This preamp features the Arlon circuit boards which Levinson uses in its reference components due to the superior sonics they provide. Still one of the finest (and superbly designed) preamps on the market.
This preamp has balanced inputs as well as TWO tape loops.
The power circuits are isolated from the analog sections by connecting the right-angle power cord UNDERNEATH the chassis.
I also have an (available) PS Audio Radian (right-angled) P.Cord which can further improve the sound over the stock cable.