Peavey PV 1, PV 2, PV 3 Operating Manual
PV® Series Ampliers
Operating
Manual
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www.peavey.com
ENGLISH
PV® SERIES PROFESSIONAL STEREO POWER AMPLIFIER
INTRODUCTION
Congratulations! You have just purchased one of the world’s finest professional power amplifiers. The PV amplifier
features a two-way crossover and sub-sonic (low-cut) filter for each channel. Crossover frequencies are fixed at 150 Hz,
allowing subwoofers to be driven at extremely high sound pressure levels, and the filters cut at 40 Hz to prevent low-end
rumble. Using proven technology gained through years of amplifier design, this unit takes advantage of rugged TO-3P
output devices mounted on massive aluminum extrusions and dissipates heat via an extremely quiet and effective
two-speed fan. PV amplifiers are designed to operate at line voltages as low as 50% of nominal, employing mammoth
toroidal power transformers and offering impressive specifications and features not found on similarly priced competitive
units. This amp is designed to drive a 2-Ohm load per channel, thus achieving awesome performance levels into 4
Ohms in BRIDGE mode. PV amplifiers are ruggedly constructed, rack-mountable pieces of gear with superb patching
capability, allowing superior flexibility in application. Front panel features include calibrated, detented gain (dB) controls
and LED indicators for power (PWR), signal presence (SIG), Thermal Protection indicator, and DDT™ activation on each
channel, as well as a rocker mains POWER switch. The back panel contains an IEC connector, line voltage selector
switch, dual primary fuses, and the critical cooling fan opening. This opening should have an adequate supply of cool air
and should never be blocked or restricted. Also on the back panel are the input and output sections, including an input
barrier strip for permanent installations. Each channel input section includes a combo XLR / TRS phone jack connector,
THRU/LOW out and HIGH out TRS jacks, and activation switches for the LOW CUT filter and crossover (150 Hz
XOVER). Channel output sections feature dual shock-proof binding posts and four-conductor twist lock connectors. An
additional four-conductor twist lock connector allows BRIDGE mode output.
UNPACKING
Inspect the amplifier during unpacking. If any damage is found, notify your dealer immediately. Be sure to save the
carton and all packing materials. Should you ever need to ship the unit back to Peavey Electronics, one of its service
centers, or the dealer; use only the original factory packing.
INSTALLATION
PV professional power amplifiers are designed for durability in commercial installations and provide the quality
performance required in studio and home applications. They are two-rack-space units of 16" (406 mm) depth designed
to mount in a standard 19" rack. Rear mounting ears are provided for additional support. The minimum rack depth
required from the mounting surface is 17" (432 mm) to allow adequate connector clearance.
BASIC SETUP
Before mounting, make sure the line voltage selector is set to the correct voltage (page 9).
Rack mount the amplifier in the location where it is to be used, remembering to allow for adequate access and cooling
space. Make all the connections to the desired INPUT connectors on the desired channel. Select the proper mode
configuration (STEREO or BRIDGE). Connect speakers to the desired OUTPUT connectors.
Make sure the load impedance is greater than 2 ohms per channel (4 ohms bridged) to prevent the amplifier from
shutting down. With the POWER switch OFF, connect the IEC cord (7) to the amplifier and then to an outlet of the
proper voltage. With both channel gain controls turned fully counterclockwise, turn the Power switch on, and raise the
gain controls to achieve the desired sound level. Please carefully review this manual to learn about all the features and
designed-in behaviors of your new PV® Series power amplifier!
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Front Panel
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INPUT GAIN (dB)
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These controls are used to adjust the input gain of each channel. They determine how “loud” each channel of the power amplifier
will sound for a given input signal level. Maximum input gain is achieved at the fully clockwise setting (+32 dB, 40 X), and this
setting yields maximum mixer/system headroom. A setting of less than fully clockwise will yield lower system noise at the
expense of mixer/system headroom. Turning the control fully counterclockwise is the “off” setting (-∞). It is always a good idea to
power up any new installation at this setting to protect the system loudspeakers.
2
POWER LEDS (PWR)
These indicators illuminate when the AC mains power is being supplied to the amp and both channels are operational. If either
channel experiences fault conditions, exceeds safe operating temperature limits, or if the mains circuit breaker trips; both channel
power LEDs will be dark, indicating “shutdown”. If the BRIDGE mode is selected, the PWR indicator on channel B will remain
dark as a positive indication of this mode selection.
3
SIGNAL ACTIVITY LEDS (SIG)
These indicators illuminate when the associated channel output signal level exceeds 1 V RMS.
4
DDT™ ACTIVE LEDS
These indicators illuminate when DDT compression is taking place in the associated channel. If the rear panel DDT switch is
depressed, then DDT is defeated and these LEDs indicate clipping is occurring in the corresponding channel. The Peavey DDT
compression system will be covered in greater detail later in this manual.
5
Thermal Protect LED
This indicator illuminates when the thermal sensor on either heatsink reaches approximately 90 degrees C, at which point, the
amplifiers are muted while the fan remains on high speed. If this happens repeatedly, either reduce the load on the amplifier
(detach one of the speakers), or supply additional cooling to the amplifier, such as a fan. When rack mounting, it is helpful to
leave 1 RU open above and below the amplifier to prevent heat buildup from adjacent units.
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POWER SWITCH
This heavy-duty, rocker-type switch turns on the mains power to the amplifier. When the mains power is applied, there is a delay
in activation of the unit. This reduces/eliminates the turn-on transients associated with the system equipment connected to the
amplifier and protects loudspeakers.
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DUAL PRIMARY FUSE
In order to accommodate line voltage switching, the power transformer is designed with two primaries that can be placed in
series or parallel by means of the line voltage selector switch. Each primary is individually fused, so there is no need to change
fuse values when a different line voltage is selected. It is important to use the fuse values specified on the rear panel. The fuses
are provided to limit current to the associated transformer primary winding, and protect it from overheating and possible
destruction due to fault conditions in the unit. The trip current values have been carefully chosen to allow reasonable continuous
power output performance, while still protecting the power transformer. These fuses should not open unless there is a fault in the
amplifier circuitry that causes excessive mains current draw. However, abnormal conditions such as a short circuit on either or
both channels, or continuous operation at overload or clipping (especially into 2-ohm loads per channel or 4-ohm bridge load)
can cause the fuses to open. If this occurs, UNPLUG from the AC POWER source before replacing the fuses, after waiting a brief
period of time to allow the unit to cool down. Efforts should be made to correct the cause of the overload, first by disconnecting
one output at a time, and then one speaker at a time until the bad cable or damaged speaker is isolated. If the fuses open
instantly each time you attempt to turn the unit on, it should be taken to a qualified Peavey Service Center for repair.
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