tutetibiimperes
100+ Head-Fier
Folkvangr sounds magical with the ten Russian tubes that come with it and each cost less than an adapter.
Though your proposition is tempting, I am keeping my 5670 rolling to my Vali 2++.
I thought it sounded nice with the stock tubes but I did get a pronounced hum.
I tried the GE JAN 5670s as preamps and that helped, then Philips tubes in the other 8 slots and the hum went away.
Got a good deal on the WEs so decided to go for it and they sound amazing.
Plus now everything in the amp is American Made.
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