It's pretty amazing what the BG Radia system can do. I had 4 of the full size modules briefly to demo in my room. Actually was going to use them is my Demo room, as I am a dealer for them as well. But after testing them out for awhile, I found they dropped pretty quickly under 25Hz, and I wanted pretty flat response to at least 15Hz so I sent them back. But they dissappeared more than any subwoofer I have ever owned (well over 20 through the years), and sounded incredible for music! BG Radia makes some great speakers overall, I love my theater system!