I just bought one of these a few months back for an electronic music night that I promote. We were just running two MSR400s and to be quite honest, it sounded great. As the night started gaining traction and filling with people I realized that a couple of top boxes would not cut it anymore so I bought this sub. I run DJs and live electronic musicians through this for five hours a night and it delivers. The lows from this sub perfectly balance the mids and highs coming from the MSR400s. I would recommend buying this sub if you are only running powered top boxes, you will thank yourself and so will your audience.
Church Now Rocks!
We added two of these to our mid sized sanctuary and the bass can be felt throughout the room. Of couse that's when the youth group is there :)
They seriously add a dimension that was previously lacking in fidelity of our contemporary worship teams