So I bought the Willsenton R-800i


After I bought the Klipsch Cornwall IVs recently it became apparent quite quickly that to make it really shine it needs a tube amp to drive it. (For me at least.) After doing some (=endless) research, considering the options (budget, shops nearby carrying models I´m interested in, etc.) and also asking around on this very forum I decided to go for the Willsenton R-800i. None of my friends here shares my excitement for audio stuff or even has a comparable system, so what´s now in my living room is the one tube amp I know. And I´m delighted. Together with the speakers it gives the music the presence and glow that I so desired.

Of course I can tell that there´s more potential in this amp and I already exchanged some of the stock tubes. There are more on the way and I can´t wait to test them. For now my financial means are a bit limited so I´m not ordering Western Electric and Takatsuki 300Bs just for the sake of comparing them. In fact I´m waiting with those a bit and go for the others first.

Searching online I find a lot of information on English language forums. Somehow tube rolling is not discussed as much on the German forums I checked though – and out of curiosity (and because they were pretty cheap) I went for both West- and East-German ECC83s and a fairly random mix of other tubes from the US and the Soviet Union. I´m waiting for them to arrive and not being able to read about some of them it raises my curiosity how they will sound. Maybe crappy, maybe not so bad, maybe even very good. I´ll see. Tube rolling will take some time and I don´t mind. The amp is there to stay for quite a while.

There´s an exhaustive thread on the Willsenton amps and fitting tubes here but since I found people´s comments on this forum so helpful I´m looking forward to hear from you. I´m open for tube recommendations and would like to hear anyone´s experience with the Willsenton R-800i. Or maybe someone has questions?

As for the tubes:

805 – stock replaced for Cossor
300B – stock
6SN7 – stock replaced for Sylvania GTBs, waiting for Fonon NOS (Soviet, 1979, a bargain for 10€)
12AX7 – stock replaced with current Mullard model, waiting for West German ones from AEG and Telefunken, East German ones from RSD and Funkwerk Erfurt (both used) and also Sylvania JAN 5751 NOS (a military model)
5U4G – stock, waiting for RCA NOS black plate and Svetlana NOS „Coke Bottle“

chmaiwald

I swapped the 300Bs for a broken in pair of Electro Harmonix 300Bs.  I can still only get the 300Bs to bias to about 105ma. Hmmmm...

That is strange indeed. I hope it’s not the amp. Did you swap the other tubes?

Today I exchanged the beautiful Svetlana 5U4G for a RCA. Whenever I started the amp recently there was a little blue flash in the Svetlana. Maybe that’s ok but I took the opportunity to swap. Do I hear a difference? I liked the coke bottle look better than this puny tube now, so the Svetlana felt better. That’s all I can say.

I didn't swap the 805s or 6SN7s yet.  I threw the 300Bs in just to see.  Quite frankly, it sounds great biased at just over 100ma.  I'll reach out to China Hifi next week. 

Quite frankly, it sounds great biased at just over 100ma
 

It will be interesting to see what they say. The good news is that the amplifier is sounding great! I’ll take that result every time.😊

Charles

I just rolled in a pair of Philco- Sylvania 6SN7GTBs and noticed that Willsenton put silkscreening of its name on the stock tubes. On closer inspection they are 6H8C Russian tubes--pretty similar to what Schitt was shipping with its Freya preamp.  Good tube!