เครื่องขยายเสียง ยี่ห้อ QSC รุ่น CXD4 2
Features
- Flexible Amplifier Summing Technology™ (FAST) drives most any loudspeaker system or configuration by distributing total amplifier power across one, two, three or all four channels.
- Capable of providing up to 5,000 watts continuous and 8,000 watts peak with 70V or 100V direct drive on each output of the CXD4.3 and CXD4.5, and on bridged output pairs of the CXD4.2.
- Full function onboard loudspeaker processing DSP with crossover and parametric EQ Filters, limiting and alignment delay eliminate the need for outboard loudspeaker processors.
- E Series Entertainment System DSP Tunings are now available for CXD processing amplifiers:
– Visit the Amplifier Navigator Software to download and update
- PowerLight universal switch-mode power supply with PFC for highest efficiency, improved audio performance, and low heat dissipation.
- Powerful Intrinsic Correction™ processing maximizes the sonic performance of QSC loudspeakers.
- 20 factory preset configurations that can be modified and stored in the 50 user presets.
- Integrated front panel with channel select and mute buttons, input and output LED metering, 400×240 LCD, intuitive navigation buttons, LED power button and indicator, and cast aluminum handles.
- GPIO for additional functionality including a heartbeat output for life-safety supervision.
- Four Phoenix input connectors, and four Phoenix touch-proof loudspeaker output connectors
General Specifications
| CXD4.2 | CXD4.3 | CXD4.5 | |
| Typical distortion | 0.01–0.06% | ||
| Maximum distortion | 1.00% | ||
| Frequency response | 20 Hz–15 kHz ±0.2 dB 20 Hz–20 kHz +0.2/-0.7 dB |
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| Noise Unweighted Output Unmuted Weighted Output Muted |
-101 dB -109 dB |
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| Gain (1.2V setting) |
34.0 dB | 38.4 dB | 38.4 dB |
| Damping factor | >150 | ||
| Input impedance | >10k ohm, balanced or unbalanced | ||
| Maximum rms input level (3.9V setting) (1.2V setting) |
12.28 V (+24 dBu) 3.88 V (+14 dBu) |
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| Amplifier and load protection | Short circuit, open circuit, thermal, RF protection. on/off muting, DC fault shutdown, active inrush limiting, input current limiting | ||
| AC power input | 4.2: Universal Power Supply 100-132/200–240 VAC, 50–60 Hz | ||
| 4.3/4.5: Universal Power Supply 100–240 VAC, 50–60 Hz | |||
| Agency approvals | UL, CE, RoHS/WEEE compliant, FCC Class A (conducted and radiated emissions) | ||
| Carton contents | Locking IEC cable, Quick Start Guide, USB cable | ||
Power Specifications
| CXD4.2 | CXD4.3 | CXD4.5 | |||||
| Max | Continuous | Max | Continuous | Max | Continuous | ||
| 4 Independent Channels A, B, C, D |
70V | N/A | N/A | 500 W | 500 W | 1000 W | 1000 W |
| 100V | N/A | N/A | 625 W | 625 W | 1250 W | 1250 W | |
| 8Ω | 500 W | 400 W | 900 W | 625 W | 1200 W | 1150 W | |
| 4Ω | 700 W | 400 W | 1400 W | 625 W | 2000 W | 1250 W | |
| 2Ω | 625 W | 325 W | 1200 W | 625 W | 1600 W | 625 W | |
| 2 Channel BTL Bridged A+B or C+D Doubles Voltage |
70V-4.2Q | 1500 W | 800 W | N/A | N/A | N/A | N/A |
| 100V-4.2Q | 1200 W | 800 W | N/A | N/A | N/A | N/A | |
| 8Ω | 1200 W | 800 W | 2400 W | 1250 W | 4000 W | 2250 W | |
| 4Ω | 1500 W | 600 W | NR* | NR* | NR* | NR* | |
| 2Ω | NR* | NR* | NR* | NR* | NR* | NR* | |
| 2 Channel Parallel AB or CD Doubles Current |
70V | N/A | N/A | 1800 W | 1150 W | 2000 W | 1800 W |
| 100V | N/A | n/A | 1150 W | 1150 W | 1150 W | 1150 W | |
| 8Ω | 500 W | 400 W | 1300 W | 1150 W | 1250 W | 1150 W | |
| 4Ω | 950 W | 800 W | 2000 W | 1250 W | 2400 W | 2250 W | |
| 2Ω | 1200 W | 800 W | 2500 W | 1250 W | 4000 W | 2100 W | |
| 1 Channel 3CH Parallel ABC Triples Current |
8Ω | 500 W | 400 W | 1400 W | 1150 W | 1400 W | 1150 W |
| 4Ω | 950 W | 800 W | 2400 W | 2000 W | 2500 W | 2400 W | |
| 2Ω | 1800 W | 1200 W | 3500 W | 2500 W | 4500 W | 4100 W | |
| 1 Channel Bridged/Parallel AB+CD Doubles Current and Voltage |
8Ω | 1600 W | 1500 W | 3500 W | 2500 W | 4500 W | 4200 W |
| 4Ω | 2500 W | 1600 W | 5000 W | 2500 W | 7500 W | 4200 W | |
| 2Ω | NR* | NR* | NR* | NR* | NR* | NR* | |
| 1 Channel 4CH Parallel ABCD Quadruples Current |
8Ω | 500 W | 400 W | 1400 W | 1150 W | 1600 W | 1150 W |
| 4Ω | 1000 W | 800 W | 3000 W | 2500 W | 3000 W | 2300 W | |
| 2Ω | 1700 W | 1600 W | 5000 W | 2500 W | 5300 W | 4200 W | |
NR* = Not Recommended due to excessive current draw
BOLD = Optimal configuration fo the load and channel count
Controls, Indicators and Connections
| CXD4.2 | CXD4.3 | CXD4.5 | ||||
| Controls and indicators (front) | Power• Channel MUTE Buttons • Channel SELECT buttons • Channel input signal and CLIP LED indicators • Channel output and LIMIT LED meters • HOME, ENTER, EXIT, GAIN navigation buttons • Control knob | |||||
| Controls and indicators (rear) | AC power disconnect | |||||
Weights and Dimensions
| CXD4.2 | CXD4.3 | CXD4.5 | |
| Dimensions (HWD) inches | 3.5 × 19 × 12 | 3.5 × 19 × 16 | 3.5 × 19 × 16 |
| Dimensions (HWD) mm | 89 × 482 × 305 | 89 × 482 × 406 | 89 × 482 × 406 |
| Weight Net | 18.5 lb / 8.39 kg | 21 lb / 9.53 kg | 22 lb / 9.98 kg |
| Weight Shipping | 22 lb / 10.0 kg | 25 lb / 11.3 kg | 26 lb / 11.8 kg |
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