Peavey PVs 12 Sub Operating Manual page 13

CAUTION! SETTING THE CROSSOVER FREQUENCY CONTROL TOO LOW MAY ALLOW THE SAT-
ELLITE SPEAKER TO BE OVERLOADED BY DEEP BASS AT HIGH SPL !
Setting the control lower DOES NOT increase the deep bass output of the PVs 12 Sub, a middle range (9:30 to
2:30 clock face position) setting works best for most speakers.
If the powered full-range speakers are not set on top of the PVs12 Sub on the pole, then the polarity switch set-
tings may need to be different than what is provided here. The Crossover Frequency Control may need to be set
to a slightly lower point in order for the Subwoofer and the satellites to sum well through the crossover region.
The settings outlined above will work the best when the satellite speaker and the Subwoofer are closer together,
and essentially the same distance from the audience.
Setting the PVs12 Sub Controls for Use with Other Satellite Speakers
Crossover Frequency Control (11): In general, for smaller full-range speakers to be used as satellites, set the
Crossover Frequency Control (11) to a higher frequency setting. For larger full-range speakers, set the Crossover
Frequency Control (11) to a lower frequency setting. Setting the Crossover Frequency Control very much below
the 10 o' c lock position for smaller satellite speakers will not be needed most of the time, as a crossover frequency
below 110 Hz is not going to allow thePVs15 Sub and the smaller satellite speaker to add together very well in
the crossover region.
Polarity Switch (12): Try changing the Polarity Switch setting back and forth at each selected crossover frequen-
cy, so as to determine which switch position provides the most bass output in the crossover region. When listen-
ing, either have someone else toggle the Polarity switch, and listen back where the audience will be, or toggle the
polarity and then go listen in the audience area. Listening while standing behind the Sub will not allow you to
hear the correct summation of the Sub and the top speaker.
Level Controls (7): Start with the PVs 12 Sub Level control in the straight up position, and adjust the satellite
speaker system to match it's level. Note that if the Subwoofer can be heard as a distinctly separate sound source,
then it is probably set too high in level.
Disconnecting AC Power to the PVs 12 Sub
We recommend that the Power switch (4) be used to turn the unit off first, and then the AC power cord can be
removed, this minimizes stress to the power amplifiers and the transducers from turn-off transients. The pow-
er switch has an arc suppression capacitor to help during turn-off, and tends to make a clean disconnect from
the AC power, while the power cord IEC connector can make intermittent contact before finally becoming fully
disconnected, e.g., as when wiggling the cord.