Niles Audio OS-20 manual Installation, Mounting the Bracket, Connecting the Speaker, Speaker Phase

INSTALLATION

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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. Align the bracket to be square with the surroundings (use a level for accuracy).

3.Mark the locations of the three oval-shaped screw holes (See Figure 9). Be sure to use all of the holes.

4.Drill pilot holes into the mounting surface.

Figure 9

Mounting the

OS-20

5.Pull the speaker wire through the wire hole in the center of the mounting bracket. Align the bracket so that the holes all line up.

6.Use your hardware to attach the bracket to the mounting surface.

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.If you have any connectors (gold pins or bananas) which you prefer to use, affix them to the stripped wire ends now. Only gold plated connectors should be used outside as they will not tarnish or corrode.

4.Use the bracket knobs to attach the speaker to the bracket. Do not tight- en the knobs completely. Angle the speaker so that the rear terminals are accessible.

5.Connect one stripped wire end (or connector) to the black and one to the red terminal. Pay attention to the markings on the wire. Each speaker must be connected to the amplifier in the same way.

Speaker Phase

Speaker wire has two conductors. One conductor is attached to the negative (-) terminals and one conductor is attached to the positive (+) terminals of both your speaker and your amplifier. Usually, the wire is marked for your conve- nience. There are different ways to mark the wire; a stripe on one wire, a ribbed area of one conductor you can only feel, different colors of metal wire on each conductor, or there might be a fabric strand or string wound into one of the conductors. Of course, there are some wires which appear completely identical. Be careful to avoid mistakes. If you do, one speaker will be playing out of “phase” with the other speaker. An out-of-phase pair of speakers work against each other and the sound of the two speakers playing together will be lacking in bass and “phasey” sounding. If you suspect the sound is not right and you cannot see any markings on the wire, try this simple test:

1.Point the speakers at each other, rather than at you.

2.Play some music with the amplifier or radio set to Mono.

INSTALLATION

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