Thanks for the quick reply, I was probably expecting a big sound from the RF-62's, but I have to say, I am getting used to it and it could be the content I was hearing (espn basketball game). I heard some dialogue's from a blu-ray disc and the center was amazingly crisp and clear (theater like). Music sounds great too. So I am not unhappy with the RF-62's, just was curious to know should I have expected the same or louder sound from the RF-62's than RF-52's at the same volume level.
Had called Klipsch support to check if this was normal and the guy said to give it a couple of days for it break-in and you will see some difference and probably I was comparing the last sound of RF-52's to the first sound of RF-62's (if there is such a thing as breaking in of speakers)