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Jerry Weisman Posted on Apr 01, 2016

Makes large thumping/chirping noise when turned on. Its not even connected to the receiver

1 Answer

Lomitus

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  • Contributor 9 Answers
  • Posted on Apr 04, 2016
Lomitus
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Joined: Jun 21, 2009
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Since you have said the speakers make this sound when "turned on", I'm going to assume there's some form of power amplifier attached (internal, external or otherwise). Based on the minimal information provided here, this simply sounds like the normal reaction of a speaker when the amplifier is turned on. In short, an audio speaker is a type of "transducer" and when power is applied (thru some form of amplifier), the cone reacts to the power surge and causes a thump, pop or other noise. Turn on your TV for example and you'll usually hear a small pop from the speakers...and a larger/more powerful amplifier is likely to make a louder noise. Without further information, in most cases this is quite normal.

Assuming there is an external power amplifier, my advice would be to turn the volume on the amp (regardless of whether there's a receiver connected) to 0 before turning the power on. If it still makes such a noise, it's possible the volume control of the amp may require cleaning.

Good Luck!

2 Related Answers

Anonymous

  • 382 Answers
  • Posted on Jan 22, 2010

SOURCE: makes thumping noise without input from receiver

So no wires plugged into it at all? Sounds like a cold solder joint on a board or a bad connection inside the amplifier.

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Anonymous

  • 181 Answers
  • Posted on Feb 03, 2010

SOURCE: My subwoofer is making a regular thumping noise

if you can replace the subwoofer, do it! Unless, your whole sound system is based on it. problem inside of subwoofer's internal amp. It's an active subwoofer, must be replaced with same kind. otherwise, take unit to local repair shop for diagnostics and repair. it might be some capacitors gone bad, may be IC chip is at fault. anyway, not do it yourself, unless you're an electronics expert.
good luck,
Alex's Tv Service,
215-806-5980.

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http://howtobyme.blogspot.com/2011/12/car-makes-whining-noise-like-driving-on.html

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here are few components that can cause such problem.Its advisable to click the link below and follow the troubleshooting to correct the problem.
Engine makes noise? http://howtobyme.blogspot.com/2011/12/engine-makes-noise-and-cooling-fan-belt.html

------------
Chirping sound coming from engine? http://technoanswers.blogspot.in/2012/01/chirping-sound-coming-from-engine.html
--------- Vehicle making Clunk Thump Thud noise? http://howtobyme.blogspot.in/2012/03/vehicle-making-clunk-thump-thud-noise.html

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Car Engine Overhaul Tips? http://vwrepairhelp.blogspot.com/2011/11/car-engine-overhaul-tips.html

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HOW TO PERFORM A BASIC ENGINE TUNE UP-OIL CHANGE
http://schematicsdiagram.blogspot.com/2011/08/how-to-perform-basic-engine-tune-up-oil.html


---------
Rattle noise from engine? http://whatisbyme.blogspot.in/2012/05/2005-toyota-corolla-rattle-noise-from.html

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Makes thumping noise without input from receiver

So no wires plugged into it at all? Sounds like a cold solder joint on a board or a bad connection inside the amplifier.
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Washer makes loud, thumping noises during spin cycle.

support bracket that supports the tub is breaking. stick your hand inside and push up and down and see if its coming apart. if u look at it when it runs does it wobble?(the tub) if not take a look at the pulley on the back and see if its wobbly.
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