เพาเวอร์แอมป์ QSC GX3 เครื่องขยายเสียง 2 ชาเเนล คลาส D 2×300 วัตต์ ที่ 8 โอมห์ QSC GX3 เพาเวอร์แอมป์ ขยายเสียง จากแบรนด์ QSC
QSC GX3
Power Amplifier
Power levels matched to the most popular speakers. Inputs: XLR, 1/4″ TRS and phono. Outputs: Speakon® combo and binding posts.
คุณสมบัติ
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Power levels matched to the most popular speakers used by entertainers
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Optimized for maximum real-world headroom into 4- and 8-ohm speaker systems
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Inputs: XLR, 1/4″ TRS and phono input connectors for compatibility with any source
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Outputs: Speakon® combo accepts 1/4″ (TS) plugs or Speakon 2- and 4-pole plugs (connects 2 poles only). Binding posts support all other speaker wiring systems
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Minimum depth chassis (10.1″ / 257 mm) fits in compact, inexpensive effects racks
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Lightweight – GX3 and GX5 less than 26 lb (12.5 kg). GX7 only 15.5 lb (7 kg)*
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Detented gain controls for precise setting and matching of sensitivity
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GuardRail™ automatically protects the amplifier and loudspeakers from damage due to temperature rise or overdrive without shutting down the show
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Front panel LEDs monitor power, signal, and clipping
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Subwoofer/satellite crossover built-in
* 230V 16.5 lb (7.5 kg)
สเปค
SPECIFICATIONS |
GX3 |
GX5 |
GX7 |
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Output power per channel |
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8 ohms / 1 kHz (both channels driven) |
300 W | 500 W | 725 W | |||
8 ohms / 1 kHz (single channel driven) |
350 W | 600 W | 800 W | |||
4 ohms / 1 kHz (both channels driven) |
425 W | 700 W | 1000 W | |||
4 ohms / 1 kHz (single channel driven) |
500 W | 850 W | 1200 W | |||
Distortion (1 dB below rated power, 1 kHz) |
8 ohms: less than 0.02% 4 ohms: less than 0.05% |
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Signal to Noise (20 Hz – 20 kHz) |
100 dB | |||||
Input Sensitivity |
1.2 V rms | |||||
Voltage Gain |
32.2 dB | 34.4 dB | 36.1 dB | |||
Output Circuitry |
Class B | 2-tier Class H | 2-tier Class H | |||
Power Requirements (1/8 power, pink noise at 4 ohms, 120V) |
6.3 A | 6 A | 10.1 A | |||
Frequency Response |
20 Hz–20 kHz, +0, -1 dB | |||||
Dynamic Headroom (4 ohms) |
2 dB | |||||
Input Impedance |
Greater than 20 kΩ (balanced) | |||||
Maximum Input Level |
+24 dBu (16 V rms) | |||||
Input Connectors (each channel) |
3-pin XLR and 1/4″ TRS, balanced, parallel Phono, unbalanced |
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Output Connectors (each channel) |
Speakon®, 1/4″, Binding posts | |||||
Amplifier and Load Protection |
Short circuit, open circuit, thermal, RF protection Load protected against DC faults |
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Front Panel Controls and Indicators |
Gain controls, 21 detents Red CLIP LEDs, proportional, 0.1% THD threshold Green SIGNAL LEDs, threshold 35 dB below clipping Blue POWER LED, AC on |
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Rear Panel Controls |
Full Range / Crossover switch 100 Hz, 3rd order LP (sub), 2nd order HP (top) |
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Dimensions |
Height: 3.5″ (89 mm) 2RU Width: 19″ (483 mm) Depth: 10.1″ (257 mm) |
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Weight |
Net: 27 lb (12.1 kg) Shipping: 31 lb (14.1 kg) |
Net: 28 lb (12.6 kg) Shipping: 32 lb (14.6 kg) |
120V model: Net: 15.5 lb (7 kg) Shipping: 20.5 lb (9.3 kg) 230V model: Net: 16.5 lb (7.5 kg) Shipping: 21.5 lb (9.75 kg) |
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Agency Approvals |
UL, CE, RoHS/WEEE Compliant | |||||
AC Current and Heating, 120 VAC
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GX3 | GX5 | GX7 | |||
Operating Condition |
AC amps | BTU/hour | AC amps | BTU/hour | AC amps | BTU/hour |
Idle |
0.2 | 44 | 0.3 | 60 | 0.6 | 82 |
8 + 8 ohms, 1/8 power 1 |
4.1 | 904 | 3.3 | 734 | 6.7 | 1169 |
8 + 8 ohms, 1/3 power 2 |
6.1 | 1160 | 8.5 | 1456 | 13.3 | 1807 |
8 + 8 ohms, full power 3 |
9.75 | 1109 | 16.2 | 1891 | 26.5 | 2167 |
4 + 4 ohms, 1/8 power 1 |
6.3 | 1515 | 5.8 | 1160 | 10.1 | 1963 |
4 + 4 ohms, 1/3 power 2 |
9.4 | 2105 | 11.2 | 2162 | 18.5 | 2612 |
4 + 4 ohms, full power 3 |
15.0 | 2297 | 24.5 | 3754 | 40 | 4478 |
