I agree with Lost Bears.
The Ref 5se is significantly better than the Ref 5. Also, I had a pair of Ref 210s in my system and now have a Ref 150 with KT 150s. I prefer the Ref 150. I thought the Ref 210s were a little too light and airy for my taste. Not so with the Ref 150 or, if you can wait, Ref 150se. I think you will be disappointed going from the Levinson to Ref 210s. That would be the last thing I would do if I were you.
The Ref 5se is significantly better than the Ref 5. Also, I had a pair of Ref 210s in my system and now have a Ref 150 with KT 150s. I prefer the Ref 150. I thought the Ref 210s were a little too light and airy for my taste. Not so with the Ref 150 or, if you can wait, Ref 150se. I think you will be disappointed going from the Levinson to Ref 210s. That would be the last thing I would do if I were you.