Qsc-audio SRA 2422 Instrukcja Użytkownika

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Strona 1 - *TD-000107-00*

1TD-000107-00 rev.A*TD-000107-00* Studio Reference AmplifierUser ManualSRASRASRA122224223622

Strona 2 - & EXPLANATION OF SYMBOLS

10SETUP- Removing the Gain Control Security CoverGain Control Security CoverThe amplifier is shipped with its gain controls attheir maximum setting of

Strona 3 - TABLE OF CONTENTS

11SETUP- Installing the Gain Control Security CoverInstalling the Gain Control Security Cover1- Slide the cover into the front panel recess.Push it fu

Strona 4 - General Overview

12SETUP- Cooling RequirementsThe amplifier has a rear-mounted variable-speedfan. Speed is determined by the temperature ofthe amplifier’s internal he

Strona 5 - INTRODUCTION- Illustrations

13SETUP- AC Power RequirementsAC PowerVerify operating voltage before pluggingamplifier into AC mains. Make sure the ACmains voltage is the same as sp

Strona 6 - SETUP- Stand-alone Mounting

14SETUP- Operating Mode SelectionStereo ModeMode SwitchesThe mode switches are located on the rear panel.The switches are recessed to prevent accident

Strona 7 - Rack Mounting

15Biamp Applications- Use Stereo ModeStereo Mode Notes:•To operate in stereo mode, set switches 4,5, 6, and 7 to the left position.•Input connections:

Strona 8 - SETUP- Rack Mounting

16Parallel ModeSETUP- Operating Mode Selection: ParallelIn parallel mode, channel 1 andchannel 2 XLR inputs are connectedin parallel. Applying an inpu

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17Bridge ModeIn bridge mode, both outputchannels are interconnected intoone, higher power output. Theresult is one output with about 4times the peak p

Strona 10 - (continued, following page)

18SETUP- Clip LimiterCLIP LIMITER ON: To turn the limiter on, slide the switch to the right (Sw.1: Ch.1, Sw.10: Ch.2).CLIP LIMITER OFF: To turn the li

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19SETUP- Low Frequency FilterChannel 1’s low frequency filter is operated byswitches 2 and 3. Channel 2’s filter is operatedby switches 8 and 9.FILTER

Strona 12 - SETUP- Cooling Requirements

2© Copyright 2002, QSC Audio Products, Inc.QSC® is a registered trademark of QSC Audio Products, Inc.“QSC” and the QSC logo are registered with the U.

Strona 13 - SETUP- AC Power Requirements

20Audio Input ConnectionsCONNECTIONS- Inputs, General InformationInput connections to the SRA can be made withbalanced XLR connectors for all operatin

Strona 14 - Operating Mode Selection

21XLR Connector PinoutCONNECTIONS- Inputs: XLR and RCA Connector PinoutsRCA (phono plug) Connector PinoutBalancedUnbalancedpin 2pins 1 and 3Jumperpin

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22Connecting the Outputs to the LoudspeakersThere are two basic speaker connectionconfigurations for the SRA amplifier. Stereoand parallel modes use t

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23CONNECTIONS- Outputs: Binding PostsUsing the Binding PostsThe binding posts support several connection methods;banana plugs, spade lugs, or direct w

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24Stereo and Parallel Mode outputconnections using binding postsDo not use less than 4-ohm loads inbridge mode! Note polarity of con-nections for bri

Strona 18 - SETUP- Clip Limiter

25CONNECTIONS- Outputs: Speakon connectorsSpeakon OutputsThe Speakon connectors offer quick, reliable connection and disconnection of the speakers.Alt

Strona 19 - SETUP- Low Frequency Filter

26CONNECTIONS- Outputs: Speakon connectorsStereo or Parallel ModesStereo and Parallel modesuse one cable for eachchannel. Each cable con-nects to its

Strona 20 - Inputs, General Information

27CONNECTIONS- Outputs: Speakon Biamp ApplicationBiamp OperationIn biamp, one channel is used for lows, while theother channel is used for highs. It r

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28CONNECTIONS- Remote on/off (remote trigger)Remote turn-on and turn-off capability is provided by the remotetrigger jacks on the rear panel. Remote t

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29CONNECTIONS- Remote on/off (remote trigger) 12 VDC Type12 Volt DC Remote TriggerFor 12 Volt DC remote triggeroperation, use a mono (2terminal) 3.5 m

Strona 23 - Outputs: Binding Posts

3INTRODUCTIONGeneral Overview...4Illustrations...

Strona 24

30CONNECTIONS- Remote on/off (remote trigger) Contact Closure Type12 Volt DC Remote TriggerFor contact closure remotetrigger operation, use stereo(3 t

Strona 25 - Outputs: Speakon connectors

31CONNECTIONS- DataPortDataPort is located on the left side of the rear panel.A typical DataPort application shown with a program-mable QSC DSP-4 sig

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32LED indicators.USE- Front Panel Controls and IndicatorsGain ControlsA gain control adjustment is provided for eachchannel. The voltage gain of the a

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33APPLICATION EXAMPLE- 7.1 Surround7.1 Surround ApplicationThe block diagram, atright, shows how SRAamplifiers might beconnected in a 7.1home theater

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34TROUBLESHOOTINGThe amplifier “cuts-out” when I really crank it up (intermittent operation)-• Make sure the AC power source is rated for the required

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35TROUBLESHOOTINGI am using the amp for a subwoofer application and it sounds “rubbery”, what’s up?-• Verify that the Clip Limiters are OFF. Why? The

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36SRA1222 SRA2422 SRA3622Output Power:(watts per channel, stereo/parallel mode)8 ohms, 20Hz to 20kHz, 0.03% THD 200 425 7254 ohms, 20Hz to 20kHz, 0.05

Strona 31 - CONNECTIONS- DataPort

37SPECIFICATIONS- SRA SeriesSpecifications subject to change without notice!ALL MODELSVoltage gain: 28× (29 dB)Controls: Front- AC switch, Recessed Ch

Strona 32 - LED indicators

38DisclaimerQSC Audio Products, Inc. is not liable for any damage to speakers, or any other equipment that is caused bynegligence or improper installa

Strona 34 - TROUBLESHOOTING

4INTRODUCTION- General OverviewCongratulations on your purchase of the SRA (Studio Reference Amplifier)Series power amplifier. To helpyou obtain the

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40QSC Audio Products, Inc. 1675 MacArthur Boulevard Costa Mesa, California 92626 USA“QSC” and the QSC logo are registered with the U.S. Patent

Strona 36 - SPECIFICATIONS- SRA Series

5INTRODUCTION- IllustrationsFront Panel (gain control security cover removed)1- Power switch2- Channel 1 gain control3- Power “on” indicatorRear Panel

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6The SRA amplifier is highly durable and carefully packaged. We recommend you inspect the unit carefullyafter removing it from the packaging, as occas

Strona 38 - WARRANTY

7Rack Mounting1- A #2 size cross point (Phillips) screwdriver.2- The rack mount ears included with you SRA amplifier.To attach the rack mounting ears,

Strona 39

8SETUP- Rack MountingDimensions for rack mount installations.Note: Some dimensions are taken fromthe front surface of the rack rail.Continued, from pr

Strona 40

9SETUP- Supporting the rear of the amplifierIf transporting the amplifier in a loaded equipment rack, support the rear of the amplifier using rearrack

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