Question about Gem Sound EXA1955 Amplifier

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The amplifier clicks and shuts off the music. Then displays a fault. Gem sounds exa 1955 extreme series

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  • Scott Frye
    Scott Frye Aug 26, 2010

    Hi....
    How long is the amp on when it does this?
    Are both output connected to good speakers?

    Thanks

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Posted on Jan 02, 2017

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marsrover
  • 682 Answers

SOURCE: gem sound amplifier #exa 1005

please disconnect your speaker from amp first-if fault goen connect your speaker one by one until you find the bad one-check the cable first and change it with new one and then change the speaker-if the fault still you will have a problem in your amp itself.

Posted on Jul 13, 2008

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marsrover
  • 682 Answers

SOURCE: gem sound karaoke amplifier #exa1005

please confirm from your speakers cables in good condition and from your speakers.make maintenance to your amp by air blower-clean air filter-keep good ventilation around.after cleaning and good ventilation make test with any media while you are connecting one speaker only and then connect the other one.

Posted on Jul 21, 2008

petraman7
  • 1175 Answers

SOURCE: gem sound exa 3950 amp

Hi...
If it's a straight-up power switch then it will need to be replaced if it works off a relay then the relay is gone.

website

http://www.gemsound.com/contact.html#


Posted on Mar 24, 2009

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1 Answer

Gemsound pa 1005 exa keeps shutting off


I Think that something like a transistor is getting hot and then shutting down. Exploring inside might solve the problem of what's getting really hot. You could even get some Servisol Freeze Spray, and wait for it to go off then spray it on the suspected part. That will cool it down and it should start up again. If it does come on, that part will have to be replaced.

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I dont know how to connect my gem sound trf152 speakers


Looks like it takes regular home theatre speaker wire. If this is a powered speaker (like a JBL eon g2), then all you need is a passive mixer, and connect the speakers to the mixer. If this is not a powered (amplified) speaker, then you will need an amplifier to boost the sound source and drive the speakers, so you would connect the mixer to the amplifier, then the amp outs to the speakers.

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1 Answer

Fault lights on


It is possible that the amplifier had encountered a fault with a higher current drain which had triggered it to a protection fault condition. The fault can be with your output drivers. Please check for short on the outputs fitted for both the channels. Use a meter after disconnecting to check for short in the drivers. Disconnect the positive and negative voltages to the output and see if the protect changes. Even a fault in the preamp stages that drives in high current into the output can shut the Amplifier. Sometimes this can be a noise which can be a HUM or HISS before the protect works. Faulty capacitors in these circuits also can cause similar issues and needs close observation.You need to confirm and replace the specific stages or outputs. If not there can be issues in the mother board. Maybe the protect circuit by itself is shutting off due to a faulty bias or there is a leak in any voltage/current sensing circuit. Also disconnect the speakers and test, if the amplifier comes out of the protect mode then check for short on the speakers.

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1 Answer

Gem sound exa 3950 amp


Hi...
If it's a straight-up power switch then it will need to be replaced if it works off a relay then the relay is gone.

website

http://www.gemsound.com/contact.html#


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Dc problem in amplifier (short circuit) needs to be serviced

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1 Answer

Gem Sound clipping problem


First of all the EXA-3940 is rated at 350watts per channel in to 8 ohms. The 1400 watts is bridged into a 4 ohm load. Second, the speakers can handle 1000Wats peak with an average of 600 continuous (i'm guessing). That tells me that the amp is underpowered for the speakers. The sensitivity of the amp is such that the mixer is overdriving the input stage. That is what is causing the clipping. If you are looking for more volume, you are probably better off purchasing another amp and running them in bridge mode, 1 per speaker cab. Be careful though, not to overdrive the speaker cabinets either.

Dan

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1 Answer

Gem sound amplifier #exa 1005


please disconnect your speaker from amp first-if fault goen connect your speaker one by one until you find the bad one-check the cable first and change it with new one and then change the speaker-if the fault still you will have a problem in your amp itself.

Jul 06, 2008 | Audio Players & Recorders

1 Answer

Gem sound karaoke amplifier #exa1005


please confirm from your speakers cables in good condition and from your speakers.make maintenance to your amp by air blower-clean air filter-keep good ventilation around.after cleaning and good ventilation make test with any media while you are connecting one speaker only and then connect the other one.

Jul 06, 2008 | Gem Sound GemSound PA-585 2-Channel...

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