Yes. I have owned the Aleph 3, 5, 2, XA 160, XA100.5 and now the XA160.5. The Aleph 2 was substantially better than the Aleph 5 and the XA.5 series is a whole different level. I have not owned the 30.5 or 60.5, but I heard the 30.5 with my speakers before I bought them. They did not have enough power to drive them properly.
I owned the 100.5 at the time and it is superb. I imagine that the 60.5 is close and would be fine if your speakers are efficient and the room is not too large. The mono blocks in both lines are better than the stereo versions. The biggest improvement is in the control of lower frequencies, but there is also a real sense of ease. They are much quieter than the Alephs with less distortion. Timbre is excellent. I go into more detail in my review of the XA100.5 which you can access by clicking next to my signature.
I owned the 100.5 at the time and it is superb. I imagine that the 60.5 is close and would be fine if your speakers are efficient and the room is not too large. The mono blocks in both lines are better than the stereo versions. The biggest improvement is in the control of lower frequencies, but there is also a real sense of ease. They are much quieter than the Alephs with less distortion. Timbre is excellent. I go into more detail in my review of the XA100.5 which you can access by clicking next to my signature.