TAD or JJ?

Hey guys!

I bought a Hagen the other week (which rocks!!) but I need to buy new preamp tubes.
I´ve narrowed it down to JJ's or TAD's.

Have any of you guys tried them both?
Is there a noticeable difference?
Pros and cons?

All the best,

U

TAD is a distributor, JJ is a tube manufacture.

Peter Diezel":3f89depe said:

TAD is a distributor, JJ is a tube manufacture.

Click to expand...

Ah, I did not know that!

I know the Ruby´s used to be the main go to preamp, but they are hard to come by in Europe.
So what´s the main difference between them (apart from manufacturing of course)?
Is there a large difference soundwise?

I´m only using JJ's in my power tube section.
Although I´m always switching between KT77's and E34L's because I love 'em both

Tungsram.