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DUAL POWER AMPLIFIER
TABLE OF CONTENTS
1. IMPORTANT SAFETY INSTRUCTIONS ........................................................................................ 2
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4. NOMENCLATURE AND FUNCTIONS ............................................................................................ 5
5. CONNECTIONS .............................................................................................................................. 7
6. SYSTEM CONNECTION CASES .................................................................................................... 8
7. THERMAL DISSIPATION ............................................................................................................... 9
8. POWER LEVEL ADJUSTMENT ......................................................................................................10
9. TROUBLESHOOTING .................................................................................................................... 11
10. SPECIFICATIONS ...........................................................................................................................12
11. DIMENSIONAL DIAGRAM ...............................................................................................................12
Thank you for purchasing TOA's Dual Power Amplifier.
Please carefully follow the instructions in this manual to ensure long, trouble-free use of your equipment.
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OPERATING INSTRUCTIONS
DA-1250D
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Summary of Contents for Toa DA-1250D-AS
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Page 1: Table Of Contents
8. POWER LEVEL ADJUSTMENT ......................10 9. TROUBLESHOOTING ........................11 10. SPECIFICATIONS ...........................12 11. DIMENSIONAL DIAGRAM .......................12 Thank you for purchasing TOA's Dual Power Amplifier. Please carefully follow the instructions in this manual to ensure long, trouble-free use of your equipment. -
Page 2: Important Safety Instructions
1. IMPORTANT SAFETY INSTRUCTIONS Read these instructions. Keep these instructions. Heed all warnings. Follow all instructions. Do not use this apparatus near water. Clean only with dry cloth. Do not block any ventilation openings. Install in accordance with the manufacturer's instructions. - Page 3 Should the following irregularity be found during use, immediately switch off the power, disconnect the power supply plug from the AC outlet and contact your nearest TOA dealer. Make no further attempt to operate the unit in this condition as this may cause fire or electric shock.
- Page 4 Clean the unit regularly Contact your TOA dealer as to the cleaning. If dust is allowed to accumulate in the unit over a long period of time, a fire or damage to the unit may result.
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Page 5: General Description
3. GENERAL DESCRIPTION The DA-1250D is 2-Channel Digital Power Amplifier featuring ligtweight, compact and high power output. I t delivers 1250W x 2 channels (4 output). It can be mounted an EIA standard equipment rack (2 unit size). 4. NOMENCLATURE AND FUNCTIONS [Front] ③... - Page 6 [Rear] 6. Socket with fuse Connects to power source with AC power supply cord. The Standard Voltage : AC 100 ~ 240V. Dissipation Power : 1100W. Fuse ratings : T12AL 250V. 7. Fan 8. Speaker output terminal Speaker output, Speakon ( NL4 ) terminal. Connects to speakers.
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Page 7: Connections
5. CONNECTIONS [Cable end treatment] NOTES: The quality of your soldering is very important virtual welding or soldering errors, Would be likely to affect the normal use or even failure. 20mm 0.8” 0.3” BLACK [Inputs] Signal input Sensitivity selector switch INPUT Balanced male XLR Mode... -
Page 8: System Connection Cases
6. SYSTEM CONNECTION CASES Speaker Signal source Connection cases Bridge mode n.c. BLACK n.c. Parallel mode BLACK BLACK Stereo mode BLACK BLACK BLACK n.c. n.c. -
Page 9: Thermal Dissipation
7. THERMAL DISSIPATION Stack installation To ensure the cooling environment, please meet the following condition. NOTES: The ambient temperature should be lower than 35℃ while running the amplifier. NOTES: In order to have a good heat dissipation condition for amplifier please clean the filter after you finish your install, because the dust in filter will stop the air vent,... -
Page 10: Power Level Adjustment
8. POWER LEVEL ADJUSTMENT Procedure P ower on NOTES: Source Sound console Peripheral devices Power Amplifier For high power system, the Power-on order is very important,not in the order is Power off likely to damage the Power Level Adjustment equipment.Therefor we suggest that you use the Power amplifier should be in the condition of no load in the following sequence power device. -
Page 11: Troubleshooting
9. TROUBLESHOOTING After powered without any response in very high SPL they have distortion you should Measure the outlet with a multimeter to check if take care of them and reduce the output to the there is power available and when no multimeter, right position. -
Page 12: Specifications
10. SPECIFICATIONS Power Source 100 - 240V AC, 50/60 Hz Amplification System Class D Power Consumption Input CH1-2 : 20kΩ ( balanced ) / 10kΩ XLR-F connector Output LINK CH1-2 : XLR-M connector SPEAKER 1-2 : 2 channels : 700Wx2 (8Ω ,1250Wx2 (4Ω)* 1 channels(BRIDGE) : 2500Wx1 (8Ω)* NL4 SPEAKON connector...
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