I recently finished a Mid Q sealed tempest w/ 250w pe plate amp. Seems to be a staple design in the DIY community. The sub sits around 5-6 feet from my listening position, on the other side of an end table that is adjacent to the couch. This is it's second position I've tried and the ONLY one with ANY GFAF (live in girl). When the sub was in it's old position it worked great (for a while), it was up front beside one of the mains. Then one day I started to be able to pinpoint where the LFE was coming from. So, in order to finally appease the girl, and (hopefully) help the locatable bass, I moved it to its current position. Didn't help the locatable bass at all. Girl is happier. My crossover at the Denon 1604 is set to 80Hz. XO on the sub is cranked up to 140. My understanding was at these frequencies I shouldn't be able to locate the position of the sub due to the length of the bass waves being longer than my room. Now, the room opens up to a hallway and kitchen/dining area (to the right). So, it's a big room to fill with noise, hence the large woofer. So, I ask all the older, wiser, more experienced sages around here to please give me any advice or counsel that they have. Thanks in advance.