Reubent above is correct on the 3A DeCapos. I am using Reference 3A DeCapo I speakers (92db) on Skylan 24 inch stands each filled with 50# of sand driven by 9 WPC 300B amps. These speakers will play much louder than I ever listen to music; my room is 14 X 18. These speakers dont need a lot of power to sound good and have a very natural presentation. The bass is very good however I am using a REL sub for a more fuller sound only because I had the sub on hand, but its totally optional. Let me know if you need more information.