Instructions for:

Powered Subwoofer

& Slave Subwoofer by Henry Kloss

Contents

Safety Precautions ............................................................................ i, ii

Important—Please Read First .............................................................. 1

Unpacking The Subwoofer .................................................................. 2

Audio And AC Power Connections ....................................................... 2

Connecting A Slave Subwoofer ............................................................ 4

Placement ............................................................................................ 5

The Subwoofer Level Control ............................................................... 6

Selecting Low-Pass Frequency ............................................................. 7

Advantages Of The Slave Subwoofer ................................................... 8

The Final Touch ................................................................................... 8

Installing Low Cut Filters .................................................................... 9

Cleaning The Cabinets ......................................................................... 9

Replacing The Fuse ........................................................................... 10

Difficulty? .......................................................................................... 10

Limited Warranty .............................................................................. 11

IMPORTANT

The lightning flash with arrowhead, within an equilateral triangle, is intended to alert the user of the presence of uninsulated

“dangerous voltage” within a product’s enclosure that may be of sufficient magnitude to constitute the risk of electric shock to persons.

WARNING

SHOCK HAZARD

DO NOT OPEN

TO PREVENT THE RISK OF ELECTRIC

SHOCK, DO NOT REMOVE SUBWOOF-

ER’S COVER. NO USER-SERVICEABLE

PARTS INSIDE. REFER SERVICING TO

QUALIFIED SERVICE PERSONNEL.

AVIS

RISQUE DE CHOC ELECTRIQUE

NE PAS OUVRIR

POUR EVITER TOUT RISQUE DE CHOC

ELECTRIQUE, NE PAS DEMONTER LE

COUVERCLE DU HAUT PARLEUR.

AUCUN ENTRETIEN DES PIECES

INTERIEURES N’EST REQUIS.TOUT

SERVICE D’ENTRETIEN NE DOIT ETRE

EFFECTUE QUE PAR DU PERSONNEL

D’ENTRETIEN QUALIFIE.

The exclamation point within an equilateral triangle is intended to alert the user of the presence of important operating and maintenance (servicing) instructions in the literature accompanying this product.

READ AND HEED IMPORTANT SAFETY WARNING

ON BACK OF SUBWOOFER ENCLOSURE

CAUTION:

TO PREVENT ELECTRIC

SHOCK, MATCH WIDE BLADE OF PLUG

TO WIDE SLOT, INSERT FULLY.

ATTENTION:

POUR EVITER LES CHOCS

ELECTRIQUES, INTRODUIRE LA LAME LA PLUS

LARGE DE LA FICHE DANS LA BORNE

CORRESPONDANTE DE LA PRISE ET POUSSER

JUSQU’AU FOND.

WARNING:

TO PREVENT FIRE OR

SHOCK HAZARD, DO NOT

EXPOSE THIS APPLIANCE

TO RAIN OR MOISTURE.

IMPORTANT NOTICE

The serial number for the subwoofer is located on the subwoofer’s control panel. Please write this number down and keep it in a secure area.

This is for your security.

i

IMPORTANT SAFETY INSTRUCTIONS

READ INSTRUCTIONS - All safety and operating instructions should be read before the Powered Subwoofer or Slave

Subwoofer is operated.

RETAIN INSTRUCTIONS - The safety and operating instructions should be retained for future reference.

HEED WARNINGS - All warnings on the subwoofer and in the operating instructions should be adhered to.

FOLLOW INSTRUCTIONS - All operating and use instructions should be followed.

CLEANING - Unplug the subwoofer from the wall outlet or other power source before cleaning. Do not use liquid cleaners or aerosol cleaners. Use a damp cloth for cleaning.

ATTACHMENTS - Do not use attachments not recommended by Cambridge

SoundWorks as they may cause hazards.

WATER AND MOISTURE - Do not use the subwoofer near water—for example, near a bath tub, wash bowl, kitchen sink, or laundry tub; in a wet basement; or near a swimming pool; and the like.

ACCESSORIES - Do not place the Powered

Subwoofer or Slave Subwoofer on an unstable cart, stand, tripod, bracket, or table. The subwoofer may fall, causing serious injury to a child or adult, and serious damage to the product. Use only with a cart, stand, tripod, bracket, or table recommended by Cambridge Sound-

Works, or sold with the product. The subwoofer should follow the manufacturer’s instructions.

VENTILATION - Slots and openings in the cabinet are provided for ventilation and to ensure reliable operation of the subwoofer and to prevent it from overheating, and these openings must not be blocked or covered. The openings should never be blocked by placing the product on a bed, sofa, rug, or other similar surface. The subwoofer should not be placed in a builtin installation such as a bookcase or rack unless proper ventilation is.

HEAT - The subwoofer should be situated away from heat sources such as radiators, heat registers, stoves, and other products (including amplifiers) that produce heat.

POWER SOURCES - The subwoofer should be operated only from the type of power source indicated on the marking label. If you are not sure of the type of power supply to your home, consult your product dealer or local power company.

POLARIZATION - The subwoofer may be equipped with a polarized alternating-current line plug (a plug having one blade wider than the other). This plug will fit into the power outlet only one way. This is a safety feature. If you are unable to insert the plug fully into the outlet, try reversing the plug. If the plug should still fail to fit, contact your electrician to replace your obsolete outlet. Do not defeat the safety purpose of the polarized plug.

POWER-CORD PROTECTION - AC power cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them, paying particular attention to cords at plugs, convenience receptacles, and the point where they exit from the subwoofer.

LIGHTNING - For added protection for the

Powered Subwoofer or the Slave

Subwoofer system during a lightning storm, or when it is left unattended and unused for long periods of time, unplug it from the wall outlet. This will prevent damage to the subwoofer due to lightning and power-line surges.

OVERLOADING - Do not overload wall outlets, extension cords, or integral convenience receptacles as this can result in a risk of fire or electric shock.

OBJECT AND LIQUID ENTRY - Never push objects of any kind into the subwoofer through openings as they may touch dangerous voltage points or short out parts that could result in a fire or electric shock.

Never spill liquid of any kind on the subwoofer.

SERVICING - Do not attempt to service the subwoofer yourself as opening or removing covers may expose you to dangerous voltage or other hazards. Refer all servicing to qualified service personnel.

DAMAGE REQUIRING SERVICE - Unplug the subwoofer from the wall outlet or other power source and refer servicing to qualified service personnel under the following conditions: a) When the power-supply cord or plug is damaged.

b) If liquid has been spilled, or objects have fallen into the subwoofer.

c) If the subwoofer has been exposed to rain or water.

d) If the subwoofer does not operate normally by following the operating instructions; or exhibits a distinct change in performance.

e) If the product has been dropped or damaged in any way.

REPLACEMENT PARTS - When replacement parts are required, be sure the service technician has used replacement parts specified by Cambridge SoundWorks or have the same characteristics as the original part. Unauthorized substitutions may result in fire, electric shock, or other hazards.

SAFETY CHECK - Upon completion of any service or repairs to the Powered

Subwoofer or Slave Subwoofer, ask the service technician to perform safety checks to determine that the Powered Subwoofer or Slave Subwoofer is in proper operating condition.

ii

Important – Please Read First

B ass drums, organs, and electronic synthesizers are among the very few instruments that produce extremely low frequency sounds. As a result, be dealing with a relatively unfamiliar range of sounds. These are sounds more felt than heard, and are encountered more often in the well-equipped movie theater than in the concert hall.

Also keep in mind that a comparatively few home loudspeakers are designed to reproduce bass below about 50 Hz.

Cambridge SoundWorks Audio/

Video Consultant is only a toll-free Today, however, home loudspeakers are called upon to reproduce call away should you need advice or assistance.

more than music: in home theater systems, they are called upon to reproduce movie soundtracks. And modern movie soundtracks contain a lot of energy at very low frequencies—on sound effects. To do full justice to these effects, as well as to the musical low frequencies missed by most speakers, the Cambridge

SoundWorks powered subwoofer systems reproduce, at high power, the lowest bass sounds the human ear can detect.

You should keep in mind when installing your system and investigating its capabilities that you will

Cambridge SoundWorks

1-877-YES-HIFI

(1-877-937-4434)

24 hours a day, every day

In Canada: 1-800-987-9104

Outside US or Canada:

Tel: 617-332-5936

Fax: 617-527-3194 www.cambridgesoundworks.com

E-mail: [email protected]

1

Unpacking

1. Upon unpacking your Powered

Subwoofer (or Slave Subwoofer ), please examine carefully for any signs of shipping damage. If there is any damage, do not install or use the subwoofer .

Consult the store where you purchased the subwoofer for assistance. If purchased through our mail order catalog service, call Cambridge SoundWorks at 1-877-937-4434.

2. If you purchased a Cambridge

SoundWorks Powered

Subwoofer , its accessory pack should contain:

• One spare T3.15A, 250V fuse

• Four square rubber feet

3. If you purchased a Cambridge

SoundWorks Slave Subwoofer , its accessory pack should contain:

• One spare T3.15A, 250V fuse

• 25 feet of 16 gauge speaker wire

• One wire stripper

• Four wire nuts

• Four square rubber feet

4. We suggest that you keep the shipping carton and packing materials in case you later move, or have to ship your subwoofer.

Audio And AC Power Connections

Note: Make all connections with the

Powered Subwoofer switched off.

The Powered Subwoofer can be connected to the main amplifier’s speaker outputs, from stereo preamp outputs or from a mono subwoofer output.

Using the speaker outputs of your main amplifier to drive the

Powered Subwoofer is usually the best way to connect the Powered

Subwoofer , even if you have a separate preamp or subwoofer output (like the subwoofer output on a Dolby Digital ® (AC-3) system).

If you have large Left and Right speakers and a Dolby Digital (AC-3) system, please be sure to read the note at the end of this section.

Connection Method One:

Connect directly to an amplifier or receiver’s speaker output terminals using conventional speaker wire

(Figure 1 on page 3). You can use lightweight speaker wire (20-22 gauge) because this is a high impedance connection. The Powered

Subwoofer uses virtually none of the amplifier or receiver’s output power. Be sure to connect these new speaker wires to the same speaker outputs used by your main speakers. Do not use any additional speaker output terminals your amplifier or receiver may have.

Alternatively, you may connect the speaker wires between the

Powered Subwoofer and the input terminals of your main speakers instead of the amplifier or receiver’s speaker output terminals.

Be sure the speaker wire connects the positive (+) terminals of the subwoofer to the positive (+) terminals of the amplifier or receiver (and similarly connects the negative (–) terminals together). All two-conductor speaker cable is coded along one conductor by lettering, a stripe or a raised bead

-or- the appearance of the two conductors differs, usually one copper and one silver. This allows you to easily connect the proper conductor to each terminal.

Connection Method Two: Connect from a stereo preamp output to the

Powered Subwoofer’s Line Level inputs. A suitable length of conventional stereo phono cable with RCA plugs at each end is all you need if your preamp has an unused stereo preamp output.

2

To connect between a stereo preamp and a stereo power amp, combine a suitable length stereo phono cable with two “Y” adapters. Each adapter is one

RCA male plug to two RCA female jacks

INTEGRATED AMP OR RECEIVER

(FRONT)

SPEAKER OUTPUTS

LEFT

RIGHT

To left (front) speaker To right (front) speaker

(Figure 2). Some receivers and integrated amplifiers have preamp outputs and power amp inputs that are accessible by removing jumpers from the back panel.

PREAMP

OUTPUTS

TO POWER AMP

L R

Y-adapters

To power amp

(Front amp in surround system)

Connection Method Three:

Connect from a subwoofer output using a suitable length mono phono cable with an RCA phono plug at each end (Figure 3). Con-

SURROUND DECODER OR RECEIVER

FRONT

SURROUND

L

OUTPUTS

R

CENTER

SUBWOOFER

*

* Labelled “Mono” on some units.

Be sure the output signal is full-range.

L

R

L R

MONO

LINE

LEVEL

INPUTS

+ SPEAKER

LEVEL INPUTS

POWERED SUBWOOFER

Figure 1.

Using speaker wire

L R

MONO

LINE

LEVEL

INPUTS

L

+ SPEAKER

LEVEL INPUTS

R

POWERED SUBWOOFER

Figure 2.

Using “Y” adapters and phono cable

L R

MONO

LINE

LEVEL

INPUTS

L

+ SPEAKER

LEVEL INPUTS

R

POWERED SUBWOOFER

Figure 3.

Surround decoder or receiver with subwoofer (mono) output nect the phono cable to the Right channel line level input on the

Powered Subwoofer .

Note: You should connect the

Powered Subwoofer to your system using either the line level inputs or the speaker level inputs–but not both sets of inputs.

A Note About Dolby Digital

(AC-3), Large Front Speakers

And Powered Subwoofers

While it is logical to connect the

Powered Subwoofer to the

“Subwoofer Output” or LFE (Low

Frequency Effects) output of a

Dolby Digital (AC-3) equipped system, there are some instances when bypassing this output can result in better sound.

Most Dolby Digital (AC-3) decoders automatically remove the low bass content from all the Main speakers if the “Subwoofer Output” switch is set to “On”. The Main speaker “Large/Small” switches still appear to function, but they are actually locked in the “Small” mode.

This automatic bass limiting is unnecessary with large Main speakers. You can effectively send all low-bass and Low Frequency

Effects signals to both your Main

3

Left and Right speakers and to your subwoofer by turning the subwoofer output “Off” and setting the Main

Left and Right speakers to “Large”.

This blends all the output of the

Low Frequency Effects channel with the Main Left and Right speakers.

The Powered Subwoofer needs to be connected with speaker wire to the

Main Left and Right speaker outputs in this case.

AC Power, Etc.

After making the audio connections, plug the power cord into any convenient 120-Volt AC, 60 Hz outlet and switch the subwoofer

“On”. Do not plug it into a switched outlet on your amplifier or receiver, as the Powered Subwoofer draws sufficient current at high volume levels to possibly damage the switched outlet’s relay mechanism.

NOTE: If you connect the Powered

Subwoofer to your system using speaker wires and hear a low-level hum, turn off both the system and the subwoofer and reverse the latter’s AC plug in the outlet.

When you turn the system back on, the hum should be gone.

The Powered Subwoofer has an automatic “Power Off” circuit that turns off power to the amplifier circuit after it has been silent for over

20 minutes. The Powered Subwoofer rapidly activates as soon as a new signal is present. This feature operates when the switch labeled “Autooff Setting” is in the “Auto” position.

Most home users will find this setting to be appropriate.

The “manual “ position of the

“Auto-off Setting” switch keeps the amplifier operating and drawing a small current so long as the Power switch is in the “On” position. This setting is appropriate when the

Powered Subwoofer is used in professional sound studios.

AC Power Light

The light next to the Power

Switch glows in different colors to reflect the operating status of the amplifier. Green indicates the

Powered Subwoofer amplifier is

“On” and operating. Amber means the Powered Subwoofer amplifier is in “Standby” mode and will power-up and operate as soon as a signal is fed to it. Red indicates an amplifier-fault condition. See page

10 if this occurs. The light goes dark when the Power switch is in the “Off” position. The Powered

Subwoofer amplifier is disconnected from the AC line in this condition.

Connecting A Slave Subwoofer

The Slave Subwoofer connects to the

Powered Subwoofer with the supplied 25 foot 16-gauge speaker cable (or any other high quality heavyweight speaker cable).

• Using the supplied wire strippers, remove 1 /

2

inch of insulation from the copper and silver colored wires at each end of the speaker wire. Twist each exposed lead’s fine wire strands tightly together.

• Remove the cover from the

“SLAVE SUBWOOFER OUTPUT” on the back of the Powered

Subwoofer . Connect the coppercolored wire at one end of the speaker cable to the red (positive) connector on the Slave Subwoofer speaker output. Connect the silver colored wire to the black

(negative) connector.

• Connect the opposite end of the speaker wire to the Slave

Subwoofer input connector in a similar fashion.

• The information about placement on pages 5 and 6 also applies to the combination of a

Slave Subwoofer and Powered

Subwoofer . While it is often convenient to place the two units right next to each other and treat them as one, they will couple acoustically even when they are placed several feet apart.

Slave Subwoofer

Powered Subwoofer

SLAVE SUBWOOFER

OUTPUT

4

Placement

Before connecting your Powered

Subwoofer , place it in your listening room using the guidelines that follow. Then make the connections.

Once your sound system is operating with the Powered

Subwoofer , listen and experiment further with placement before making the installation permanent.

1. The ear cannot localize the very low bass sounds reproduced by the Powered Subwoofer . This is why it is possible to use a single powered subwoofer to reproduce all the 25 to 40 Hz bass a sound

Left Satellite

Surround

Powered Subwoofer

Right Satellite

A. LEAST BASS

system requires. It is also the reason why the subwoofer need not be located particularly close to other speakers or aimed directly at the listeners. The Powered Subwoofer should be positioned vertically

(stick-on feet are provided for attachment once you have decided on its final orientation). It can sit in a variety of positions within the listening room, although we don’t recommend placing it behind listeners. Also, do not place the Powered

Subwoofer underneath furniture.

Make sure there is a clear air space of at least 18 inches surrounding the Powered Subwoofer . Don’t place objects on the Powered

Subwoofer (such as clothing) that could inadvertently drape down the front or back of the unit, restricting air flow or speaker output. Similarly, do not conceal the Powered Subwoofer behind draperies or other similar material.

2. The maximum low-bass output of the Powered Subwoofer is markedly affected by its placement with respect to adjacent room surfaces.

Start by placing the subwoofer on

Left Satellite

Powered Subwoofer

Surround Surround

Right Satellite

B. MORE BASS

Left Satellite

Powered Subwoofer

Surround Surround

Right Satellite

C. MOST BASS

Surround

FIGURE 4: HOW ROOM PLACEMENT AFFECTS BASS RESPONSE

the floor against the same wall as your front speakers, preferably close to a corner (Figure 4, B or C). The strongest output will be produced with the speaker on the floor directly in the corner.

The least bass output will result if the speaker is placed out in the room, away from the walls (see

Figure 4, A).

3. Corner placement “confines” the bass output to the listening room, minimizing bass transfer to other rooms.

4. The listening room’s construction can have a marked effect upon the very low frequencies reproduced by the Powered

Subwoofer . Thin, relatively flexible walls allow these frequencies to dissipate readily, as do open doors, archways opening into other rooms, and even open windows. In addition, the larger the room, the greater the demand for low-frequency acoustic energy. Therefore, the best type of room for bass reproduction in a home theater would be one moderate in size, solidly constructed, with no openings to other rooms.

5

Obviously, not all rooms in a normal home meet all these criteria. If you have the option, set up your home theater in the room that comes closest. While listening, shut the room’s doors and windows (if practical). It can make a surprising difference.

And if your listening room is very large and/or opens out into another room, it may be desirable to add our optional, passive Slave Subwoofer for satisfactory high-level performance (see pages 3 and 5).

Note: Do not place the subwoofer in shelving that houses a phono turntable. Strong bass from the speaker, including the turntable’s own rumble, could be picked up by the turntable, fed back out the speaker again, picked up by the turntable yet again, and so on. This condition, known as acoustic feedback, will muddy the sound or set up a loud, low-frequency rumbling.

The Subwoofer Level Control

The Subwoofer Level Control adjusts how loudly the Powered Subwoofer plays. Start with it set midway (5), then adjust upward or downward depending on what you discover during your listening tests.

Remember the Powered Subwoofer reproduces bass that is below most frequencies of musical interest, so it is important to adjust its output level with material that contains strong, deep bass signals. It’s easiest to adjust the Subwoofer Level Control when listening to the right film soundtracks (HiFi video cassette,

Laser Disc, or Digital Video Discs).

Action or adventure film soundtracks generally have the deepest bass signals. Try effects such as the Empire State Building exploding in Independence Day or other more recent films with explosions or similar sound effects.

With the Powered Subwoofer properly adjusted, these film and video sound effects should literally be room-shaking at high playback levels. In contrast, much of the music on audio CDs should not sound any different with the Powered Subwoofer properly adjusted.

Indeed, if the subwoofer does add

“boomy” or “thumpy” quality to your music, you may have the subwoofer level control set too high.

Note: Always adjust the level control first. Fine-tune the low-pass filter setting once you have arrived at a satisfying overall Level Control setting.

It may take several listening sessions using different films and musical sources to arrive at the single best setting for the Level

Control. The Subwoofer Level Control is intended to be set once and then left alone. Once you have decided on a setting, use the Bass tone control on your main electronics to compensate for the inevitable small differences in bass output between different recordings. If you experience any difficulty, don’t hesitate to consult your store or call a Cambridge SoundWorks Audio/

Video Consultant at 1-877-YES-HIFI.

6

Selecting Low-Pass Frequency

You can fine-tune the blend between your main speaker system and the Powered Subwoofer by adjusting the four-position switch labeled “Low-Pass Frequency.” The optimum filter setting enables the subwoofer to “take over” the task of reproducing very low bass seamlessly from your main speakers.

The Low-Pass Frequency selector behaves the same whether you are using the Speaker Level or Line

Level signal inputs of the Powered

Subwoofer . The following guidelines will help you choose the best setting. The differences between each setting can be subtle, so don’t be surprised if you can’t hear the difference. You have found a good setting if this is the case.

55

80 100

140 (FROM LFE

OUTPUT)

LOW PASS

FREQUENCY (Hz)

• 55 Hz or 80 Hz: For use with any of the following Cambridge

SoundWorks speakers–

New Ensemble ® , New Ensemble II,

, Tower

II, Tower III, Model Six™ . Also, any other truly wide-range speaker system. Which position to choose

(55 Hz or 80 Hz) is best decided by listening.

Note for Ensemble owners: The

Powered Subwoofer is intended to supplement, not replace the separate subwoofers supplied with these systems. Do not disconnect your Ensemble woofers when using the Powered Subwoofer .

• 100 Hz: For use with smaller bookshelf sized speaker systems with less low-bass reach. Use this setting with the Cambridge

SoundWorks Model Seventeen ™ and Ensemble IV .

• 140 Hz: Use this setting with small main speakers.

Special note about line-level subwoofer outputs

Many receivers and all Dolby

Digital (AC-3) processors feature dedicated subwoofer outputs. Some of these outputs are full-frequency bandwidth. Others deliver a signal which is “Bass Only”. These two types of subwoofer outputs should be treated differently. Check your amplifier’s specification list to determine which type you have.

Most of the subwoofer outputs on receivers (stereo or Dolby Surround ® with Pro Logic) deliver a full frequency range signal, the same signal that is fed to the main speakers. Customers using this type of subwoofer output should set the

Low-Pass frequency as described in the procedure above.

The second type of subwoofer output sends a “Bass Only” signal to the Powered Subwoofer . The most common example is the Low Frequency Effects (LFE) channel of a

Dolby Digital (AC-3) equipped system. Set the Low-Pass frequency to 140 (from LFE output) with this type of subwoofer output. Try a lower frequency setting only if there is too much bass output on non-

Dolby Digital (AC-3) program material.

It is possible to improve the performance of your main speakers by the use of optional Low-Cut

Filters (see page 9).

7

Advantages Of The Slave Subwoofer

If your listening space is very large or if you wish the strongest lowbass output possible, it may be necessary to add our optional, passive Slave Subwoofer . The Slave

Subwoofer consists of an acoustic suspension bass driver like that of the Powered Subwoofer , housed in an identical cabinet and powered by the amplifier within the

Powered Subwoofer . Because of the acoustic coupling between the two bass drivers, and because together they present a load enabling the amplifier to deliver higher power, the combination system has approximately three times the total acoustic output of a Powered

Subwoofer alone. If you think you may need the Slave Subwoofer , consult your store or an Audio/

Video Consultant at any Cambridge

SoundWorks store or call

1-877-YES-HIFI.

Note: The Powered Subwoofer and

Slave Subwoofer are a matched system. Under no circumstances should any speaker other than a

Slave Subwoofer be connected to the “Slave Subwoofer Output” on the Powered Subwoofer . Using the

Slave Subwoofer Output to drive any other speaker can result in damage to the Powered Subwoofer and the resultant damage is not covered under the terms of the

Powered Subwoofer warranty.

The Final Touch

Our “in the speaker line” Low-

Cut Filters optimize the performance your system at higher output levels by keeping the low frequencies best left to the subwoofer out of the main front speakers. This eases the burden on the front speakers and amplifier, letting them play more cleanly at higher levels, a major potential benefit of having a subwoofer in the first place.

• Our inexpensive Low-Cut Filters are ideal for use with Cambridge

SoundWorks’ Model Seventeen ,

Model Six and Ambiance ® speakers, and other conventional systems of reasonably wide range. Connect these filters between your main speakers and your amplifier. The filters begin to block bass signals to your main speakers below about 140 Hz, so that below

100 Hz, almost no bass signals reach your main speakers.

8

Installing Low-Cut Filters

• The filters can go at either end of the speaker wires of the Left and Right Main speakers. You can, for example, connect one filter’s INPUT FROM AMP leads to speaker outputs on your receiver or amplifier, then connect the speaker wire to the filter’s OUTPUT TO SPEAKER leads with the wire nuts supplied. Or, you can attach a filter right to the back of a speaker. Connect the filter’s

OUTPUT TO SPEAKER leads to your speaker’s input terminals.

• As with all speaker connections, be sure to maintain consistency with respect to the + and — terminals on the receiver and those on the speakers, including the Powered Subwoofer . The connecting wires on the filters are coded by the use of one copper-colored conductor and one silver.

Cleaning The Cabinets

If more than dusting is needed, the finish on either subwoofer can be cleaned with a window or vinyl cleaning product. Avoid spraying the cleaner directly on the speaker grille to prevent damage to the grille or the speaker.

9

Replacing The Fuse

A fuse protects the amplifier inside the Powered Subwoofer . If the fuse blows, it is safe to substitute the spare T3.15A, 250V fuse supplied with the speaker. If the second fuse blows, or the Power light glows red, do not attempt to replace the fuse another time. Return the subwoofer to your store’s

Authorized Repair Center. If you purchased the speaker directly from Cambridge SoundWorks, call

1-877-YES-HIFI for advice.

There are no other fuses or userreplaceable parts within the

Powered Subwoofer .

Do Not substitute a fuse of a different rating.

IMPORTANT: Turn off and unplug the subwoofer before changing the fuse.

60 Hz

120V

330W

FUSE:

T3.15A

250V

1.) Use a small flat screwdriver as a lever to remove the fuse holder in the AC cord receptacle

2.) Invert the fuse holder and remove the blown fuse.

60 Hz

120V

330W

FUSE:

T3.15A

250V

3.) Replace with T3.15A, 250v fuse. 4.) Invert the fuse holder and insert it into its receptacle.

10

Difficulty?

If you suspect a problem with your subwoofer, contact the store where it was purchased. If a problem is confirmed, you will need to return the speaker to that store or its

Authorized Service Center.

If you purchased the speakers through our mail order catalog, by phone or via our website, call

1-877-YES-HIFI. An Audio/Video

Consultant will help you track down the problem, which could be in some other component in your system. If together you agree that there is something wrong with the subwoofer, you will be supplied with a Return Authorization

Number. Please do not return the subwoofer to the factory without prior authorization.

Limited Warranty

Powered Subwoofer

To the original purchaser,

Cambridge SoundWorks, Inc. will warrant the Powered Subwoofer to be free of defects in material and workmanship for a period of two

(2) years from date of purchase.

With respect to defects, Cambridge

SoundWorks will, at its option, replace the product or repair the defect in the product with no charge to the original purchaser for parts or labor. During the period from three (3) years through ten (10) years, Cambridge

SoundWorks will, at its option, repair or replace the defective product for a cost to the original purchaser of no more than $50.00

for parts and labor.

Slave Subwoofer

To the original purchaser, Cambridge SoundWorks, Inc. will warrant the Slave Subwoofer to be free of defects in material and workmanship for a period of ten

(10) years from date of purchase.

With respect to defects, Cambridge

SoundWorks will, at its option, replace the product or repair the defect in the product with no charge to the original purchaser for parts or labor.

These warranties do not extend to any defect, malfunction or failure caused by misuse, abuse, accident, faulty hook-up, defective associated equipment or use of the speaker with equipment for which it is not intended, such as connecting any speaker other than a

Slave Subwoofer to the Powered

Subwoofer’s “Slave Subwoofer

Output.”

Each of these two warranties is the sole and express warranty of the product named in its title, and is in lieu of all other warranties, expressed or implied, of merchantability, fitness for purpose or otherwise. In no event shall Cambridge SoundWorks be liable for incidental or consequential damages or have any liability with respect to defects other than the obligations set forth herein.

To ensure warranty coverage it is incumbent upon the original purchaser to inform Cambridge

SoundWorks or any of its Authorized Service Agencies of the defect within the warranty period.

The only acceptable method of establishing warranty status is a

® Dolby, Pro Logic and Dolby Digital (AC-3) are registered trademarks of Dolby Laboratories Licensing Corporation

™ Tower, Model Six and Model Seventeen are trademarks of Cambridge SoundWorks, Incorporated

® Ensemble, Ambiance and Cambridge SoundWorks are registered trademarks of Cambridge SoundWorks, Incorporated

11 copy of the original proof of purchase indicating customers name and date of purchase.

Upon notification by the purchaser and reaching agreement with the purchaser that there is a defect, Cambridge SoundWorks will issue a Return Authorization

Number for the product. The purchaser will return the product to the address below, freight prepaid by the purchaser. The product shall have the Return

Authorization Number clearly marked on the outside of the package. The package must include a copy of the original proof of purchase. Please do not return either the Powered

Subwoofer or the Slave Subwoofer to Cambridge SoundWorks without prior authorization from

Cambridge SoundWorks.

For warranty information contact:

Cambridge SoundWorks, Inc.

311 Needham St.

Newton, MA 02464

1-877-YES-HIFI

(1-877-937-4434) www.cambridgesoundworks.com

email: [email protected]

311 Needham Street, Newton MA 02464

1-877-937-4434 Fax: 617-527-3194 www.cambridgesoundworks.com

Email: [email protected]

P81-1010 0400

A Company