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Manual abstract: user guide ELECTRO-VOICE CP-X

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[. . . ] Comparatorschaltungen vergleichen ständig das Eingangs- und das Ausgangssignal der Endstufen und steuern beim Auftreten von nichtlinearen Betriebszuständen die eingebauten Limiter. Sie schützen die angeschlossenen Lautsprecher vor Überlast durch Endstufenclipping. Durch groß dimensionierte Netzteile mit streuarmen Ringkerntransformatoren wird ein großer Headroom weit oberhalb der ausgewiesenen Nennleistung erzielt. In den Endstufen wurde auf die Verwendung von V/I-Foldback - Limiter-Schaltungen verzichtet, so daß der Betrieb an komplexen Lasten bis zu ± 90° Phasenwinkel problemlos möglich ist. [. . . ] The embodied comparators constantly monitor the power amp's input and output signals, and control the integrated limiters whenever nonlinearity is detected, thus protecting the connected loudspeaker systems against overload and power amplifier clipping. Using widely dimensioned power supplies with low-loss toroidal transformers provide additional headroom way above the rated nominal power output capacity. The power amplifiers do not employ V/I-Foldback-Limiters, which allows to drive even complex loads with phase angles of up to ±90° without any problem. Also the mechanical construction and manufacturing guarantee highest precision. The robust and highly rigid steel chassis is meant to survive the extensive wear of touring applications. The easily readable LED-display provides quick information about the power amplifier's operational state. Ready-mode, signal presence, and the activation of limiters or of one of the protection functions are indicated for both channels individually. All P-Amp Series power amplifiers are capable of handling loads down to 2 ohms. Technical Specifications: P 1201 Amplifier at rated conditions, 8 ohms load, unless otherwise specified. Load Impedance 8 ohms 4 ohms 2 ohms Maximum Midband Output Power 750 W 1200 W 1600 W THD = 1%, 1kHz Rated Output Power 500 W 1000 W ---- THD < 0. 2%, 20Hz . . . Single Channel Output Power 850 W 1450 W 1700 W Dynamic-Headroom, IHF-A Maximum RMS Voltage Swing 86V THD = 1%, 1kHz Voltage Gain at 1kHz 33 dB Slew Rateat 1kHz 40 V/µs Power Consumption 870 W at 1/8 maximum output power @ 4 ohms Input Sensitivity 1. 4 V at rated output power @ 4 ohms, 1kHz THD at rated output power, < 0. 05 % MBW = 80kHz, 1kHz IMD-SMPTE < 0. 08 % 60Hz, 7kHz DIM30 < 0. 03 % 3. 15kHz, 15kHz Frequency Response 13 Hz . . . 20kHz, balanced Damping Factor > 300 / > 200 at 100Hz / 1kHz, 8 ohms Signal to Noise Ratio 106 dB A-weighted, non internal summing mode Power Requirements 240V, 230V, 120V, 100V / 50Hz . . . L'assignation des broches des prises XLR correspond à la norme IEC 268. Ces deux connexions peuvent être utilisées comme entrée ou comme "thru". Le montage de transformateurs d'entrée est possible (en option) en installant des kits d'extension NRS 90208 pour chaque voie de l'amplificateur de puissance. LEVEL For adjusting the input sensitivity, the I-2 module provides recessed, dB-scaled level controls on the rear panel. With the I-2 module installed and level controls being fully open, the input sensitivity of the P-Amps is 1. 4Veff. LEVEL Zum Abgleich der Eingangsempfindlichkeit ist das I-2 Modul mit in der Rückwand versenkten und in dB-skalierten Levelreglern ausgestattet. Die Eingangsempfindlichkeit der P-Amps liegt mit dem I-2 Modul und voll aufgedrehten Levelregler bei 1. 4Veff. NIVEAU Pour régler la sensibilité d'entrée, le module I-2 est équipé de contrôles de niveau encastrés situés à l'arrière et étalonnés en dB. Lorsque le module I-2 est installé et que ses contrôles de niveau sont complètement ouverts, la sensibilité d'entrée des P-Amp est de 1, 4 Veff. MONO-Summing When the I-2 module is employed in stereo power amps, like usual, the two channels A&B are amplified separately. Using the module in a monaural power amp, like the P1201, allows choosing between channel A or channel B. In addition, it is possible to feed both inputs simultaneously for instance with a L/R-stereo signal, automatically resulting in monaural summing of the stereophonic audio signal. MONO-Summierung Wird das I-2 Modul in Stereo Endstufen verwendet, dann werden wie gewohnt die Kanäle A&B getrennt voneinander verstärkt. In der Mono Endstufe P1201 kann nach belieben über Kanal A oder Kanal B eingespielt werden. The O2 module can be installed in stereo power amps, like the P1202, as well as in monaural amplifiers, like the P1201. Module O-2 : Le module O-2 est un module de sortie pour le système P-Amp. Il est spécialement conçu pour être utilisé dans les installations permanentes et dispose pour cela de prises à verrouillage. [. . . ] O-1 im Rückwandslot der Endstufe installiert ist, entfernen Sie dieses. Sie lösen dazu die beiden Befestigungsschrauben, und ziehen die Verbindungsleitungen ab. Das O-2 Modul entsprechend Farbcode-tabelle anstecken ( + yellow, + green, - blue, - black). Dies kann im schlimmsten Fall zum Kurzschluß der Endstufenausgänge führen. DUAL When installing the module into stereophonic power amps, like the P1202, please refer to the color-code-label on the rear panel of the amplifier. [. . . ]


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