I recently aquired the Black Ice F360 Pre, uses 6sn7. I previously had a Rogue pre that also used 6sn7 and
recall it had a wide sound stage.
I picked up a used Khartago Stereo, been reading Klaus actually bias these based on speakers used.
What if you switch speakers, is this something you can do yourself? Most tube amps, you can adjust
I’m still waiting for my 1.7i. Plan to do an A n B between the Khartago Stereo and a Tube amp.
I guess it is also a matter of the bias which would make it perform optimally.
Does Klaus respond via email?
What is the turn around time for bias or upgrades?
That is a big load for just one person to work on?