Maybe he was using 100S amps with the contour control and no reverb or tremelo. Someone said recently that you could order them wither way. Of course Sunn did stuff a bigger transformer and 2 extra tubes in the 200S amp while they were prototyping the 2000S. So...... if it is a 200S with extra tubes and larger iron, is it a 200S or a 2000S?
Or is it a 100S?