DPA 4.3
4-channel Digital Processing Amplifier for Cinema
Features
- Total power up to 5,000 watts
- 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.
- 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™ 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 Euroblock connectors, and four Euroblock touch-proof Speaker connectors.
Power Specifications
| DPA4.2 | DPA4.3 | DPA4.5 | |||||
| Peak | Continuous | Peak | Continuous | Peak | Continuous | ||
| 4 Independent Channels A, B, C, D | 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 | 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 | 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 rthe load and channel count
General Specifications
Typical Distortion | 0.01 - 0.06% | ||
Maximum Distortion | 1.0% | ||
Frequency response | 20 Hz - 15 kHz +/- 0.2 dB | ||
Noise Unweighted Output Unmuted Weighted Output Muted |
-101 dB -109 dB | ||
Gain (1.2V setting) | 34.0 dB | 38.4 dB | 38.4 dB |
Damping factor | >150 | >150 | >150 |
Input impedance | >10k, balanced or unbalanced | ||
Maximum input level (3.9V setting) (1.2V setting) |
12.28V (+24 dBu) 3.88V (+14 dBu) | ||
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 | ||
Agency approvals | UL, CE, RoHS/WEEE compliant, FCC Class A (conducted and radiated emissions) | ||
Controls, Indicators and Connections
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 | AC Power Disconnect | AC Power Disconnect |
Input connectors | 3-pin Euroblock | 3-pin Euroblock | 3-pin Euroblock |
Output connectors | 2-pin Euroblock Speaker | 2-pin Euroblock Speaker | 2-pin Euroblock Speaker |
Weights and Dimensions
Dimensions (HWD) inches | 3.5 x 19 x 12 | 3.5 x 19 x 16 | 3.5 x 19 x 16 |
Dimensions (HWD) mm | 89 x 482 x 305 | 89 x 482 x 406 | 89 x 482 x 406 |
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) |
Carton contents | Locking IEC Cable, Quick Start Guide, USB Cable | ||
Specifications are subject to change without notice.