Alesis RA500 User Manual - Page 11

Chapter 2: Connections CHAPTER 2 CONNECTIONS UNPACKING AND INSPECTION Your Alesis RA150/300/500 was carefully packed at the factory, and the shipping carton was designed to protect the unit during shipping. Do not discard the packing materials; they may be helpful in the unlikely event that you need to return your RA150/300/500 for servicing, or for transporting the amplifier when it is not mounted in a rack or other enclosure. The shipping carton should contain the following items: • RA150/300/500 amplifier • This instruction manual • Power cable • Alesis Warranty card POWER CONSIDERATIONS THE AC CORD AND GROUNDING The RA150/300/500's IEC-spec AC cord (do not substitute any other type of AC cord) is designed to connect to an outlet that includes three pins, with the third, round pin connected to ground ("earth"). The ground connection is an important safety feature designed to keep the chassis of electronic devices such as the RA150/300/500 at ground potential. Unfortunately, the presence of a ground contact in an AC socket does not always indicate that an outlet is properly grounded. Use an AC line tester to determine this. If the outlet is not grounded, consult with a licensed electrician. The audio ground (pin 1 of the XLR, the sleeve of the 1/4" jack) is not isolated from the chassis. It is important to register your purchase; if you have not already filled out your warranty card and mailed it back to Alesis, please take the time to do so now. Carefully unpack the amplifier and inspect it for physical damage originating in shipping. If damage is discovered and the amplifier was shipped to you, immediately contact the transportation carrier and make certain that the packing materials are preserved for inspection. You as the consignee must make any shipping claims; neither your dealer nor Alesis can do this for you. If the amplifier was not shipped to you, i.e. you picked it up from your dealer, contact the dealer as soon as possible for assistance. Tip: You don't have to use the provided 6-foot long AC cord. Many electronic stores carry the standard "NEMA-to-CEE" cable in lengths from 6 inches to 20 feet. This is better than wrapping the cord in a coil if it is too long, or using extension cords if it is too short. DO NOT OPERATE ANY ELECTRICAL EQUIPMENT WITH UNGROUNDED OUTLETS. PLUGGING THE RA150/300/500 INTO AN UNGROUNDED OUTLET, OR "LIFTING" THE UNIT OFF GROUND WITH A THREE-TO-TWO WIRE ADAPTER, CREATES A HAZARDOUS CONDITION. ALESIS CANNOT BE RESPONSIBLE FOR PROBLEMS CAUSED BY USING THE RA150/300/500 OR ANY ASSOCIATED EQUIPMENT WITH IMPROPER AC WIRING. RA150/300/500 Reference Manual 9