Quote Originally Posted by VintageTurntable
It's a KR-4070 & I got 2 huge Speakers 4 way 6 driver,15" Woofers 150 watts & it can't shake the house. Don't know what to do??


It is only a 40 watt receiver and if the power supply is not hefty enough you are not going to move a 15" woofer.