Bose Acoustimass User Manual

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The Bose® Acoustimass® 15 Home Theater Speaker

System

Owner’s Guide

October 22, 2001

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Introduction

Thank you

We appreciate your choice of the Bose® Acoustimass® 15 home theater speaker system. With these Virtually Invisible® speakers you will surround yourself with realistic sound, with a minimal amount of equipment. Your system features new third generation Acoustimass cube speaker arrays, a product of the continuous research and development at Bose Corporation. These cube speakers deliver more lifelike sound and better overall performance, yet are smaller than their predecessors.

Your speaker system is completely compatible with the most modern home theater receivers and program material. Bose proprietary Integrated Signal Processing and dedicated bass amplification assure hi-fidelityand bass for all channels regardless of your home theater receiver’s settings.

Important Information

WARNING: To reduce the risk of fire or electric shock, do not expose the Powered Acoustimass module to rain or moisture.

CAUTION: To prevent electric shock, match wide blade of plug to wide slot, insert fully.

CAUTION

RISK OF ELECTRICAL SHOCK

DO NOT OPEN

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,

DO NOT REMOVE COVER (OR BACK).

NO USER-SERVICEABLEPARTS INSIDE.

REFER SERVICING TO QUALIFIED PERSONNEL.

These CAUTION marks are located on the Acoustimass module:

The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated dangerous voltage within the system enclosure that may be of sufficient magnitude to constitute a risk of electric shock.

The exclamation point within an equilateral triangle, as marked on the system, is intended to alert the user to the presence of important operating and maintenance instructions in this owner’s guide.

Additional safety information

See the additional instructions on the Important Safety Information page enclosed with this owner’s guide.

Please read this owner’s guide

Please take the time to follow this owner’s guide carefully. It will help you set up and operate your system properly, and enjoy all of its advanced features. Save your owner’s guide for future reference.

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Important Safety Instructions

1.Read these instructions – for all components before using this product.

2.Keep these instructions – for future reference.

3.Heed all warnings – on the product and in the owner’s guide.

4.Follow all instructions.

5.Do not use this apparatus near water or moisture – Do not use this product near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, near a swimming pool, or anywhere else that water or moisture are present.

6.Clean only with a dry cloth – and as directed by Bose® Corporation. Unplug this product from the wall outlet before cleaning.

7.Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions – To ensure reliable operation of the product and to protect it from overheating, put the product in a position and location that will not interfere with its proper ventilation. For example, do not place the product on a bed, sofa, or similar surface that may block the ventilation openings. Do not put it in a built-in system, such as a bookcase or a cabinet that may keep air from flowing through its ventilation openings.

8.Do not install near any heat sources, such as radiators, heat registers, stoves or other apparatus (including amplifiers) that produce heat.

9.Do not defeat the safety purpose of the polarized or grounding-typeplug. A polarized plug has two blades with one wider than the other. Agrounding-typeplug has two blades and a third grounding prong. The wider blade or third prong are provided for your safety. If the provided plug does not fit in your outlet, consult an electrician for replacement of the obsolete outlet.

10.Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.

11.Only use attachments/accessories specified by the manufacturer.

12.Use only with the cart, stand, tripod, bracket or table specified by the

manufacturer or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.

13.Unplug this apparatus during lightning storms or when unused for long periods of time – to prevent damage to this product.

14.Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way: such as powersupply cord or plug is damaged; liquid has been spilled or objects have fallen into the apparatus; the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped – Do not attempt to service this product yourself. Opening or removing covers may expose you to dangerous voltages or other hazards. Please call Bose to be referred to an authorized service center near you.

15.To prevent risk of fire or electric shock, avoid overloading wall outlets, extension cords, or integral convenience receptacles.

16.Do not let objects or liquids enter the product – as they may touch dangerous voltage points or short-out parts that could result in a fire or electric shock.

17.See product enclosure for safety related markings.

Information about products that generate electrical noise

If applicable, this equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, this is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, you are encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna.

Increase the separation between the equipment and receiver.

Connect the equipment to an outlet on a different circuit than the one to which the receiver is connected.

Consult the dealer or an experienced radio/TV technician for help.

Note: Unauthorized modification of the receiver or radio remote control could void the user’s authority to operate this equipment.

This product complies with the Canadian ICES-003Class B specifications.

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Important Safety Instructions

18.Use proper power sources – Plug the product into a proper power source, as described in the operating instructions or as marked on the product.

19.Avoid power lines – Use extreme care when installing an outside antenna system to keep from touching power lines or circuits, as contact with them may be fatal. Do not install external antennas near overhead power lines or other electric light or power circuits, nor where an antenna can fall into such circuits or power lines.

20.Ground all outdoor antennas – If an external antenna or cable system is connected to this product, be sure the antenna or cable system is grounded. This will provide some protection against voltage surges and built-up static charges.

Section 810 of the National Electrical Code ANSI/ NFPA No. 70 provides information with respect to proper grounding of the mast and supporting structure, grounding of the lead-inwire to an antenna discharge unit, size of grounding conductors, location ofantenna-dischargeunit, connection to grounding electrodes, and requirements for the ground electrode. Refer to the antenna grounding illustration on this page.

Antenna grounding

Example of antenna grounding as per National Electrical Code, ANSI/NFPA 70.

Antenna lead in wire

Ground clamp

Antenna discharge unit

 

 

(NEC Section 810-20)

Electric service

Grounding conductors

(NEC Section 810-21)

equipment

Ground clamps

Power service grounding electrode system

(NEC ART 250, Part H)

Note to CATV system installer

This reminder is provided to call the CATV system installer’s attention to Article 820-40of the NEC (of USA) that provides guidelines for proper grounding. In particular, it specifies that the cable ground shall be connected to the grounding system of the building, as close to the point of cable entry as is practical.

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Contents

Where to find...

Introduction

 

 

Thank you .....................................................................................................................

 

2

Important Information ...................................................................................................

 

2

Contents

 

 

Where to find ................................................................................................................

 

3

For your records ...........................................................................................................

 

3

Setting Up

 

 

Before you begin ...........................................................................................................

 

4

Unpack the carton ........................................................................................................

 

4

Placing your speakers to achieve realistic home theater sound ..................................

 

5

Center cube speaker ...........................................................................................

 

5

Left and right front cube speakers ......................................................................

 

6

Surround cube speakers .....................................................................................

 

6

Powered Acoustimass® module ..........................................................................

 

6

Connect the speakers ...................................................................................................

 

7

Connect the Powered Acoustimass module to the center

 

 

and front cube arrays ...................................................................................

 

7

Connect the Powered Acoustimass module to the surround cube arrays

......... 8

Connect the Powered Acoustimass module to the receiver ...............................

 

8

Check the connections .................................................................................................

 

9

Plug in the Powered Acoustimass Module .........................................................

 

9

Using Your Acoustimass 15 speakers

 

 

For realistic home theater sound ................................................................................

 

10

LFE level control ................................................................................................

 

10

Bass control ......................................................................................................

 

10

Setting your Dolby Pro-Logicreceiver ..............................................................

 

10

Setting your Dolby Digital receiver ....................................................................

 

10

Be sure to get the Dolby Digital signal ..............................................................

 

11

Maintaining Your Acoustimass 15 speakers

 

 

Troubleshooting ..........................................................................................................

 

12

Customer service ........................................................................................................

 

12

Cleaning the speakers ................................................................................................

 

12

Product Information

 

 

Technical information ..................................................................................................

 

13

Warranty period ..........................................................................................................

 

13

Accessories .................................................................................................................

 

13

Bose® Corporation ....................................................................................

inside back cover

For your records

Serial numbers are located on the connection panel of the Powered Acoustimass module.

Serial number: _________________________________________________________________

Dealer name: __________________________________________________________________

Dealer phone: _______________________ Purchase date: ___________________________

We suggest you keep your sales slip and warranty card together with this owner’s guide.

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Setting Up

Before you begin

Bose® Virtually Invisible® speaker technology allows you to enjoy lifelike home performances from the very latestsurround-soundencoded movies, CDs, and television shows, without a room full of speakers. Each of the five cube speaker arrays, along with the Powered Acoustimass® module, reproduces thefull-spectrumof sound frommulti-channeldigital programming. Integrated Signal Processing assures full bass performance from all channels, at all listening levels, regardless of your receiver settings.

Your stereo VCR, stereo television, or DVD player sends the encoded program material to the surround-soundreceiver, which interprets and distributes the information to the Powered Acoustimass module. The module delivers the bass for all channels and sends appropriate sounds to each cube array. The sound mix varies with different program types: dialogue is usually sent to the center speaker, a visual soundstage is created by the left and right front speakers, and you feel in the center of the action because sounds and special effects are directed to the surround (rear) speakers.At any point in a surround-sound performance, you may hear sound from one, a few, or all of the speakers.

To select surround-encodedprogram material, look for any of the terms Surround, Dolby Surround, thedouble-Dsymbol*, other digital formats, or the word “surround” preceding a TV broadcast. Your system is fully compatible with the latest home theater receivers. You can also enjoy a wide variety of stereo programming that is not sur-round-encodedwith your Acoustimass 15 speakers.

Unpack the carton

Figure 1

What comes in the carton:

Powered Acoustimass module

Five cube speaker arrays

20' (6 m) system input cable

Three 20' (6 m) front speaker output cables

Two 50' (15 m) rear speaker output cables

4 large, 4 small rubber feet

Owner’s Guide

Quick set up guide

Module power cord

Remove any staples from the opened carton flaps.

Remove the brown inner carton containing the five cube speaker arrays.

Gently roll the carton over onto its side and then onto its opening.

Slowly lift the carton from around the Powered Acoustimass module’s packing cushions.

Do not detach the removable cables connected to the Powered Acoustimass module.

If the speakers or the module appear damaged, do not use them. Repack everything in the original carton and contact your authorized Bose dealer immediately.

Note: Now is a good time to record the serial number of these speakers on page 2 of this guide and on your warranty card. Please save all packing materials for possible future use.

WARNING: The Powered Acoustimass module weighs 33 pounds (15 kg). Use good lifting practice to avoid injury.

WARNING: To avoid danger of suffocation, keep the plastic bags that wrap these speakers out of the reach of children.

USA

Europe

UK/Singapore

Australia

* Dolby, Dolby Digital, Dolby Pro-Logic,and thedouble-Dsymbol are trademarks of Dolby Laboratories Licensing Corporation.

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Setting Up

Placing your speakers to achieve realistic home theater sound

A suggested home theater layout that conforms to the guidelines described above is shown in Figure 2. You may want to place the speakers differently, to take advantage of the sound characteristics of different rooms.

Note: The cube arrays are identical and can be used for any channel. All of the cube arrays are magnetically shielded to prevent interference with a television picture. Twist the cube arrays so the speakers createroom-fillingsound patterns.

Note: Bose wall brackets and floor stands can extend your placement options. See “Accessories” on page 13. Please follow wall bracket instructions carefully. Proper mounting will insure optimum performance from your system.

Figure 2

One suggested home theater layout

Center cube speaker

The center speaker localizes action and dialogue on your screen. Sound should seem to come from within the picture.

Place the center cube array above, below, or on top of your television. If below, be sure that it is not supporting the weight of the television in any way.

Keep the cube array as close to the vertical center of the screen as possible, for the most accurate dialogue reproduction.

CAUTION: If you are placing the center cube array on top of the television, use the smaller of the two sets of four rubber feet provided. This will provide extra stability on surfaces such as marble or glass. Additional rubber feet are available, free, by calling the Bose® customer service numbers inside the back cover of this manual. Ask for Part Number178321-04.

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Setting Up

Left and right front cube speakers

The left and right front speakers create a sound image wider than the screen that seems natural to viewers sitting anywhere in the room. You can place them near a TV screen with no picture interference. See figure 2.

Place the front cube arrays on either side of your TV, at least 6 feet (2 m), or as much as 15 feet (5 m) apart.

Surround cube speakers

The surround, or rear, speakers add discrete sounds and special effects that expand the visual image, bringing the viewer into the center of the action. The surround speakers may carry dialog as well. The surround speakers should be positioned to allow the sound to reach the viewer from both sides, rather than from directly behind. See Figure 2.

Place the speakers at ear height or higher, if possible

Adjust the rear surround speakers to direct the sound to the front and back of the listener.

Powered Acoustimass® module

Bose® Acoustimass speaker technology takes advantage of the fact that the source of pure bass sound is difficult to locate, so you can hide the Powered Acoustimass module conveniently out of sight. Place the module at the same end of the room as the television monitor.

You may hide the module behind or under furniture, but do not block the opening. Be sure there is at least 2 inches (5 cm) between the opening and any surface.

If the opening faces the wall it increases the bass; if it faces away it decreases the bass. For the most bass response, place the opening 2 to 3 inches (5 to 8 cm) from a wall or corner.

You may stand the Powered Acoustimass module vertically or horizontally (Figure 3).

After selecting a place for the module, attach the larger set of four rubber feet to the bottom surface for additional stability.

CAUTION: To prevent interference, keep the module at least 2 feet (.6 m) from the television.

Figure 3

Powered Acoustimass module positions

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Setting Up

Connect the speakers

Connect the cube arrays to the Powered Acoustimass® module, and then connect the module to your receiver. The supplied cables make this easy. The cables may be separated or “unzipped” as much as needed to comfortably reach the speakers. See Figure 4.

Figure 4

Separating cables

CAUTION: Before making any connections turn off your receiver and unplug it from the outlet (AC power mains). Not doing so may result in damage to your system.

CAUTION: Never connect the cubes directly to a receiver output. Always connect the cube arrays to the Powered Acoustimass module, then connect the module to the receiver.

CAUTION: Never use broken or frayed wiring, which can result in electrical shock or damage to your system. The supplied cables are not intended forin-wallinstallation. Check local building codes or enlist a qualified installer.

Connect the Powered Acoustimass module to the center and front cube arrays

Three individual 20 (6m) foot wire pairs connect the Powered Acoustimass module to the Center, Right, and Left front cube arrays. Each cable connects to the module with a single plug.

1.Connect the wire pair marked C to the center speaker. Just press the terminal tab on the back of the cube array to insert the marked wire into the red terminal and the plain wire into the black terminal. See Figure 5. Release the tab to secure the wires.

2.Connect the wire pair marked R to the right front speaker (to the right of the TV as you face it).

3.Connect the wire pair marked L to the left front speaker.

Figure 5

Making cube speaker connections

Marked wire

Red terminal

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Setting Up

Connect the Powered Acoustimass® module to the surround cube arrays

The 50 foot (15 m) cable with two pairs of wires connects the Powered Acoustimass module to theRight and Left surround cube arrays. Each has an individual plug on the module end.

1.The wire marked R connects the module to the right surround speaker (on your right as you face the TV). As shown in Figure 5, press the terminal tab on the back of cube array to insert the marked wire into the red terminal and the plain wire into the black terminal.

2.The wire marked L connects the module to the left surround speaker.

3.Insert the connectors firmly into their jacks at the Powered Acoustimass module.

Connect the Powered Acoustimass module to the receiver

The 20 foot (6m) cable with five pairs of wires and a single wire with an RCA plug connects the module to theoutputs on the receiver as shown in the table below.

Note: The RCA plug comes with a cover installed. Remove this cover for connection to the LFE/SUBWOOFER OUT jack. If your receiver has no LFE/SUBWOOFER OUT jack, leave the plug cover in place; in this case this wire will not be used.

Match the polarity on the receiver. Connect the wire pairs in phase (+ to + and – to –).

a.Attach each marked wire (+) to the appropriate + terminal.

b.Attach each plain wire (–)to the appropriate – terminal.

Connect the RCA plug to the receiver’s LFE/SUBWOOFER OUT jack.

At the Powered Acoustimass module, be sure the receiver cable connector is firmly inserted.

 

WIRE

RECEIVER CONNECTION

 

 

 

 

 

 

CENTER

CENTER (MAIN, A)

 

 

RIGHT

RIGHT FRONT (MAIN, A)

 

 

 

 

 

 

LEFT

LEFT FRONT (MAIN, A)

 

 

RIGHT SURROUND

RIGHT SURROUND (REAR)

 

 

LEFT SURROUND

LEFT SURROUND (REAR)

 

 

 

 

 

 

LFE RCA PLUG

LFE SUBWOOFER OUT

 

 

 

 

 

CAUTION: Do not connect the Powered Acoustimass module directly to your television unless the television provides surround decoding circuitry and amplified outputs for all channels.

CAUTION: Do not allow exposed wires to brush against each other; this could damage your receiver.

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