I can't speak to the X but did have a Ono. I used the Ono for a few months and found it uninvolving, so sold it and am now using and very satisfied with a Krell KPE REF.
The Krell is very quiet, dynamic and offers a very believable soundstage. I recommend the KPE easily as compared to the Ono.
p.s. the KPE uses 1994 technology and has not been upgraded
The Krell is very quiet, dynamic and offers a very believable soundstage. I recommend the KPE easily as compared to the Ono.
p.s. the KPE uses 1994 technology and has not been upgraded