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I've owned my RSP-1068 since July of 2004. My boss and I purchased units at the same time from the same dealer. In general I love it. I paired it with an ATI 1806 Amplifier and everything has been great until just before Christmas when I first noticed a buzzing sound. I say buzz, because I liken it to the sound a Halogen Light transformer makes and not a typical lower frequency hum.
Before anybody says ground loop, let me preface by saying that I checked all interconnects, electrical cords, cable box earthground etc.. and broke the system down piece by piece. With the AMP on and connected to the speakers it is dead silent, no buzz. As soon as I put the Processor on, there is the buzz. Here's the strange thing. The buzz is not constant. After warm up, it seems to disappear, then comes back at some point at a lesser level, but is still there.
My boss has the same problem, except his is much louder than mine. On his system if he takes the 1068 out of the system and hooks up a Krell Two Channel Pre-Amp he gets no buzz at all.
I run everything through a Monster HTS-2600 power center, and have tried running individual pieces separately to make sure it is nothing with that. I have also plugged the RSP-1068 into dedicated outlet on its own with the same results. One thing of note is that my processor seems to run hot. I have plenty of ventilation and space. My processor, specifically the front left corner when looking at the front head on, is hot. I believe this is where the power supply is. My amp is cool to the touch whereas the Rotel is not.
Is there anything I am missing or anything else to check or do before contacting Rotel Tech Support and/or my dealer?
Any ideas are appreciated. Thanks in advance.
Phil C.
Before anybody says ground loop, let me preface by saying that I checked all interconnects, electrical cords, cable box earthground etc.. and broke the system down piece by piece. With the AMP on and connected to the speakers it is dead silent, no buzz. As soon as I put the Processor on, there is the buzz. Here's the strange thing. The buzz is not constant. After warm up, it seems to disappear, then comes back at some point at a lesser level, but is still there.
My boss has the same problem, except his is much louder than mine. On his system if he takes the 1068 out of the system and hooks up a Krell Two Channel Pre-Amp he gets no buzz at all.
I run everything through a Monster HTS-2600 power center, and have tried running individual pieces separately to make sure it is nothing with that. I have also plugged the RSP-1068 into dedicated outlet on its own with the same results. One thing of note is that my processor seems to run hot. I have plenty of ventilation and space. My processor, specifically the front left corner when looking at the front head on, is hot. I believe this is where the power supply is. My amp is cool to the touch whereas the Rotel is not.
Is there anything I am missing or anything else to check or do before contacting Rotel Tech Support and/or my dealer?
Any ideas are appreciated. Thanks in advance.
Phil C.
ops: . It was not unitl I broke things down and went piece by piece again that I discovered the problem. Also, my problem started only a month ago after having the system in place since July without a hint of any hum or buzz. Previous to that, I never had a hum or buzz using the same cable feed in my old system. I hope you can see why, for me, it was kind of a mystery especially after verifying the earthground. What I ended up doing was grounding the splitter to the gang box and the hum disappeared.
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