User manual BOSTON ACOUSTICS HSI 430

[. . . ] The mechanical factors have to do with the structural parts inside the ceiling. If you are installing the speakers in new construction it is easy to take this into account. Simply select the installation locations before the wall board goes up. First, you must know the locations of the ceiling rafters to be sure the installation location is between them. [. . . ] Such systems use a special amplifier that has a "70V" (or in some countries, "100V") output. This allows relatively small gauge speaker wires to be run over great distances without signal degradation. Special versions of the HSi series speakers with built-in transformers are available. Always turn off the amplifier or receiver when connecting speakers or any other components to the system. Possesses skill in the proper use of hand and power tools, knowledge of local building and fire codes, and a familiarity with the environment behind the wall or ceiling in which the speakers will be installed. A utility knife, jig saw, or other tool for cutting the required hole in the mounting surface. Insert a long, bent piece of wire and rotate to confirm that there are no obstructions behind the chosen location. Open up the clamp and insert about 2" (50mm) of wire through the opening. Note: If there is a jacket around the two wire conductors fasten the clamp to the jacketed part of the wire. Remove the jacket from the part of the wire that extends beyond the clamp. insert the wires into the appropriate terminals on the connector and tighten the screws on the side of the connector to secure the wire. Just before the speaker is mounted plug the connector into the back of the speaker. Finally rotate the cover plate into position and tighten the fasteners to hold it in place. It is important that all the speakers in a system are hooked up with the same polarity or "in phase. " Instead of the wire terminals typical of most speakers, the HSi 430 and 435 models are supplied with a Molex plug-in connector to facilitate installation. Speaker wires are connected to the plug-in connector then, just before installing the speaker, the Molex connector is plugged in. This illustration shows the connector on the speaker and the plug-in connector the speaker wires are attached to. It shows the middle two pins on the connectors are "+" and "-". The outer two pins are labeled "LOOP +" and "LOOP ­". The "LOOP" connections are connected to the regular "+" and "­" connections inside the speaker and facilitate connecting multi-speaker installations. Use the color coding or other marking on the speaker wires to be sure that the "+" terminal of the amplifier is connected to the "+" terminal of the speaker, and "­" is connected to "­", at every connection. Sometimes you may want to connect more than one speaker to a given channel of an amplifier. [. . . ] Boston Acoustics warrants to the original purchaser of our HSi loudspeakers that they will be free of defects in materials and workmanship for a period of 5 years from the date of purchase. Your responsibilities are to install and use the system according to the instructions supplied, to provide safe and secure transportation to an authorized Boston Acoustics service representative, and to present proof of purchase in the form of your sales slip when requesting service. Excluded from this warranty is damage that results from abuse, misuse, improper installation, accidents, shipping, or repairs/ modifications by anyone other than an authorized Boston Acoustics service representative. This warranty is limited to the Boston Acoustics product and does not cover damage to any associated equipment. [. . . ]