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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.
128x128stew3859
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.
foosp
2 posts
 
Hi, I have been watching the drama unfold from the sidelines. I am considering a purchase of the Rhea and this is of great interest.

I have a question for Stew...

In the end, what did you end up with in your Rhea after swapping the tubes? If possible a list of the replacement tubes in each position would be extremely helpful.

Thanks in advance
Foo
stew3859's avatar
stew3859 OP
119 posts
 
Foo:
Its been awhile, but to the best of my recollection I replaced V1,2,3,4 with Telefunkens (12ax7) & V5,6 with Siemens (6922). Noise floor dropped considerably and sound was much warmer and more natural. A worthwhile upgrade in my opinion.
foosp
2 posts
 
Stew
Thanks for the information. I appreciate it.
cerrot's avatar
cerrot
1,700 posts
 
Just wanted to share the tube compliment I came up with. DEAD quiet, nice sparkle on the top, holographic soundstage and very nice air around the instruments.

V1,V2 & V3 - Sylvania 12AX7
V4 - Brimar 12AX7
V5 - Amperex 6922/6DJ8 (1961)

All NOS, matched pairs. Took a few months but worth the challenge.
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