Re: School me on EL84
My experience mirrors Whizzys.
The JJs have a bigger tighter low and full mids so they sound big overall but the high mids are really nasal and when pushed they get strident. But IME they take a pounding. I undrstand they have a low power version that is sweeter.
The Mullard RIs are a bit more even frequency wise, and they are smoother when pushed. They do not have alot of headroom. Some reviews descibe them as being "creamy" when pushed...do not believe it! Lol.
My TM18 came with Valvetech chinese tubes, and other than short life, I did not find them horrible when matched with the right preamp tubes. Clearer than nthe JJs, not as nasally or low endy, a bit smoother. But I have no idea if they are very durable. IME, not...
My class5 loves the smoother Mullard RI, and my TM18 seems to prefer the JJs as the mullards thin it out..but If get crazy with the master volume, the JJs harsh out. Its a tightrope with that amp.
The Mullards are probably a good place to start if you will be using the amps natural distortion. Pick something else if you need clean headroom