cathode-follower tube preamps..

why so important cathode-follower if you don't mind to reveal?

Hi Mara

I was told that i need to get a cathode-follower preamp to match my Pass Labs amp...

all you ned is one with low output impedance such as Sonic frontiers, Manley... look at specs for the ones with bellow 1kOhm, but better if just few hundred ohms.

If you are trying to drive an amp with a low input impedance, and you want tubes then you will need one that has a cathode-follower or Mu-follower output.

However the amp has a balanced input so you might consider tube preamps that are balanced as well. I prefer tube preamps with a direct-coupled output in this case, as they play bass much better with greater extension.