Circuit breaker (100

and 120 VAC amplifiers

only)

The circuit breaker is on the front panel next to the power switch. If the circuit breaker trips due to an AC current overload, reset it. If the breaker trips again quickly, have the amplifier checked by an authorized QSC service center.

Fuse (220–240 VAC

amplifiers only)

The fuse holder is on the front panel next to the power switch. If the fuse fails due to an AC current overload, turn off the amplifier and use a flat- blade screwdriver to open the fuse holder. Replace the fuse with one of the same GMA (5 mm x 20 mm) type (USA 400: 3.15 A; USA 900: 5 A; USA 1310: 16.3 A), re-assemble the fuse holder, and turn on the amplifier again. If the fuse fails again quickly, have the amplifier checked by an authorized QSC service center.

Disjoncteur

(amplificateurs pour

secteur 100 et 120 V CA seulement)

Le disjoncteur est situé sur le panneau avant de l'amplificateur, à côté de l'interrupter principal. Si le disjoncteur oure à cause d'une surcharge de courant, enclenchez-le. Si le disjoncteur déclenche tout de suite, faire vérifier l'amplificateur par un centre de service QSC autorisé.

Fusible (amplificateurs

pour secteur 220-240 V

CA seulment)

Le porte-fusible est situé sur le panneau avant de l'amplificateur, à côté de l'interrupteur principal. Si le fusible cède à cause d'une surcharge de courant, débrancher l'amplificateur et utiliser un tournevis

àlame plate pour ouvrir le porte- fusible. Remplacer le fusible par un du même type, un GMA (5mm x 20mm), et de même capacité (USA 400: 3.15 A; USA 900: 5 A; USA 1310: 16.3 A), refermer le porte- fusible et rebrancher l'amplificateur. Si le fusible cède tout de suite, faire vérifier l'amplificateur par un centre de service QSC autorisé.

Sicherungsautomat

(nur bei 100- und 120

Volt-Ausführungen)

Der Sicherungsautomat befindet sich auf der Vorderseite neben dem Netzschalter. Falls der Sicherungsautomat wegen einer Überbelastung abschaltet, können Sie ihn einfach wieder hineindrücken. Falls der Automat jedoch wieder anspricht, liegt ein unsicherer Betriebszustand oder auch ein Defekt vor, der nur von einem Fachmann beseitigt werden sollte.

Sicherung (bei 220-240

Volt-Ausführungen)

Der Sicherungshalter befindet sich in der Nähe des Netzschalters auf der Vorderseite. Fällt die Sicherung aus, so schalten Sie das Gerät bitte aus, entfernen die Abdeckkappe mit einem Schraubendreher, und wechseln Sie die Sicherung gegen eine mit den Original werten: USA 400 3,15 Ampère, USA 900 5 Ampère, und USA 1310 16,3 Ampère, Schrauben Sie die Abdeckkappe wieder auf und schalten Sie den Verstärker ein. Falls die Sicherung gleich wieder ausfällt, so liegt ein unsicherer Betriebszustand oder auch ein Defekt vor, der nur von einem qualifizierten Fachmann beseitigt werden sollte.

Disyuntor (solo en

amplificadores de 100

y 120 VAC)

El disyuntor está situado en el panel frontal, cerca del interruptor de alimentación. Si el disyuntor se abre debido a una sobrecarga de corriente, devuelvalo a su posición inicial. Si el disyuntor se vuelve a abrir rápidamente es necesario que el amplificador sea revisado por un servicio técnico autoizado QSC.

Fusible (solo en

amplificadores de 220-

240 VAC)

El porta fusibles está situado en el panel frontal, cerca del interruptor de alimentación. Si el fusible se funde debido a una sobrecarga de corriente, apague el amplificador y use un destornillador de cabeza plana para abrir el porta fusibles, reemplace el fusible por uno de las mismas características (5mm x 20

mm)(USA400 3.15 A, USA 900 5 A, USA 1310 16.3 A), cierre el porta fusibles y encienda el amplificador. Si se funde de nuevo rápidamente es necesario que el amplificador sea revisado por un servicio técnico autorizado QSC.

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QSC Audio USA 400 Circuit breaker 120 VAC amplifiers Only, Fuse 220-240 VAC Amplifiers only, Fusible amplificateurs

USA 400, USA 1310, USA 900 specifications

QSC Audio, a prominent name in professional audio solutions, offers a range of power amplifiers that are designed to cater to various audio needs. Among its notable models are the USA 400, USA 1310, and USA 900, each engineered with distinct features, technologies, and characteristics that make them suitable for different applications.

Starting with the QSC USA 400, this amplifier is renowned for its compact design and robust performance. Delivering 400 watts per channel at 4 ohms, it is ideal for smaller venues such as clubs, churches, and corporate events. The USA 400 employs advanced thermal management technology, ensuring it remains cool during extended usage. Additionally, its onboard limiter safeguards connected speakers from damage, making it a reliable choice for professionals who prioritize system integrity. Its lightweight design enhances portability, allowing for easy transportation and setup.

Next, the USA 1310 amplifier stands out for its versatility and high power output. With 1,300 watts in bridged mode and excellent stereo performance capabilities, the USA 1310 is suited for larger events and installations. It features QSC's PowerWave technology, which optimizes efficiency and reduces heat generation, contributing to its long operational life. The amplifier also includes flexible input options, accommodating both balanced and unbalanced signals, and features a front-panel LED status indicator, which simplifies the monitoring process during live performances.

Finally, the USA 900 is a powerful and dependable amplifier designed for various audio applications. With up to 900 watts of power, it strikes a balance between performance and efficiency. The USA 900 incorporates a robust power supply and a class H topology, which improves its performance and lowers distortion levels, ensuring high-quality audio output. It also comes with comprehensive speaker protection features and allows for flexible bridging configurations to accommodate diverse sound system setups.

In conclusion, QSC Audio's USA series, comprising the USA 400, USA 1310, and USA 900, offers a range of options for professionals seeking reliability, performance, and versatility in power amplification. Each amplifier is equipped with advanced technologies that ensure high-quality audio while maintaining operational efficiency, making them ideal for a variety of audio environments. Whether for small venues or large events, QSC's commitment to excellence in audio engineering is evident in this impressive lineup.