Peavey 2000, 1400 owner manual Protection Features

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Protection Features

The Peavey CS Series incorporates several circuits to protect the amplifier and speakers under virtually any situation. Peavey has made the amplifiers as foolproof as possible by making them immune to short and open circuits, mismatched loads, DC voltage and overheating. If a channel goes into the DDTgain reduction mode, the DDT LED illuminates. The clipping percentage or output power is instantly reduced. When a problem occurs that causes a channel to go into a protection mode, the PWR (Power) LED for that channel will turn off. DC voltage on the output or excessive subsonic frequencies will cause the triac crowbar circuit to activate to protect the speakers. If the amplifier overheats, the signal will be removed from the channel that is at fault until the amplifier cools down, thus protecting the amplifier.

Distortion Detection Technique (DDT) Limiting

Any time a channel is driven into hard, continuous clipping, the DDT circuit will automatically reduce the channel gain to a level just slightly into clipping, guarding the speakers against the damaging, high-power, continuous square waves that may be produced. Situations that may activate the DDT circuit include uncontrolled feedback, oscillations, an improper equipment setting or malfunction upstream from the amplifier. Normal program transients will not trigger DDT; only steady, excessive clipping will cause the DDT LED to illuminate.

LFC Impedance Sensing

CS Series amplifiers feature innovative circuitry for safe operation into any load. When an amplifier senses a load that overstresses the output stage, the Load Fault Correction circuit adjusts the channel gain to a safe level. Extreme load fault under high power levels will cause the signal to be muted for the associated channel. This method of output- stage protection is far more effective than the standard limiting found on conventional power amplifiers. The LFC circuit is sonically transparent in normal use and unobtrusive when activated.

Thermal Protection

The internal fans will keep the amplifier operating well within its intended temperature range under all normal conditions. If a channel’s heat sink temperature reaches 85° C (which may indicate an obstructed air supply), that channel will independently protect itself by muting its input signal and shut down until it has cooled. During this time, the PWR LED will go out and the cooling fans will continue operating at high speed.

Short Circuit

If an output is shorted, the LFC and thermal circuits will automatically protect the amplifier. The LFC circuit senses the short circuit as an extremely stressful load condition and attenuates the signal, protecting the channel’s output transistors from over-current stress. If the short circuit remains, the channel will eventually thermally protect itself by muting the input signal.

DC Voltage Protection

If an amplifier channel detects DC voltage or subsonic frequencies at its output terminals, the output triac crowbar circuitry will activate immediately to prevent speaker damage.

Turn-On/Turn-Off Protection

Upon powering up, the amplifier stays in Protect mode, muting the input signal for approximately four seconds while the power supplies charge and stabilize. Also, when power is removed, the input signals are muted so that no thumps or pops are heard.

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Contents Page Page Important Safety Instructions Bewahren SIE Diese Sicherheitshinweise AUF Gardez CES Instructions Guarde Estas Instrucciones Unpacking Power AmplifiersMounting Cooling RequirementsConnecting Inputs Operating PrecautionsConnecting Outputs Connecting PowerWire Guage Charts Stereo Operation Operation ModesBridged Mono Operation AC Power Switch/Circuit Breaker Front Panel Rear Panel Switches & ControlsBridge Select Switch DDT Defeat SwitchPWR LED Front Panel IndicatorsProtection Features Service / Warranty Information Amplifier Maintenance and User ResponsibilitySpeaker Protection Rated Power 2 x 2 ohms Rated Power 4 ohms bridgedRated Power 2 x 4 ohms Rated Power 2 x 8 ohmsCurrent Draw @ 1/3 Power Current Draw @ 1/8 PowerIndicator LEDs ConnectorsAuspacken EndstufenMontage KühlanforderungenSicherheitshinweise für den Betrieb EinleitungAnschluss der Eingänge Anschluss der AusgängeKabelstärkentabellen Stereobetrieb BetriebsmodiBridged-Mono-Betrieb Wechselstrom-Netzschalter/Leistungsschalter Vorderseite Rückseite Schalter UND ReglerEingangsdämpfer Bridge-WahlschalterPWR-LED Vorderseite AnzeigenSchutzfunktionen Wartung DES Verstärkers UND Verantwortung DES Nutzers LautsprecherschutzKundendienst Informationen ZUR Garantie Nennleistung 2 x 2 Ohm Nennleistung 4 Ohm gebrücktNennleistung 2 x 4 Ohm Nennleistung 2 x 8 OhmLeistung Stromaufnahme bei 1/8Stromaufnahme bei 1/3 KühlungAmplificateurs de Puissance InstallationDéballage RefroidissementConnecter les entrées de votre unité Inputs Précautions d’UtilisationConnecter les sorties de votre unité Outputs Alimentation ElectriqueLa Charte De Dimensions Des Cables Stéréo Modes d’OpérationPont Interrupteur DDT Panneau Avant Panneau Arrière Sélecteurs & ContrôlesPanneau Avant Indicateurs Systèmes de Protection Protection des Haut-Parleurs Maintenance et Responsabilité d’UtilisateurRéparation/Informations de Garantie Pont Puissance mesurée 2 x 2 ohms Puissance mesurée 4 ohmsPuissance mesurée 2 x 4 ohms Puissance mesurée 2 x 8 ohmsInfluence intercanal BruitConsommation élèctrique @ De la puissanceDesembalaje Etapas de PotenciaMontaje Requisitos de enfriamientoPrecauciones de Operación IntroducciónConectando Entradas Conectando SalidasTablas de Calibre del Cable Operación Estéreo Modos de OperaciónOperación Bridged Mono Interruptor de Encendido AC/ Circuito Breaker Panel Frontal Panel Trasero Interruptores & ControlesAtenuadores de Entrada Interruptor Selector de BridgeLED PWR Panel Frontal IndicadoresCaracterísticas DE Protección Servicio Post Venta / Información Sobre Garantías Protección DE LOS AltavocesBridged Potencia tasada 2 x 2 ohmios Potencia tasada 4 ohmiosPotencia tasada 2 x 4 ohmios Potencia tasada 2 x 8 ohmiosInterferencia DimensionesEsquema de corriente a 1/8 de PotenciaPeavey Electronics Corporation Limited Warranty 2005