Thank you all !! The RF15's are 96db 100 watts, RS35 97db 125 watts, RC25 96db 125watts all 8 ohm. These are efficient speakers. Maybe better power as was mentioned or a reciever that is delivering the rated wattage to all channels which was also mentioned. No blue ray yet, I have a 35 inch CRT tv that is 20 yrs. old. My DVD is svideo, digi optical and so is the STD def. DTV.
The reason I was asking for opinions is that I was told at two big box stores and two local high end stores that a newer, more pwerful reciever would improve my sound. I was told it would improve the low end and help the mids and highs. The brands were pioneer elite, yamaha, onkyo, marantz, nad. I think they wanted to make a sale. Maybe they are all correct and I would hear an improvement. The only way to know is to try it and that will have to wait for now.
Thanks again