A10 Mk2 has a remote. The earlier ver RA10 did not have a remote i think.It's the same spec, the 10 does without a remote.
From Rotel website it appears that both are 50W/8R with 4R rating for A10Mk2 not mentionedThe A11Mk2 has 10wpc more, digital inputs and Bluetooth. It's interesting to see that it does away with the (useless) display of the A11 Tribute.
Either will be fine with your speakers, and provide solid and reliable amplification.
From Rotel website it appears that both are 50W/8R with 4R rating for A10Mk2 not mentioned