Ayre mx-r vs. Pass xa 60.5

If your XA60.5 is properly matched to your speaker load, I can't imagine you lack bass control. Some have described the X.5 as faster than the XA.5.

My speakers are an extremely difficult load, so I decided to upgrade from the XA100.5 to the XA160.5. It made a noticeable difference.

I have only heard the MX-R in other systems and have not done a direct comparison with the Pass amps, so I can't really comment on the Ayre.

Icorem, I would consider those speakers fairly inefficient. They are similar to my old Eggleston Rosa and the Pass Aleph 2 (100 watt, Class A) were not enough to drive them properly. I then bought the XA100.5 and they were better. When I changed speakers to my current 86 dB, 4 ohm load ones, I upgraded to the XA160.5 and they are much better.

Unfortunately, IMO, the XA 60.5 may not have enough power to drive your G3s. How big is your room and how loud do you listen?