The CD layer on a hybrid sacd (cd and sacd) purportedly benefits from the DSD process and sounds better than a standard cd version. Can't say I've done a direct comparison but Sony/Philips claim it is true.
As to whether this helps your issue with lean low end, well, that's another story. "Sounds better" might not necessarily mean fuller low end. Perhaps you need to let the Krell break in a bit.
As to whether this helps your issue with lean low end, well, that's another story. "Sounds better" might not necessarily mean fuller low end. Perhaps you need to let the Krell break in a bit.