Peavey CS 1000X User Manual
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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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ADVERTENCIA:
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aucune piece pouvant
AVERTISSEMENT: Afin de prevenir
ou a
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y mantenimiento en la literatura que viene con el producto.
abra.
abra
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tecnicos calificados.
Para
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Avant d’utiliser cet appareil, lisez
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reparee par
&tre d’intensite
I’utilisateur.
les
suffisante pour constituer un risque de choc electrique.
qu’elle
trouvera d’importantes instructions sur
I’appareil
risques de
dans la litterature accompagnant le produit.
Confier l’entretien a un personnel qualifie.
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let
avertissements supplementaires situ& dans le guide.
operation
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I’interieur
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Get-at
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For optimum performance and reliability DO NOT PRESENT THE AMPLIFIER WITH A SPEAKER LOAD OF LESS THAN 2 OHMS, OR A
COMBINATION OF SPEAKERS THAT TOGETHER ARE LESS THAN 2 OHMS!
Using one speaker, it must be rated at 2 ohms minimum.
Using two speakers, they must be rated each at 4 ohms minimum.
Using three speakers, they must be rated each at 8 ohms minimum.
WARNING!
The world-famous
CS@
1000X. This upgraded model provides impressive
C!F
1000 power amplifier has been changed to the new, extended-performance
2-ohm
output power capability while still maintaining the current 4- and &ohm ratings, and meets rigid industry standards for power bandwidth, slew rate, and
distortion specifications.
The new extended specs are:
525 W RMS into 4 ohms / 750 W RMS into 2 ohms (per channel)
1050 W RMS into 8 ohms / 1500 W RMS into 4 ohms (bridged)
DDTTM
compression with LED indicators and defeat switch
Slew Rate: 40 V/microsecond, stereo mode, each channel
Power Bandwidth: 10 Hz to 50 kHz @ 4 ohms, rated power
Total Harmonic Distortion: less than
0.03%,
rated power
Hum and Noise: 100 dB below rated power, unweighted
All the current features of the previous units have been retained, including Peavey’s patented
DDTTM
compression system and the very flexible back-panel patching capabilities. The two-speed fan cooling system
has been improved to automatically provide additional cooling for the two-ohm load conditions.
FEATURES
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Automatic two-speed fan cooling system/tunnel
Independent channel thermal/fault protection
Transient-free turn-on/off operation (relay)
Two “back-porch” crossover “island” sockets for plug-in modules
Two “back-porch” balanced-input transformer sockets for PL-2’s
Single XLR and dual phone plug inputs each channel
XLR input can be transformer-balanced
Dual phone plug and 5-way binding post outputs each channel
High temperature shutdown LED each channel
DDTTM
activation LED each channel
Ten-segment, tri-colored power level LED array each channel
Calibrated/detented input attenuator control each channel
Rear panel
DDT
TM
defeat and bridge mode select slide switches
DDTTM
The
ACTIVE
DDTTM
active
LEDs
LEDs
(1)
indicate when compression is taking place. As long as gain reduction is occurring,
the LED will continue to light, thereby giving a valuable indication of this unique compression function.
The DDT function can be defeated on both channels simultaneously by selecting the defeat position on the
DDT compression switch (7) located on the back panel of the CS 1000X. When the compressor is defeated,
the DDT active LED will indicate clipping, this being the condition where the amp is failing to faithfully
reproduce the input signal. A more thorough discussion of the DDT function is included later in this manual.
HIGH TEMPERATURE
LEDs
(2)
These LEDs illuminate whenever the thermal logic system has determined that a particular channel is
operating above safe temperature limits and has shut down the unsafe channel. When this LED is illuminated, the
CS 1000X if either or both channels are continuously operated into less than
“0”
LED will also go out on that channel. Excessive temperature conditions can occur in the
2-ohm
loads (or a short circuit), or if the ambient temperature of the air supply becomes too hot to provide adequate cooling even
under normal
2-ohm
or greater loading situations. Since the CS 1000X is a “redundant” amplifier, the
shutdown of one channel will not affect the operation of the other channel. When the unsafe channel has
cooled down to safe limits, operation will be restored in that channel. Normal operation is indicated when
the high temperature LED is off and the
“0”
LED is on. Continued operation under fault conditions will not
harm the amplifier, but because of the nuisance factor, steps should be taken to determine the problem and
solve it.
LED ARRAYS (3)
The CS 1000X has a tri-colored LED array on each channel to indicate the output power level. The LED
array is calibrated in two different ways to offer maximum flexibility and ease of use. In the center of the
LED ladder, the calibration is percent of full power output. The top LED, labeled
lOO%,
will flash when the
CS 1000X has reached full RMS power output capability on that particular channel. Operation at power
output levels below 100% will naturally be indicated by lower LED readings. The lowest value indicated is
0.4% of full power, which corresponds to 2.0 watts RMS output into 4 ohms. Operation below that power
level will not be indicated, since the lowest LED is calibrated at 0% or standby. As mentioned, this LED
should be illuminated whenever the amplifier is operating with AC mains power applied under zero signal
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conditions. Next to each ladder the calibration is
indicates the amount of power amp headroom left for any signal condition.
INPUT SENSITIVITY CONTROLS (4)
The CS
show the actual input sensitivity ratings of the amplifier for various settings in decibel volts necessary to
attain the full-output power rating. Thus, maximum input gain (minimum 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. A more thorough
discussion of input sensitivity follows later in this manual.
MAINS POWER SWITCH (5)
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The front panel of the CS 1000X contains a conventional on/off rocker switch. When the amplifier is
plugged into a suitable power source, activating this switch should light both channel
the power-up delay sequence is completed (approximately two seconds). You should also be able to hear
the output relays close (click). If the amplifier is cool, the fan should start on low-speed operation. If only
one channel
indicator lights, check the rear panel circuit breaker and the mains power source. It’s always a good idea to
check to see that the cooling fan is operational, especially on a new unit. The possibility exists that due to
shipping and handling, the fan bearings may be too tight to allow low-speed fan operation. If this is the case,
immediately seek professional help. The CS 1000X must have normal fan operation to provide adequate
cooling for the unit. Without air flow, the amplifier will “thermal” very quickly under any signal conditions.
1000X
“0”
features a 31 detent, calibrated sensitivity control for each channel. Each control is labeled to
indicator lights, then the possibility exists of an internal “fault.” If neither channel
“dB
below full power.” This is a convenient scale that
“0”
array
LEDs
“0”
after
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GRILLE (6)
The back panel includes the fan opening with protective grille
amplifier. This opening should never be blocked or restricted.
DDT SWITCH (7)
This switch is used to either ENABLE or DEFEAT the DDT compressor. Defeating the DDT compressor
should not be performed lightly or simply as a matter of course. Most loudspeaker systems simply cannot
handle the square wave power of the CS
speakers to be damaged.
1000X,
and defeating this valuable limit can eventually cause the
(6)
where cooling air is drawn into the
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MAINS POWER SOURCE (120V products only) (8)
The CS
plug with a ground pin. It should be connected to an independent mains circuit capable of delivering at least
15 AMPS continuously. This is particularly critical for sustained high-power applications. If the socket does
not have a ground pin, a suitable ground lift adaptor should be used, and the third wire grounded properly.
1000X
is fitted with a single heavy-duty
#14
AWG 3 conductor line cord and a conventional AC
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Never break off the ground pin on the CS 1000X or any amplifier. The use of extension cords should be
avoided, but if essential, always use a three-wire type with at least a
wire will severely limit the power capability of this amplifier. Always use a qualified electrician to install
any necessary electrical equipment. To prevent the risk of shock or fire hazard, always be sure that the
amplifier is properly grounded.
CIRCUIT BREAKER (9)
The new CS 1000X now features a circuit breaker in place of the mains fuse. This breaker is provided to
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limit the mains current to the associated power transformer, thereby protecting it from overheating and
possible destruction due to any fault conditions in the amplifier. The trip current value has been carefully
chosen to allow continuous power output performance, while still providing adequate protection for the
power transformer itself. Normally the breaker should not trip; however, abnormal conditions such as a
short circuit on either or both channels, or continuous operation at overload or clipping, especially into a
2-ohm
the overload. When tripped, the button on the breaker will be extended outward nearly l/2” and can be reset
by pushing inward. A normal reset button length is about l/4”.
simply pushing the button back in will reset it, after waiting a brief period of time to allow it to cool down.
If the breaker trips instantly each time you attempt to reset it, then the unit should be taken to a qualified
service center for repair.
The back panel of the CS 1000X features a unique “back-porch” design containing the various input and
output connectors for each channel. A patch panel is also included, providing a very flexible system for use
with balanced-input transformers and dual crossover networks. These features are unduplicated in any other
stereo power amplifier on the market today.
load, will cause the breaker to trip. If this occurs, simply reset the breaker and correct the cause of
#14
AWG wire size. The use of lighter
If this “thermal”-type breaker does trip,
MODE SWITCH (10)
The mode switch is located on the “back-porch” next to the channel input jacks. This switch converts the
CS 1000X from normal stereo mode to bridge mode. Bridge-mode operation is very popular for commercial
sound distribution systems
WARNING: In bridge mode, the CS 1000X is capable of delivering 1000 W RMS into 8 ohms and
1500 W RMS into 4 ohms. Always be very certain that the associated loudspeaker system can handle this
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power level reliably. Also, be advised that in most crossover applications, accidental switching to the
bridge mode could destroy the speaker system. Specific applications of the bridge mode will be covered
later in this manual.
(70/100
volt lines).
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