C. Important of Correct Polarity
Speakers must be connected or “phased” identically. Coding on the leads
makes this simple. Leads are coded by colour, insulation pattern, or insulation
rib. For the first speaker, either lead can be connected to either speaker
terminal. Then, the second speaker must be connected in exactly the same
way. Likewise, either lead from the right speaker can be connected to either
terminal of the right channel amplifier output, as long as the same coded
connection is used for the left channel. Connecting speakers identically to each
channel is facilitated by the coding of the speaker terminals on your amplifier
which uses + and -, different colours, or other means to indicate polarity (see
your amplifier’s operating instructions). AMC speakers use colour coded
terminals to indicate polarity.
+ - - +
Amplifier
Right Left
Following the correct polarity connection indicated above will ensure you of a
system that is “in phase” … a necessity for full bass output and a precise stereo
image.
A simple test serves as a double-check for proper phase connection. After
completing the connecting procedure, place your speakers face-to face, and
within a few inches of each other. Set the amplifier to Mono, listen to some
music and reverse the connections on one speaker. Whichever setting gives a
louder and more complete sound is phased correctly.
Your Listening Room
Two major factors determine how your loudspeakers will perform in your
listening room:
A.
contents or physical makeup of listening room
B.
speaker placement within the room
A.
Contents of the Room
Everything we hear is made up of direct sound and reflected sound. Direct
sound comes directly from the source to our ears, while reflected sound
“bounce off” something first. Certain materials don’t reflect sound as well as
others, or not at all. Thus, the same sounds can be perceived as different
depending on the amount of reflection which reaches us along with the direct
sound.
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