I had the Paradigm Ref 60's and upgraded to Merlin TSM-M's which I purchased used (can be found around $1200 used). I still use Studio 20's for the rears, and Studio CC and was worried that the TSM-M's would not blend in well with the Paradigms when watching movies/TV. It worked out much better than expected and I'm quite happy.
I have a good subwoofer so I don't have a problem with the lower frequencies. The TSM-M's will not improve much on the low end of your Studio 20's, but will improve in every other aspect.
I have a good subwoofer so I don't have a problem with the lower frequencies. The TSM-M's will not improve much on the low end of your Studio 20's, but will improve in every other aspect.