DPA 4.2

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

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

1200 W 800 W 2400 W 1250 W 4000 W 2250 W
1500 W 600 W NR* NR* NR* NR*
NR* NR* NR* NR* NR* NR*
2 Channel Parallel
AB or CD
Doubles Current

500 W 400 W 1300 W 1150 W 1250 W 1150 W
950 W 800 W 2000 W 1250 W 2400 W 2250 W
1200 W 800 W 2500 W 1250 W 4000 W 2100 W
1 Channel 3CH Parallel
ABC
Triples Current

500 W 400 W 1400 W 1150 W 1400 W 1150 W
950 W 800 W 2400 W 2000 W 2500 W 2400 W
1800 W 1200 W 3500 W 2500 W 4500 W 4100 W
1 Channel Bridged/Parallel
AB+CD
Doubles Current and Voltage

1600 W 1500 W 3500 W 2500 W 4500 W 4200 W
2500 W 1600 W 5000 W 2500 W 7500 W 4200 W
NR* NR* NR* NR* NR* NR*
1 Channel 4CH Parallel
ABCD
Quadruples Current

500 W 400 W 1400 W 1150 W 1600 W 1150 W
1000 W 800 W 3000 W 2500 W 3000 W 2300 W
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

 

DPA4.2

DPA4.3

DPA4.5

Typical Distortion

0.01 - 0.06%

Maximum Distortion

 1.0%

Frequency response

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

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

 

DPA4.2

DPA4.3

DPA4.5

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

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

 

DPA4.2

DPA4.3

DPA4.5

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.