Question about Sony DAV-SA30 System

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After a while the system starts crackling and eventually sound deteriorates to thundering in speakers

I have had the system for about 2 years. Just recently it has started crackling across all the TV and video channels sometimes as soon as it is swithed on but sometimes the problem comes on after a number of hours. It has been intermitant for about 4 months but has now got progressively worse. It now happens every time. It starts by a bit of faint popping across all the speakers then gets worse by crackling in time with the broadcasted sound until over a minute or two it becomes so distorted that the speakers seem to just thunder. Sometimes switching the function channels is enough to clear it but this can some times lead to total loss of all sound. Otherwise I just switch it off for a while. I have unplugged and replugged all the connections, moved the system away from the other TV devices and changed the scart connections from my other TV. Any ideas?

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Hi, I have exactly the same prob and I belive that it is in the amp module?! I am going to take mine in for repair as my other sony HT amp has just give up the ghost, (STR-DE435), it has a protector prob and is probably not worth repairing, although it is a great amp. If anyone knows the solution to this prob it would be great to hear it!!!

Posted on Jan 05, 2007

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Posted on Jan 02, 2017

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My logitech s-120 speakers crackle very loudly sometimes. At first I thought it was the sound card in my old PC, but when I switched to a brand new Mac computer the problem continued, making me think the...


hi there,
The problem is actually from the speakers themselves. If it's not a year old you might want to bring it back to the store where you purchased it for a warranty repair or replacement.
Sadly the problem is inside the speaker and it could be a loose connection inside. If you're comfortable enough you can try to open the speakers and check inside for any loose wires which cause unstability of sound or for any loosed fittings from the magnet.
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It is likely that the speakers were damaged by someone playing the system at way too high a level.

If the noise sounds like a scraping, then it is the speakers themselves.
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Another possibility is that if you are not useing a Bose amplifier, then your amp may not be capable of properly powering the speakers.

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Speakers have crackling sound


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1) the soundcard (or sound device you have them plugged into)
The best way to test this is to plug in another set of speakers or a headset directly to the sound
device, and listen. if you don;t hear the crackling, than consider that idea scrapped.

2.) speaker wiring/cables. Check the wiring for cracks/frayed spots. Do you get any crackling during/after you move the wires? if there is ANY change, for the better or the worse, than you have your culprit.

3.) the speakers themselves. when the first two options above are exhausted, there's only the insides of the speakers themselves to blame. you might not have seen any cone deterioration- but other things could happen, such as deteriorating wiring, etc.

for new speakers, they are relatively cheap- Here in Canada at least, I can get a new 2.1 set for anywhere from $25-60. Although, I'd strongly recommend any of the Logitech brand speakers- most models have subwoofers with unbelievable bass (for the price) through them. I myself have the more expensive Z-5500 series from them (5.1), and I've been more than impressed.


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