-source ® Control to Off . This allows you make the initial gain setting. 2. Select the source Ty p e and determine if Mic Power +12V is needed. Set Mic Power to On if required. Leave it in the Off setting if you are using line inputs. 3. Start your input source and m[...]

  • Page 42

    39 of 66 6.0 FreeSpace ® 4400 System Setup 6.3.4 Source assign In the Source Assign control, you can choose which system source s will be available in ea ch zone. The Sour ce Assign control panel lists all system sources on th e left and zone sourc es on the right. Sources ar e assigned by moving them fr om the System Sources list to the ZONE Sour[...]

  • Page 43

    40 of 66 6.0 FreeSpace ® 4400 System Setup To set up paging in a zone In order to use paging in a zo ne, first you must assign the PA G E source to the zone. Then select the appropriate settings in th e Page Setup ( page 40 ) control pane. 6.3.5 Source EQ An input source EQ contr ol panel is ava ilable for inputs 3 and 4. This three-band equalizer[...]

  • Page 44

    41 of 66 6.0 FreeSpace ® 4400 System Setup Page setup with Opti-voice ® control off 1. Set Opti-voice to Off i n the Page Setup control panel. This enables the Ducking Depth and Release Time contr o ls . 2. Set the Ducking Depth to the amount in dB that the music will be reduced to once a page is triggered. 3. Set the Release Time to the length o[...]

  • Page 45

    42 of 66 6.0 FreeSpace ® 4400 System Setup Paging operation When a page signal is triggere d, the music signal is ramped down according to the duckin g time. The duckin g time is preset at 20 ms for Auto detection an d 0 ms for P TT triggering. The music level is reduced by th e ducking depth which can be adjusted using the ducking dept h control.[...]

  • Page 46

    43 of 66 6.0 FreeSpace ® 4400 System Setup 6.3.8 Dynamic EQ The Dynamic EQ contr ol panel provides an on/of f control to enable/disable Dynamic Equali zati on in the current zone. Dynamic EQ sho u ld on ly be used in either of the follow ing conditions: • The system contains exte nded bass or a FreeSpace ® 3 loud - speaker system. • A user in[...]

  • Page 47

    44 of 66 6.0 FreeSpace ® 4400 System Setup IMPORTANT: Before you calibrate Auto Volume • Make sur e that the system hardwa re installation is complete and that all component s (sense microphones, loudspeakers, and A VM (Auto V olume) u ser interfaces) a re properly con - nected. Remem ber that loudspeaker s must be dir ectly wired to the ZONE OU[...]

  • Page 48

    45 of 66 6.0 FreeSpace ® 4400 System Setup 5. Click Continue . Y our Auto V olume T racking settings are con - firmed. If the tracki ng settings are not correct, click the Can - cel button, change the settings, and start the setup process again. 6. Click Continue . All sources ass igned to the zone are listed in the window . Y ou are asked to conf[...]

  • Page 49

    46 of 66 6.0 FreeSpace ® 4400 System Setup 8. Click Continue to begin the sour ce calibration process. The source calibration pr ocess takes about three minutes per sour ce. For each sou r ce, the inpu t gain is measur ed and optimized, and the source level is activated. When this is done, the software displays the following confirmat ion. 9. Clic[...]

  • Page 50

    47 of 66 6.0 FreeSpace ® 4400 System Setup Programmer ’ s Note: If this process fails, a dialog similar to the following wi ll appear . Check the sensing microphone insta llation and make sure all sources are operating. Following a successfu l micropho ne calibration, the softwar e automatically flashes t he ha rdware to save th e configuration.[...]

  • Page 51

    48 of 66 6.0 FreeSpace ® 4400 System Setup When to repeat the Auto Volume calibration Y ou will need to repeat the Auto V olume process if: • Y ou reset a calibrated zone. • Y ou physically replaced sour ce hardware. • Y ou moved a sensing microphone. • Y ou changed a loudspeaker tap. • The source har dwa re has an output contr ol an d y[...]

  • Page 52

    49 of 66 7.0 User Interface Operation 7.1 Enabling keypad operation User interface keys for assigned sources are enabled only after flashing the hardware. Keys for any unassigned sources are auto - matically disabled after flashing the hardware. 7.2 Turning the system on When the FreeSpace 4400 system is in ST ANDBY , you can turn the system on by [...]

  • Page 53

    50 of 66 7.0 User Interface Operation A VM 1-Zone User Interface Example A VM 2-Zone User Interface Example MUTE / AUTO VOL MUTE / AUTO VOL MUTE / AUTO VOL MUTE / AUTO VOL W ALL PLA TE W ALL PLA TE WALL PLA TE W ALL PLA TE ZONE OUTPUT ZONE OUTPUT 2 ZONE OUTPUT 3 ZONE OUTPUT 4 ZONE 1 Loud- speakers ZONE 2 Loud- speakers ZONE 3 Loud- speakers ZONE 4 [...]

  • Page 54

    51 of 66 7.0 User Interface Operation 7.4 Page user in terface operation The Page user interface provides keys to select single paging zones, all paging zone s and ini tiate a page. Paging zones are not the same as output zones. After assigning the P AGE source to the output zones and choosing the appr opri - ate setti ngs in the Page Se tup contr [...]

  • Page 55

    52 of 66 8.0 FreeSpace ® 4400 System Troubleshooting 8.1 Introduction This section provides tr oubleshooting guidelines to use for solv - ing any problems you may encounter while installing and servic - ing FreeSpace 4400 systems. 8.2 FreeSpace 4400 hardware indicators 8.2.1 Normal operation These ar e the indication s of norm al operation. 8.2.2 [...]

  • Page 56

    53 of 66 8.0 FreeSpace ® 4400 System Troubleshooting 8.2.3 Amplifier fault The AMP OUTPUT LEDs work in pa irs (1 and 2, 3 and 4) and indi - cate the operating status of the four amplifier output channe ls. When an amplifier fault occurs, the amplifier mutes its outputs and indicates an error . After a sh ort period of time the amplifier will try t[...]

  • Page 57

    54 of 66 8.0 FreeSpace ® 4400 System Troubleshooting 8.2.4 Input clipping If clipping is occurring at the inpu t of an amplifier channel, the source LED will blink red. If this fault occurs: • Reduce the output gain of the sour ce, or • Using the FreeSpace 4400 Installer ™ so ft ware , red uc e th e input gain for the channel that is clippin[...]

  • Page 58

    55 of 66 8.0 FreeSpace ® 4400 System Troubleshooting 8.3 FreeSpace ® 4400 system Error Log The FreeSpace 4400 system Err or Log is displayed when the FreeSpace 4400 Installer ™ software is in the Service Har dware mode. 8.3.1 Contents of the Error Log The Error Log displays Fr eeSpac e 4400 system har dware vers ion numbers and record s all ala[...]

  • Page 59

    56 of 66 8.0 FreeSpace ® 4400 System Troubleshooting 8.3.4 Amplifier alarms Each amplifier section monitors its own operation and perfor - mance. If a fault c ondition occurs, it is reported in the Amplifier Alarm section of the Err or Log. Upper amplifier alarms af fect channels 1 and 2, and Lower ampl ifi er alarms affect channels 3 and 4. The a[...]

  • Page 60

    57 of 66 8.0 FreeSpace ® 4400 System Troubleshooting A number of fault conditions ca n be displayed in the Input Status section: DC Sense Fault : A power supply fuse, outp ut FET , amplifier mod - ule, or some combination of the above has blown. The unit should be replaced. Amplifier Module Fault : When the Amplifier Module fau lt occurs by itself[...]

  • Page 61

    58 of 66 8.0 FreeSpace ® 4400 System Troubleshooting 8.4 Common problems 8.4.1 Communications port error When you receive the communications port error dialog, the FreeSpace ® 4400 Installer ™ software was not able to locate a FreeSpace 4400 system on the COM 1 por t . This normally occurs due to one of thr ee reasons: • The PC and FreeSpace [...]

  • Page 62

    59 of 66 8.0 FreeSpace ® 4400 System Troubleshooting 8.4.3 User interface keypads do not operate correctly • Check wiring of RJ-45 conne ctors. • Check for breaks/shorts in cable. • Using the FreeSpace 4400 Installer ™ software, c heck the Err or Log for a peripheral contr oller error . 8.4.4 Bad sound in a zone User interfac e keypads exh[...]

  • Page 63

    60 of 66 8.0 FreeSpace ® 4400 System Troubleshooting 8.4.5 Auto Volume does not calibrate Auto V olume calibration may fail if the process cannot obtain an adequate source level. This may be due to: • Loudspeakers are tapped too high • Maximum output gain is less than -20 dB • Source is not operating • Source level is too low Calibration c[...]

  • Page 64

    61 of 66 8.0 FreeSpace ® 4400 System Troubleshooting To find the temporary file directory… For Windows 2000 , or Windows XP: 1. Right-click My Computer on the Windows desktop. 2. Select the Properties menu item. 3. Click the Advanced tab. 4. Click the Environment V ariables... button. 5. Scro ll down to the value of variable TEMP under “User v[...]

  • Page 65

    62 of 66 9.0 Restoring FreeSpace ® 4400 Microcontroller Code The microcontroller code r esidi ng in th e FreeSpace 4400 system hardware can be r estored using the FreeSpace 4400 Installer ™ software. 1. Using the FreeSpace 4400 front panel ST ANDBY button, place the unit in standby mode (the ST ANDBY indicator should be amber). 2. Press the ST A[...]

  • Page 66

    63 of 66 9.0 Restoring FreeSpace ® 4400 Microcontroller Code The firmware upgrade runs automatically and will notify you when it is complete. Once the upgrade is completed, select the Service Hardware mode and verify that the micr ocontroller version number is corr ect. For example: ------------------ --------------- ---------------- Microcontr ol[...]

  • Page 67

    64 of 66 10.0 Technical Specifications 10.1 Power amplifier Power output T otal shared power available for all channels: 40 0W Maximum power per channel: 400W Output configurations 70.7V or 1 00V nominal Frequency r esponse (@ 1 W att) 20Hz to 20 kHz ±3 dB Crosstalk >70 dB @ 1 kHz (T ested with AES 17 low-pass filter .) THD <1.0% (@ full rat[...]

  • Page 68

    65 of 66 10.0 Technical Specifications Serial command table Command System Zone 1 Zone 2 Zone 3 Zone 4 Off 0x84x000x030x000x000x 020x000x010x000x8a0x8 40x000x030x010x000x02 0x000x010x000x8b On 0x840x000x030x000 x000 x020x010x010x000x8b0x 840x000x030x010x000x0 20x010x010x000x8c Vo l u m e u p 0x840x000x030x000x020 x910x020x030x010x20 0x840x000x0 30x[...]

  • Page 69

    66 of 66 Bose ® Pr oduct Sales Conditions Limited W a rranty Policy and Conditions of Sale Bose Corporation The Mountain Framingham, MA 01701 What is cover ed: All parts defective in material and workma nship. The Limited W arranty for the Bose ® Fr eeSpace ® 4400 Business Music System covers the functionality of the product for its normal, inte[...]

  • Page 70

    66 ©2007 Bose Corporation, Th e Mountain, Framingham, MA 01701-9168 USA AM301433 Rev .0 0[...]