I only know the SF Line3.
It is a fantastic machine....
I tried many different tubes,Sovtek, Electro Harminix, Jan Philips, RCA, Mullard but the real quality jump has been to replace the Digital Volume Control CS3310 with the new BB PGA2310......a new pre.
I have the 1996 version, I do not know about the last.
Again, judge with yr ears and musical preferences.
the pre is very important but it is a piece of the chain.....
It is a fantastic machine....
I tried many different tubes,Sovtek, Electro Harminix, Jan Philips, RCA, Mullard but the real quality jump has been to replace the Digital Volume Control CS3310 with the new BB PGA2310......a new pre.
I have the 1996 version, I do not know about the last.
Again, judge with yr ears and musical preferences.
the pre is very important but it is a piece of the chain.....