Soulution 501 monoblocks vs. 710 stereo amp

I understand there are different perspectives to compare monos vs. stereo amp, because there are so many different variables that you have to enter your formula. But is there anyone who have had experience of comparing these two amps? Other than channel separation and bandwidth issue, what other things do I have to look into before deciding between these two. Or for the similar price range, suggest me different options. I have a soulution 720(upgraded to 725) preamp and dynaudio evidence temtation just for the reference.
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