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CROSSOVER SUGGESTIONS
After the speaker system has been placed, the
crossover point needs to be set for maximum bene-
fit. While the 15" drivers in the 215s/215sc are fully
capable of accurately reproducing frequencies
above 350 Hz, the bandpass enclosure has been
designed to acoustically roll off frequencies above
170 Hz. This decreases distortion levels and boosts
frequencies below 170 Hz. Thus, the crossover
point should be set lower than 130 Hz to ensure that
all frequencies are reproduced. Setting the
crossover point too low (below 80 Hz) will not take
full advantage of the subwoofer because it places
too high of a demand on the mid/high packs. For
these reasons, a crossover point of ranging between
80 and 130 Hz is recommended depending upon
the placement of the speakers.
The output level of the subwoofer(s) should be
matched by ear to the output level of the full range
cabinets by adjusting the level control at the
crossover (if it has one) or at the power amplifiers.
Normally, the output of the full range cabinets is
subjectively higher than that of the subwoofers so a
balance can be achieved by turning down the
mid/high frequency signal at or before the power
amplifiers.
FIGURE 1
POWERED MIXER
MAIN
MAIN
MON.
OUT
AMP IN
AMP IN
INPUT
PCN-2
ELECTRONIC
CROSSOVER
MAIN
MONITOR
OUT
OUT
HIGH
LOW
OUT
OUT
5
FULL
2912c
RANGE
INPUT
MOUNTING
POLE
215sc
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