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Summary of Contents for Redback A 4304A
- Page 1 PUBLIC ADDRESS SYSTEM A 4304A 2X60W CLASS H POWER AMPLIFIER A 4304A 2X60W CLASS H POWER AMPLIFIER Please follow the instructions in this manual to obtain the optimum results from this unit. We also recommend that you keep this manual handy for future reference.
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Page 2: Table Of Contents
TABLE OF CONTENTS 1. SAFETY PRECAUTIONS ..................3 PRODUCT DESCRIPTION ..................5 3. FEATURES .......................5 FRONT AND REAR PANEL FUNCTIONS .............6 5. OPERATION ......................7 TROUBLESHOOTING .....................9 7. APPLICATIONS ..................... 10 8.BLOCK DIAGRAM ....................11 9.SPECIFICATIONS ....................12... -
Page 3: Safety Precautions
1. SAFETY PRECAUTIONS Be sure to read the instructions in this section carefully before use. Make sure to observe the instructions in this manual as the conventions of safety symbols and messages regarded as very important precautions are included. We also recommend you keep this instruction manual handy for future reference. Safety Symbol and Message Conventions Safety symbols and messages described below are used in this manual to prevent bodily injury and property damage which could result from mishandling. - Page 4 SAFETY PRECAUTIONS When the Unit is in Use When Installing the Unit Do not place heavy objects on the unit as this may Never plug in nor remove the power supply plug cause it to fall or break which may result in with wet hands, as doing so may cause electric personal injury and/or...
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Page 5: Product Description
2. PRODUCT DESCRIPTION This power amplifier combine of high-performance switching power supply and H class amplifier, adopts 1U cabinet design,with the features of high efficiency,light weight and nice appearance. 3. FEATURES 1.Standard cabinet design( ),with sophisticated technology,greatly show the high-grade temperament. -
Page 6: Front And Rear Panel Functions
4. FRONT AND REAR PANEL FUNCTIONS A 4304A 2X60W CLASS H POWER AMPLIFIER 1 234 57 1. Volume Gain Size Adjustment Knob: Adjusts the sound output to the speaker. Turn right Turn the volume up, and turn it to the left to mute it. -
Page 7: Operation
5. OPERATION 1.Connect the speakers: ①When the 100V and 70V selector switch to ②When the 100V and 70V selector switch to 70V position, as shown below: 100V position, as shown below: SPK+ SPK+ SPK- SPK- Maximum output voltage: 70V Maximum output voltage: 100V Note: 1. - Page 8 5. OPERATION 4.Connecting Microphones: ①Turning the volume knob to the left for minimum volume. Plug the microphone into the micro- phone connector of the pre-amplifier, and then connect the OUTPUT of the pre-amplifier into the Line INPUT connector on the rear panel of the amplifier - CH1 or CH2. ②Turning the volume knob in the right position.
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Page 9: Troubleshooting
6. TROUBLESHOOTING Failure phenomena Failure cause 1 Power line is cut off 1. Power switch is not opened 2. The protection function of the equipment is not activated 1. The power switch is not opened or the power plug is bad contacted. -
Page 10: Applications
7. APPLICATIONS REAR PANEL CONNECTIONS... -
Page 11: Block Diagram
8. BLOCK DIAGRAM INPUTS-balanced OUTPUT- balanced Line INPUTS-balanced OUTPUT- balanced Line... -
Page 12: Specifications
9. SPECIFICATIONS A 4304A Model 2×60W Rated power output 70V/100V Speaker output ±385mV/10KΩ, balance XLR Input sensitivity & input impedance 775mV/10KΩ, balanced TRS input terminals Output sensitivity & ±385mV/10KΩ, balance XLR output source impedance 775mV/10KΩ,balanced TRS terminals output 80Hz-16KHz(+1dB, -3dB) Frequency response ≤1%... - Page 13 PUBLIC ADDRESS SYSTEM VersionV0.3...
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