Hi
I just received my 150 watt energy sub today and hooked it up with my 2 channel 50 watt onkyo receiver. I don't know if it is because of the break-in period or something, my sub can't get very loud. I put every volume knob in the middle volume position and could barely feel the sound from the sub. I also wonder if it is because my amplifier doesn't have enough power to drive it but it is a pretty new receiver and is usually pretty efficient without requiring much power output. Thanks for your answer in advance.