I belong to an audiophile society in San Francisco and there are quite a few converts in the group. Some of dropped tens of thousands of dollars on the whole system and their system does sound terrific. I can't go that far but if you are lucky for $300 or $600 for a pair you could get great system improvement.
With my Magnepan speakers I had a better improvement with these ( 2 sets ) then I did using the new PS Audio Monoblocks for $15,000!
Everybody's system is different but I encourage you to give these a try. Probably 80% chance you will be very satisfied.