Rives, your company makes the PARC room correction processor. Would it not be better to be proactive and prevent the room resonance in the first place with a room correction processor. The problem that I see with tube traps is that they not only attenuate the resonant mode frequency but all other frequencies in that range as well. The spike is still there, but the problem now is that the surrounding frequencies have been attenuated too much. Tube traps need to be more frequency selective, and that's not going to happen. Doesn't the PARC attenuate only the frequencies that cause the bass boom and leave the others untouched? To me it would make more sense avoiding room resonance in the first place by having a correct room dimension, constructing walls with ASC iso-wall damp material, using a room correction processor, etc.