Peavey DPC 1400X Bedienungsanleitung

OWNER’SMANUAL

DPC®1400X

2 x 700 Watt Professional Stereo Power Amplifier

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.

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.

Este símbolo tiene el propósito, de alertar al usuario de la presencia de “(voltaje) peligroso” que no tiene

aislamiento dentro de la caja del producto que puede tener una magnitud suficiente como para constituir

riesgo de corrientazo.

Este símbolo tiene el propósito de alertar al usario de la presencia de instruccones importantes sobre la

operación y mantenimiento en la literatura que viene con el producto.

PRECAUCION: Riesgo de corrientazo — No abra.

PRECAUCION: Para disminuír el riesgo de corrientazo, no abra la cubierta. No hay piezas adentro que el usario

pueda reparar. Deje todo mantenimiento a los técnicos calificados.

ADVERTENCIA: Para evitar corrientazos 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 pur indiquer à l’utilisateur la présence à l’intérieur de ce produit de tension non-

isolée dangereuse pouvant être d’intensité suffisante pour constituer un risque de choc électrique.

Ce symbole est utilisé pour indiquer à l’utilisateur qu’il ou qu’elle trouvera d’importantes instructions sur

l’utilisation et l’entretien (service) de l’appareil dans la littérature accompagnant le produit.

ATTENTION: Risques de choc électrique — NE PAS OUVRIR!

ATTENTION: 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. Confier I’entretien à un personnel qualifié.

AVERTISSEMENT: 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 les avertissements supplémentaires situés dans le guide.

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.

VORSICHT: Risiko — Elektrischer Schlag! Nicht öffnen!

VORSICHT: 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.

ACHTUNG: Um einen elektrischen Schlag oder Feuergefahr zu vermeiden, sollte dieses Gerät nicht dem Regen

oder Feuchtigkeit ausgesetzt werden. Vor Inbetriebnahme unbedingt die Bedienungsanleitung lesen.

DPC® 1400X

Thank you for purchasing the DPC®1400X! The DPC®1400X represents years of digital power

amplifier research packed into a one rack space power-house. Delivering 1,400 watts into

4 ohms bridged, or 2 x 700 watts into 2 ohms in stereo, the DPC 1400X reaches new output

heights.

With all connections on the back panel and all the controls on the front panel, the DPC 1400X

is certain to make life a lot easier for the installers and in live performance applications. You’ll

also find Peavey’s patented DDT™compression circuitry and combo connector inputs two really

convenient and useful extras.

Please read all of this before using the DPC 1400X as it contains important precautions and safety

information.

FRONT PANEL FEATURES

STATUS LEDs (1)

Bi-colored LED used to indicate the status of the channel. Channels A and B have separate Status

LEDs to monitor channel conditions. If both LEDs are not lit at power-up, follow the procedure to

check if the fuse needs replacing. If only one channel’s Status LED is lit check to see it the amp

is in bridge mode (4). If the LED is green, this indicates a normal operation. If the LED is red, then

the amplifier is overheated and will shut down for approximately 5 minutes or until cool enough to

operate safely. If the LED pulsates red, this indicates that there is a problem with the amplifier and it

should be serviced by a qualified technician.

INPUT SENSITIVITY (2)

These controls are used to adjust the input gain of each channel. Maximum gain is achieved with

the control turned fully clockwise. In this position the user will achieve maximum system headroom.

If set lower than full clockwise, lower system noise will occur at the expense of headroom.

SIGNAL LED (3)

Bi-colored LED used to indicate the signal status of a channel. If the LED is not lit, this indicates

no signal at the input. This could be caused by bad cables or the Input Sensitivity (2) being set to

zero. If this LED is green, then a signal is present at the input. If the LED is red, this indicates that

DDT compression is occurring. When DDT compression is disabled a red LED indicates signal clip-

ping.

ENGLISH

1 2 3 12 3 4 5 6 7

MODE SWITCH (4)

This switch is used to change operational modes of the amplifier. When the switch is pressed in,

the unit is placed in bridge mode (bridge mode is explained later in this manual) and uses only the

Channel A input. When the switch is out, the amplifier operates in stereo mode utilizing both inputs.

Accidental selection of bridge mode from stereo mode while the unit is in operation could cause

severe damage to loudspeakers, particularly biamped systems.

DDT SWITCH (5)

This switch is used to enable or defeat the internal DDT™compression circuitry. 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 fuse to blow as a matter

of course. (DDT is covered in greater detail later in this manual.)

POWER SWITCH (6)

This switch is used to apply power to the unit, thus turning the unit on. Use the status indicators (1)

to verify the actual power condition of the amp.

COOLING VENTS (7)

These vents provide a path for airflow. Since the DPC 1400X is a fan cooled device, it is very

important not to cover these vents or obstruct the flow of air in any way.

BACK PANEL FEATURES

CHANNEL INPUT (8)

This input features a combo connector that will accept a standard three-pin male XLR, 1/4" TRS

(Tip-Ring-Sleeve), or 1/4" mono plug. An electronically balanced input is available via XLR and

1/4" TRS use. The unit is internally wired for the following:

Input XLR TRS

(+) Pin 2 Tip

(-) Pin 3 Ring

GND Pin 1 Sleeve

Unbalanced input is achieved by use of a 1/4" mono plug (patch cable). It is best to keep the

cable from the output device to the input of the DPC 1400X as short as possible during unbalanced

operation.

INPUT THRU (9)

This TRS 1/4" jack is used to daisy chain the inputs of the DPC 1400X to the inputs of other power

amps or devices. Once again, short patch cables are highly recommended to minimize hum.

BINDING POST SPEAKER OUTPUTS (10)

Because of their high current handling capabilities, the binding post is recommended over the

standard 1/4" connector. For this reason, one set of binding posts is provided for each channel of the the

10 10 7 12 13 8 9 9811 11

DPC 1400X. The binding posts of each channel are wired in parallel with that channel’s 1/4"

outputs. This allows for parallel speaker systems. The minimum impedance in stereo mode is 2

ohms. Use of the amplifier below the minimum 2 ohm rating could result in overheating and thermal

shutdown. In bridge mode connect the banana plug of your speaker cable to the red binding posts

of channels A and B. The red binding post of channel A is the positive output terminal and the

minimum load impedance is increased to 4 ohms while in bridge mode. (Bridge mode is explained

in more detail later in this manual.)

PARALLEL 1/4" SPEAKER OUTPUTS (11)

Two parallel 1/4" speaker output jacks are provided for each channel of the DPC 1400X.

When adding speakers in parallel always keep in mind your total speaker impedance,

insuring that it does not drop below the minimum load impedance rating of the DPC 1400X.

FUSE (12)

The fuse is located in the cap of the fuse holder. If the fuse should fail, IT MUST BE

REPLACED WITH THE SAME TYPE AND VALUE IN ORDER TO AVOID DAMAGE TO TO

EQUIPMENT AND TO PREVENT VOIDING THE WARRANTY. If the amp repeatedly blows

fuses, it should be taken to a qualified service center for repair.

WARNING: THE FUSE SHOULD ONLY BE REPLACED WHEN THE POWER CORD HAS

BEEN DISCONNECTED FROM ITS POWER SOURCE.

AC LINE CORD SOCKET (13)

Provided to accept the removable (IEC) type AC line cord. Connect only to proper source (see back

panel markings.)

INSTALLATION AND CONNECTION

The DPC professional series of power amplifiers is designed for durability in commercial installations

and has the quality of performance required in studio. These units are a standard rack-mount config-

uration height, and each is cooled by a variable-speed internal fan. All input and output connections

are on the back panel. Additionally, the level controls and selector switches are on the front panel.

The front panel also contains LED indicators for power and DDT activation, and the mains power

switch.

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. If

cool, 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 increase the fan speed. Depending upon signal

conditions and amp loading, the fan speed may increase to a maximum value, or it may decrease to

a minimum value. 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 status LEDs on the front panel illuminating red.

Depending upon the available cooling air, operation should be restored relatively quickly, and the

status LEDs will be illuminated green. 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 FACILITY 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 studio requirements will never cause high speed fan operation.

However, if they do, this may indicate that you have not taken the necessary steps to provide

adequate cooling. Remember, closed up in a cabinet, a DPC 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 blowing of the fuse. Also, most home

wiring and electrical circuits are only 15 amps.

BRIDGE MODE

The bridge mode on stereo amplifiers is often misunderstood as to the actual operation and usage.

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 DPC 1400X is rated at 700 watts

RMS per channel into 2 ohms. The bridge ratings are 1,400 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 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!

DDT™

Peavey’s patented DDT (Distortion Detection Technique) compression circuit enables the user 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 very 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

DPC Series power amplifiers use a fuse 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 fuse to blow, but with the DDT

activated, this problem is minimized. For this reason, you should always have the DDT compression

system enabled.

Output Power: (typical value, 120 V AC, 60 Hz):

Stereo mode, both channels driven

2 ohms, 1,000 W power channel peak music power

4 ohms, 700 W power channel peak music power

8 ohms, 500 W power channel peak music power

Bridge mode

4 ohms, 2,000 W power peak music power

8 ohms, 1,400 W power peak music power

Rated Output Power (120 V AC, 60 Hz):

Stereo mode, both channels driven

2 ohms, 1 kHz, 700 W RMS per channel

4 ohms, 1 kHz, 525 W RMS per channel

8 ohms, 1 kHz, 325 W RMS per channel

Bridge mode

4 ohms, 1 kHz, 1,400 W RMS

8 ohms, 1 kHz, 1,000 W RMS

Power Bandwidth:

Stereo mode, both channels driven

4 ohms, 10 Hz to 20 kHz

Total Harmonic Distortion:

Stereo mode, both channels driven

1 kHz, 4 ohms rated output, less than 0.1%

Hum and Noise:

Stereo mode, both channels driven

Below rated output power 4 ohms, greater than

95 dB (A-weighted)

Damping Factor:

Stereo mode, both channels driven

4 ohms, 100 Hz, greater than 500

Input Sensitivity:

Input attenuator set @ FCW @ rated output power,

4 ohms, 1.4 V RMS (+3 dBV)

Input Impedance:

10k ohms unbalanced

Channel Voltage Gain:

Input attenuator set @ FCW

Stereo mode, 4 ohms, 1 kHz, 30 dB

Bridge mode, 8 ohms, 1 kHz, 39 dB

Frequency Response:

Stereo mode, both channels driven

+0.5, -3 dB, 1 W RMS, 4 ohms, 3 Hz to 25 kHz

The frequency response is internally controlled to

optimize phase linearity and improve transient

response.

Slew Rate:

The slew rate is internally controlled by a Bessel

filter to optimize phase linearity and improve

transient response. Because of this circuitry,

the amplifier cannot slew rate limit.

Power Consumption:

Stereo mode, both channels driven @ rated output

power, 4 ohms 10 A @ 120 V AC

Cooling System:

Continuously variable speed DC blower

DDT™Compression System:

Automatic, switchable with LED indicator

Dimensions and Height:

• Height 1.75" (4.4 cm)

• Width 19" (48.3 cm)

• Depth 16.5" (41.9 cm)

• Weight 15 lbs. (6.8 kg)

Specifications subject to change without notice.

DPC®1400X SPECIFICATIONS

SP™112M

Monitor Output

Main

Output

Impulse™ 200

Main Input Monitor Input

EQ™215FX

SRC™4034

Main

Monitor

DPC® 1400X Hookup Diagram

Out In

DPC® 1400X

Nous vous félicitons pour l’achat de ce DPC® 1400X! Le DPC®1400X renferme des années de

recherche dans le domaine les amplificateurs numériques dans une unité rack. Avec ses 1400 Watt

sous 4 Ohm en mode bridge ou 2 x 700 Watt sous 2 Ohm en stéréo, le DPC 1400X atteind de nou-

veaux sommets de puissance.

Toutes les connections sont situées à l’arrière et tous les contrôles sont en façade, de manière à

simplifier au maximum son installation et son utilisation en situation Live. Le DPC 1400X est en plus

équipé de la compression DDT™brevetée par Peavey et d’entrées de type combo.

Lisez attentivement ce manuel afin d’utiliser correctement votre DPC 1400X correctement et de

respectez les mesures de sécurité nécessaires.

Veuillez-vous référer au <front panel> art situé dans la

section en langue anglaise de ce manuel.

FACE AVANT

LEDS DE STATUT (1)

LEDs bicolores indiquant le statut du canal. Les canaux A et B possèdent chacun leur LED de

statut. Si les deux LEDs restent éteintes à la mise sous tension, suivez la procédure de remplace-

ment des fusibles. Si seule une est allumée, vérifiez que l’amplificateur est en mode bridge (4). Une

LED verte indique une opération normale. Une LED rouge indique que l’amplificateur a surchauffé et

qu’il ne pourra être mis en route avant 5 minutes ou avant qu’il n’atteigne une température suffisa-

ment basse. Une LED clignotant en rouge signal qu’il y a un problème avec l’amplificateur et qu’il

doit être réparé par un technicien qualifié.

SENSIBILITES D’ENTREES (2)

Ces boutons de réglage permettent d’ajuster le gain d’entrée pour chaque canal, c’est-à-dire de

déterminer le volume sonore délivré par l’amplificateur de puissance pour un signal d’entrée donné.

Le gain d’entrée maximum (niveau de sensibilité minimale) est obtenu lorsque le bouton est tourné

à fond dans le sens horaire; cette position assure une dynamique maximale au système. Un réglage

inférieur permettra une réduction du niveau de bruit mais aura pour conséquence une réduction de

la dynamique du système.

LEDS SIGNAL (3)

LED bicolore indiquant le statut du canal. Si elle reste éteinte, aucun signal n’est présent en entrée.

Cela peut provenir de connexions défectueuses ou d’un réglage à zéro de la sensibilité d’entrée (4).

Si la LED est de couleur verte, un signal est présent en entrée. Le voyant s’illumine en rouge

lorsque la compression DDT entre en fonction sur le canal. Lorsque le commutateur (5) désactive la

compression DDT, la couleur rouge indique l’écrêtage du signal.

SELECTEUR DE MODE (4)

Ce commutateur permet de sélectionner le mode de fonctionnement stéréo ou bridge. En mode nor-

mal, l’amplificateur travaille en stéréo et les deux canaux d’entrée sont utilisés. Lorsqu’il est engagé,

l’amplificateur est en mode bridge et n’utilise que le canal d’entrée A. Il convient de faire preuve de

FRANÇAIS

prudence lorsque ce dernier est sélectionné: si le mode Bridge est choisi par accident, cela risque

d’endommager les haut-parleurs, particulièrement si vous travaillez en biamplification. Ce mode sera

présenté plus en détail dans la suite de ce manuel.

COMMUTATEUR DDT (5)

Ce commutateur permet d’activer (Enable) et de désactiver (Defeat) la compression DDT™. En

fonctionnement normal, la compression DDT™ doit être activée afin de minimiser les risques d’écrê-

tage ou de surcharge d’un ou des deux canaux. Si le système DDT est désactivé, une surcharge

importante sera susceptible de faire sauter le fusible d’alimentation de l’appareil (Le système de

compression DDT Peavey sera présenté plus en détail dans la suite du manuel).

COMMUTATEUR D’ALIMENTATION (6)

Commutateur de type bascule mettant l'amplificateur sous tension. Consultez les LEDs de statut

pour vérifier l’état de fonctionnement de l’amplificateur.

AERATIONS (7)

Assurent une circulation d’air dans l’appareil. Le DPC 1400X est refroidi par ventilateur; il est donc

important de n’obstruer en aucune manière ces aérations.

PANNEAU ARRIERE

ENTREES DES CANAUX (8)

Ces entrées possèdent des connecteurs de type combo acceptant des fiches XLR standard et des

jacks stéréos (type TRS) et monos. Une entrée symétrique (par électronique) est disponible via l’util-

isation des fiches XLR ou jacks TRS. L’unité est câblée comme suit:

Entrée XLR TRS

(+) Pin 2 Tip(extrémité)

(-) Pin 3 Ring(anneau)

Masse Pin 1 Sleeve(corps)

Utilisée avec un jack mono, l’entrée est asymétrique. Il est préférable d’utiliser un câble le plus court

possible lors de l’utilisation en asymétrique des entrées du DPC 1400X.

PRISE THRU (9)

Cette prise jack est utilisée pour relier les entrées du DPC 1400X aux entrées d’autres amplis de

puissance ou d’autres processeurs. Encore une fois, l’utilisation de câbles aussi courts que possible

est recommendée pour minimiser les risques de souffle et de bruits de fond.

SORTIES SPEAKON (10)

Les modèles exportés possèdent des prises speakon 4 broches. La prise speakon est con-

nectée comme suit: la broche 1+ est la sortie positive et la broche 1- est la sortie négative.

D’autre possibilités de configurations sont possibles via des modifications internes de l’unité.

Pour ce type de modification, consultez votre Centre de Service Peavey.

10 10 711 12 8 9 98

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