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.
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.