QSC Audio USA 1310, USA 900, USA 400 user manual Positions 3 and 6 Limiter

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POSITIONS 3 AND 6: LIMITER

These two positions affect the clip limiter for Channel 2 and Channel 1, respectively. The “ON” setting enables the limiter for that channel, while the “OFF” setting disables it.

POSITIONS 4, 5, 7, AND 8: HIGH-

PASS FILTER

Setting position 4 to “ON” enables the high-pass filter on Channel 2, and “OFF” disables it. Position 7 does the same for Channel 1.

Positions 5 and 8 determine the cut- off frequencies of the two channel’s filters: Up (the “ON” setting) is for a cut-off of 30 Hz, and down (the “OFF” position) is for 50 Hz.

COMMUTATEURS 3 ET 6:

LIMITEUR E'ÈCRÊTEMENT

Ces deux commutateurs activent le limiteur du canal 1 et du canal 2 individuellement. En position ON, le limiteur est en fonction, en position OFF il est hors fonction.

COMMUTATEURS 4, 5, 7, ET 8:

FILTRE PASSE-HAUT

Le circuit filtre passe-haut du canal 1 est activé en position ON du commutateur 4, il est coupé en position OFF. Le commutateur 7 fait de même pour le canal 2.

Les commutateurs 5 et 8 règlent la fréquence du filtre passe haut pour chacun des deux canaux respectivement: en postion ON, ils sont réglés à 30 Hz, en position OFF, ils sont à 50 Hz.

POSITION 3 UND 6: LIMITER

Diese zwei Schalter dienen in „ON”-

Stellung dem Einschalten der Limiter

für Kanal zwei (Nr. 3) und eins (Nr. 6).

POSITION 4, 5, 7, UND 8:

HOCHPASSFILTER

Mit Schalter Nr. 4 wird das Hochpaßfilter für Kanal zwei eingeschaltet; mit Nr. 7 für Kanal eins. Schalter Nr. 5 auf Hochstellung setzt die Eckfrequenz des Hochpaßfilters auf 30 Hz, in der unteren Stellung auf 50 Hz. Nr. 8 tut das Gleiche für Kanal zwei.

POSICIONES 3 Y 6: LIMITADOR

Estas dos posiciones afectan al limitador del canal 2 y canal 1, respectivamente. La posición en "ON" activa el limitador para ese canal mientras la posición en "OFF" lo inhabilita.

POSITION 4, 5, 7, Y 8: FILTRO

PASA ALTOS

la posición 4 en "ON" activa el filtro pasa altos del canal 2 en "OFF" se desactiva dicho filtro. La posición 7 cumple la misma función para el canal 1.

Las posiciones 5 y 8 determinan la frecuencia de corte de los dos filtros de los canales. La posición en "ON" activa el corte de frecuencias a 30 Hz, mientras en "OFF" activa el corte a 50 Hz.

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Contents Manuel de ’utilisateur Bedienhandbuch A S e r i e sAddress Explication des Symbole graphiques Explanation Graphical symbolsErklärung der Bildsymbole Explicación de SímbolosDéclaration de Conformité Declaration ConformityKorformitätserklärung Declaración de ConformidadFront panel USA USA 400 or USA T R O D U C C I Ó N N F Ü H R U N GPanneau arrière Rear panelRückseite Panel posteriorN T a G E U N T I N GF E S T I G U N G N T a J EInputs Operating voltage AC mainsTension d’utilisation Alimentation CA EntréesLimiter OutputsSorties LimiteurFiltre passe haut High-pass filterHochpaßfilter Filtro Pasa AltosT R I E B E R a T I O NE R a C I Ó N Positions 3 and 6 Limiter Fuse 220-240 VAC Amplifiers only Circuit breaker 120 VAC amplifiers OnlyFusible amplificateurs CA seulmentGain controls LED indicatorsContrôles de gain Indicateurs DELModes parallèle Stéreo, et mono ponté Bridgé Parallel, stereo, Bridged monoStereobetrieb, und Mono-Brückenbetrieb Estéreo, paralelo y Mono puenteBRIDGED-MONO Mode Caution O T E C C I Ó N O T E C T I O NProtection contre une Anomalie CC DC fault ProtectionProtection entrées/ sorties Schutz gegen GleichspannungTechnische Daten Especificaciones USA EspecificacionesR R a N T Y I N F O R M a T I O N Product WarrantyInformations DE G a R a N T I E Información DE G a R a N T Í aTelephone Numbers D R E S S L E P H O N E I N F O R M a T I O N

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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