Explanation of

graphical symbols

The lightning flash with arrowhead symbol, within an equilateral triangle, is 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 humans.

The exclamation point within an equilateral triangle is intended to alert the users to the presence of important operating and mainte- nance (servicing) instructions in the literature accompanying the product.

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION: To reduce the risk of electric shock, do not remove the cover. No user-serviceable parts inside. Refer servicing to qualified service personnel.

WARNING: To prevent fire or electric shock, do not expose this equipment to rain or mois- ture.

Explication des

symbole graphiques

Le symbole éclair avec pointe de flèche à l'intérieur d'un triangle équilatéral est utilisé pour alerter l'utilisateur de la présence à l'intérieur du coffret de "tension non- isolée dangereuse" d'ampleur suffisante pour constituer un risque de choc électrique pour l'être humain.

Le point d'exclamation à l'intérieur d'un triangle équilatéral est employé pour alerter les utilisateur de la présence d'instructions importantes pour le fonctionnement et l'entretien (service) dans les documents accompagnant l'appareil.

ATTENTION!

RISQUE DE CHOC ÉLECTRIQUE

NE PAS OUVRIR

ATTENTION: Pour éviter les risques de choc électrique, ne pas enlever le couvercle. Cet appareil ne comporte aucune pièce pouvant être réparée par l'utilisateur. Confier l'entretien à un technicien qualifié.

AVERTISSEMENT: Pour éviter le risque de choc électrique ou d'incendie, n'exposez cet appareil ni à l'humidité exces- sive ni aux projections d'eau (pluie, ruissellement, etc …)

Erklärung der

bildsymbole

Das Blitzzeichen innerhalb eines gleichseitigen Dreiecks warnt den Benutzer vor nicht-isolierter, gefährlicher Spannung im Inneren des Gerätes. Diese Spannung ist hoch genug, um Personen durch elektrischen Schlag zu gefährden.

Das Ausrufungszeichen innerhalb eines gleichseitigen Dreiecks weist den Benutzer auf wichtige Bedienungs- und Wartungsanweisungen hin, die in den gerätebegleitenden Unterlagen aufgeführt sind.

VORSICHT

GEFAHR EINES

ELEKTRISCHEN SCHLAGES.

NICHT ÖFFNEN!

VORSICHT: Um Gefährdung durch elektrischen Schlag zu vermeiden, darf das Gehäuse nicht geöffnet werden. Es befinden sich keine vom Benutzer reparierbaren Teile im Inneren des Gerätes.

Überlassen Sie jegliche Raparatur dem qualifizierten Fachmann.

WARNUNG: Um die Gefahr eines Brandes bzw. eine Verletzung durch elektrischen Schlag zu vermeiden, sollten Sie das Gerät

niemals Regen oder Feuchtigkeit aussetzen.

Explicación de

símbolos

El rayo inscrito en un tríangulo equilátero alerta al usuario de la presencia de voltaje peligroso no aislado dentro del producto, que pude ser de nivel suficiente como para constitutuir riesgo de descarga eléctrica para las personas.

El signo de exclamación inscrito en un triángulo equilátero alerta a los usuarios de la presencia de instrucciones importantes de funcionamiento y mantenimiento (servicio) en el manual que acompaña el producto.

PRECAUCIÓN

RIESGO DE DESCARGA ELÉCTRICA. NO LO ABRA.

PRECAUCIÓN: Para reducir el riesgo de descarga eléctrica, no quite la tapa. No hay en el interior nada para ajustar por el usuario. Refiera sus

reparaciones a personal cualificado de servicio.

AVISO: Para impedir fuegos o descargas eléctricas, no exponga este equipo a la lluvia o la humedad.

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QSC Audio USA 900, USA 1310 Explanation Graphical symbols, Explication des Symbole graphiques, Erklärung der Bildsymbole
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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.
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