Cary 500 MB or Mark Levinson 531H

Hello,

I am thinking of upgrading my amps. I currently own Cary 500MB mono blocks. In your opinion would The Mark Levinson 531H mono blocks be an upgrade?

I don't want to make a change for the sake of changing however I see The Levinson 531h mono blocks for sale often.

I don't have the ability to listen to The Levinson's.

Thanks for your input