GoldenEar Invisa MPX - Manual (Page 8)

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Invisa® MPX Owner’s Manual
5. For In-Wall Mounting:
• For optimum performance, loosely place two pieces of standard fi berglass insulation in the wall,
one just above the hole and one just below. An 8" x 10" piece should work well, R-12 for a 2x4 wall,
R-20 for a 2x6 wall.
• Also place a half-think piece of fi berglass insulation cut to the height of the speaker in the wall right
behind the mounting hole.
6. For In-Ceiling Mounting:
• For optimum performance, loosely place one piece of standard fi berglass insulation, cut to fi t the
joist size, above the speaker and extending about 15" or more beyond the speaker;
• For taller joists, also place fi berglass insulation against the joists on either side of the mounting hole.
7. Pull the speaker wire out of the hole and connect the speaker as follows:
• Your Invisa ® MPX speakers are equipped with a set of high-quality push spring connectors that can be
used with bare wire. Make sure all wires are fi rmly fastened. Always use high quality speaker wire of the
correct rating (see above) and suffi cient gauge for the distances you are running (see your dealer
for assistance).
• Strip 1 /
2
" (12 mm) of insulation from each of the two
conductors to expose the metal, twist the strands
of each into a single un-frayed strand.
• Hold the speaker up to the cutout and connect the
speaker cable. Proper polarity (or phase) is critical for
proper stereo imaging and bass performance. Connect
the red(+) terminal of your receiver or amplifi er to the
red(+) terminal of the Invisa loudspeaker and the black(-)
terminal of your receiver or amplifi er to the black(-)
terminal of the Invisa
loudspeaker (See Figure 3).
Most speaker cables are
either color coded or have
some indicator (ribbing or
writing) on one of the
conductors to help maintain this consistent polarity.
It is essential that all speakers be connected in the
same way (in phase) to its own channel of the amplifi er.
If you experience a great lack of bass, it is likely that one
speaker is out of phase (+ and – reversed) with the other.
• Push down on the top of the speaker’s push terminal
to reveal the wire hole in the post. Insert the wire
into the hole and release your pressure on the terminal.
8
Turn your amplifi er/receiver OFF before performing any connection steps, in order to prevent
accidental damage to your amplifi er.
If you plan to use multiple speakers per amplifi er channel. The minimum impedance of ONE Invisa
in-wall/in-ceiling speaker is 4 ohms per channel.
Figure 3