I'm thinking about taking some measurements when I get back to the US to see what type of bass response my system is getting. Of note, this is a 99.9% music system. For those who measure, any suggestions on complex DSPs and room measuring solutions. For the room measuring equipment/software budget, I'd like to stay well under $400. Currently, I'm not sure what type of frequency response I'm getting, but I'd like to see it on a graph specific to my house. For those who use complex DSP solutions for bass, any lessons learned that I might benefit from? I'm keen on the new Funky Waves 18.# (not sure if the 2.4KW amp will require a 20 amp circuit which could be an issue) and the Velodyne DD18 Plus since both these subwoofers have a complex DSP option. Thanks!