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Alfredo Diosdado
Alfredo Diosdado Posted on Jan 20, 2019
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Nightclub qsc speaker won't turn on and if it does it stays on for a short while then turns off

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Anonymous

  • 148 Answers
  • Posted on Sep 08, 2009

SOURCE: QSC ISA 280 Stereo Power Amp stopped working

This is a very precise questions as QSC amp are pretty rare and high end electronics equipment. There is no way getting an answer other than getting the amp at a sound shop for repair, wich might go for a visit at QSC anyway. From a sound shop repairman...

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Glen

  • 225 Answers
  • Posted on Nov 01, 2012

SOURCE: My qsc plx 3402 will not power up

Most likely...shorted speaker wires, defective speakers or too many cabinets wired together can blow a amplifier channel in an instant. Manufacturers use to mount protection fuses on the exterior of equipment but people started replacing 3 amp with 25 amp automobile fuses and destroying internal circuits. You could pop the cover to look for a power supply protection fuse (same value replacement please) BUT be careful as there are sustained voltages after the unit is disconnected from the AC outlet that hold enough power to make this type work dangerous. I recommend sending it to a professional repair shop for a checkout and estimate.

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My QSC RMX2450 starts with red clip lights on. It turns to green only when there is input signal. Why is this
The red clip lights on the QSC RMX2450 indicate that the amplifier is receiving a signal that is too strong and could cause distortion or damage to the speakers. The green lights indicate that the signal is within a safe range. When there is no input signal, the amplifier defaults to the red clip lights as a precautionary measure. Once a signal is received and it is within the safe range, the lights turn green. This is a normal behavior for this amplifier.
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Please switch to another outlet. If the speakers continue to fail, please check the cord for any damage that might be leading to this issue. If that fails, then we can examine the documentation of the product to identify and use any troubleshooting steps based light status results that you've mentioned in the description. Otherwise, you can also reach out to QSC by calling them at (213) 748-5200.

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SO I am going to give you more of a signal layout from the turntables (or whatever you use to DJ) to the speakers.
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QSC ISA 280 Stereo Power Amp stopped working
This is a very precise questions as QSC amp are pretty rare and high end electronics equipment. There is no way getting an answer other than getting the amp at a sound shop for repair, wich might go for a visit at QSC anyway. From a sound shop repairman...
Read full answer
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