[Mr. Tadashi]

I can say for the D2000 the low gain is what you are looking for.(I have been listening to it using grado's lately and I barely turn the knob to get it to my listening volume.) I can't comment on the PK1's directly since I never got a chance to use them with the lisa while I had them but comparing to the headsix I have, it should be able to drive them well in low gain.