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why is my amp cutting out , some help please

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hyettdman
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RE: why is my amp cutting out , some help please

It just strange that it cuts out any time it feels like it. Like i said could be 5/ 10 /30 mins or over an hour. If it was the speaker cables touching or something around that area i would hear a buzzing or crackling or something i would of thought. Can an amplifier cut out if the audio interconnects your using - interconnects for stereo music use, have been damaged etc.

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hyettdman
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RE: why is my amp cutting out , some help please

just a return reply to john duncan . I'm using banana plugs on all of the speaker terminals and speakers.But the other day i took them of the back of the rear speakers so they are now bare wire, only on the back speakers though not the amp.

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eggontoast
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RE: why is my amp cutting out , some help please

hyettdman wrote:
Can an amplifier cut out if the audio interconnects your using - interconnects for stereo music use, have been damaged etc.
They can indeed. If you have intermittent connections on the input of an amplifier it can cause bursts of instability (too High frequency for you to hear). These bursts are stressful for the amplifier as it will clip at full power and cause it to cut out or blow up, which ever comes first.

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cheyworth
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RE: why is my amp cutting out , some help please

If you have a day or two spare then remove all the cables from the amp and leave on for a couple of hours, (assuming it doesn't trip off) plug in the front tree and run for a couple of hours, (again if it doedn't trip) plug in the surround speakers and run for a couple of hours.

 

If it does trip at some point remove the cables again and then go one speaker at a time.

 

Chris

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John Duncan
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RE: why is my amp cutting out , some help please

Good idea actually.  From what you describe it does sound like the rears are more likely the cause of problems, take them out and run with just the front three and see if the problem goes away.

If it does, then the rears are the problem.  If that's the case, do the reconnection stuff we've discussed already, and if it's still a problem then -as already mentioned - it could be the wires or the speakers.  Difficult to try 'new' speaker cable with such long lengths but it might be worthwhile trying the rears with long runs of cheap two-core electrical cable to rule out an internal short on one of the speaker cable lengths.  If that still doesn't work, you might be stuck with taking the back panels off the rears and checking for internal shorts there; for example, my 9.1s have internal connectors that can loosen and rotate internally, touching and causing a short.

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hyettdman
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RE: why is my amp cutting out , some help please

eggontoast wrote:

hyettdman wrote:
Can an amplifier cut out if the audio interconnects your using - interconnects for stereo music use, have been damaged etc.
They can indeed. If you have intermittent connections on the input of an amplifier it can cause bursts of instability (too High frequency for you to hear). These bursts are stressful for the amplifier as it will clip at full power and cause it to cut out or blow up, which ever comes first.

I have'nt had time to pull the amp out and do some of the tests suggested. But i have removed the stereo innterconnect from my denon dbp-2012 bluray player which is running to my amp.which i use for music. When i've previously pulled the amp out i've accidently bent the cable a few times or more, forgetting to remove it. After removing it i played the amp with a film and i had it on for about an hour, it did'nt seem to cut out. But like i've said it can cut out at any time. I was trying to think what i had last connected to the amp before the problem started, as i've only just got the denon 2012 bluray player. That was when i had to pull the amp out AGAIN!

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Bigredone
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RE: why is my amp cutting out , some help please

Had a similar problem with my amp and it ended up being a defective HDMI cable.

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