Hello Willsenton R8 owners:
Am a relatively new convert to tube amps. Got my first one, the Willsenton R8, about two years ago and it came with the stock KT88s. Am wondering if any of you have switched to EL34s. What are the most significant changes to the amp’s sound signature assuming you are using the same source and speakers? Is it worth switching to EL34s given my preference for jazz and acoustic/folk?
Am more than happy with the R8’s sound, especially with its mid and lower end sound. However, the highs can be a bit harsh even though I have paired it with Focal Chora 806 bookshelves, which are warmer sounding than its comparable competitors.
Is it worth it? Only you can be the judge of that. EL34 are very musical, and for the type of music you listen to they match up. Mullard and TAD are not bad options. A lot of people like the gold lion KT77 (EL34) as well.
It won’t be a significant change but it is noticeable. The stock tubes aren’t great, especially the preamp tubes. I’d replace those first and then power tubes.
Thanks for the useful info. If I were to replace the preamp tubes, what would you suggest? And what sort of improvements should I expect? Is there a chance that the harsh highs could be lessened by changing the preamp tubes? Sorry for all the questions. Really a newbie here.
The Psvane CV181 or the RCA red plate were good IIRC. Check “A British audiophile” on you tube. He does a good breakdown on the Willsenton and upgrade path.
You can tune the amp pretty warm and smooth. Should be no harshness.
I think the best preamp tubes from current production are Linlai E series - both 6sn7 and 6sl7.
Fantastic tips. Thanks so much.