JBL SCS178 User Manual

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O W N E R ’ S G U I D E

 

PRODUCT LINE:

 

 

®

 

MODEL

SCS178 (230V)

 

NUMBER:

 

 

 

DESIGN GOAL: Bring the thrill of live performance and movie sound to the home environment by calling on JBL’s professional engineering leadership.

SATELLITE TYPE:Titanium-laminate-dome tweeter, reflex-loaded enclosure

SUBWOOFER TYPE: Bass-reflex enclosure

PORT DESIGN: FreeFlow™ flared

PROFESSIONAL REFERENCE: Cinema Loudspeaker Series

 

 

R

E A D

T H I S !

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Important Safety Precautions!

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Active (Powered) Products:

 

 

 

 

 

 

 

 

 

 

9. Wall or Ceiling Mounting. The product

 

 

 

 

CAUTION

 

 

 

 

 

 

 

 

should be mounted on a wall or ceiling only

19. Ventilation. Slots and openings in the

 

 

 

 

 

 

 

 

 

 

when and as recommended by the manu-

cabinet are provided for ventilation and to

 

 

 

 

RISK OF ELECTRIC SHOCK

 

 

 

 

 

 

 

 

 

 

facturer.

ensure reliable operation of the product and

 

 

 

 

DO NOT OPEN

 

 

 

10. Cleaning. Unplug this product from the

to protect it from overheating, and these

 

 

 

 

 

 

 

 

 

 

wall outlet before cleaning. Do not use liquid

openings must not be blocked or covered.

 

 

CAUTION: To prevent electric shock,

 

 

 

 

 

 

cleaners or aerosol cleaners. Use a damp

The openings should never be blocked by

 

 

 

do not remove the grounding plug

 

 

cloth for cleaning.

placing the product on a bed, sofa, rug, or

 

 

 

on the power cord, or use any plug

 

 

11. Attachments. Do not use attachments not

other similar surface. This product should not

 

 

 

or extension cord that does not have

 

 

 

 

 

 

 

recommended by the product manufacturer,

be placed in a built-in installation such

as a

 

 

 

 

 

 

 

 

 

 

 

 

a grounding plug provided.

 

 

 

 

 

 

 

 

 

Make certain that the

 

 

as they may cause hazards.

bookcase or rack unless proper ventilation is

 

 

 

 

 

 

 

AC outlet is properly grounded.

 

 

12. Replacement Parts. When replacement

provided or the manufacturer’s instructions

 

 

 

 

 

 

 

 

 

have been adhered to.

 

 

 

 

 

 

 

Do not use an adapter plug

 

 

parts are required, be sure the service tech-

 

 

 

 

 

 

 

 

 

Make certain that the proper space (more

 

 

 

 

 

 

 

with this product.

 

 

nician has used replacement parts specified

 

 

 

 

 

 

 

The lightning flash with arrowhead

 

 

by the manufacturer or that have the same

than 10cm) is provided both above and below

 

 

 

 

symbol, within an equilateral triangle, is

 

 

characteristics as the original part.

the unit for ventilation. If the amplifier will be

 

 

 

 

intended to alert the user to the

 

 

 

 

 

 

presence of uninsulated “dangerous

 

 

Unauthorized substitutions may result in fire,

installed in a cabinet or other enclosed area,

 

 

 

 

 

 

 

 

 

voltage” within the product’s enclosure

 

 

electric shock or other hazards.

make certain that there is sufficient air

 

 

 

 

that may be of sufficient magnitude to

 

 

 

 

 

 

constitute a risk of electric shock to

 

 

13. Safety Check. Upon completion of any

movement within the cabinet, with means

 

 

 

 

persons.

 

 

 

 

provided for hot air to exit and for cool air to

 

 

 

 

 

 

 

 

 

 

service or repairs to this product, ask the

 

 

 

 

The exclamation point within an

 

 

be brought in.

 

 

 

 

equilateral triangle is intended to alert

 

 

service technician to perform safety checks

 

 

 

 

 

 

Do not obstruct the ventilation slots on the

 

 

 

 

the user to the presence of important

 

 

to determine that the product is in proper

 

 

 

 

operating and maintenance (servicing)

 

 

operating condition.

top of the unit or place objects directly over

 

 

 

 

instructions in the literature

 

 

 

 

 

 

accompanying the appliance.

 

 

14. Feet/Spikes. When positioning, or moving

them. Remember, power amplifiers generate

 

 

 

 

 

 

 

 

 

 

heat, and the heatsink fins and ventilation

 

 

 

 

 

 

 

 

 

 

this product ensure that is lifted rather than

 

 

 

 

 

 

 

 

 

 

slots that form part of the cabinet are spe-

 

General:

 

 

 

 

dragged across any floor/mounting surface.

 

 

 

 

 

cially designed to remove this heat. Placing

 

1. Unpacking: Check the product carefully. If

This will avoid any damage to the floor/-

 

other electronic equipment near these heat-

 

mounting surface. Attention! Products and/or

 

it has been damaged in transit, report the da-

dissipation systems may possibly affect the

 

product feet constructed of rubber or plastics

 

mage immediately by calling your dealer

long term reliability of both your amplifier and

 

may, in seldom cases, react chemically and

 

and/or the shipping company that delivered

the objects placed above it.

 

discolor treated or non-treated wooden sur-

 

it.

 

 

 

 

Do not place CDs, record jackets, owner’s

 

 

 

 

 

faces if positioned without protection.

 

2. Connections: Whenever changing, con-

 

15. Warranty: The following conditions may

manuals or other paper on top of or beneath

 

necting or disconnecting signal or power

the unit or in between products containing

 

result in a void product warranty:

 

cables etc., always turn off all equipment.

amplifiers in a stack. This will block the air

 

a. the manufacturers serial number is remo-

 

This prevents transients from entering the

flow, causing degraded performance and a

 

equipment and prevents electrical energy

ved or forged.

possible fire hazard.

 

from reaching you. Keep all connections out

b. if repairs and/or modifications and/or other

20. Power Sources. This product should be

 

of the reach of children. Before moving the

treatments/tunings have been carried out

 

operated only from the type of power source

 

unit, be certain to disconnect any intercon-

by non-authorized personnel or

 

indicated on the marking label. If you are not

 

nection cords with

other components, and

accessories/supplements are attached,

 

sure of the type of power supply to your

 

make certain that

you disconnect any powe-

which are not approved by

 

home, consult your product dealer or local

 

red units from the

AC outlet.

manufacturer/importer.

 

power company. For products intended to

 

3. Read Instructions.

All the safety and

16. Warranty: The following items are not

 

operate from battery power, or other sources,

 

operating instructions should be read before

covered by the product warranty:

refer to the operating instructions.

 

the product is operated.

 

 

 

 

a. Damage caused by inappropriate handling

21. Grounding or Polarization. This product

 

4. Retain Instructions. The safety and ope-

 

despite clear instructions provided in the

may be equipped with a polarized alternating-

 

rating instructions should be retained for

owners manual.

current line plug (a plug having one blade

 

future reference.

 

 

 

 

b. Damage to mechanical parts (such as

wider than the other). This plug will fit into the

 

5. Heed Warnings. All warnings on the pro-

record-/playback heads, moving rubber

power outlet only one way. This is a safety

 

duct and in the operating instructions should

and plastic parts and fuses) as well as

feature. If you are unable to insert the plug

 

be adhered to.

 

 

 

 

results of normal wear and tear.

fully into the outlet, try reversing the plug. If

 

6. Follow Instructions. All operating and use

c. Damage caused by external action or

the plug should still fail to fit, contact your

 

instructions should be followed.

influence.

electrician to replace your obsolete outlet.

 

7. Water and Moisture. The product should

d. Damage caused by miss-use by user.

Do not defeat the safety purpose of the

 

polarized plug.

 

not be used near water – for example, near a

e.

Damage

caused by excessive electrical

 

22. Power-Cord Protection. Power-supply

 

bathtub, washbowl, kitchen sink, laundry tub,

mains supply voltage or lightning strike.

 

in a wet basement, or near a swimming pool,

cords should be routed so that they are not

 

f. Damage caused by fire, water or smoke.

 

and the like.

 

 

 

 

likely to be walked on or pinched by items

 

8. Accessories. To ensure proper operation

g. Damage known to buyer prior to purchase.

placed upon or against them, paying parti-

 

h. Damage caused by professional employ-

cular attention to cords at plugs, con-

 

and to avoid the potential for safety hazards,

 

place the unit on a firm and level surface.

ment of home entertainment products (e.g.

venience receptacles, and the point where

 

When placing the unit on a shelf, be certain

for catering trade, restaurants, public ad-

they exit from the product. To avoid safety

 

that the shelf and any mounting hardware

dress or infinite loop announcement use

hazards, use only the power cord supplied

 

can support the product’s weight. Do not

etc.)

with your unit. If a replacement cord is used,

 

place this product on an unstable cart, stand,

17. Specifications: All product specifica-

make certain that it is of a similar gauge. We

 

tripod, bracket, or table. The product may fall,

tions/features are subject to change without

do not recommend using extension cords

 

with this product. As with all electrical

 

causing serious injury to a child or adult, and

notification.

 

devices, do not run power cords under rugs

 

serious damage to the product. Use only with

Passive Products:

 

or carpets or place heavy objects on power

 

a cart, stand, tripod, bracket, or table recom-

18. Amplifiers: Amplifiers used to drive these

 

cords. Damaged power cords should be

 

mended by the manufacturer, or sold with the

 

units must deliver a sufficient output power. A

replaced immediately, by a qualified service

 

product. Any mounting of the product should

 

lack of output power may lead to amplifier-

technician, with cords meeting factory

 

follow the manufacturer’s instructions, and

 

clipping, which causes damage not covered

specifications. When disconnecting the

 

should use a mounting accessory recom-

by guarantee.

 

power cord from an AC outlet, always pull the

 

mended by the manufacturer.

 

 

 

 

plug; never pull the cord.

 

 

 

 

 

 

 

 

 

 

 

 

 

2

23. Non-use Periods. The power cord of

26. Damage Requiring Service. Unplug this

27. Servicing. Do not attempt to service

the product should be unplugged from the

product from the wall outlet and refer

this product yourself, as opening or

outlet when left unused for long periods of

servicing to qualified service personnel

removing covers may expose you to

time.

under the following conditions:

dangerous voltage or other hazards. Refer

24. Lightning. For added protection for this

a. The power-supply cord or the plug has

all servicing to qualified service personnel.

product during a lightning storm, or when it

been damaged; or

28. Object and Liquid Entry. Never push

is left unattended and unused for long

b. Objects have fallen, or liquid has been

objects of any kind into this product

periods of time, unplug it from the wall

spilled into, the product; or

through openings, as they may touch

outlet and disconnect the antenna or cable

c. The product has been exposed to rain or

dangerous voltage points or short-out

system. This will prevent damage to the

parts that could result in a fire or

electric

water; or

product due to lightning and power-line

shock. Never spill liquid of any kind on the

d. The product does not operate normally

surges.

product. The apparatus shall not be

when following the operating

25. Overloading. Do not overload wall out-

exposed to dripping or splashing and no

instructions. Adjust only those controls

lets, extension cords, or integral conven-

objects filled with liquids, such as vases,

that are covered by the operating

ience receptacles, as this can result in a

shall be placed on the apparatus.

instructions, as an improper adjustment

risk of fire or electric shock.

29. Heat. The product should be situated

of other controls may result in damage

 

 

away from heat sources such as radiators,

 

 

and will often require extensive work by

 

 

heat registers, stoves or other products

 

 

a qualified technician to restore the

 

 

(including amplifiers) that produce heat.

 

 

product to its normal operation; or

 

 

Avoid installation in extremely hot or cold

 

 

e. The product has been dropped, or the

 

 

locations, in an area that is exposed

to

 

 

enclosure damaged; or

 

 

direct sunlight or near heating equipment.

 

 

f. The product does not appear to operate

 

 

When positioning the product in its final

 

 

normally or exhibits a marked change in

location, make certain that it has adequate

 

 

performance.

ventilation on all sides, as well as on the

 

 

 

top and bottom.

T H A N K Y O U F O R C H O O S I N G J B L

 

For more than 50 years, JBL

We’re confident that the JBL

or office, you will once again

 

has been involved in every

system you have chosen will

choose JBL.

 

 

 

 

aspect of music and film

provide every note of enjoment

 

 

 

recording and reproduction,

that you expected – and that

JBL Consumer Products

 

from live performances to the

when you think about

 

 

 

recordings you play in your

purchasing additional audio

 

 

 

home, car or office.

equipment for your home, car

 

 

I N C L U D E D

Four satellites for left/right

One center channel speaker.

Powered subwoofer.

front and surrounds.

 

 

 

Two 6.1-meter (20-foot) speaker

Three 12.2-meter (40-foot)

 

cables for connection from

speaker cables for connection

 

receiver to subwoofer.

from receiver to left and right

 

 

rear satellites and center

 

Two 4.6-meter (15-foot) speaker

speaker.

 

cables for connection from

 

 

subwoofer to front speakers.

3

 

 

S P E A K E R P L A C E M E N T

 

Front Speakers

Center Channel Speaker

Subwoofer

 

0 – 0.6m (0 – 2 ft.)

 

Surround Speakers

 

 

 

150-180 cm

 

The front speakers should be

The two surround speakers

room. However, the best

 

placed the same distance from

should be placed slightly

reproduction of bass will be

each other as they are from the

behind the listening position

heard when the subwoofer is

listening position. They should

and, ideally, should face each

placed in a corner along the

be placed at about the same

other and be at a level higher

same wall as the front

height from the floor as the

than the listeners’ ears. If that

speakers. Experiment with

listeners’ ears will be, or they

is not possible, they may be

subwoofer placement by

may be angled toward the

placed on a wall behind the

temporarily placing the

listeners.

listening position, facing for-

subwoofer in the listening

 

ward. The surround speakers

position and moving around the

The center channel speaker

should not call attention to

room until the bass

should be placed slightly

themselves. Experiment with

reproduction is best. Place the

behind the front left and right

their placement until you hear a

subwoofer in that location.

speakers, and no more than

diffuse,

ambient sound

 

 

two feet above or below the

accompanying the main

 

 

tweeters of the left and right

program material heard in the

 

 

speakers. It is often convenient

front speakers.

 

 

to set the center speaker on top

The low-frequency material

 

 

of the television set, as shown

reproduced by the subwoofer is

 

 

in the drawing.

mostly omnidirectional, and this

 

 

 

speaker may be placed in a

 

 

 

convenient location in the

 

 

4

M O U N T I N G O P T I O N S

Satellites and Surrounds

On shelves.

On the wall. Wall brackets

On optional stands.

 

are included.

 

Wall-Mounting

The customer is responsible for proper selection and use of mounting hardware, available through hardware stores, to properly and safely wall-mount the speakers.

5

 

 

S

P E A K E R C O N N E C T I O N S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Connection Tips

Separate and strip the ends of

the amplifier. Wiring “out of

 

 

 

 

 

 

 

 

 

the speaker wire as shown.

phase” results in thin sound,

 

 

 

 

 

Speakers and electronics

weak bass and a poor stereo

 

 

 

 

 

terminals have corresponding

image.

 

 

 

 

 

(+) and (–) terminals. Most

With the advent of multichannel

 

 

 

 

 

manu-facturers of speakers

surround-sound systems,

 

 

 

 

 

and electronics, including JBL,

connecting all of the speakers

 

 

 

 

 

use red to denote the (+)

in your system with the correct

 

 

 

 

 

terminal and black for the (–)

polarity remains equally

 

 

 

 

 

terminal.

important in order to preserve

 

 

 

 

 

The (+) lead of the speaker wire

the proper ambience and

 

 

 

 

 

is noted with a stripe. It is

directionality of the program

 

 

 

 

 

important to connect all

material.

 

 

 

 

 

speakers identically: (+) on the

 

 

 

 

 

 

 

 

 

 

 

speaker to (+) on the amplifier

 

 

 

 

 

 

 

 

 

 

 

and (–) on the speaker to (–) on

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

Dolby* Pro Logic* (Non-Digital) – Speaker Level

 

 

 

 

 

Use this installation method for

 

 

 

 

 

 

 

Right Front

Dolby Pro Logic applications

Left Front

 

 

Center

 

 

(not Dolby Digital, DTS® or

+

 

 

 

 

+

 

 

+

 

other digital processing),

 

 

 

 

 

 

 

 

 

where the receiver/processor

 

 

 

 

 

 

 

 

 

does not have a subwoofer

 

 

 

 

 

 

 

 

 

output, or a volume-controlled

 

 

 

 

 

 

 

 

 

preamp (line-) level output:

 

 

 

 

Subwoofer

 

 

 

Connect your receiver or

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

amplifier’s front left and right

 

 

 

 

HIGH LEVEL

 

 

 

speaker terminals to the left

 

 

 

L

R

 

 

 

 

+

+

 

and right terminals on the

 

 

 

 

OUT

 

 

 

 

 

 

 

subwoofer that are marked

 

 

 

 

 

 

 

 

“High Level In.” Connect the

 

 

 

 

 

 

 

 

 

left and right terminals on the

 

IN

 

 

 

 

 

 

 

subwoofer that are marked

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

“High Level Out” to the cor-

 

 

 

 

 

 

 

 

 

responding terminals on the

 

 

 

 

Receiver

 

 

 

back of your front left and right

 

 

 

 

 

 

 

speakers.

 

Left Front

 

Center

 

 

Right Front

Connect your receiver or

 

 

 

 

 

+

 

+

 

+

amplifier’s center, left and right

 

 

 

surround-speaker terminals to

 

 

 

 

 

 

 

 

 

the corresponding terminals on

 

 

 

 

 

 

 

 

 

the back of your center, left and

 

 

 

 

 

 

 

 

 

right surround speakers.

 

Left Surround

 

 

 

 

Right Surround

 

 

+

 

 

 

 

+

 

 

Left Surround

 

Right Surround

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+

 

 

 

 

 

 

 

+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

Dolby Pro Logic (Non-Digital) – Line Level

 

 

Use this installation method for

 

preamp (line-) level output:

LFE input on the subwoofer

Dolby Pro Logic appli-cations

 

Use RCA-type patch cords

with Dolby Pro Logic

(not Dolby Digital, DTS® or

 

 

to connect the line-level

processors. Note: If your

other digital processing), where

 

subwoofer outputs on your

receiver or amplifier only has

the receiver/processor is

 

 

receiver or amplifier to the line-

one subwoofer output jack,

equipped with a subwoofer

 

 

level inputs on the subwoofer.

then you will need to use a Y-

output, or a volume-controlled

 

IMPORTANT: Do not use the

connector (not included). Plug

 

 

 

 

 

 

 

 

 

the male end of the Y-

Left Front

 

Center

 

 

Right Front

connector into your receiver or

 

+

 

amplifier’s subwoofer output

 

 

 

 

 

 

+

 

 

 

 

 

+

jack, and connect each of the

 

 

 

 

 

 

 

 

 

two female ends to separate

 

 

 

Subwoofer

 

 

 

RCA-type patch cords. Finally,

 

 

 

 

 

 

plug the RCA-type patch cords

 

 

 

Line-

 

 

 

 

 

 

 

 

 

 

 

into the line-level inputs on the

 

 

 

Level

 

 

 

 

 

 

 

In

 

 

 

 

 

subwoofer.

 

 

 

L

 

 

 

 

 

 

 

 

 

 

 

 

 

Connect each speaker to the

 

 

 

 

 

 

 

 

 

 

 

 

R

 

 

 

 

 

corresponding speaker

 

 

 

Receiver

 

 

 

 

terminals on your receiver or

 

Left

 

Subwoofer

Right

 

 

amplifier.

 

Front

 

Out

 

 

Front

 

 

 

 

+

 

 

 

+

 

 

 

 

 

R

L

 

 

 

 

 

Left

 

Center

 

Right

 

 

 

Rear

 

 

Rear

 

 

 

 

+

+

 

+

 

 

Left Surround

 

 

 

 

 

Right Surround

 

+

 

 

 

 

 

+

 

Dolby Digital or DTS® (or Other Digital Surround Mode) Connection

 

 

RECEIVER

SUBWOOFER

output or subwoofer output

Note:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LINE LEVEL IN

on your receiver or amplifier.

When using the LFE input, the

 

 

 

 

 

 

 

L

 

Connect each speaker to the

subwoofer's Crossover control

 

 

 

 

 

 

 

LFE OUT

 

LFE INPUT

 

 

 

corresponding speaker

is NOT active, because this

 

 

 

 

 

 

 

R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

terminals on your receiver or

function is controlled by your

 

 

 

 

 

 

 

 

 

amplifier.

surround processor.

 

 

Use this installation method for

 

 

Make sure that you have

When using the LFE input, set

 

 

Dolby Digital, DTS® or other

configured your surround-

the subwoofer's Volume control

 

 

digital surround processors:

sound processor for

to "Max" and calibrate the

 

 

Use the line-level input jack

“Subwoofer On.” The front left,

subwoofer level along with the

 

 

marked “LFE” for the Low-

front right, center and rear

other speakers according to

 

 

Frequency Effects channel.

speakers should all be set to

the set-up instructions in the

 

 

 

 

Connect this jack to the LFE

“Small.”

owner's manual for your

 

 

 

 

 

 

 

 

 

 

surround receiver/amplifier.

8

O P E R A T I O N

 

 

 

P H A S E

Press the Master Power

 

not sense a signal after

The Phase Control ™ determines

Switch (marked Power ¡) to

 

approximately twenty minutes,

whether the subwoofer’s piston-

the ON position to use the

 

it will automatically go into

like action moves in and out in

subwoofer. When your receiver

 

standby mode. If you will be

phase with the main speakers or

or amplifier is off, or is not

 

away from home for an

opposite the main speakers. This is

sending program material to

 

extended period of time, or if

adjusted by pressing the button to

the subwoofer, the subwoofer

 

the subwoofer will not be used,

the 0°, or 180° position. The 0°

will be in standby mode. When

 

switch the Master Power

position of the phase button plays

the subwoofer senses an audio

 

switch ¡ to the "OFF" position.

the bass signal in phase with the

signal, it will automatically turn

 

 

 

 

main speakers. The 180° position

itself on. If the subwoofer does

 

 

 

 

plays the bass signal 180º, or out of

 

 

 

 

 

 

 

 

phase with the main speakers.

 

 

 

 

¢

¡

£

Proper phase adjustment depends

 

 

 

 

on several variables such as

 

 

 

 

 

 

 

 

subwoofer placement and listener

 

 

 

 

 

 

 

 

position. Adjust the phase switch to

 

 

 

 

 

 

 

 

optimize bass output at the

 

 

 

 

 

 

 

listening position.

 

 

 

 

 

 

 

Every system, room and listener is

 

 

 

 

 

 

 

 

different. There are no right or

 

 

 

 

 

 

 

 

wrong settings. This switch offers

 

HIGH LEVEL

 

 

 

 

 

the added flexibility to adjust your

 

 

LINE LEVEL IN

 

 

subwoofer for optimum

+

L

R +

 

 

 

 

 

 

performance for your specific

OUT

 

 

 

LFE

L

0° PHASE

 

 

 

 

 

180°

listening conditions without having

IN

 

 

 

R

 

 

 

 

 

 

 

 

to move your speakers. If at some

 

 

 

 

 

 

 

 

IMPORTANT: CONNECT STRIPED WIRE TO RED (+ ) SPEAKER TERMINAL.

 

 

time in the future you happen to

 

 

 

 

 

 

 

 

rearrange your listening room, and

 

 

 

 

 

 

 

 

move your speakers, you should

 

 

 

 

 

 

 

 

experiment with the phase switch

 

 

 

 

 

 

 

 

in both positions, and leave it in the

 

 

 

 

 

 

AC 230V~50Hz

position that optimizes bass

 

 

CAUTION

 

 

performance for your taste.

 

 

 

 

 

200 Watts

 

 

DO NOT OPEN

 

 

 

 

 

 

RISK OF ELECTRIC SHOCK

 

 

 

 

 

Volume

 

 

 

Crossover

 

 

Volume can be adjusted using

 

The crossover filter between

optimum setting for the

the Subwoofer Volume Control

 

the subwoofer and satellites

SCS178 system is with the

£, as shown.

 

 

can be adjusted using the

Crossover Control ¢ set to

 

 

 

 

 

Crossover Control ¢. The

the "Min" position.

Subwoofer

 

 

 

 

 

Subwoofer

 

Level

 

 

 

 

 

Level

 

MIN

MAX

 

 

 

 

 

MIN MAX

 

 

 

 

 

 

 

 

 

9

 

 

T

 

R

O U B L E S H O O T I N G

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• If your receiver/processor is

 

 

 

 

 

 

 

If

 

there is no sound from any of

If there is no sound from the

 

 

 

the speakers:

set in Dolby Pro Logic mode,

surround speakers:

 

 

• Check that receiver/amplifier

make sure the center speaker

• Check all wires and

 

 

is on and a source is playing.

is not in phantom mode.

connections between

 

 

• Check that the powered

• If your receiver/processor

receiver/ amplifier and

 

 

subwoofer is plugged in, its

is set in Dolby Digital or DTS®

speakers. Make sure all wires

 

 

 

 

Power switch ¡ is switched

mode, make sure the

are connected. Make sure

 

 

 

 

on to the “ON•” position.

receiver/processor is con-

none of the speaker wires are

 

 

 

 

 

 

 

 

• Check all wires and

figured so that the center

frayed, cut or punctured.

 

 

connections between

speaker is enabled.

• Review proper operation of

 

 

receiver/ amplifier and

 

 

your receiver/amplifier and its

 

 

speakers. Make sure all wires

If the system plays at low

surround-sound features.

 

 

are connected. Make sure

volumes but shuts off as

• Make sure the movie or TV

 

 

none of the speaker wires are

volume is increased:

show you are watching is

 

 

frayed, cut or punctured.

• Check all wires and connecti-

recorded in a surround-sound

 

 

• Review proper operation of

ons between receiver/

mode. If it is not, check to see

 

 

your receiver/amplifier.

amplifier and speakers. Make

if your receiver/ amplifier has

 

 

 

 

 

 

 

sure all wires are connected.

other surround modes you

 

 

If there is no sound coming

Make sure none of the

may use.

 

 

from one speaker:

speaker wires are frayed, cut

• In Dolby Digital or DTS®

 

 

 

• Check the “Balance” control

or punctured.

modes, make sure your

 

 

 

on your receiver/amplifier.

• If more than one pair of main

receiver/processor is

 

 

 

• Check all wires and con-

speakers is being used, check

configured so that the

 

 

 

nections between receiver/

the minimum impedance

surround speakers are

 

 

amplifier and speakers. Make

requirements of your

enabled.

 

 

sure all wires

are connected.

receiver/amplifier.

• Review the operation of your

 

 

Make sure none of the

 

 

DVD player and the jacket of

 

 

speaker wires are frayed, cut

If there is low (or no) bass

your DVD to make sure that

 

 

or punctured.

output:

the DVD features the desired

 

 

• In Dolby Digital or DTS®

• Make sure the connections to

Dolby Digital or DTS® mode,

 

 

modes, make sure that the

the left and right “Speaker

and that you have properly

 

 

receiver/processor is

Inputs” have the correct

selected that mode using both

 

 

configured so that the

polarity (+ and –).

the DVD player’s menu and

 

 

speaker in question is

• Make sure the subwoofer is

the DVD disc’s menu.

 

 

enabled.

plugged into an active

 

 

 

 

 

 

 

 

 

 

 

 

 

electrical

outlet.

 

 

 

 

 

 

 

 

If there is no sound from the

• Make sure

the powered

 

 

 

 

 

 

 

 

center speaker:

subwoofer

is plugged in and

 

 

 

 

 

 

 

 

• Check all wires and

switched on.

 

 

 

 

 

 

 

 

connections between

• In Dolby Digital or DTS®

 

 

 

 

 

 

 

 

receiver/

modes, make sure your

 

 

 

 

 

 

 

 

amplifier and speaker. Make

receiver/processor is

 

 

 

 

 

 

 

 

sure all wires are connected.

configured so that the

 

 

 

 

 

 

 

 

Make sure none of the

subwoofer and LFE output are

 

 

 

 

 

 

 

 

speaker wires are frayed, cut

enabled.

 

 

 

 

 

 

 

 

or punctured.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

Declaration of Conformity

We, Harman Consumer International

2, route de Tours

72500 Château-du-Loir

France

declare in own responsibility, that the product described in this owner’s manual is in compliance with technical standards:

EN 60065:1998

EN 55013/A14:1999

EN 55020/A14:1999

EN 61000-3-2/A14:2000

EN 61000-3-3/1.1995

EN 50081-1:1992

EN 50082-1:1992

Luc

JBL,

Harman Consumer International

France, 08/01

11

S P E C I F I C A T I O N S

SCS178 Satellite

 

Frequency Response (-6dB):

90Hz – 22kHz

Sensitivity (2.83V/1m):

86dB

Nominal Impedance:

4 Ohms

Recommended Amplifier Power

25 – 100 Watts RMS per Channel

Drive Units:

12mm Polyamide/Titanium Laminate Video-shielded HF

 

100mm Paper Cone Video-shielded Mid/Bass

Dimensions (H x W x D):

235mm x 140mm x 179mm (9.3" x 5.5" x 7")

Weight:

2.8kg (6.2lb)

SCS178 Center

 

Frequency Response (-6dB):

100Hz – 22kHz

Sensitivity (2.83V/1m):

88dB

Nominal Impedance:

4 Ohms

Recommended Amplifier Power

25 – 100 Watts RMS per Channel

Drive Units:

12mm Polyamide/Titanium Laminate Video-shielded HF

 

Dual 100mm Paper Cone Video-shielded Mid/Bass

Dimensions (H x W x D):

145mm x 402mm x 155mm (5.7" x 15.8" x 6.1")

Weight:

4.5kg (9.9lb)

SCS178 Active Subwoofer

 

Low Frequency Cut-off:

35Hz

High Frequency Cut-off:

40 Hz - 160Hz Variable

Built-in Power Amplifier:

100 Watts RMS

Drive Unit:

200mm Paper Cone Long Throw Driver. Bass Reflex Enclosure

Dimensions (H x W x D):

450mm x 250mm x 360mm (17.7" x 9.8" x 14.2")

Weight:

13.6kg (30lb)

SCS178 System

 

Frequency Response (-6dB):

35Hz – 20kHz

Refinements may be made on occasion to existing products without notice, but will always meet or exceed original specifications unless otherwise stated. Simply Cinema is a registered trademark of JBL, Incorporated.

*Dolby and Pro Logic are trademarks of Dolby Laboratories. DTS® is a registered trademark of Digital Theater Systems, Inc.

O W N E R ’ S G U I D E

PRODUCT LINE:

®

MODEL SCS178 (230V)

NUMBER:

DESIGN GOAL: Bring the thrill of live performance and movie sound to the home environment by calling on JBL’s professional engineering leadership.

SATELLITE TYPE:Titanium-laminate-dome tweeter, reflex-loaded enclosure

SUBWOOFER TYPE: Bass-reflex enclosure

PORT DESIGN: FreeFlow™ flared

P R O S O U N D

C O M E S H O M E

JBL Consumer Products

250 Crossways Park Drive, Woodbury, NY 11797 Europe: 2. Route de Tours, 72500 Château du Loir, France

www.jbl.com

©2001 JBL, Incorporated.

JBL is a registered trademark of JBL, Incorporated.

Part No.1111-SCS178

PROFESSIONAL REFERENCE: Cinema Loudspeaker Series