Maybe just for the clueless who might check this thread out, and to perhaps get something thru the OP's thick skull....
A receiver is a combination of a tuner, pre-amp and amp all in one box. A pre-amp can indeed boost signal for a particular amp's needs, or it could even be insufficient....generally you would match up with the combination of pre-amp output level (pre-outs on receivers/integrated amps as well as dedicated pre-amps for example) with the amp's sensitivity level for full use of the amp's capabilities. Adding a pre-amp to a receiver is useless in general. A receiver may or may not be suitable for use as a pre-amp for an external amp.
The speaker max wattage ratings are largely about a limit rather than any specific need or estimation of amp needed, let alone any indication the speakers will sound good at that level at all. Use an spl calculator like this for better estimation of needs
http://myhometheater.homestead.com/splcalculator.html