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Peavey PR 15 D Operating Manual page 8

Powered bi-amplified two-way speaker system
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Connecting AC Power To The PR
The PR 15D comes with an 8-foot IEC connection AC power cord. If you are using an extension cord or power
strip with this powered speaker, make sure it is of good quality and of a sufficient current capacity to maintain
safety and maximize the power output capability of the PR 15D. Do not connect any other device to the same
extension cord that the PR 15D is connected to.
Special Note for Permanent Installation
When installing the PR 15D, AC power runs will be used and a certified electrician should be consulted to
be sure that all AC wiring complies with local codes and regulations. It is also advisable to use a cable clip
properly affixed to the cabinet to strain relief the IEC power cord connected to the amplifier module at (2)
so the power cord cannot be pulled out or vibrate loose.
use of PR 15D with a Subwoofer
The built-in pole adapter allows use with the Peavey SP Subcompact 18X and the accessory pole that it is
designed to use, Peavey part #00326540.
The pole used is 36-3/16" long and has a nominal diameter of 1-3/8".
Connecting a Signal to the PR 15D
There are a variety of ways to input a signal to the PR 15D.
The primary input (5) provides either a balanced mic- or line-level input, allowing the use of a 1/4" phone
plug, either a standard single-ended (tip-sleeve) plug or a balanced TRS (ring-tip-sleeve) type plug OR a
male XLR plug. Then there are two line-level unbalanced 1/4" phone jacks that can be mixed in with the
primary input.
Do not connect cables to the jacks while the unit is ON and the Volume is turned up!
While a standard single-ended 1/4" phone plug-equipped cable will work well and the balanced input
circuitry of the primary input (5) will provide some interference rejection, a balanced cable using either
the balanced TRS 1/4" phone plug or the XLR plug will provide superior interference rejection and
performance. Sometimes, with difficult interference problems, it will be helpful to lift the shield ground
on a balanced cable at the PR 15D end only by using the ground lift switch (4). Check any input changes
carefully, always turning the volume control down before plugging and unplugging cables.
Use of high quality, premium cables is recommended for the PR 15D, as these usually have better
shielding and materials and will provide greater long-term reliability. It is usually a good idea to leave
some slack at the input to the PR 15D and also to tape the cables down or run them under a cable guard to
avoid anyone tripping over them or pulling the PR 15D over when stand mounted.
Volume Control Adjustment
The PR 15D is equipped with a volume control to facilitate use in many different applications. With the
volume control adjusted fully clockwise, gain is at maximum and the input sensitivity is 0.375 V RMS
for full-rated output. When driving the PR 15D from a mixer, it may be advantageous to reduce the input
sensitivity by turning the volume control to the halfway point. The PR 15D will now more closely match a
typical power amp.
If the mixing board indicates clipping of its output signals, then all of the PR 15P power capability is not
being utilized cleanly. Clipping the signal before it gets to the PR 15D is not optimal. Reduce the mixer
output level and turn up the volume control on the PR 15D.
The amplifiers in the PR 15D are equipped with DDT ™ and an LED indicator to show that DDT ™ has
engaged. If the sound seems heavily compressed, check this indicator; if it is blinking RED more than
occasionally, then the drive level from the mixer (or the volume control on the PR 15D) needs to be reduced.
When first turning on the sound system, switch on all upstream electronics first, then the PR
15P with
its volume control fully counterclockwise (all the way down). Begin checking levels with the mixer output



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