I just got a pair of new production Telefunken E88cc tubes in. Running them for two days now.
Bass has better control than JJ brand, mid and highs are more open, natural.
Noise, what noise, so good for phono stages. Beats Genalex hands down, which has zingy highs, and looser bass.
Less expensive as well.
Beats the Bugleboys (got 2 dozen of them, Qs)
The tube just "sounds" a little more realistic, that last bit of realism.
This tube "sounds" near perfect, if not perfect.
If it lasts like the JJs do, approx. 26,000 hours.
This is one heck of a tube.
Cheers