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QSC DPA4.2 User Manual

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DPA Amplifiers

User Manual

DPA4.2 — 4 Channel, 1600 W Amplifi er
DPA4.3 — 4 Channel, 2500 W Amplifi er
DPA4.5 — 4 Channel, 5000 W Amplifi er
TD-000434-00-A
*TD-000434-00*

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Summary of Contents for QSC DPA4.2

  • Page 1: User Manual

    DPA Amplifiers User Manual DPA4.2 — 4 Channel, 1600 W Amplifi er DPA4.3 — 4 Channel, 2500 W Amplifi er DPA4.5 — 4 Channel, 5000 W Amplifi er TD-000434-00-A *TD-000434-00*...

  • Page 2: Explanation Of Symbols

    EXPLANATION OF SYMBOLS The term “WARNING!” indicates instructions regarding personal safety. If the instructions are not followed the result may be bodily injury or death. The term “CAUTION!” indicates instructions regarding possible damage to physical equipment. If these instructions are not followed, it may result in damage to the equipment that may not be covered under the warranty.

  • Page 3: Fcc Statement

    The QSC DPA4.2, DPA4.3 and DPA4.5 amplifi ers are in compliance with European Directive 2002/95/EC – Restriction of Hazardous Substances (RoHS). The QSC DPA4.2, DPA4.3 and DPA4.5 amplifi ers are in compliance with “China RoHS” directives. The following chart is provided for product use in China and its territories: QSC DPA4.2, DPA4.3, and DPA4.5 Amplifi...
  • Page 4 Damage to, or loss of any software or data residing on the product is not covered. When providing repair or replacement service, QSC will use reasonable efforts to reinstall the product’s original software confi...

  • Page 5: Package Contents

    The DPA Series amplifi ers use QSC’s third-generation class-D power amp design in combination with a custom power stage utilizing a new output device (4.3 and 4.5 only). In addition, DPA amplifi ers employ the proven PowerLight power supply in conjunction with Power Factor Correction (PFC) (4.3 and 4.5 only) which aligns the current waveform with the AC mains voltage waveform.

  • Page 6: Amplifi Er Front Panel

    Amplifi er Rear Panel NOTE: The DPA4.3, and DPA4.5 models have a different rear panel confi guration than the DPA4.2 rear panel. The difference is that the position of the fan and the eight-pin Euro-style connector and associated information are interchanged.

  • Page 7: Amplifi Er Control

    Amplifi er Control ENTER Button ENTER • Navigates into the menu structure • Enters the edit mode for adjusting parameters OUTPUT MASTER • Confi rms the changes you make, and exits the edit mode. CONTROL MUTE MUTE MUTE MUTE HOME EXIT Button EXIT ENTER...
  • Page 8 DPA Amplifi er Signal Flow Input Settings Output Processing Amp Config. Sensitivity Hi-pass Gain / Lo-pass Meter Gain Mixer Mute Delay Peak Meter Switch Filter Polarity Filter Limiter Sensitivity Hi-pass Gain / Lo-pass Meter Gain Mixer Mute Delay Peak Meter Switch Filter Polarity...

  • Page 9: About Presets

    The DPA Series amplifi ers are designed to be mounted in a standard rack-mount unit. The amplifi ers are 2RU high, the DPA4.3 and DPA4.5 are 381 mm (15 in) deep, the DPA4.2 is 229 mm (9 in) deep. — Figure 8 —...
  • Page 10 2 cm clearance. 1. Use the proper fastening hardware (not included) to secure the amplifi er in the rack. The DPA4.3 and DPA4.5 have four front and four rear mounting tabs. The DPA4.2 has four front mounting tabs. AC Mains WARNING!: When the AC Power is on, there is a potential of having dangerous voltage at the output terminals on the rear of the amplifi...

  • Page 11: Connect The Audio Inputs

    Inputs Connect the Audio Inputs ROUTABLE INPUTS Unbalanced Balanced HEARTBEAT — Figure 10 — — Figure 11 — — Figure 12 — There are four three-pin Euro-style connectors labeled 1 through 4 providing the audio inputs on the DPA Amplifi ers. A single input can be mixed to one or a combination of outputs.
  • Page 12 Use caution not to touch these contacts. Turn off the AC Mains disconnect switch prior to making any connections. IMPORTANT: QSC recommends that you connect jumpers between the output terminals where the terminals are the same points electrically.
  • Page 13 One-Channel Confi gurations F9: ABCD ABCD Parallel F9: ABCD M ABCD The following are electrically the same point T1+, T3+, T5+, and T7+ T2-, T4-, T6-, and T8- — Figure 15 — F8: AB+CD AB Parallel F8: AB+CD Bridged with CD Parallel M AB+CD The following are electrically...
  • Page 14 F4: AB CD AB Parallel F4: AB CD CD Parallel The following are electrically the same point T1+ and T3+ T5+ and T7+ T2- and T4- T6- and t8- — Figure 19 — F7: ABC D ABC Parallel F7: ABC D D Single The following are electrically the same point...
  • Page 15 2. Connect the loudspeaker wiring to the 8-pin Euro-style connector. Refer to Figure 15 thru Figure 23. When combining channels, QSC recommends that you connect jumpers between the electrically same output terminals. Refer to Figure 15 and the WARNING above the fi gure.
  • Page 16 HOME > PRESETS > PRESET WIZARD (ENTER) NOTE: The power levels shown in this procedure are taken from the DPA4.3 unless indicated otherwise. DPA4.2 will show less power and DPA4.5 will show greater power. For complete details refer to the "Specifi...
  • Page 17 Speaker you Scroll to select a Speaker model Output: select. You must select a loudspeaker before To confi rm, press Speaker: QSC AP-5152 ENTER selecting Band and Full Range Filter. Band: Scroll to select (Band, Filter) Default...
  • Page 18 Create New Preset from an Existing Preset To create a preset from an existing preset, recall the preset with the desired output confi guration, modify the Input parameters, Output parameters, then save the preset. In addition, you can save the preset as you are going thru the creation process. Recall a Preset HOME >...
  • Page 19 HOME > INPUTS > INPUT GAIN (ENTER) Step 2 — Set Input Gain Scroll to select (-100 thru 20 dB) Input F1: A B C D To confi rm selection, press ENTER To move to the next input, press Repeat this procedure for remaining input channels Sens Gain (dB)
  • Page 20 HOME > OUTPUTS > MIXER (ENTER) Step 2 — Test - Pink Noise and Tone Generator Scroll to TEST press MIXER Output ENTER F1: A B C D PINK On Source, press 20.0 Hz –20 kHz ENTER Select Tone or Noise press Output Levels ENTER...
  • Page 21 DSP and characteristics of that loudspeaker. You can start by loading a loudspeaker and then make modifi cations and save your new profi le, or you can build the profi le without loading a loudspeaker, and then save it as a new profi le. If you load a QSC loudspeaker, the amplifi er is set for that specifi...
  • Page 22 HOME > OUTPUTS > SPKR PROC > CROSSOVER > HIGH-PASS (or LOW-PASS) (ENTER NOTE: If you select a QSC Loudspeaker, you will see that the high-pass, or low-pass fi lters are LOCKED. QSC has given these loudspeakers specifi c voicings tailored for that loudspeaker that should not be changed. If there is any crossover adjustments applied in these voicings, you will be able to see the applied crossover on the graphs of the Crossover screens.
  • Page 23 HOME > OUTPUTS > SPKR PROC > LIMITER NOTE: If you select a QSC Loudspeaker, you will see that the limiter is LOCKED. QSC has given these loudspeakers specifi c limiter settings tailored for that loudspeaker that should not be changed. If there is a limiter applied in these voicings, you will be able to see the applied limiter on the graph.
  • Page 24 HOME > OUTPUTS > SPKR PROC > LIMITER > ADV NOTE: If you select a QSC Loudspeaker, you will see that the limiter is LOCKED. QSC has given these loudspeakers specifi c limiter settings tailored for that loudspeaker that should not be changed. If there is a limiter applied in these voicings, you will be able to see the applied limiter on the graph.
  • Page 25 Save a Speaker HOME > OUTPUTS > SPKR PROC > SAVE SPKR (ENTER) When you Save a speaker profi le, you are saving all of the Output settings currently active for the channel. The new profi le you save does not need to be Loaded, it is already active.

  • Page 26: Save The Preset

    Save the Preset HOME > PRESETS > PRESET SAVE> SAVE AS (ENTER) After modifying the Inputs and Outputs for all channels, save the current settings as one of the 50 user-defi ned presets (U1: thru U50:). Each of the user presets, by default, is the same as factory preset F1: A B C D, so when you save the preset you are "overwriting" the preset currently in that numbered position.
  • Page 27 Step 1 — Overwrite Preset U1: A B C D To save, press ENTER To exit without saving, press EXIT SAVE To confi rm Save, press ENTER Press ENTER to save preset Utilities HOME > UTILITIES > STATUS (ENTER) The Utilities section provides the following amplifi er information and functionality: Step 1 —...
  • Page 28 When you complete the current password, the "New Password:" is automatically selected. Repeat the procedure for the "New Password:" CONFIRM The default password for all amplifi ers is QSC – all uppercase. Scroll to CONFIRM press ENTER The password can be up to 10 characters long, and contain, A —...
  • Page 29 HOME > UTILITIES > GPI > ENTER NOTE: If you Enable the GPI with nothing connected to the input pin, the GPI performs the selected GPI FUNCTION. In order to undo the result, you must manually reset whatever the GPI FUNCTION was, connect a switch to the input as described below, or you can reverse the GPI HIGH and GPI LOW.
  • Page 30 Step 2 — Setup the GPO (Output) Feature Select ENABLE or DISABLE press UTILITY - GPIO - OUTPUT ENTER Scroll to GPO FUNCTION press GP OUPUT DISABLE ENTER GPO FUNCTION ALL FAULTS Select desired function press GPO FLAG ENTER IMPEDANCE BOUNDARIES Scroll to GPO FLAG press ENTER...
  • Page 31 TD-000434-00-A...

  • Page 32: Supported Loudspeakers

    Supported Loudspeakers Cinema Screen Channel Cinema Surround Loudspeakers Cinema Subwoofers Systems (with X-Curve fi lter) SB-5118 SC-2150 (2150-LF + 2150-HF) SR-8101 SB-5218 SC-413C (LF-4115 + MH-1075C) SR-8200 SB-7118 SC-323C (LF-3215 + MH-1075C) SR-1020 SB-7218 SC-423C (LF-4215 + MH-1075C) SR-1030 SB-15121 SC-423C-8 (LF-4215-8 + MH-1075C) AD-S8T...

  • Page 33: Specifications

    Specifi cations DPA4.2 DPA4.3 DPA4.5 4 Ch. Continuous 8 400 Watts 625 Watts 1150 Watts 4 400 Watts 625 Watts 1250 Watts 2 325 Watts 625 Watts 625 Watts 2 Ch. Continuous 8 800 Watts 1250 Watts 2250 Watts 4...

  • Page 34: Full Power

    Heat Loss Charts Heat losses are the thermal emissions from an amplifi er while it is operating. It comes from dissipated waste power—i.e., real AC power in minus audio power out. Measurements are provided for various loads at idle, 1/8 of average full power, 1/3 of average full power, and full power, with all channels driven simultaneously.
  • Page 35 © 2014 QSC Audio Products, LLC. All rights reserved. QSC and the QSC logo are registered trademarks of QSC Audio Products, LLC in the U.S. Patent and Trademark offi ce and other countries. All other trademarks are the property of their respective owners.

This manual is also suitable for:

Dpa4.5Dpa4.3

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