just bought these speakers and have a yamaha receiver trying to push them.receiver was built in 1977,so i guess it s a little old.anyways when i turn volume up the speakers dont turn off but they do get quieter.called cerwin vega and told them what was up and they said my receiver wasnt powerful enuff to push them.so my question is what kind of receiver do i need and what kind of power.ive looked at some new yamahas that i think could push them,but i just dont know.would really like some help on this one