read first! Important Safety Precautions!

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION: To prevent electric shock, do not remove the grounding plug on the power cord, or use any plug or extension cord that does not have a grounding plug provided.

Make certain that the

AC outlet is properly grounded.

Do not use an adapter plug

with this product.

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 product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.

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

1.Read Instructions. All the safety and operating instructions should be read before the product is operated.

2.Retain Instructions. The safety and operating instructions should be retained for future reference.

3.Heed Warnings. All warnings on the product and in the operating instructions should be adhered to.

4.Follow Instructions. All operating and use instructions should be followed.

5.Cleaning. Unplug this product from the wall outlet before cleaning. Do not use liquid cleaners or aerosol cleaners. Use a damp cloth for cleaning.

6.Attachments. Do not use attachments not recommended by the product manufac- turer, as they may cause hazards.

7.Water and Moisture. Do not use this product near water – for example, near a bathtub, wash bowl, kitchen sink or laundry tub; in a wet basement; or near a swimming pool; and the like.

8.Accessories. Do not place this product on an unstable cart, stand, tripod, bracket, or table. The product may fall, causing serious injury to a child or adult, and serious dam- age to the product. Use only with a cart, stand, tripod, bracket, or table recommended by the manufacturer, or sold with the prod- uct. Any mounting of the product should follow the manufacturer’s instructions, and should use a mounting accessory recom- mended by the manufacturer.

9.A Product and Cart Combination Should Be Moved with Care. Quick stops, excessive force, and uneven surfaces may cause the product and cart combination to overturn.

10.Ventilation. Slots and openings in the cabinet are provided for ventilation and to ensure reliable operation of the product and to protect 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. This product should not be placed in a built-in installation such as a bookcase or rack unless proper ventila- tion is provided or the manufacturer’s instructions have been adhered to.

11. Power Sources. This product should be

18. Overloading. Do not overload wall out-

operated only from the type of power source

lets, extension cords, or integral conve-

indicated on the marking label. If you are

nience receptacles, as this can result in a

not sure of the type of power supply to your

risk of fire or electric shock.

home, consult your product dealer or local

19. Object and Liquid Entry. Never push

power company. For products intended to

objects of any kind into this product

operate from battery power, or other

through openings, as they may touch dan-

sources, refer to the operating instructions.

gerous voltage points or short-out parts that

12. Grounding or Polarization. This product

could result in a fire or electric shock. Never

may be equipped with a polarized alter-

spill liquid of any kind on the product.

nating-current line plug (a plug having one

20. Servicing. Do not attempt to service

blade wider than the other). This plug will

this product yourself, as opening or remov-

fit into the power outlet only one way. This

ing covers may expose you to dangerous

is a safety feature. If you are unable to

voltage or other hazards. Refer all servicing

insert the plug fully into the outlet, try

to qualified service personnel.

reversing the plug. If the plug should still

21. Damage Requiring Service. Unplug this

fail to fit, contact your electrician to replace

your obsolete outlet. Do not defeat the

product from the wall outlet and refer ser-

safety purpose of the polarized plug.

vicing to qualified service personnel under

13. Power-Cord Protection. Power-supply

the following conditions:

a. The power-supply cord or the plug has

cords should be routed so that they are not

been damaged; or

likely to be walked on or pinched by items

b. Objects have fallen onto, or liquid has

placed upon or against them, paying partic-

been spilled into, the product; or

ular attention to cords at plugs, convenience

c. The product has been exposed to rain or

receptacles, and the point where they exit

water; or

from the product.

d. The product does not operate normally

14. Nonuse Periods. The power cord of the

when following the operating instructions.

product should be unplugged from the outlet

Adjust only those controls that are covered

when left unused for long periods of time.

by the operating instructions, as an improper

15. Outdoor Antenna Grounding. If an out-

adjustment of other controls may result in

damage and will often require extensive

side antenna or cable system is connected

work by a qualified technician to restore the

to the product, be sure the antenna or cable

product to its normal operation; or

system is grounded so as to provide some

e. The product has been dropped or damaged

protection against voltage surges and built-

in any way; or

up static charges. Article 810 of the National

f. The product exhibits a distinct change

Electrical Code, ANSI/NFPA 70, provides

in performance – this indicates a need for

information with regard to proper grounding

service.

of the mast and supporting structure,

22. Replacement Parts. When replacement

grounding of the lead-in wire to an antenna

discharge unit, size of grounding conductors,

parts are required, be sure the service tech-

location of antenna-discharge unit, connec-

nician has used replacement parts specified

tion to grounding electrodes, and require-

by the manufacturer or that have the

ments for the grounding electrode. See

same characteristics as the original part.

Figure 1.

Unauthorized substitutions may result in

16. Lightning. For added protection for this

fire, electric shock or other hazards.

23. Safety Check. Upon completion of any

product during a lightning storm, or when

it is left unattended and unused for long

service or repairs to this product, ask the

periods of time, unplug it from the wall out-

service technician to perform safety checks

let and disconnect the antenna or cable sys-

to determine that the product is in proper

tem. This will prevent damage to the product

operating condition.

due to lightning and power-line surges.

24. Wall or Ceiling Mounting. The product

17. Power Lines. An outside antenna system

should be mounted to a wall or ceiling only

should not be located in the vicinity of

as recommended by the manufacturer.

overhead power lines or other electric light

25. Heat. The product should be situated

or power circuits, or where it can fall into

away from heat sources such as radiators,

such power lines or circuits. When installing

heat registers, stoves, or other products

an outside antenna system, extreme care

(including amplifiers) that produce heat.

should be taken to keep from touching such

 

 

power lines or circuits, as contact with them

 

 

might be fatal.

 

 

Figure 1.

 

 

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)￿

 

 

 

 

 

￿

 

 

 

 

 

Grounding Conductors (NEC Section 810-21)￿

 

 

 

 

 

￿

 

 

 

 

 

Electric Service Equipment￿

 

 

 

 

 

￿

 

 

 

 

 

Ground Clamps￿

 

 

 

 

 

￿

 

 

 

 

 

Power Service Grounding Electrode System￿

 

 

 

 

 

(NEC Art 250, Part H)

 

 

 

 

 

 

Part No. JBLULB 6/96

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JBL ECS300 setup guide Read first! Important Safety Precautions

ECS300 specifications

The JBL ECS300 is an exceptional subwoofer designed for audiophiles and enthusiasts seeking powerful, precise bass performance. As an integral part of JBL’s lineup, this subwoofer blends impressive technology and thoughtful design, providing an immersive audio experience that complements any home theater or music system.

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Another noteworthy characteristic is the inclusion of multiple connectivity options. The ECS300 comes equipped with both RCA LFE and line-level inputs, making it compatible with a wide range of receivers and audio sources. This flexibility ensures that users can easily incorporate the subwoofer into their existing systems.

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