Just curious if anyone has had a chance to hear these subs yet and what their real world experience has been. Do they actually go as low as advertised? They have 25-120 listed as frequency response and 20-400 listed as the -3 response. I can't find a graph anywhere to see the visual representation of this. All I see are just manufacturer listed specs. Also, I'm guessing they are not going to be all that tight and punchy seeing as they are 21s but haven't been able to hear them for myself so I am interested in hearing from anyone who has. And any idea what the approximate street cost of these will be?