Peavey PV 118 D Mode D'emploi page 24

O p e r a T i n g i n s T r u c T i O n s
CAUTIONS
The unit must be disconnected from the AC power source before any work is performed on it. Refer all servicing to
qualified service personnel. The heat sink on the back plate can become hot to the touch. Do not block or cover the
heat sink from ventilation.
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DO NOT connect the primary line-level input (#5) of the PV 118D to the output of a power amplifier. The inputs are
meant to be driven from a line-level strength signal.
DO NOT remove the protective metal grille.
The PV 118D is very efficient and powerful! This sound system can permanently damage hearing!
WARNING: Use extreme care setting the overall maximum loudness!
Connecting AC Power To The PV 118D
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The PV 118D 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 PV 118D. Do not connect any other device to the same extension cord that
the PV 118D is connected to.
Special Note for Permanent Installation
When installing the PV 118D, 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 Mid/High Satellite Speakers with the PV 118D
You can use the PV118D with a pole stand to mount Mid/High satellite speakers up above the PV118D, the accessory
pole it is designed to use is Peavey part #00326530. The pole is 51-3/4" long, and has a nominal diameter of 1-3/8".
Connecting a Signal to the PV 118D
There are a variety of ways to input a signal to the PV 118D. The primary input (5) provides a balanced line-level input,
allowing the use of a male XLR plug. There is also a speaker level level unbalanced 1/4" phone jack 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 andperformance. Sometimes, with difficult interference problems, it will be
helpful to lift the shield ground on a balanced cable at the PV 118D 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 PV 118D, 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
PV®118D and also to tape the cables down or run them under a cable guard to avoid anyone tripping over them or pulling
them out of the input jacks.
Volume Control Adjustment
The PV 118D 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 PV 118D from a mixer, it may be advantageous to reduce the input sensitivity by turning the volume control
to the halfway point. The PV 118D will now more closely match a typical power amp.
If the mixer board indicates clipping of its output signals, then all of the PV 118D power capability is not being utilized
cleanly. Clipping the signal before it gets to the PV 118D is not optimal. Reduce the mixer output level and turn up the
volume control on the PV 118D.
The amplifiers in the PV 118D 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 PV 118D) needs to be reduced. When first turning on the sound system, switch
on all upstream electronics first, then the PV 118D with its volume control fully counterclockwise (all the way down).
Begin checking levels with the mixer output level controls all the way down, and bring them up slowly with the PV 118D
volume control set to the desired setting (halfway up recommended to start).