Woodbrass
Brand:
QSC
Description from Woodbrass :
GX Series amplifiers are ideal for professional entertainers who require maximum performance and portability on a limited budget. The hallmarks of the QSC brand - professional audio quality, meticulous engineering, precision manufacturing and long-term reliability - are all intrinsic to GX. Add contemporary styling, multiple input/output options, light weight, and advanced protection circuitry, and the GX Series clearly represents real value - something everyone can use. GX amplifiers deliver just the right amount of power to the most popular speakers used by entertainers. Typically, loudspeaker manufacturers recommend an amplifier with power output equal to the speaker's Program (Music) Power rating or two times (2 x) the Continuous (RMS) Power rating.The GX3 is ideal for speakers in the 300 watt (Program) range, while the GX5 provides full performance for 500 watt (Program) speakers. Owners of popular 4 ohm loudspeakers (such as dual-woofer, two-way models) will find the 700 watt (4 ohm) power of the GX5 an ideal match. Technical Notes :The GX3 uses the latest evolution of the QSC Grounded Collector output system, for optimum cooling of the critical power transistors. A true Class B biasing system combines maximum thermal efficiency with excellent audio performance. The GX5 uses a Class H system, based on key elements of the PL Series, (PLX, PL3, CX, DCA) almost doubling power in the same size and weight. QSC design expertise allows the output devices to shift from low-power to high-power rails in less than a millionth of a second, ensuring that the output power is always right where it needs to be without excess loss.Both amplifiers use premium toroidal power transformers for reliable mid-weight performance. A variable-speed fan moves air crosswise through the amplifier, drawing cool air in over the power transformer, through the fan, and then over the heat sink. This keeps the transformer cool and allows a full size heat sink to fit in a down-sized chassis.As always, GX Series amplifiers are fully protected from the usual hazards of the trade, ensuring stable performance and long life. GuardRailGuardRail protection delivers full peak power while preventing detrimental overloads. During excessive clipping, or extreme overheating, GuardRail reduces gain just enough to preserve the integrity of the music, protect the speakers and keep the audience excited, without unprofessional distortion levels or shutdowns.Subwoofer/Satellite CrossoverA subwoofer reduces strain on the full-range speaker, allowing it to play louder, or letting a smaller speaker do the same job. The GX Series supports this mode with a Crossover switch that splits the full-range input entering Ch 1, sending 20 Hz -100 Hz to the sub (Ch 1) and 100 Hz - 20 kHz to the top box (Ch 2). The front panel gain controls balance the sub and top box, while GuardRail optimizes peak power into the sub and top individually, for greater musical impact and dynamic range. GuardRail optimizes peak power into the sub and top individually, for greater musical impact and dynamic range.FEATURES- Power levels matched to the most popular speakers used by entertainers- Optimized for maximum real-world headroom into 4 ohm and 8 ohm speaker systems- Inputs: XLR, 1/4 TRS and phono input connectors for compatibility with any source- Outputs: Speakon combo accepts, 1/4 (TS) plugs or Speakon 2-pole and 4-pole plugs (connects 2 poles only). Binding posts support all other speaker wiring systems- Minimum depth chassis (10.1/257 mm) fits in compact, inexpensive effects racks- Lightweight : less than 26 lbs (12.5 kg).- Detented gain controls for precise setting and matching of sensitivity- GuardRail automatically protects the amplifier and loudspeakers from damage due to temperature rise or overdrive without shutting down the show- Front panel LEDs monitor Power, Signal and Clipping- Subwoofer/Satellite crossover built-in
GX Series amplifiers are ideal for professional entertainers who require maximum performance and portability on a limited budget. The hallmarks of the QSC brand - professional audio quality, meticulous engineering, precision manufacturing and long-term reliability - are all intrinsic to GX. Add contemporary styling, multiple input/output options, light weight, and advanced protection circuitry, and the GX Series clearly represents real value - something everyone can use. GX amplifiers deliver just the right amount of power to the most popular speakers used by entertainers. Typically, loudspeaker manufacturers recommend an amplifier with power output equal to the speaker's Program (Music) Power rating or two times (2 x) the Continuous (RMS) Power rating.The GX3 is ideal for speakers in the 300 watt (Program) range, while the GX5 provides full performance for 500 watt (Program) speakers. Owners of popular 4 ohm loudspeakers (such as dual-woofer, two-way models) will find the 700 watt (4 ohm) power of the GX5 an ideal match. Technical Notes :The GX3 uses the latest evolution of the QSC Grounded Collector output system, for optimum cooling of the critical power transistors. A true Class B biasing system combines maximum thermal efficiency with excellent audio performance. The GX5 uses a Class H system, based on key elements of the PL Series, (PLX, PL3, CX, DCA) almost doubling power in the same size and weight. QSC design expertise allows the output devices to shift from low-power to high-power rails in less than a millionth of a second, ensuring that the output power is always right where it needs to be without excess loss.Both amplifiers use premium toroidal power transformers for reliable mid-weight performance. A variable-speed fan moves air crosswise through the amplifier, drawing cool air in over the power transformer, through the fan, and then over the heat sink. This keeps the transformer cool and allows a full size heat sink to fit in a down-sized chassis.As always, GX Series amplifiers are fully protected from the usual hazards of the trade, ensuring stable performance and long life. GuardRailGuardRail protection delivers full peak power while preventing detrimental overloads. During excessive clipping, or extreme overheating, GuardRail reduces gain just enough to preserve the integrity of the music, protect the speakers and keep the audience excited, without unprofessional distortion levels or shutdowns.Subwoofer/Satellite CrossoverA subwoofer reduces strain on the full-range speaker, allowing it to play louder, or letting a smaller speaker do the same job. The GX Series supports this mode with a Crossover switch that splits the full-range input entering Ch 1, sending 20 Hz -100 Hz to the sub (Ch 1) and 100 Hz - 20 kHz to the top box (Ch 2). The front panel gain controls balance the sub and top box, while GuardRail optimizes peak power into the sub and top individually, for greater musical impact and dynamic range. GuardRail optimizes peak power into the sub and top individually, for greater musical impact and dynamic range.FEATURES- Power levels matched to the most popular speakers used by entertainers- Optimized for maximum real-world headroom into 4 ohm and 8 ohm speaker systems- Inputs: XLR, 1/4 TRS and phono input connectors for compatibility with any source- Outputs: Speakon combo accepts, 1/4 (TS) plugs or Speakon 2-pole and 4-pole plugs (connects 2 poles only). Binding posts support all other speaker wiring systems- Minimum depth chassis (10.1/257 mm) fits in compact, inexpensive effects racks- Lightweight : less than 26 lbs (12.5 kg).- Detented gain controls for precise setting and matching of sensitivity- GuardRail automatically protects the amplifier and loudspeakers from damage due to temperature rise or overdrive without shutting down the show- Front panel LEDs monitor Power, Signal and Clipping- Subwoofer/Satellite crossover built-in
Notes techniques.
Le GX3 utilise la dernière évolution du système de sortie à collecteur commun QSC, pour un refroidissement optimal des transistors de puissance essentiels. Un système de polarisation en véritable Classe B associe une efficacité thermique maximale à d'excellentes performances audio. Le GX5 utilise un système en Classe H, basé sur les principaux éléments de la gamme PL (PLX, PL3, CX, DCA), doublant quasiment la puissance pour une taille et un poids identiques.
Comme toujours, les amplificateurs sont totalement protégés des risques habituels du métier, assurant des performances stables et une longue durée de vie.
GuardRail.
La protection GuardRail donne une puissance crête maximale tout en évitant les surcharges préjudiciables. En cas d'écrêtage excessif ou de surchauffe extrême, GuardRail réduit juste assez le gain pour préserver l'intégrité de la musique, protéger les enceintes et garder le public enthousiaste, sans niveaux de distorsion ou interruptions peu professionnels.
Crossover caisson de graves/satellite.
Un caisson de graves réduit les efforts demandés à l'enceinte large bande, lui permettant de jouer plus fort, ou laissant une enceinte plus petite faire le même travail. La gamme GX permet ce mode de fonctionnement avec un filtre répartiteur (crossover) qui divise l'entrée large bande du canal 1 en bande 20 - 100 Hz pour le caisson de graves (canal 1) et bande 100 Hz - 20 kHz pour le satellite (canal 2). Les commandes de gain de la face avant assurent la balance entre caisson et satellite, tandis que GuardRail optimise individuellement la puissance crête dans le caisson et le satellite, pour un plus grand impact musical et plus de dynamique.
Points forts :
- Niveaux de puissance adaptés aux enceintes les plus communément employées sur scène.
- Optimisés pour une marge réelle maximale avec des systèmes d'enceintes en 4 Ohms et 8 Ohms.
- Entrées : XLR, jack 6,35 mm 3 contacts (TRS) et Cinch (RCA/ phono) pour compatibilité avec tout type de source.
- Sorties : mixtes Speakon / jack 6,35 mm 2 contacts (TS) ou Speakon 2 et 4 points (2 points seulement sont connectés). Les borniers acceptent tous les autres systèmes de câblage.
- Le châssis de profondeur minimale (257 mm) tient dans des racks compacts et abordables.
- Légers - moins de 12,5 kg (GX3 et GX5).
- Commandes de gain crantées pour la précision du réglage et de l'adaptation de la sensibilite.
- GuardRailTM protège automatiquement l'amplificateur et les enceintes des dommages causés par la surchauffe ou la saturation, sans interrompre le spectacle.
- Diodes témoins d'alimentation, de signal et d'écrêtage en face avant.
- Filtre répartiteur (crossover) caisson de graves/satellite.
Caractéristiques techniques :
Mode STEREO
8 Ohms/ sur les deux canaux / 1 kHz : 500 W
8 Ohms / sur un canal / 1 kHz : 600 W
4 Ohms / sur les deux canaux / 1 kHz : 700 W
4 Ohms/ sur un canal / 1 kHz : 850 W
Distorsion (type)
1 kHz : 1 dB sous la puissance nominale : 8 Ohms : moins de 0,02 % / 4 Ohms : moins de 0,5 %
Rapport signal/bruit (20 Hz - 20 kHz) : 100 dB
Sensibilité d'entrée : 1.2 Vrms
Gain en tension (8 Ohms) : 34.4 dB
Circuit d'amplification : Class H (2 étages)
Alimentation requise (1/8 de puissance, bruit rose sous 4 Ohms, 120 V) : 6 A
Réponse en fréquence : 20 Hz - 20 kHz, 0, -1 dB
Marge dynamique (4 Ohms) : 2 dB
Facteur d'amortissement : 100
Impédance d'entrée (Ohms) : Supérieure à 20 k (symétrique)
Niveau d'entrée maximal : 24 dB (16 Vrms)
Connecteurs d'entrée (chaque canal) : XLR 3 broches et jack 6,35 mm 3 contacts, symétriques, en parallèle Cinch (RCA/phono), asymétrique
Connecteurs de sortie (chaque canal) : Speakon, jack 6,35 mm, borniers
Protection de l'amplificateur et de la charge : Court-circuit, circuit ouvert, thermique, HF. Charge protégée des composantes continues
Commandes et témoins de la face avant : Commandes de gain, 21 crans. Diodes d'écrêtage rouges, proportionnelles, seuil à 0,1 % de DHT. Diodes de signal vertes, seuil à -35 dB. Diode d'alimentation bleue, témoin d'alimentation secteur
Commandes de face arrière : Sélecteur large bande/filtre répartiteur (crossover) 100 Hz, filtre passe-bas du 3ème ordre (caisson), passe-haut du 2ème ordre (satellite).
Poids net : 12.6 kg
Poids brut : 14.6 kg
Certifications : UL, CE, RoHS/VVEEE
| Seller information : | Woodbrass |
| Place : | Nantes, France |
| Shipping : | Livraison Mondiale |
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