Hi N@Z
At home I am using The MicroZOLT with Ken-Rad VT-231 and Sylvania 12AT7WB green label tubes, headphone AT-W100. Sometime with the DT-880 during the weekend.
Comparing the sound using the DT-880 the bass coming out from the MicroZOLT is tighter and the Naim Headline is more relax (not as puchy or tigth). Excuse me for the term I used if wrong, please correct me.
I am use the PSU that come with Naim Headline it could be better if upgraded to PSU like the Hi-cap or Flat-cap. As I am not going to depart my money for the high Niam PSU (may give a little more tight bass), the cost for this item is higher PSU which I can buy another Headphone amp.
Lastly the Naim Headline is not bad Headphone amp which I still will keep (at the moment), still I would like to find a headphone to suit my hearing preference.
I am contacting Ramesh soon for the audition of the Corda HA-2 and the Prehead amp.