Question about Sony STR-DE445 Receiver

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Speakers pop and rear speakers cut out of surround sound

I have the Sony STR-DE445 surround sound receiver. All works fine for about 3 Minutes and then there is a very loud pop from the speakers and the two rear effect speakers cut off. If I shut it off and try again it does the same thing each time. The remaining speakers work fine. Any ideas ?

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  • Anonymous Jan 25, 2009

    It's time to get a new one Mine just stared to do this last month it would cost me 400 bucks to get it fixed so I went on line and look at getting a new one I now have a STR_DG820 and I love it

  • carp568 Apr 27, 2009

    hey i have the same receiver (str-de445) and it turns on, but right before its about to produce sound, it goes on protect mode. is it because the fuse is too big? the fuse is a 5A 125V, and the original fuse is supposed to be a 2.5A 125V



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your problem is a bad solder connection of the relay linked to the lautspeaker sockets. I had the same problem and googled for the solution. Since I resoldered the pins everything is fine. That problem is well known and happens to a lot of Sony receivers.

I can send you a link with a detailed how-to-do solution with pictures, however it's written in german language. But you can use some online translators.

Here is the link:

Ralf (from Germany)

Posted on Feb 15, 2009

  • Jager Mitchell
    Jager Mitchell Nov 14, 2014

    Danke sch?n! The only solution to this question on this site that worked. Luckily I took 4 years of German ;)



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