Has anyone replaced tubes in Aesthetix Rhea ?


I have developed a high pitched hiss from the stock Sovteks which came with my unit. I believe its at least two or more of the 12ax7s which are in the first input gain stage as I hear it more or less equally out of both channels. I was wondering if any Rhea owners have rolled the tubes in their units and, if so, what prompted the swap and what success you have met with.
128x128stew3859
Stew,

What does the manual say about plugging into a power regenerator? I know that the Io manual specifically warns against plugging into any kind of AC conditioner or regenerator and says to plug directly into the wall.

May not be true for the Rhea, but it's a thought.
I wouldn't assume the power regenerator eliminates the possibility of interference from some other electrical equipment. If I were you, I'd still explore the possibility.

I agree it seems unlikely, but it is possible that some component within the Rhea is failing and causing intermittant problems (e.g., some component within the power regulation circuitry). If replacing the tubes does not resolve this, I'd recommend contacting Jim White at Aesthetix directly to see if he has any ideas.
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Also... I don't know what an RPTV is, but if it's a TV, that could be causing tube interference too if it's turned on?

Patrick
Some time ago I had a problem with a socalled "dimmer" from a strong light in my living room.
Depending how "close" it was, the more hum and buzz I had.
Patrickamory, I had earlier spoke with Jim White about the power regenerator and he simply suggested I try listening to the unit plugged directly into the wall because of the size of the transformer. I do not have it plugged into one of the regenerated ports and, in any event, I tried to go directly into the wall, but it did not solve the problem. Also, the Rear Projection TV does not seem to have any effect on the unit. The other night when I had friends over, the TV stayed off. I intend I calling Jim White if the replacement tubes don't do the trick.