I've been using this SVS sub for about a month and I'm quite happy with it. Although I don't have any specific measurements but I feel that the bass is very quick and very tight. It's also loud and low more than I wish for. I put the sub at the back of the room but the bass I hear comes from the front and it blends well with other channels. What I like the most is that the other speakers suddenly sound better, and the whole thing seems to have another dimension.

tvd51