Kenl,
I've never heard the XA30.5 in your system, but it is definitely comfortable with a 4 ohm load.
Your room size and listening habits mean you won't need much power, so yeah I'd think the XA30.5 would be ample, assuming these things don't change.
It's hard to be sure though. The 1.6's measured significantly less sensitive than their rated 86 dB when stereophile reviewed them. (83.7 dB) On the other hand, you don't need as much 1 meter sensitivity for a line source speaker as you do for a point source speaker for the same in-room listening level.
Taking all that into account, my guess is the XA30.5 would have no problem, but I wouldn't buy without hearing it in your room.
I've never heard the XA30.5 in your system, but it is definitely comfortable with a 4 ohm load.
Your room size and listening habits mean you won't need much power, so yeah I'd think the XA30.5 would be ample, assuming these things don't change.
It's hard to be sure though. The 1.6's measured significantly less sensitive than their rated 86 dB when stereophile reviewed them. (83.7 dB) On the other hand, you don't need as much 1 meter sensitivity for a line source speaker as you do for a point source speaker for the same in-room listening level.
Taking all that into account, my guess is the XA30.5 would have no problem, but I wouldn't buy without hearing it in your room.

