Peavey CS 1200H Operating Manual
CS®1200H Operations Manual
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power amplifier
2
Intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s
enclosure 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.
CCAAUUTTIIOONN::
Risk of electrical shock — DO NOT OPEN!
CCAAUUTTIIOONN::
To reduce the risk of electric shock, do not remove cover. No user serviceable parts inside.
Refer servicing to qualified service personnel.
WWAARRNNIINNGG::
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.
Este símbolo tiene el propósito, de alertar al usuario de la presencia de “(voltaje) peligroso” sin
aislamiento dentro de la caja del producto y que puede tener una magnitud suficiente como para
constituir riesgo de descarga eléctrica.
Este símbolo tiene el propósito de alertar al usario de la presencia de instruccones importantes sobre la
operación y mantenimiento en la información que viene con el producto.
PPRREECCAAUUCCIIOONN::
Riesgo de descarga eléctrica ¡NO ABRIR!
PPRREECCAAUUCCIIOONN::
Para disminuír el riesgo de descarga eléctrica, no abra la cubierta. No hay piezas útiles
dentro. Deje todo mantenimiento en manos del personal técnico cualificado.
AADDVVEERRTTEENNCCIIAA::
Para evitar descargas eléctricas o peligro de incendio, no deje expuesto a la lluvia o
humedad este aparato Antes de usar este aparato, Iea más advertencias en la guía de operación.
Ce symbole est utilisé dans ce manuel pour indiquer à l’utilisateur la présence d’une tension dangereuse
pouvant être d’amplitude suffisante pour constituer un risque de choc électrique.
Ce symbole est utilisé dans ce manuel pour indiquer à l’utilisateur qu’il ou qu’elle trouvera d’importantes
instructions concernant l’utilisation et l’entretien de l’appareil dans le paragraphe signalé.
AATTTTEENNTTIIOONN::
Risques de choc électrique — NE PAS OUVRIR!
AATTTTEENNTTIIOONN::
Afin de réduire le risque de choc électrique, ne pas enlever le couvercle. Il ne se trouve à
l’intérieur aucune pièce pouvant être reparée par l’utilisateur. Confiez I’entretien et la réparation de
l’appareil à un réparateur Peavey agréé.
AAVVEERRTTIISSSSEEMMEENNTT
: Afin de prévenir les risques de décharge électrique ou de feu, n’exposez pas cet
appareil à la pluie ou à l’humidité. Avant d’utiliser cet appareil, lisez attentivement les avertissements
supplémentaires de ce manuel.
Dieses Symbol soll den Anwender vor unisolierten gefährlichen Spannungen innerhalb des Gehäuses
warnen, die von Ausreichender Stärke sind, um einen elektrischen Schlag verursachen zu können.
Dieses Symbol soll den Benutzer auf wichtige Instruktionen in der Bedienungsanleitung aufmerksam
machen, die Handhabung und Wartung des Produkts betreffen.
VVOORRSSIICCHHTT::
Risiko — Elektrischer Schlag! Nicht öffnen!
VVOORRSSIICCHHTT::
Um das Risiko eines elektrischen Schlages zu vermeiden, nicht die Abdeckung enfernen. Es
befinden sich keine Teile darin, die vom Anwender repariert werden könnten. Reparaturen nur von
qualifiziertem Fachpersonal durchführen lassen.
AACCHHTTUUNNGG::
Um einen elektrischen Schlag oder Feuergefahr zu vermeiden, sollte dieses Gerät nicht dem
Regen oder Feuchtigkeit ausgesetzt werden. Vor Inbetriebnahme unbedingt die Bedienungsanleitung lesen.
3
IIMMPPOORRTTAANNTT SSAAFFEETTYY IINNSSTTRRUUCCTTIIOONNSS
WWAARRNNIINNGG::
When using electrical products, basic cautions should always be followed, including the following:
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with a dry cloth.
7. Do not block any of the ventilation openings. Install in accordance with manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus (including amplifiers)
that produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one
wider than the other. A grounding type plug has two blades and a third grounding plug. The wide blade or third prong is
provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the
obsolete outlet.
10. Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point
they exit from the apparatus.
11. Note for UK only: If the colors of the wires in the mains lead of this unit do not correspond with the terminals in your
plug‚ proceed as follows:
a) The wire that is colored green and yellow must be connected to the terminal that is marked by the letter E‚ the earth
symbol‚ colored green or colored green and yellow.
b) The wire that is colored blue must be connected to the terminal that is marked with the letter N or the color black.
c) The wire that is colored brown must be connected to the terminal that is marked with the letter L or the color red.
12. Only use attachments/accessories provided by the manufacturer.
13. Use only with a cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a
cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.
14. Unplug this apparatus during lightning storms or when unused for long periods of time.
15. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any
way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus,
the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
16. Never break off the ground pin. Write for our free booklet “Shock Hazard and Grounding.” Connect only to a power
supply of the type marked on the unit adjacent to the power supply cord.
17. If this product is to be mounted in an equipment rack, rear support should be provided.
18. Exposure to extremely high noise levels may cause a permanent hearing loss. Individuals vary considerably in susceptibility to noise-induced hearing loss, but nearly everyone will lose some hearing if exposed to sufficiently intense noise
for a sufficient time. The U.S. Government’s Occupational Safety and Health Administration (OSHA) has specified the
following permissible noise level exposures:
Duration Per Day In Hours Sound Level dBA, Slow Response
890
692
495
397
2100
1 1⁄
2
102
1105
1
⁄
2
110
1
⁄4or less 115
According to OSHA, any exposure in excess of the above permissible limits could result in some hearing loss. Ear plugs or protectors to the
ear canals or over the ears must be worn when operating this amplification system in order to prevent a permanent hearing loss, if exposure
is in excess of the limits as set forth above. To ensure against potentially dangerous exposure to high sound pressure levels, it is
recommended that all persons exposed to equipment capable of producing high sound pressure levels such as this amplification system be
protected by hearing protectors while this unit is in operation.
SSAAVVEE TTHHEESSEE IINNSSTTRRUUCCTTIIOONNSS!!
4
CCSS®®11220000HH PPoowweerr AAmmpplliiffiieerr
Congratulations on your purchase of the CS 1200H power amplifier from Peavey—designed for years
of reliable, flawless operation under rigorous use. This amplifier offers the sonic superiority and
unsurpassed reliability for which Peavey is famous, while remaining surprisingly compact. Advanced
technology and extensive protection circuitry allow operation with greater efficiency into difficult
loads and power conditions. The
DDDDTT
™
(Distortion Detection) circuit ensures trouble-free operation
into loads as low as 2 Ohms. The Distortion Detection circuits protect drivers and ensure that sonic
integrity is maintained, even in extreme overload conditions. Peavey’s hi-efficiency design uses
patented Turbo-V cooling and variable speed DC fan. This cooling topology maintains a lower overall
operating temperature, resulting in longer output transistor life.
Although the Peavey CS 1200H amplifier is quite simple to operate and is housed in ultra-strong steel
chassis, improper use can be dangerous. This amplifier is very high-powered and can put out high
voltages and sizable currents at frequencies up to 30 kHz. Always use safe operating techniques
when operating this amplifier.
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PPOOWWEERR CCOONNNNEECCTTIIOONN SSEECCTTIIOONNSS..
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·· ppaatteenntteedd TTuurrbboo--VV ccoooolleedd hheeaatt ssiinnkkss wwiitthh vvaarriiaabbllee ssppeeeedd DDCC ffaann
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™™
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·· ffiivvee ffrroonntt ppaanneell LLEEDD iinnddiiccaattoorrss ppeerr cchhaannnneell:: AACCTTIIVVEE,, DDDDTT
™™
,, SSIIGGNNAALL‚‚ TTEEMMPP aanndd DDCC
UUnnppaacckkiinngg
Upon unpacking, inspect the amplifier. If you find any damage, notify your supplier immediately. Only
the consignee may institute a claim with the carrier for damage incurred during shipping. 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 offices, service centers, or the supplier, use only the original factory packing. If
the shipping carton is unavailable, contact Peavey to obtain a replacement.
MMoouunnttiinngg
The CS 1200H amplifier will mount in standard 19-inch racks. Rear mounting ears are also provided for
additional support, which is recommended in non-permanent installations like mobile or touring
sound systems. Because of the cables and connectors on the rear panel, a right angle or offset
screwdriver or hex key will make it easier to fasten the rear mounting ears to the rails.
CCoooolliinngg RReeqquuiirreemmeennttss
The CS 1200H amplifier uses a forced-air cooling system to maintain a low, even operating
temperature. Air is drawn into the amplifier by fans on the front panel, courses through the cooling
fins of the tunnel-configured channel heat sinks, and then exhausts through the rear panel slots. If
either heat sink gets too hot, its sensing circuit will open the output relay, disconnecting the load
from that particular channel. It is important to have an exhaust outlet at the back of the amplifier and
enough space around the sides of the amplifier to allow the cooling air to escape. If the amp is rack
mounted, do not use doors or covers on the front of the rack; the intake air must flow without
resistance. If you are using racks with closed backs, make sure that there is one (1) standard rack
space opening for every three mounted power amplifiers.
EENNGGLLIISSHH
FFeeaattuurreess
DDeessccrriippttiioonn
5
OOppeerraattiinngg PPrreeccaauuttiioonnss
Make sure the mains voltage is correct and is the same as that printed on the rear of the amplifier.
Damage caused by connecting the amplifier to improper AC voltage is not covered by any warranty. See
the Connecting Power section for more information on voltage requirements.
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Although the CS 1200H amplifier has
RRaammppUUpp
™
circuitry, which raises the signal level gradually after the
output relay closes, it is always a good idea to have the gain controls turned down during power-up to
prevent speaker damage if there is a high signal level at the inputs. Whether you buy or make them, use
good-quality connections, input cables and speaker cables, along with good soldering technique, to
ensure trouble-free operation. Most intermittent problems are caused by faulty cables.
Consult the Wire Gauge Chart (below) to determine proper gauges for different load impedances and
cable lengths. Remember that cable resistance robs amplifier power in two ways: power lost directly to
resistance (I2R loss), and by lowering the total load impedance. Also make sure the mode switch is
correctly set for the desired application. See Sections on
SStteerreeoo
and
BBrriiddggeedd MMoonnoo
operation for more
information.
WIRE GAUGE CHART
Cable Length
(In Feet)
Stranded Wire Gauge
(AWG)
Power Loss into
8 Ohms (%)
Power Loss into
4 Ohms (%)
Power Loss into
2 Ohms (%)
5 18 .79 1.58 3.16
16 .50 1.00 2.00
14 .31 .62 1.24
12 .20 .40 .80
10 .125 .25 .50
10 18 1.58 3.16 6.32
16 1.00 2.00 4.00
14 .62 1.25 2.50
12 .40 .80 1.60
10 .25 .50 1.00
40 18 8.00 12.60 25.20
. 16 4.00 8.00 1.60
14 2.50 5.00 10.00
12 1.60 3.20 6.40
10 1.00 2.00 4.00
8 .625 1.25 2.50
80 16 8.00 16.00 32.00
14 5.00 10.00 20.00
12 3.20 6.40 12.80
10 2.00 4.00 8.00
6
CCoonnnneeccttiinngg IInnppuuttss
Input connections are made via the 3-pin XLR (pin 2+) or 6.3 mm plug “Combi” connectors on the
rear panel of the amplifier. The inputs are actively balanced. Pinout and polarity of connection
cables should be configured correctly (refer to the rear panel of the unit). The input overload
point is high enough to accept the maximum output level of virtually any signal source.
CCoonnnneeccttiinngg OOuuttppuuttss
All models have two output (speaker) connections per channel. Cables can be connected with
banana plugs, spade lugs, or bare wire to the 5-way binding posts. The preferred connection
method is via the Speakon connectors. Pin connections are noted on the rear panel of the unit.
CCoonnnneeccttiinngg PPoowweerr
The CS 1200H power requirements are rated at 1/8 power (typical music conditions). The
maximum power current draw rating is limited only by the front panel circuit breaker. Consult the
specifications in this manual for figures on the current that this amplifier will demand. Make sure
the mains voltage is correct and is the same as that printed on the rear of the amplifier. Damage
caused by connecting the amplifier to improper AC voltage is not covered by any warranty. Unless
otherwise specified when ordered, Peavey amplifiers shipped to customers are configured as
follows:
North America: 120 VAC/60 Hz
Europe, Asia, Australia: 230/240 VAC/50 Hz
South America: 120 VAC/60 Hz or 240 VAC/50 Hz
SStteerreeoo
For stereo (dual channel) operation, turn the amplifier off and set the mode select switch to the
stereo position. In this mode, both channels operate independently of each other, with their
input attenuators controlling their respective levels. Thus, a signal at Channel A’s input produces
an amplified signal at Channel A’s output, while a signal at Channel B’s input produces an
amplified signal at Channel B’s output.
BBrriiddggeedd MMoonnoo
Both amplifier channels can be bridged together to make a very powerful single-channel
monaural amplifier. Use extreme caution when operating in the bridged mode; high voltage may
be present at the output terminals. To bridge the amplifier, set the rear panel mode select switch
to the bridge position. Apply the signal to Channel A’s input (all Channel B’s input functions are
defeated) and connect the speakers across the hot outputs (the “+” binding posts of Channels A
and B) or between the 1+ and 2+ pins of the Channel A Speakon®connector. The input level
control for channel A will be the master control for input level, the level control for the B channel
is inoperative. The active LED for the B channel will not light, which makes it easy to identify
when the amp is in Bridge mode.
Unlike stereo mode, in which one side of each output is at ground, in the bridged mode both
sides are hot. If an output patch panel is used, all connections must be isolated from each other
and from the panel. The recommended minimum nominal load impedance in the bridged mode is
4 Ohms (equivalent to driving both channels at 2 Ohms). Driving bridged loads of less than 4
Ohms can activate the Load Fault Correction (LFC) circuitry resulting in a limiting of power, and
may also cause a thermal overload.
OOppeerraattiioonn MMooddeess
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