Important Safety Precautions

THE BEAUTY OF POWER

US SERIES AMPLIFIERS

1. Read Instructions – All the safety and

operating instructions should be read before this

product is operated.

2. Retain Instructions – The safety and

operating instructions should be retained for future

reference.

3. Heed Warnings – All warnings on the

amplifier and in the operating instructions should

be adhered to.

4. Follow Instructions – All operating and

use instructions should be followed.

5. Water and Moisture – The amplifier should

not be used near water - for example, a bathtub,

washbowl, kitchen sink, laundry tub, wet basement, or

near a swimming pool, and the like.

6. Carts and Stands – The amplifier should

be moved with a sturdy cart. An amplifier and cart

combination should be moved

with care. Quick stops, excessive

force, and uneven surfaces may

cause the amplifier and cart

combination to overturn.

7. INSTALLATION – Install in accordance with the

manufacturer’s instructions and local codes.

8. Heat – The amplifier should be situated away

from heat sources such as radiators, heat registers,

stoves, or other appliances that produce heat.

9. Power Sources – This product should be

operated only from the type of power source indicated

on the rating label. If you are not sure of the type

of power supply to your home, consult your product

dealer or local power company.

10. Grounding or Polarization – This

product may be equipped with a polarized alternation-

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

amplifier should be unplugged from the outlet when left unused for a long period of time.

14.Object and Liquid Entry – Care should be taken so that objects do not fall and liquids are not spilled into the amplifier through openings.

15.Damage Requiring Service – The amplifier should be serviced by qualified service personnel when:

A.The power-supply cord or the plug has been damaged; or

B.Objects have fallen, or liquid has been spilled into the amplifier; or

C.The amplifier has been exposed to rain; or

D.The amplifier does not appear to operate normally or exhibits a marked change in performance; or

E.The amplifier has been dropped, or the chassis damaged.

16.Servicing – The user should not attempt any service to the amplifier beyond that described in the operating instructions. All other servicing should be referred to qualified service personnel.

17.Ventilation – Slots and openings in the amplifier 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 ventilation as per the manufacturer’s instruc- tions have been adhered to.

18.GROUNDING – Always maintain reliable grounding of the rack and all equipment installed in the rack.

19.POWER – The power switch in your amplifier is not all-pole AC switch. You must physically disconnect AC power cord from either amplifier or AC outlet to fully disconnect it from AC mains. Make sure you have access to the power cord if you need to disconnect it in case of emergency.

20.Lightning – For added protection for this product 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 product due to lightning and power-line surges.

21.Replacement Parts – When replacement parts are required, be sure the service technician has used replacement parts specified by the manufacturer or have the same characteristics as the original part.

Unauthorized substitutions may result in fire, electric shock, or other hazards.

22.Safety Check – Upon completion of any service or repairs to this product, ask the service technician to perform safety checks to determine that the product is in proper operating condition.

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.

11. Power Cord Protection – Power-supply

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 the cord in cor-

respondence of plugs, convenience receptacles, and the

point where they exit from the amplifier.

12. Cleaning – The amplifier should be cleaned

only as recommended by the manufacturer. Clean by

wiping with a cloth slightly damp with water. Avoid

getting water inside the amplifier.

13. Non-use Periods – The power cord of the

CAUTION: To reduce the risk of electric shock, do not remove any cover. No user-serviceable parts inside. Refer servicing to qualified service personnel only.

The lightning flash with arrowhead symbol within the equilateral triangle is intended to alert the use to the presence of un-insulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock.

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

CAUTION

To prevent electric shock, do not use a polarized plug with an extension cord, receptacle or other outlet unless the blades can be fully inserted to prevent blade exposure.

B-52 US Series Professional Power Amplifiers - Instruction Manual

ETI Sound Systems, INC US-1800, US-4000, US-1200, US-3000 owner manual Important Safety Precautions