Sound an Vision has a new round up of budget receivers, and the #'s don't work out near so well for Marantz. Keep in mind that this unit is really cheap ($430.00 US). It is the SR4500, and the tale of the tape is:
Rated at 80 watts by 7.
Actual measurements:
One channel 118 watts
Two channel 98 watts
Five channel 76 watts
Seven channel 64 watts

Shane D