Niles Audio HDCTR, HDLRS manual Operation, Speaker Phase, Listening at Higher Volumes, Cleaning

Installation of the Speaker and Grille for New or Existing Construction

corner, go around the speaker, pushing the grille in a little bit each time. You should be gentle, the aluminum grille can be easi- ly bent out of shape. The speaker will have an absolutely flush appearance when it is fully in place.

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 speakers.

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 connections 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”.

Operation

Listening at Higher Volumes

It requires more power to achieve a rea- sonable volume of sound in a large room than it does in a small room. It is possi- ble (even if you are not a teenager) to turn the volume so high that the amplifi- er runs out of power. This creates “clip- ping” distortion.

Clipping distortion makes treble sound very harsh and unmusical. When you hear harsh sounding treble from any good speaker, turn the volume down immedi- ately! Those harsh sounds are masking some much more powerful ultra-high-fre- quency sound spikes which will quickly damage any fine loudspeaker. You are much less likely to damage a speaker with a large amplifier because it will be very loud indeed before it produces any clip- ping distortion.

Cleaning

You can clean the speaker with a damp- ened 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.

Operation

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