The Bryston 4B SST2 will work fine with the F52's. But you'll find a Levinson amp, even an older one will be a big step up. I had the F50's for a few years and at one point drove them with a 4B.
I have a pair of 7B-SST2 mated to my F52s and they do very well. I find the Revels tend to like some oomph and would think that the 4B would do fine depending on the size of your room and desired listening levels.
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