Having owned twin Submersive HP's, twin PC-13 Ultra's, the HSU VTF 15, the current SVS PB13 with DSP and the Powered cap on order I have to shake my head when I hear the sealed Submersive can even keep up to a ported 18" driver and that it had more SPL's.
The Submersive's are an incredible subwoofer with very clean output but I don't remember them being SPL giants. For music they were top notch but I always preferred the ported SVS PC and PB13 Ultras for HT. What happened to the Captivator's 127db's I keep reading about? That is supposed to be with the optimum amp that was used in this test model.
Something doesn't sound right hear. I will wait to read more impressions as they come in. Thanks for posting the results, it sounds like you guys had fun. Thanks