Ken,
The big thing to me is no DAC chip. You can actually play back the electrical pulses direct from the file and it is music! All you need to do is filter the stream to keep out the unwanted frequencies. To me this seams much closer (than converting PCM) to what happens when a needle is mechanically activated and then creates electric pulses through the induction in a coil. I question if this is part of why DSD sounds so much more like analog to many people than PCM, but someone a lot smarter than me would need to explain this phenomena. All that I know is that a lot of people I respect have found this technique sounds very analog for a digital source.
See the quote below from Lampi.
"THE LAMPIZATOR DSD DAC HAS USB PORT BUILT IN, SOLID STATE DIGITAL FILTER, PASSIVE DISCRETE ANALOG FILTER AND ACTIVE DISCRETE TUBE FILTER. IT DOES NOT MANIPULATE THE DATA IN ANY SHAPE OR FORM, IT DOES NOT CONVERT IT, UPSAMPLE, RECLOCK OR DOWNSAMPLE. IT DOES NOT GO THROUGH PCM PROCESS EITHER. IT IS PUREST NATIVE DSD WE KNOW OF. WE PRACTICALLY ONLY GENTLY REMOVE THE CARRIER FREQUENCY FROM THE RAW DATA AS IT COMES FROM HARD DRIVE. NOTHING MORE NOTHING LESS."