The .8 series should be a big improvement. I had the 100.5 as well. But I will choose for a 350.8. Because it is more airy than the XA series. And the better speed and drive also will work great with your speakers.
I had a few discussions with the Pass Labs people about cables. Powercables like the Purist Limited Edition sets Pass labs to a much higher level. I could achieve better level in articulation of voices and a much wider and deeper stage with the Limited. I heard many new things which I did not have witht the XA100.5 with cheaper powercables.
Go for a 350.8 and a Purist Audio Limited powercable!!
I had a few discussions with the Pass Labs people about cables. Powercables like the Purist Limited Edition sets Pass labs to a much higher level. I could achieve better level in articulation of voices and a much wider and deeper stage with the Limited. I heard many new things which I did not have witht the XA100.5 with cheaper powercables.
Go for a 350.8 and a Purist Audio Limited powercable!!