I just got this pair of JBL L5 for 200 dollars any suggestion what kind of amplifier i need to used its hook up now on my sourround reciever in my garage its yamaha rxv659 i have a ONKYO M-504 AMP AND A P-304 PREAMP..but thats on my living room..and i dont want to move it..any suggestion how much power do i need to drive the speaker

Thanks
T.b