Peavey PV 2000 User Manual
Intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure
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CAUTION: Risk of electrical shock - DO NOT OPEN!
CAUTION: To reduce the risk of electric shock, do not remove cover. No user serviceable parts inside. Refer servicing to
qualified service personnel.
WARNING: To prevent electrical shock or fire hazard, do not expose this appliance to rain or moisture. Before using this
appliance, read the operating guide for further warnings.
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PRECAUCION: Riesgo de corrientazo - No
PRECAUCION:
reparar. Deje todo mantenimiento a
that may be of sufficient magnitude to constitute a risk of electric shock to persons.
Intended to alert the user of the presence of important operating and maintenance (servicing) instructions in the
literature accompanying the product.
Este simbolo tiene el proposito de alertar al usuario de la presencia de “(voltaje) peligroso” que no tiene
aislamiento dentro de la caja
corrientazo.
Este simbolo tiene el propdsito de alertar al usario de la presencia de instruccones importantes sobre la operation
y mantenimiento en la literatura que viene con el producto.
Para
disminuir el riesgo de corrientazo, no
de1
product0 que puede tener una magnitud suficiente coma
abra.
abra
10s
tecnicos calificados.
la cubierta. No hay piezas adentro que el usario pueda
para
constituir riesgo de
ADVERTENCIA:
Antes de usar este aparato, lea
Ce symbole est utilise pur indiquer a I’utilisateur la presence a
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ATTENTION: Risques de
ATTENTION: Afin de reduire le risque de choc
aucune piece pouvant
AVERTISSEMENT: Afin de prevenir les risques de decharge
ou a
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VORSICHT: Risiko - Elektrischer Schlag! Nicht offnen!
VORSICHT:
keine Teile darin, die vom Anwender repariert werden konnten. Reparaturen nur von qualifiziertem Fachpersonal
durchftihren
ACHTUNG:
Feuchtigkeit ausgesetzt werden. Vor Inbetriebnahme unbedingt die Bedienungsanleitung lesen.
dangereuse pouvant
Ce symbole est utilise pour indiquer a l’utilisateur qu’il ou qu’elle trouvera d’importantes instructions sur
l’utilisation
l’humidite.
Dieses Symbol
von Ausreichender
Dieses Symbol
Handhabung und Wartung des Produkts betreffen.
lassen.
Para
evitar corrientazos o peligro de incendio, no deje expuesto a la lluvia o humedad este aparato
mas
advertencias en la guia de operacibn.
l’interieur
&tre d’intensite
et I’entretien (service) de
choc
Clectrique - NE PAS OUVRIR!
etre reparee
Avant d’utiliser cet appareil, lisez les avertissements supplementaires situ& dans le guide.
so11
sol1
Urn
das Risiko eines elektrischen Schlages zu vermeiden, nicht die Abdeckung enfernen. Es befinden
Urn
einen elektrischen Schlag oder Feuergefahr zu vermeiden, sollte dieses Gerat nicht dem Regen oder
par
den Anwender vor unisolierten gefahrlichen Spannungen innerhalb des Gehauses warnen, die
Starke
sind,
den Benutzer auf wichtige Instruktionen in der Bedienungsanleitung aufmerksam machen, die
suffisante pour constituer un risque de choc electrique.
l’appareil
l’utilisateur.
urn
einen elektrischen Schlag verursachen zu
dans la litterature accompagnant le produit.
Blectrique,
Confier l’entretien a un personnel qualifie.
ne pas enlever le couvercle. 11 ne se trouve a
tlectrique
ou de feu, n’exposez pas cet
de ce produit de tension non-isolee
I’interieur
appareil a
kbnnen.
la pluie
sich
2
Congratulations! You have just purchased the world’s finest, low-cost power amplifier, the Pv’” 2000.
The amplifier features include a
2-way
crossover and sub-sonic filter for each channel. The crossover
frequency is fixed at 150 Hz, which allows subwoofers to be driven to extremely high sound pressure
levels. The sub-sonic filter is fixed at 40 Hz to prevent unwanted low end rumble. This amplifier uses
proven technology gained from years of amplifier design, taking advantage of the rugged steel can
TO-3 output devices for reliability. Unlike typical home stereo units, the PV 2000 employs massive
power transformers, very effective two-speed fan cooling, and offers impressive specifications and
features not found on any other competitive unit in this price range. This amplifier was designed to
drive 2 ohm loads per channel, thus delivering awesome performance levels at 4 ohm Bridge mode.
The PV 2000 offers rugged rack-mountable construction and more than adequate patching capability.
The front panel contains a rocker mains switch, an LED power indicator, and dual LED
indicators. The back panel of each amplifier has an input level control, dual
5-way
binding post outputs, and dual
l/4”
phone jack outputs for each channel. There is a
l/4”
phone jack inputs,
DDT’”
l/4”
activation
phone
jack output for each channel’s high-frequency crossover. The resetable mains breaker is also located
on the back. Additionally, the back contains switches for Stereo/Bridge select and DDT defeat, subsonic filter and active crossover switches.
FRONT PANEL FEATURES
DDT’” ACTIVE
LEDS
(1)
Illuminates when DDT compression is taking place in the channel. With the Enable/Defeat switch on
the back panel in the Defeat position, this LED indicates when channel clipping is occurring.
POWER LED (2)
Illuminates when AC mains power is being supplied to the amp and both channels are operational. If
either channel were to experience fault conditions, exceed the safe operating temperature limits, or
have the associated circuit breaker trip, then the power LED will go out, indicating such conditions
exist.
CIRCUIT BREAKERS
There are two circuit breakers (one for each channel) on the
(3)
PV’”
2000 have only one. These breakers
are provided to limit the current to the associated power transformer and protect it from overheating
and possible destruction due to fault conditions in the amplifier. The trip current values have been
3
carefully chosen to allow continuous power output performance while still protecting the power transformer. Normally, these breakers should not trip unless there is a fault in the amplifier circuitry that
draws excessive mains current. 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) will cause the
breaker to trip. If this occurs, turn the power switch off, then simply reset the breaker and correct the
cause of the overload.
A
Back Panel
When tripped, the button on the breaker will be outward nearly
by pushing inward. A normal reset button length is about
breaker does trip, simply pushing the button back in will reset it, after waiting a brief
period of time to allow it to cool down.
OFF BEFORE RESETTING THE BREAKER.
you attempt to reset it, the unit should be taken to a qualified service center for repair.
REMEMBER, ALWAYS
If the breaker trips instantly each time
l/2”
and can be reset
l/4”.
If this “thermal” type
TURN
THE POWER
BACK
PANEL FEATURES
POWER SWITCH
A heavy-duty, rocker-type switch. Selecting the “0” position turns off the power amplifier.
DDT SWITCH
This switch is used to either Enable or Defeat the DDT compressor. Normally the DDT function should
be enabled to minimize the possibility of either or both channels going into clipping or overload. With
DDT defeated, a severe overload could cause the mains circuit breakers to trip as a matter of course.
(The Peavey DDT compression system will be covered in greater detail later in this manual.)
MODE SWITCH (6)
This switch is used to select either Stereo or Bridge mode of operation. Care should be exercised
whenever the Bridge mode is selected. Accidental selection of this mode could damage loudspeakers,
particularly in biamped systems. (The Bridge mode
manual.)
INPUT
These controls are used to adjust the input gain of each channel. Thus, they determine how “loud” each
channel of the power amplifier will
sensitivity rating) is achieved at the full clockwise setting, and this setting yields maximum mixer/system
headroom. A setting of less than full clockwise will yield lower system noise at the expense of mixer/
system headroom.
GAIN (7)
(5)
(4)
will
be covered in greater detail later in this
“play”
for a given input signal level. Maximum input gain (minimum
4
HIGH-Z INPUT
Two parallel
conventional input and, simultaneously, the other to be used as a “line out” (Y-cord) to connect to
another input jack on this amplifier or other amps or equipment. These
grounded and will provide a unique ground loop elimination circuitry associated with each input. This
feature will normally allow “hum-free” operation when relatively short
between the jacks on this amp and other jacks on various other equipment that share the same rack
with this amp. The inputs are true electronically balanced to further eliminate any hum. A
jack can be used at the input with the tip being the positive phase, the ring being the negative phase
and the sleeve connected to ground. A mono
JACKS
i/4”
stereo input jacks are provided for each channel. This allows one to be used as a
(8)
l/4”
jacks are not chassis
i/4”
cable patches are made
l/4”
stereo
l/4”
jack can also be used creating an unbalanced input.
HIGH OUT
These output jacks are provided for crossover capability. With the crossover switch depressed, the
frequency signal is automatically routed to Channel A. The high-frequency signal has to be patched to
the input of Channel 6 from this jack. If both channels are being used for the lows, (either Bridge mode
or Stereo) then the HI OUT jacks can be connected to another amplifier to provide the highs in a
system.
SPEAKER
A
AC
LINE
A
The use of extension cords should be avoided but, if necessary, always use a three-wire type with at
least a #I 4 AWG wire size. The use of lighter wire will severely limit the power capability of this power
amplifier. Always use a qualified electrician to install any new electrical equipment. To prevent the risk
of shock or fire hazard, always be sure that the amplifier is properly grounded.
CROSSOVER JACKS (9)
OUTPUTS (10)
Two
l/4”
jacks and
channel. Again, for each channel, these outputs are in parallel; hence, the speaker
connection cables can be terminated with
wires for use in the binding post terminals. For sustained high power applications, the
use of the binding post terminals is recommended. However, care must be exercised to
assure correct speaker phasing.
CORD-120
All the PV Series power amplifiers are fitted with a single, heavy-duty
cord and a conventional AC plug with a ground pin. It should be connected to an inde-
V products only
pendent circuit capable of supporting at least 15 amps or greater continuously. This is
particularly critical for sustained high power applications. If the socket used does not
have a ground pin, a suitable ground lift adaptor should be used and the third wire
grounded properly. Never break off the ground
provided for your safety.
5way
binding post speaker output terminals are provided for each
l/4”
phone plugs, banana plugs, or stripped
(11)
3-conductor
pin on
any
equipment. It is
low-
2-way
line
CROSSOVER
This switch is used to select the crossover capability of this amplifier. With this button depressed, the
low
frequecies
the HI OUT jack, which can be connected to either the other channel’s input or another amplifier. The
crossover frequency is fixed at 150 Hz.
SUB-SONIC
Depressing this switch to the
channel. This will cut ultra-low frequencies, protecting speakers from the possibility of over-excursion.
The low-frequency roll-off is 18 dB per octave.
INSTALLATION
The PV professional series of power amplifiers is designed for durability in commercial installations and
has the quality of
rack-mount configuration height, and each is cooled by an automatic two-speed internal fan. All input
and output connections are on the back panel. Additionally, the level controls, selector switches and the
resetable circuit breakers are on the back panel. The front panel contains LED indicators for power and
DDT activation and the main power switch.
SWITCH (12)
are automatically sent to the corresponding channel. The high frequencies are sent to
FILTER (13)
‘<in”
position provides a 40 Hz high-pass filter for the corresponding
AND
CONNECTION
perfomance
required in studio and home applications. These units are a standard
5
INDUSTRIAL AND COMMERCIAL INSTALLATIONS
For commercial and other installations where sustained high power operation is required, the amplifiers
should be mounted in a standard
19”
rack. It is not necessary to leave a rack space between each
amplifier in the stack since each fan pulls air in from the rear and exhausts the hot air out the front.
However, an adequate ‘COOL” air supply must be provided for the amplifier when rack-mounted. The
internal fan must have a source of air that is not preheated by other equipment. The amplifier will start
up in “low speed” fan operation and will normally stay at low speed operation unless sustained high
power operating levels occur. Then, as the amplifier “heat sinks” heat up, the automatic thermal sensing
circuitry will cause high speed operation to occur. Depending upon signal conditions and amp loading,
high speed fan operation may continue or it may cycle continuously between high and low. This
situation is quite normal. If cooling is inadequate due to preheated air, or a reduction of air flow occurs
due to blockage of the amplifier inlet/outlet ports, or if the amplifier is severely overloaded or short
circuited, the amplifier thermal sensing system may cause temporary shutdown of the unit. This is
indicated by the power LED on the front panel ceasing to illuminate. Depending upon the available
cooling air, operation should be restored relatively quickly, and the power LED will be illuminated. In
any event, corrective action should be taken to determine the cause of the thermal shutdown. If the
amplifier is not severely overloaded or shorted and air flow is normal in and out of the amplifier, then
steps should be taken to provide a cooler environment for all the amplifiers. As a general rule, the
cooler electronic equipment is operated, the longer its useful service life.
STUDIO AND
HOME INSTALLATION
In most low to medium power applications, the power amplifier can be mounted in any configuration. It
is desirable that, if at all possible, the power amplifier be located at the top of an equipment stack. This
will prevent possible overheating of sensitive equipment by the hot air rising from the power amplifier.
As a general rule, most home and studio requirements will never cause high speed fan operation.
However, if it does, this may indicate that you have not taken the necessary steps to provide adequate
cooling. Remember, closed up in a cabinet, a PV Series power amplifier will have severe cooling
problems, even at low power levels. Again, inadvertent short circuit or sustained overload usage could
also cause temporary thermal shutdown and/or tripping of the mains power breaker. Also, most home
wiring and electrical circuits are only 15 amps. One PV 2000 can cause a 15 AMP breaker to trip if a
severe overload occurs.
BRIDGE MODE
The actual operation and usage of the Bridge mode on stereo amplifiers is often misunderstood. In
basic terms, when a two-channel amplifier is operated in the Bridge mode, it is converted into a single
channel unit with a Power Rating equal to the sum of both channels’ power ratings at a Load Rating of
twice that of the single channel rating. For example, the PV 2000 is rated at 1000 watts RMS per
channel into 2 ohms. The Bridge Ratings are 2000 watts RMS into 4 ohms (minimum load). Bridge
mode operation is accomplished by placing the mode switch in the “BRIDGE” position, connecting the
positive speaker lead to Channel A red binding post, negative speaker lead to Channel B red binding
post, and using Channel A as the input channel. All Channel B input functions are defeated, and they
serve no purpose now. Another application for Bridge mode operation is to drive sound distribution
systems in very large public address applications. In this mode, any of the PV Series power amplifiers
can actually drive 70 volt systems directly without using matching transformers. The real advantage of
such an approach is primarily cost. 70 volt distribution systems are very common in domestic
applications where large numbers of relatively small loudspeakers are used for background music and
paging. Such systems require the use of 70 volt transformers at each loudspeaker. Another common
use for the Bridge mode is in subwoofer applications where very high power levels are required to
reproduce extreme low frequencies. Such enclosures usually contain 2 or 4 loudspeakers to handle the
power levels involved. For Bridge mode usage, the enclosure impedance must be 4 or 8 ohms-never
below 4 ohms!
6
DDT
Peavey’s patented DDT (Distortion Detection Technique) compression circuit enables the sound
technician to maximize the performance of the amplifier/speaker combination by preventing the power
amp from running out of headroom (clipping). This compression system is activated by a unique circuit
that senses signal conditions which might overload the amplifier and activates compression (reduces
the amp gain) when clipping is imminent. Threshold of compression, then, is clipping itself, and no
specific threshold control is used. This technique effectively utilizes every precious watt available for the
power amplifier to reproduce the signal while at the same time minimizing clipping and distortion and
thus significantly reducing the potential of loudspeaker degradation and damage. The DDT system is
an automatic hands-off approach to the problem of power amplifier clipping. Since the PV Series power
amplifiers use circuit breakers for “over current” protection, the DDT compression system plays even a
more important role in continuous performance by preventing each channel from clipping and overload.
Continuous operation at clipping can cause the circuit breakers to trip, but with the DDT activated, this
problem is minimized. For this reason, you should always have the DDT compression system
enabled.
SPECIFICATIONS
Output
Bridge mode, mono
Rated Output
Slew
Total Harmonic
Input Sensitivity 81 Impedance?
Dimensions &Weight:
Frequency
Damping
Hum &
Power Consumption?
Cooling System:
DDT Compression System:
Power2J:
2 ohms, 1
4 ohms, 1
8 ohms, 1
4 ohms, 1
8 ohms, 1
4 ohms, 20 Hz to 20
8 ohms, 20 Hz to 20
Stereo mode, each channel
Bridge mode, mono
20 Hz to 20
@
rated output power, 8 ohms
Height
Width
Depth
Weight
fl dB,
f0.2
8 ohms, 1
Below rated output power, 8 ohms
@
rated output power, 8 ohms
kHz,
1% THD
kHz,
1% THD
kHz,
1% THD
kHz,
1% THD
kHz,
1% THD
Power?
Rate?
Distortion*,%
kHz, @
Response213:
1 W RMS, 8 ohms
dB, @
rated output, 8 ohms
Factor2z3:
kHz
Noise?
kHz,
1% THD
kHz,
0.1% THD
rated output power, 8 ohms
PV-2000
1000 W RMS per channel
700 W RMS per channel
400 W RMS per channel
2000 W RMS
1400 W RMS
625 W RMS per channel
370 W RMS per channel
20 Volts per
40 Volts per ySec
Less than 0.07%
1 .O V RMS (0
20 K ohms (34 dB gain)
7” (17.8 cm)
19”
(48.3 cm)
15”
(38.2 cm)
55 Ibs. (25.0 kg)
lOHzto40kHz
20 Hz to 20
Greater than 300
100
dB,
12.7 A @ 120 VAC
2-speed
Switchable with LED
PSec
dBV)
kHz
unweighted
fan
1 @
120 VAC, 60 Hz
2
Stereo mode, both channels driven3 Typical Value
A
8
4
Input attenuator set FCW
-
DDT Compression
should be enabled
for speaker protection
Left Output
from Mixer
Right Output
from Mixer
_
Mode Switch
must be in
Stereo Position
System Load
4 OHM Minimum Speakers
BRIDGE MODE
DDT Compression
should be enabled
for speaker protection
Output from
Mixer
Optional Filter:
Depress to
eliminate Low
-
Frequency rumble
Channel B is
disabled - do not use
Mode Switch:
Must be depressed
to Bridge Position
WARNING!
For optimum performance and rehabdlty DO NOT PRESENT
THE AMPLIFIER WITH A SPEAKER LOAD OF LESS THAN
2 OHMS, ORACOMBINATION OF SPEAKERS THAT
TOGETHER ARE LESS THAN 2 OHMS!
Using
Using
Usmg three speakers, they mu\t be rated each at 8 ohms
mmirnum.
A
one
speaker, II must be rated at 2 ohms minimum.
tmw
speaker\, they must be rated each at 4 ohm\ mmimum.
9
Pour assurer la Fiabilte et obtenit
A
soumeoe,ama,s
mfeneure a 2 ohms, ni
AVEC un H.P., II Faul unr charge
AVEC
minmum
AVEC
minimum de 8 ohm\.
I’amphficateur
dew H.P., il Faut
de 4 ohms
trms H.P., II Faut
avec un
H P. ni en combmalwn de\
pour
chaoun une
pour
chaoun une
AVIS!
une
performance optlmale,
a
une
charge &mpedance
d’unpedance
charge
charge
ne
to~alr
H.P.
minimum de 2 ohms.
d’impedance
d’unpedance
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