• Flexible Amplifier Summing Technology¢â (FAST) drives most any loudspeaker system or configuration by distributing total amplifier power across one, two, three or all four channels.
• Includes 70V and 100V direct drive capability.
• Full function onboard loudspeaker processing DSP with Crossover and Parametric EQ Filters, Limiting and Alignment Delay eliminate the need for outboard loudspeaker processors.
• PowerLight universal switchmode power supply with PFC for highest effiency, improved audio performance, and low heat dissipation.
• Preset Wizard simplifies amplifier setup providing system design tools and loudspeaker selection from a list of speakers.
• Powerful Intrinsic Correction¢â 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, 400x240 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 Input Phoenix connectors, and four Phoenix touch-proof Speaker
CXD4.2
CXD4.3
CXD4.5
4 Ch. Continuous1
100 Vrms
70 Vmx
8¥Ø
4¥Ø
2¥Ø
N/A
400 Watts
325 Watts
500 Watts
625 Watts
1000 Watts
1250 Watts
1150 Watts
2 Ch. Continuous1
800 Watts
650 Watts
1200 Watts
2250 Watts
2100 Watts
1 Ch. Continuous1
1¥Ø
1600 Watts
2500 Watts
4200 Watts
4250 Watts
3700 Watts
Typical Distortion
0.01 - 0.03%
0.03 - 0.06%
Maximum Distortion
4¥Ø - 8¥Ø
1.0%
Frequency response (8¥Ø)
20 Hz - 15 kHz +/- 0.2 dB
20 Hz - 20 kHz +0.2 dB / -0.7 dB
Noise
Unweighted Output Unmuted
Weighted Output Muted
-101 dB
-109 dB
Gain (1.2V setting)
34.0 dB
38.4 dB
Damping factor
>150
Input impedance
>10k, balanced or unbalanced
Maximum input level
(3.9V setting)
(1.2V setting)
12.28V (+24 dBu)
3.88V (+14 dBu)
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
Input connectors
3-pin Phoenix
Output connectors
2-pin Phoenix Speaker
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
Universal Power Supply 100 - 240 VAC, 50 - 60 Hz
Dimensions (HWD)
3.5¡± x 19¡± x 12¡± (89mm x 482mm x 305mm)
3.5¡± x 19¡± x 16¡± (89mm x 482mm x 406mm)
Weight, Net / Shipping
18.5 lb (8.4 kg) / 22 lb (10.0 kg)
21.0 lb (9.5 kg) / 25 lb (11.3 kg)
22.0 lb (10.0 kg) / 26 lb (11.8 kg)
Agency approvals
UL, CE, RoHS/WEEE compliant, FCC Class A (conducted and radiated emissions)
Carton contents
Locking IEC Cable, Quick Start Guide, USB Cable
1 1.0 kHz sine wave, 1% THD, 1 channel driven