Yes I once did passive with a Wadia 27ix(I do not have this anymore), soundstage is wonderful but shrill unmusical very sharp sound.
--> this means I connected the Wadia 27ix directly to the Beverigdge OTL amplifiers (I have also same Beveridge SW-2 system as yours.
--> this means I connected the Wadia 27ix directly to the Beverigdge OTL amplifiers (I have also same Beveridge SW-2 system as yours.