8
How to Connect
How to Connect
Right Front Loudspeaker
Left Front Loudspeaker
The McIntosh LS340 Loudspeaker System utilizes binding
posts for speaker wire connections. Refer to figure 3.
1. Connect a loudspeaker cable from the black (negative - )
loudspeaker binding post to the negative or common out-
put terminal of one channel of the amplifier.
2. Connect a loudspeaker cable from the red (positive + )
loudspeaker binding post to the positive or 4 ohm output
terminal of the same channel of the amplifier.
3. Tighten all of the loudspeaker and amplifier binding
posts.
Speaker Connections
To Amplifier Terminals
Figure 3
-
How to Connect to Two Stereo Amplifiers for a Bi-
Amplified Configuration
The McIntosh LS340 Loudspeaker System utilizes two pairs
of binding posts for bi-amplified speaker wire connections.
Refer to figure 3.
Bi-amplification allows the use of multiple smaller ampli-
fiers connected to one loudspeaker, which increases the
acoustical output.
Note: Output levels of the two amplifiers connected to the
HIGH and LOW Loudspeaker Input Terminals must
be adjusted to achieve a proper balance between the
high and low frequencies reproduced. This
adjustment is best achieved through the use of audio
test equipment operated by a qualified installer.
1. Remove the gold interconnecting straps from the two
pairs of binding posts on the speakers.
2. Connect a loudspeaker cable from the upper (HIGH),
black (negative - ) binding post of the right loudspeaker
to the negative or common output terminal of the right
channel on the amplifier to be used for high and mid-
range frequencies.
3. Connect a loudspeaker cable from the upper (HIGH), red
(positive + ) binding post of the right loudspeaker to the
positive or 4 ohm output terminal of the right channel of
the amplifier to be used for high and mid-range frequen-
cies.
4. Repeat steps 1, 2 and 3 for the left channel speaker and
amplifier to be used for high and mid-range frequencies.
5. Connect a loudspeaker cable from the lower (LOW),
black (negative - ) binding post of the right loudspeaker
to the negative or common output terminal of the right
channel on the amplifier to be used for low frequencies.
6. Connect a loudspeaker cable from the lower (LOW), red
(positive + ) binding post of the right loudspeaker to the
positive or 4 ohm output terminal of the right channel of
the amplifier to be used for low frequencies.
7. Repeat steps 5 and 6 for the left channel speaker and am-
plifier to be used for low frequencies.
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