Slerpy
New Head-Fier
There's almost an endless amount of 6SN7 tubes that will sound great. If you are looking for great tubes that will also give you an aesthetic match with the TS 5998 and WE421A (i.e. have a larger shape) then I recommend the 6N7G or ECC31. 6N7G/ECC31 to 6SN7 adapters would be required. If you don't like adapters, you could consider splurging on an ECC32, but they are expensive... I've also really been enjoying the L63/6J5, but again you'll need adapters for those. There's also the taller shape 6F8G which a lot of people really like, but again you'll need adapters...
https://www.ebay.com/itm/2pc-Gold-p...C33-ECC32-tube-converter-adapter/192471062593.
Those would be the drivers I'd pick, but I'm sure you will find there are many out there who will have a different opinion. There's only one way to know for sure
Been listening to the WE 422a and 5998's with stock EH drivers.
Getting the treble extension and sparkle I desire plus overall 3D staging via Utopia's.
The 60 hz hum in signal chain is louder though.
Wondering if the larger 5998's are contributing to that.
Also concerned about rolling a higher gain driver like ecc32 contributing more noise.
If I could keep current SQ with a silent background, WA22 would be my forever amp.
...until the next one.