CONGRATULATIONS Thank you for choosing the OS3 Indoor/Outdoor Loudspeaker from Niles. With proper installation and operation, you'll enjoy years of trouble-free use. Niles manufactures the industry's most complete line of custom installation components and accessories for audio/video systems. For a free full line catalog write: Niles, Catalog Request, P.O.
It is supplied with a swiveling mount- ing bracket for easy installation anywhere. In addition, our engineers constructed the OS3's to withstand the stresses and strains of the world outside! Now anyone can affordably enjoy a concert on the green in their own back yard.
The smooth, extended frequency response of this unique tweeter assures great stereo imaging and remarkable clarity. TAPERING SHAPE The cabinet of the OS3 is shaped so that the speaker will tuck discretely away into corners or under eaves. RIGID, ACOUSTICALLY INERT ENCLOSURE The cabinet of the OS3 is composed of mineral filled polypropylene.
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EASY THREE-WAY MOUNTING SYSTEM 1. The OS3 can be hung from a nail using the nail hole on the bracket. 2. The bracket can be screwed into the mounting surface using your hardware.
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OS3 Parts Guide a. Bracket b. Nail Hole c. Wire Hole d. Screw Hole e. Bracket Knob Grille g. Cabinet h. Baffle Binding Posts Threaded Inserts...
(See Figure 2). For most applications, we recommend using 16 or 18 gauge wire. For wiring runs longer than 80 feet, we recommend 14 gauge wire. The binding posts of the OS3 will accommodate up to 12 gauge wire directly. Larger sizes can be accommodated using spade, banana, or pin connectors.
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Figure 2 Wiring directly from a receiver or amplifier INCORPORATING A VOLUME CONTROL It’s possible to control the volume of the sound at the speaker location. Plan to wire the system so that each pair of speakers has its own volume control. Niles makes a wide range of indoor and outdoor volume controls.
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PLACING THE OS3 FOR THE BEST SOUND QUALITY The OS3’s dispersion pattern is very broad. The speaker is very sensitive and will handle a lot of amplifier power. This allows good sound quality over an extremely large listening area. However, if a single pair is positioned to provide coverage of a very large room or patio, you will have “hot spots”...
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You can increase the bass output even more by mount- ing the OS3 in a corner or under an eave (See Figure 5) This type of placement gives the speaker two boundaries, both reinforcing the bass sounds. Of course, if you wish to hear less bass, try moving the speaker away from the boundary (See Figure 6).
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Be careful to use hardware that is designed for the surface you are mounting to. The OS3 with the bracket weighs 4 lbs. 8 oz. If you are not sure of a safe way to mount the speakers, consult a professional installer or a building contractor.
PAINTING THE OS3 The enclosure, the brackets, and the grilles of the OS3 can all be painted to match the surroundings. Because we want you to preserve the acoustic quali- ties of the grille, please paint the grille according to the grille painting instruc- tions.
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PAINTING THE GRILLE The grille is important to the sound of the OS3. Do not fill the holes of the grille with paint. The grille is constructed of aluminum with a perfectly even powder coat overall.
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If you are using an applicator or brush and a can of paint, thin the paint first. Thick paint will tend to clog the grille holes. REPLACING THE GRILLE Carefully fit the grille into its recess so that it is barely in place. Starting with one corner, go around the speaker, pushing the grille in a little bit each time.
INSTALLATION MOUNTING THE BRACKET 1. Remove the bracket knobs and the bracket from the speaker. 2. Hold the bracket up to the mounting surface. The speaker can be mounted either horizontally or vertically. Hold the bracket so that the speaker wire fits through the large, circular wire hole in the bracket.
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CONNECTING THE SPEAKER 1. Separate the two conductors of the speaker wire so that at least two inches of each conductor are free. 2. Strip one half inch of insulation from the end of each conductor of the speaker wire. 3.
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3. Stand so you are the same distance from each speaker and listen to the rich- ness of the bass and the loudness of the sound. 4. Turn off the amplifier and reverse the connections on one speaker only. 5. Repeat the listening test with the same setting of the volume control. When the sound has a richer bass and is slightly louder the speakers are working together or “in-phase”.
CLEANING You can clean the OS3's with a dampened soft cloth or paper towel. If the speaker is mounted high up on a wall or ceiling, use a broom to gently brush it off. Hosing off the speaker is not recommended, as the tweeter is a precise...
SPECIFICATIONS RECOMMENDED AMPLIFIER POWER Five to 75 watts per channel NOMINAL IMPEDANCE 8 Ohms FREQUENCY RESPONSE 110Hz to 20kHz, plus or minus 5 dB (on axis) SENSITIVITY 91 decibels for 2.83 volts of Pink Noise, measured at 1 meter on axis WIRING REQUIREMENTS Sixteen to eighteen gauge 2-conductor (unshielded or shielded) wire for runs up to 80 feet.
LIMITED WARRANTY Niles Audio Corporation ("NILES") warrants its outdoor loudspeaker products to the original purchaser to be free of manufacturing defects in material and workmanship for a period of two years from date of purchase. This Warranty is subject to the following additional conditions and limitations. The Warranty...
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PLEASE FILL OUT THE WARRANTY REGISTRATION CARD ON THE REVERSE SIDE, DETACH, AND MAIL TO: Niles Audio Corporation Warranty Registration Dept. P.O. Box 160818 Miami, Florida 33116-0818...