Hey, so i was just curious whether I should purchase a whole new Reciever or should invest in an amplifier. Right now I have a Kenwood 5150 which puts out 50W/channel, I am powering a pair of Cerwin Vega! E-715's, I was looking at a Onkyo TX-8555 reciever, or a smaller 100W/channel amplifier... Any ideas?

Thanks