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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.
stew3859

Showing 3 responses by dan_ed

dan_ed
2,451 posts
 
I had what might be a similar situation with my Rhea. From time to time I would hear a short duration hissing or rushing sound, but only from the right side. Of course my first reaction was to suspect tubes. During one night of experimentation I changed from XLO to Quatro-fil interconnects between my Rhea and pre just to see how this might change the sound from my turntable. I have not heard the noise since and it has been almost a month. Kind of interesting but probably not what you're experiencing.

I do have some Mullards on my list of tweaks to buy in the coming year.
dan_ed
2,451 posts
 
Stew3859,

So did you only replace the 6922's?
dan_ed
2,451 posts
 
Thanks, Stew. I was contemplating a cartridge upgrade but I might do this first instead. Probably a cheaper tweak than a cartridge.
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