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New Hiss from Harman/Kardon AVR300

#1
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7/29/09 at 6:02pm
  • Joined: July 2009
  • Post Count: 1
Turned on my 10 year old HK AVR300 the other day and had a terribly loud hiss coming through all 5-speakers. Muted speakers but hiss continued. Tried headphones and sound thru jack was clear. Disconnected all speakers and hiss stopped, listened using headphones and sound thru jack was again clear.

Harman/Kardon AVR300
http://www.audioreview.com/mfr/harman-kardon/a-v-receivers/avr-300/PRD_123882_2718crx.aspx


I'm debating whether to take it into the shop for repair or to look for a replacement. I love the AVR, and don't really want to replace it. $95.00 bucks just to look at it. Any thoughts from the forum on what could be wrong, how much I should expect to pay to fix-it, and whether I should just replace?



Thanks in advance. 

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#2
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8/1/09 at 2:18am
  • Joined: January 2001
  • Post Count: 33
This happened to me like 6-8 years ago. I remember having to change the polarity switch somewhere and also someone suggested that i may have added equipment that is not "shielded". Anyway, I was in the process of moving so I disconnected everything, moved to a new house, reconnected then it disappeared. 

"I just saved a bunch on my car insurance by fleeing the scene of the accident"

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