Read JBL S 2600 User Guide / Operation Manual online
S2600/S3100 LOUDSPEAKER SYSTEMS
5
For a listener seated equidis-
tant between these, or any other
loudspeakers, stereo imaging will
be accurate. However, with conven-
tional loudspeakers, as the listener
moves off axis the stereo stage
becomes skewed toward the closer
loudspeaker. The reason for this is
that the sound from the nearer
loudspeaker is louder and arrives at
the listener’s ears slightly earlier.
Both of these cues favor localiza-
tion at the nearer loudspeaker, and
the soundstage is skewed accord-
ingly.
loudspeakers, stereo imaging will
be accurate. However, with conven-
tional loudspeakers, as the listener
moves off axis the stereo stage
becomes skewed toward the closer
loudspeaker. The reason for this is
that the sound from the nearer
loudspeaker is louder and arrives at
the listener’s ears slightly earlier.
Both of these cues favor localiza-
tion at the nearer loudspeaker, and
the soundstage is skewed accord-
ingly.
With the S2600 and S3100 sys-
tems, an off-axis listener will be
located along a zone of higher sen-
sitivity for the loudspeaker farthest
away from him. Therefore, the level
differences due to unequal path
lengths will be compensated.
located along a zone of higher sen-
sitivity for the loudspeaker farthest
away from him. Therefore, the level
differences due to unequal path
lengths will be compensated.
Changing the toe-in angle of the
loudspeakers will enable the user to
fine tune the systems for nearly any
listening environment.
loudspeakers will enable the user to
fine tune the systems for nearly any
listening environment.
The imaging performance of
these systems is made possible
through the use of a new high fre-
quency horn that has skewed cov-
erage, rather than the normal sym-
metrical coverage characteristic of
most horns. Figure 4 shows the
polar diagrams of the left horn on
octave centers from 1kHz to 8kHz.
The response of the horn in the
right loudspeaker would be the mir-
ror image of the curves shown here.
through the use of a new high fre-
quency horn that has skewed cov-
erage, rather than the normal sym-
metrical coverage characteristic of
most horns. Figure 4 shows the
polar diagrams of the left horn on
octave centers from 1kHz to 8kHz.
The response of the horn in the
right loudspeaker would be the mir-
ror image of the curves shown here.
HF In
LF In
+
+
_
_
a. Normal wiring
HF In
LF In
+
+
_
_
b. Bi-wiring
Figure 3. Principle of Bi-wiring.
0 dB
-5
-10
0 dB
-5
-10
0 dB
-5
-10
0 dB
-5
-10
1 kHz
2 kHz
4 kHz
8 kHz
Figure 4. Horizontal polar response for
the left channel loudspeaker.
10°
20°
30°
40°
50°
0°
10°
20°
30°
40°
50°
0°
10°
20°
30°
40°
50°
0°
10°
20°
30°
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0°
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