Niles Audio PR6 manual Installing the Speaker, See Figure Speaker Phase

Figure 13

Installation of the Speaker and Grille for New or Existing Construction

Installing the Speaker

If the grille is already installed, remove it by using a bent paper clip or the tip of a corkscrew and pulling it away from the frame (See Figure 13).

1.Separate the speaker end of the two-conduc- tor speaker-wire run to

free at least 2” of each conductor.

Figure 1

2.Strip 1/2” of insulation from the end of each conductor. (See Figure 1)

3.To connect the stripped end of one conductor to the black terminal, push down on the black terminal lever. Insert the stripped end of the conductor into the opening. Release the pressure on the lever.

4.Repeat #3 with the other conductor and the red terminal.

5.Connect the opposite ends of these con- ductors to their respective amplifier ter- minals. Pay attention to the markings on the wire. If you are unsure which conductor to insert into which terminal, see the section titled “Speaker Phase” in the owner’s manual.

6.Repeat these instructions for each speaker you are connecting to the ampli- fier.

7.Place the speaker baffle in the frame by inserting the tabs at the base of the speaker baffle into the cor- responding holes in the

frame and pushing the speaker forward until the snaps engage. (See Figure16)

8.IMPORTANT: When installing the speakers in the ceiling, or if the instal- lation is in an earthquake zone, it is rec- ommended that you utilize the enclosed sheet metal screws to secure the baffle to the frame.

a. Locate the dimples on the front baffle. b. Place the self-tapping sheet metal screw

in the dimple and turn it with a screw driver until it cuts through the baffle and anchors securely in the frame.

(See Figure 17)

Figure 16

Figure 17

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 convenience. There are different ways wires are marked: a stripe on one wire, a ribbed area of one conductor you can only feel, different col- ors 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, or you might make a mistake.

If you make a mistake, 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 be “phasey” sounding. If you suspect the sound is not right and you cannot see any markings on the wire, try this simple test:

1.Stand half way between the two speak- ers.

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

3.Listen to the richness of the bass and the loudness of the sound.

4.Turn off the amplifier and reverse the con- nections on one amplifier channel 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”.

Adjusting the Bass and Treble Controls

The PR Performance loudspeakers feature separate baffle-mounted bass and treble controls for fine tuning after installation. Each control provides for approximately 3dB in steps of 1dB of Bass or Treble reduction. This is useful if the speakers are placed near boundaries (Bass Cut) or in a room with highly reflective sur- faces like glass or tile. (Treble Cut). (See

Figure 18)

Figure 18

Installation of the Speaker and Grille for New or Existing Construction

17 18