rfprice

Responses from rfprice

Rega Osiris, Isis updates
Glad to hear you're enjoying the pair. I'm also leaning toward the valve option in the Isis.    My dealer is also a nice guy but he's in the business of making sales. I'm also not sure he's completely aware of everything that's happening with th... 
Component grounding
OK, I can't post the link. Anyway, it doesn't say more than I just said.   
Component grounding
I wish I could post a photo of what I mean. If you follow this link to page 7, it talks about a ground wire running from a grounding block on the floor of the chassis to a screw on the side of the top cover. Before you can do anything internally, ... 
Component grounding
@atmasphere -- That's starting to seem to me like a likely explanation also. Plus the fact that the hum begins when the interconnects are inserted, not when everything is simply powered on. But I really didn't do anything to the DAC except switch ... 
Component grounding
@williewonka -- Thanks for all your advice thus far. It's much appreciated.   The neutral collar is the outer metallic 'shield', correct? If so, I did run a wire from the ground post on the Shunyata to the collar of an RCA of the integrated. No ... 
Component grounding
I also tried connecting the integrated and DAC to a single zone. No difference.    So perhaps the integrated has a bad chassis ground?   
Component grounding
This got me thinking. Several months ago I opened the DAC to try a specialty fuse. To free the cover, you have to disconnect the chassis ground.   --As I wrote earlier, when I disengaged the preamp section on the integrated and engaged the outpu... 
Component grounding
@williewonka  -- Exactly. When I unplugged the amp from the Shunyata (using the non-modified power cord) and plugged it into the free receptacle on the wall duplex (the Shunyata occupying the other receptacle) the hum disappeared. So that would su... 
Component grounding
@atmasphere  -- No no, I meant the preamp section of the integrated. It has a feature that let's you bypass the preamp section and use the output control on the DAC instead. When I did this, the hum came back. I don't know what that means, but you... 
Component grounding
@atmasphere  -- Thanks for this. You're right, it's complicated. (You are also right that the grounding post made no difference.)   I'm starting to wonder if the problem has more to do with the DAC. As I wrote above, when I disengaged the preamp... 
Component grounding
@williewonka  -- I tried the RCA terminal solution but it had no effect.     
Component grounding
@williewonka  -- Yes I know it's not an ideal solution.I will try your suggestion to run the wire to the RCA terminal.  
Component grounding
@williewonka -- Thanks, Steve, I'll try that. The amp has a three-prong connection. Defeating the ground prong with the cheater plug made the hum go away.Something funny happened yesterday. The integrated has a function that allows you to bypass t... 
Component grounding
Thanks for the helpful input. I introduced a 'new' integrated into my system and a hum appeared. In fact, I had owned this same model integrated about 10 years ago and seem to recall a hum at that time too. My tech friends assert that there are no... 
Wywires platinum or Wireworld Silver Eclipse, speaker cable
Truthfully, the Silver or Eclipse series is more realistic for my budget, and I've been told that they are quite close to their most expensive siblings. That's a good idea, to ask Wywires for a demo.