I've already asked SVS tech support about this problem but I wanted to get other people's opinion also. I just set up the subwoofer with the Samson S700 amplifier. I've followed the setup instructions on the enclosed manual. It seems that the bass is lacking. The bass is definitely there during calibration on test tones but is extremely lacking when I am watching a movie. I've calibrated the sub at 82db and the front and center speakers at 75db. *I've adjusted all the settings on the dvd player and the receiver. **I also have the volume of the sub at 3/4 full as you suggested on the subwoofer manual. *I have the LFE level at 50% . It goes from -80 to +15. The LFE level is set at -35. During testing with movies it seems that I'm missing some bass. *There's no depth and volume to the bass. * *My main test movie is the Matrix. In the SVS manual that came with the sub I use one of the bass scenes that SVS recommends. ***I use 'The Landing' scene on Scene 15, 50:51, where Morpheus knees the floor. *On this scene, *I've heard people say that there's an incredible amount of bass when Morpheus knees the ground. There's hardly any bass coming out on this particular scene when I play this scene with my new sub. *Is this true as far as the amount of bass on this scene ? If this is true, I'm definitely missing the bass that everyone is referring to. Overall, there is very little bass coming out of the sub. * What really baffles me is that I can calibrate the sub at 7db higher than the front speakers using the internal test tones. But when I watch a movie, it's almost like the sub is not even working. Could it be the receiver or the dolby digital processor is defective ?